How to read your ammo, (pressure signs)

  Рет қаралды 123,694

MarkandSam AfterWork

MarkandSam AfterWork

Күн бұрын

Пікірлер: 257
@willo7734
@willo7734 Жыл бұрын
As somebody who’s only been handloading for a short time I greatly appreciate this info. This is an extremely valuable reference.
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Cheers
@kentuckywindage222
@kentuckywindage222 2 жыл бұрын
Mark this video should be watched by every beginner or novice reloader. Easily understood and thoroughly explained. Excellent content! Keep'em coming!
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Man, Cheers
@MrGsteele
@MrGsteele 11 ай бұрын
Nice, straightforward, simple English explanation that you don't need an encyclopedia or glossary to understand. Welcoming to beginners and convincing that internal ballistics and handloading is not restricted to some egghead priesthood, but that a reasonably diligent and observant mere mortal can do it and be safe. I applaud your efforts to translate the "Church Latin" arcana of the reloading world into accessible information like this. Great job.
@markandsamafterwork
@markandsamafterwork 11 ай бұрын
Thank you sir, Cheers
@TheLoveFindersBand
@TheLoveFindersBand Жыл бұрын
Another awesome video, after shooting for 50 years and reloading on and off for over 40 years Mark articulates things that I kind of knew but had never put words to. Many thanks, wonderful content.
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Thanks Man, Cheers
@psychodadsn
@psychodadsn 2 ай бұрын
I'm a new reloader, and thought I knew some of these signs but didn't necessarily understand them. Thanks for this in depth explanation, I found this video invaluable. Thanks so much!
@markandsamafterwork
@markandsamafterwork 2 ай бұрын
Cheers man, thanks
@Leverguns50
@Leverguns50 2 жыл бұрын
This is one of the better videos that I’ve seen on the subject, keep up the good work brother
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Man, Cheers
@bootsandall3612
@bootsandall3612 2 жыл бұрын
This advice is especially important for load development without using a crony. Lots of people in my neck of the woods rely to much on computer generated (kwikload etc) data. I recently started load development with new powder and bullet. Got my min/max load from the manufacturer and put all the dope into kwikload. Half way though the min/max I could not open the bolt. (Velocity were still way down) Check every possible option for the problem and could not find any. Went to a ballistician and he had a look at all my data and determined that the info I got from the manufacturer were computer generated but never tested.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Man, and yes need to verify with more than one source as a rule, Cheers
@joshuagibson2520
@joshuagibson2520 2 жыл бұрын
Chrony is a must. If someone's handloading and already invested in it, another $100 spent on a chrony shouldn't break the bank.
@MsKatjie
@MsKatjie 2 жыл бұрын
@@joshuagibson2520 Sounds like good advice.
@lestergillis8171
@lestergillis8171 2 жыл бұрын
I have a CHRONY. However, this is STILL good information for those who do have one. And YES...if you hot-rod your reloads, it WILL also make the brass STRETCH faster. Overly long cases beyond SAAMI specs can be VERY DANGEROUS to reuse. They MUST be trimmed once they near maximum length.
@lestergillis8171
@lestergillis8171 2 жыл бұрын
@@markandsamafterwork Subscribed (reloader).
@ctapmgriley
@ctapmgriley 2 жыл бұрын
Very good information Mark. Thanks for explaining that bolt lift is potentially the first sign of excessive pressure.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers J
@williamfeldner9356
@williamfeldner9356 Жыл бұрын
The best video I have found on pressure signs in reloading!
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Thanks Will
@skiphinson8620
@skiphinson8620 10 ай бұрын
Very nicely explained! All handloaders need to know how to read these signs and interpret the information the info the cases tell.
@markandsamafterwork
@markandsamafterwork 10 ай бұрын
Thanks Skip
@gilream
@gilream Жыл бұрын
A great refresher for experienced hand loaders and a must-see for the beginner. Everyone should have the utmost respect for pressure!
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Cheers
@mickeymouse9654
@mickeymouse9654 2 жыл бұрын
Your tips in the videos are very detailed and instructive! Thanks for the info!
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
thanks Mickey
@otiscarlwhite8745
@otiscarlwhite8745 Жыл бұрын
Had to comeback and revisit this one. Great content as always my friend. Thanks for leaving it in its original form.
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Cheers Otis
@jcarne1015
@jcarne1015 2 жыл бұрын
Good info Mark, thanks for taking the time to make these informative videos. I hope others will see the value and help support your efforts.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thank you John, glad you like them, Cheers
@PhAnToM90CF
@PhAnToM90CF 4 күн бұрын
Just gained yourself another subscriber, great video and it explained perfectly what someone was trying and failing to explain to me before.. as a new hand loader this is a super helpful video! Thank you.. now to check out more of your channel!🙂👍🏻
@markandsamafterwork
@markandsamafterwork 4 күн бұрын
Awesome, thanks Man
@jimbefit3073
@jimbefit3073 20 күн бұрын
Thank you for sharing your expertise. You are the only KZbinr I listen to AND take as gospel everything I hear. Because you are living the dream, observant with a high level of riflemanship(?) development sense, and the ability for accurate diagnosis, conclusions and solutions. Until I do what your doing or better, your word is gospel. Not that your always right- but for now you are!! Thank You. God bless you and continue to receive wisdom. However you acquire it! (Hard work, I know!)
@markandsamafterwork
@markandsamafterwork 20 күн бұрын
Thank you Jim, glad you like, Cheers
@robertgore9449
@robertgore9449 Жыл бұрын
Thanks Mark. You are a great ambassador and teacher. I enjoy your videos a ton.
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Thank you Rob
@nuthintoprove
@nuthintoprove 2 жыл бұрын
I'm new at this and as always, If you know what you're talking about, you can explain it in simple terms. Mark does just that. I love this channel.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
cheers man
@philliptaylor2519
@philliptaylor2519 2 жыл бұрын
Very timely info, I recently fired some factory Oz Outback 165g Gameking 308 ammo in my Ruger Scout and all 5 rounds had issues with 1. Tight Bolt lift, 2. Very flattened primers and 3. Ejector marks on case heads. These rounds all felt and sounded harder than the Federal I usually shoot and I wasn't prepared to shoot any more of these. After watching your presentation I am of conclusion that there is something amiss with this box of ammo and will err on side of caution and not shoot it again in this rifle. Thanks again & Cheers
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Man, and yes good plan, Cheers
@glennllewellyn7369
@glennllewellyn7369 2 жыл бұрын
Bought one in 300 Blackout while knowing of a common problem. Ruger uses a looser chamber on these. I had a couple of misfires in a box of 20 Federals. The case shoulders aren't supported in the chamber. The fix is to have the barrel set back. If you reload properly - no probs. Dunno about the 308... Good luck mate. NSW
@joedropulich3664
@joedropulich3664 2 жыл бұрын
Thank you, I did after 43 years of handloading learn somethings from your video.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Joe, Cheers
@NZHardhouser
@NZHardhouser 2 жыл бұрын
Another timely utterly informative video - with clear and easy to understand examples. Thank you. Like most, in the process of finding loads during reloading - powder nodes at the moment vs stable velocities / ES etc... bit concerning is the compressed loads ADI powder asks for giving good results ( Looking at you .223 Rem and ADI 2208) - a little flattening but not excessive. On a side note with regard to brass metallurgy - having built a home made induction annealer - its astounding in the different timings that the same calibre brass requires, vs differing manufacturers of centrefire brass. Brass is not brass! Finding it hard to find metal makeups vs differing manufacturers. I read a forum made a few years back where spectrometry was used to determine the values of each metal used in brass cases. I learnt there is a tiny %age of lead in brass too.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Man, Cheers
@jerry3675
@jerry3675 3 ай бұрын
Thanks! I'm working up some loads and needed a refresher on overpressure.
@markandsamafterwork
@markandsamafterwork 3 ай бұрын
Thanks Jerry
@timothymroberts2949
@timothymroberts2949 2 жыл бұрын
Very insightful. I have a Remington 700 in 7mmRemMag I have struggled with extraction issues since day 1...used only factory loads. Had issues with brass sticking after 3 rounds regardless of brand of ammo. Now I have something else to look at. Thanks for sharing your knowledge. Cheers
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Tim, glad you liked.
@davidderby436
@davidderby436 5 ай бұрын
Same prob wirh my 300 RUM
@taylorharbin3948
@taylorharbin3948 26 күн бұрын
This is comforting. I’ve got some .270 win loads I’ll be testing soon and don’t want to blow up my gun. I’m glad there are warning signs after just one or two rounds.
@markandsamafterwork
@markandsamafterwork 26 күн бұрын
Thanks Taylor
@davidhandyman7571
@davidhandyman7571 2 жыл бұрын
Thanks Mark. I appreciate your share your knowledge and experience.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Dave, Cheers
@HillDogTV
@HillDogTV 2 жыл бұрын
Well Said man, this is great info for those who are unsure or new to reloading!!
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers
@jerryhammack1318
@jerryhammack1318 2 ай бұрын
If I had this information 35 years ago I would have a lot more brass to safely reload now. The .17 Remington, .220 swift , .22-250, .17 Remington fireball are lovely cartridges but over pressure problems especially with the. 17 Remington were learning curves!😂😢😢😂😂❤! Thank you for making the effort of educational and quality work on the subject of pressure in reloading! God bless you and thank you again!
@markandsamafterwork
@markandsamafterwork 2 ай бұрын
Thanks Jerry, Cheers
@leftcoast9090
@leftcoast9090 2 жыл бұрын
Your component remark is right on the mark with some chambers. I have one rifle that is extremely sensitive to brass choice. No other signs of pressure except difficult extraction on some brass. After weighing different brands of brass and measuring before and after firing, I found one brand that worked without any issues. Be it different alloy that rebounded back after pressure or I found that brand of brass by in large weighed less than more troublesome brands. To me meaning alloy and amount of metal actually in the case. A simple change to a different brand of brass completely solved the issue. Thank you for what you do.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers Man, thanks
@lestergillis8171
@lestergillis8171 2 жыл бұрын
@@markandsamafterwork Some manufacturers may actually make their brass THICKER ON THE INSIDE than others. If this is the case, internal capacity will be slightly reduced. This will of course, mean increased pressure.
@ratherbefishing4225
@ratherbefishing4225 2 жыл бұрын
👍 thanks Mark. Came back to this one for a second viewing. Going to the range this evening to find my safe max load for a new rifle, hopefully it will group acceptably at that point.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Awesome, cheers
@robertbrewer2055
@robertbrewer2055 2 жыл бұрын
A great video. Thank you for being very clear in what you were describing. It sure made things clearer for me!
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Awesome, Cheers
@duggydo
@duggydo 2 жыл бұрын
The worst stamping I ever had on a piece of brass was after a barrel replacement for a 22-250. Primer didn't show much over pressure sign, just brass stamping really. Turns out the chamber had been over polished and case wasn't gripping well on the sides. A local gunsmith explained to me what was going on and fixed it.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Duggy, Cheers
@paulmallery6719
@paulmallery6719 Жыл бұрын
Lite hone
@ReeseBose-db8tj
@ReeseBose-db8tj 6 ай бұрын
You don't want an oily chamber either
@ianbantjes3785
@ianbantjes3785 4 ай бұрын
😊
@arthurshingler2025
@arthurshingler2025 2 ай бұрын
Yeah, A overly slippery chamber... will increase the case backthrust.
@colinreid7305
@colinreid7305 2 жыл бұрын
Using factory .308 Wolf steel cased rounds appeared to create pressure issues including difficult bolt lift and two cases of split rims. No issues with different brands of factory ammunition. Thank you for a great video.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Colin, Cheers
@EverydayPeople2471
@EverydayPeople2471 2 жыл бұрын
Worse case I had was with factory ammo, hard lift extraction and split brass. Shot 3 rounds, all did same so pulled bullets, dumped powder and reloaded safer rounds. Great video sir.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Doug, glad you liked
@GoldenClays1
@GoldenClays1 5 күн бұрын
Very useful information. Thanks for posting!
@markandsamafterwork
@markandsamafterwork 5 күн бұрын
Cheers
@jasonweishaupt1828
@jasonweishaupt1828 Жыл бұрын
Old Schoolers use to measure the web just in front of the rim using a 0.0001” micrometer. They used a veneer caliper looking for 0.00005” of an increase in diameter. This is spoken one half ten thousands.
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Cheers
@jasonshults368
@jasonshults368 3 ай бұрын
That system is flawed because even from lot to lot (some manufacturers more than others) the case heads will have different hardness and malleability.
@aussiesteveakastevecallagh2280
@aussiesteveakastevecallagh2280 2 жыл бұрын
Thanks Mark Great video Mate, very well presented , Steve .
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Steve, Cheers
@MrMillez
@MrMillez 8 ай бұрын
Thank you for sharing your experience. Pure gold for me.
@markandsamafterwork
@markandsamafterwork 8 ай бұрын
Cheers Mna, thanks
@paulmcdonald9074
@paulmcdonald9074 Жыл бұрын
I bet you check sparkplugs in the same manner, as you said it's not one size fits all. Very informative video...... Thanks for all you do
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Cheers Thanks Paul
@spineynorman303
@spineynorman303 2 жыл бұрын
Thanks for the great info Mark. I'm heading up the range tomorrow to test some reloads a lot wiser thanks to this video. Cheers
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers Spiney, thanks
@stevebostic4874
@stevebostic4874 2 жыл бұрын
Thank you for sharing instructional videos. I respect what you do very much
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers Steve, thanks
@All_I_can_say_is_Wow
@All_I_can_say_is_Wow 2 ай бұрын
I love your videos. Thank you for sharing information!
@markandsamafterwork
@markandsamafterwork 2 ай бұрын
Cheers Man
@RealHank1791
@RealHank1791 2 жыл бұрын
Well done, thank you both. Best info vid on pressure signs I've seen.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Hank, Cheers
@richardfitzsimmons5244
@richardfitzsimmons5244 15 күн бұрын
I measure the case head just in front of the extractor groove. 1/2 of a thou. of expansion at this point indicates top pressure. Also is where typically You'll find optimal load performance.
@markandsamafterwork
@markandsamafterwork 15 күн бұрын
Cheers
@oddursigurdsson3046
@oddursigurdsson3046 2 жыл бұрын
Great info and explanations, thank you kindly for sharing this to us out here :)
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Oddur, glad you liked, Cheers
@giovannitallino6606
@giovannitallino6606 11 ай бұрын
Excellent video! I'd like to add a note to the theme of excessive pressure signs. At times these signs (cratering of the primer, difficult extraction, etc.) may appear even though the load is well-balanced and should not generate excessive pressure. When the round goes off, the case expands and adheres to the chamber walls, reducing the backward impact on bolt face, ejector plunger, firing pin hole, etc. Almost immediately the brass contracts again, and ejection is normal. However, if the sizing lube has not been removed completely from the reloaded brass, the case does not adhere strongly to the chamber walls and slams violently against the bolt face, producing false signs of excessive pressure. It happened to me once when I fired a few .30-'06 rounds that I had reloaded. It was a very moderate load, and all the components were the same as those I had used before: same primers, same powder of the same lot, same powder charge, same bullets, same everything. Yet the bolt was hard to lift, the cases were hard to extract, and the primers were cratered. The rifle was a Remington 700, with a plunger extractor, and the circular mark where the brass had flowed into the plunger hole was well visible. Before this batch that gave these signs of excessive pressure nothing untoward had ever happened with that load. The problem was not an excessive powder charge;, the problem was that I had forgotten to remove the sizing lube from the cases. After I did wipe them scrupolously clean, the remaining shells functioned perfectly. I do not recall ever reading anywhere about this sort of problem, so I thought I'd share my experience with you all. Make sure that no trace of resizing lube remains on the cases! I would like to add one thing: if one relies on signs of excessive pressure when reloading for a lever-acrion rifle, planning to reduce the dose of powder as soon as such signs appear, one may risk to damage one's rifle, as cases fired in lever-action rifles may fail to show signs of excessive pressure before it's too late and damage may have already occurred. I read this in a reloading magazine, so I cannot claim to have had any personal experience with excessive pressure in lever action rifles, and not everything you read in a gun magazine is Gospel...
@markandsamafterwork
@markandsamafterwork 11 ай бұрын
Cheers
@PoliticallyInsensitive
@PoliticallyInsensitive 5 ай бұрын
Been thinking about getting into reloading of and on for a long time- like a decade at least. Always wondered what people meant by "pressure signs".
@markandsamafterwork
@markandsamafterwork 5 ай бұрын
Cheers
@dhbikerczar
@dhbikerczar 2 жыл бұрын
Interesting you mention Lapua brass with the 338 LM. I have found that exact thing with brass from about 2 years ago. Older brass was fine.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Same here, changing to Peterson for some testing soon, Cheers
@dhbikerczar
@dhbikerczar 2 жыл бұрын
@@markandsamafterwork I have my Peterson brass, but I’m in the process of rebarreling to 33XC. I found this exact same issue with 300 Norma mag lapua brass this year, Peterson in that rifle is holding up much better.
@Slav67
@Slav67 2 жыл бұрын
Thank you, I am new to reloading and this is precious information👍
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers
@wayneschenk5512
@wayneschenk5512 2 жыл бұрын
Watched my brass for a long time great advice.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Wayne
@pauli2559
@pauli2559 2 жыл бұрын
I like your work. Since you were reading brass. I thought you could mention dangers of case separation do to over sizing or pushing the shoulder back (excessive head space). Seeing a light color brass ring above base webbing. This being case stretch and weakening. In that case discards the case.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
We have videos to discuss that, what to look for and things where you are likely to get that result, Cheers
@scott9872
@scott9872 10 ай бұрын
Another sign that I have noticed is expansion of the web. Measure the diameter of the case inside the extractor groove... a few thousandths of growth in the diameter is a definite sign of pressure.
@markandsamafterwork
@markandsamafterwork 10 ай бұрын
Cheers
@CarolinaReloader
@CarolinaReloader 2 жыл бұрын
Great intro to reading brass
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
thanks Rob
@claygood2844
@claygood2844 2 жыл бұрын
Well done. All the signs to look for.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Clay
@gabeisthemanyo
@gabeisthemanyo Жыл бұрын
might have saved my rifle; i was having failure to extract issues with my remington 700. would have to knock the back after every shot. i took some of thr casings home and watch this video. something is def off with the pressure. ty
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Cheers Gabriel, thanks
@PMCAUTOS
@PMCAUTOS 2 жыл бұрын
New to reloading fantastic video like them all fantastic guys thanks
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers Man, thanks
@CHenry1951
@CHenry1951 2 жыл бұрын
Thanks always work you work loads up slowly........................................................
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers
@paulsouth4794
@paulsouth4794 2 жыл бұрын
good info, I'm working up 6.5 SE with 100gr pills . i have M70 zastava SS . I have left the reloading manuals behind and have just hit the spot at 3200fps where I'm planning to stop . I have no pressure signs at all and feel like I'm playing blind mans bluff at times. getting information like your vid has been hard to come by. thank you for your help
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Paul, Cheers
@johngarrie2633
@johngarrie2633 5 ай бұрын
Information every Reloader should know !! I know now thinks buddy 👍🏻
@markandsamafterwork
@markandsamafterwork 5 ай бұрын
Cheers John
@wolverinekut
@wolverinekut 2 жыл бұрын
As always great job 👍🔥💯
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thank you, Cheers
@pstewart5443
@pstewart5443 Жыл бұрын
There's only one area I've found this to not be true. That's the AR-10/LR-308 platform. Man, when those things are over-gassed it will knock out primers, make extractor marks, and blacken the entire case. For bolt action, when I can taste brass shavings, I back her down a 1/10 grain...sometimes 1/5 grain, that's 2/10 for you Northern states folks. :) Great presentation and discussion Mark!! I often read about pressure signs, but if you haven't seen it or seen how it can mess up your brass and gun it's difficult to get a good idea of what is just soft alloy vs actual pressure signs.
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Cheers
@DanielBoone337
@DanielBoone337 2 жыл бұрын
Another great video with really good info as always keepem coming!!!
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Dan
@michaelreed1380
@michaelreed1380 2 жыл бұрын
Great information, thanks for the effort. Just ordered a shirt from you guys. Cheers!
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thank you Michael, Cheers
@1.forestrunner
@1.forestrunner Жыл бұрын
Very good information!
@markandsamafterwork
@markandsamafterwork Жыл бұрын
cheers
@kajetandziebaj6405
@kajetandziebaj6405 2 жыл бұрын
serious info on this channel. if you want real info on the topics seldom discussed, this is the place to be.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks man, Cheers
@warrenpolidori5541
@warrenpolidori5541 10 ай бұрын
Great video, very informative.
@markandsamafterwork
@markandsamafterwork 10 ай бұрын
Glad you liked. Thanks Warren. Cheers
@d-arts7139
@d-arts7139 2 жыл бұрын
great vid. been awhile since ive reloaded, but ive collected most of the tools once again and expect to reload next year. i keep buying loaded ammo when i find it available. itll give me that much more brass... well, thats my justification! but i enjoyed loading years ago and i look forward to it again.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Awesome, Cheers
@davidchampagne464
@davidchampagne464 6 ай бұрын
Great video man thank you.
@markandsamafterwork
@markandsamafterwork 6 ай бұрын
Thanks Dave
@robcullen9984
@robcullen9984 2 жыл бұрын
Thanks Mark Cheers Rob
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Rob
@johanbdal
@johanbdal 2 жыл бұрын
It’s worth to mention that excessive head space will result in flat primers as well. If you have a loose chamber and fully calibrate your brass the primers will look terrible.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers
@tylersmith754
@tylersmith754 2 жыл бұрын
Very well put. I have also found what works and looks good on one brass might not on a different brand of brass with the same load. Each brand of brass needs it's own load development.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers Tyler
@beestoe993
@beestoe993 7 ай бұрын
Sometimes a poorly made rifle bolt can give a ring around the firing pin at the prime making it look like excessive pressure. But when that is the case it can do it even at low pressures. Just something to watch for.
@markandsamafterwork
@markandsamafterwork 7 ай бұрын
cheers
@gartekk1987
@gartekk1987 4 ай бұрын
Sabatti rifles do that a lot. It actually scared me the first time I shot my hand load cause I thought there is overpressure there.
@robertstrong-g5q
@robertstrong-g5q Ай бұрын
What's crazy for me is some primers completely flatten out and crater come right out with zero issues and some don't look like any over pressure signs slightly rounded primer edges no bolt impressions get stuck I the chamber makes me scratch my head
@markandsamafterwork
@markandsamafterwork Ай бұрын
Always in the details Rob, Cheers
@aaronunterseher1627
@aaronunterseher1627 6 ай бұрын
I just did a ladder with 308win using varget in a remington 700 From the bottom of the ladder up to the top, i got cratering and extrator marks (couldn't hook my nail on it) No stuck bolt No heavy lift Velocity was on track (25 fps faster than book with 1 inches longer barrel Got a little worried so i started looking up videos I will say the SD and ESs were fantastic single digit sds and es in the teens
@markandsamafterwork
@markandsamafterwork 6 ай бұрын
Awesome, Cheers
@kencurtis508
@kencurtis508 2 жыл бұрын
Great video, thanks for sharing
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers
@shootersara
@shootersara 9 ай бұрын
Great video for beginners🤙
@markandsamafterwork
@markandsamafterwork 9 ай бұрын
Cheers Man, thanks
@dantankunfiveancestorsfist
@dantankunfiveancestorsfist 11 ай бұрын
Thank you very great informative video. I learn my lesson thank you for sharing.
@markandsamafterwork
@markandsamafterwork 11 ай бұрын
Cheers
@nathanpleli5780
@nathanpleli5780 Жыл бұрын
Awesome video Mark! I have an interesting pressure sign that I'm trying to decipher on factory ammunition (Federal 170gr SP 8mm Mauser ). The bolt unlocked and extracted smoothly, but it looks like the primers backed out a fraction of a millimetre on most of the cases, the primer's edges are still rounded, no cratering around the firing pin strike (it is slightly off-centre though) , no other pressure signs than the primers backing out. It was my first time firing the rifle since I bought it, the dealer said it had its headspace checked and it was ok. Any clues why it could be doing this?
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Would be to do with the bolt face, get a gunsmith to look, Cheers
@concernedaussie1330
@concernedaussie1330 2 жыл бұрын
Fantastic work guy’s!
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers man, thanks
@nealbushnell5556
@nealbushnell5556 Жыл бұрын
Thanks Mark. I've been reloading my own ammo for 67 years and am always open to more/varying sources of expertise. A specific issue I've been dealing with for decades concerns my modernized 1903 Springfield. I'm now on my 3rd barrel with this weapon, first was the original 30/06, then a .240 Weatherby and now a 6.5/06 Ackley Improved. My primers consistently protrude/crater into the firing pin hole without any other apparent (to me) pressure signs. My bolt lift is easy etc. My case life with this new chambering seems adequate albeit I've not shot a lot of rounds through the weapon at this time. My .240 Weatherby cratered primers also. I'm wondering if you can advise me about the recommended difference between my firing pin outside diameter versus the firing pin hole diameter in the bolt face. What gap is acceptable? Or are my chamber pressures excessive? Thanks. I hope I've explained my issue adequately.
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Not something there is a measurement, but something a good gunsmith should be able to determine with a glance, Cheers
@nealbushnell5556
@nealbushnell5556 Жыл бұрын
@@markandsamafterwork Thanks Mark.
@mertonsilliker3686
@mertonsilliker3686 2 жыл бұрын
Great info. Thanks
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers
@johnx9318
@johnx9318 2 жыл бұрын
Great information, thanks. Do you think that excessive neck tension might contribute to over-pressure?
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Pressure is always about everything, neck tension can contribute a little, but we are discussing reading, not causes, Cheers
@cornbreadburgess1950
@cornbreadburgess1950 2 жыл бұрын
Thanks for the sharing and enjoyed it,I was subscribed but then not, trying again.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Awesome, Cheers
@saccaed
@saccaed 2 жыл бұрын
I think you are right about pressure spikes causing inconsistent shot to shot reliability when case pressure is too high. I too will load sets of ammunition(10 rounds) when dealing with different powder or bullets, print groups on paper, scan the paper and digitally mark each shot from the different groups, then put all the coordinates into a spreadsheet for analysis. A repeat observation has been that vertical deviation tightens at a consistent rate as powder charge increases from too low then the deviation grows at a different and more exaggerated rate once powder charge is edging towards higher than ideal pressures. These are my observations from dialing in loadings for only a few different bullets for different rifle cartridges using different powders. Certainly not enough data for some kind of certainty, but the observations have repeated every time so far.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Glad you liked, Cheers
@walterluiz4694
@walterluiz4694 2 жыл бұрын
Very good informations. Thanks.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Walter, Cheers
@JohnRoberts71
@JohnRoberts71 2 жыл бұрын
Great content thanks for sharing
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers John
@Jerry-Parker
@Jerry-Parker 2 жыл бұрын
Excellent information ! 👍
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers Jerry
@russclifton2026
@russclifton2026 2 жыл бұрын
Great info.!
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Russ
@AusFeral23
@AusFeral23 2 жыл бұрын
Well done 👍
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers
@otiscarlwhite8745
@otiscarlwhite8745 2 жыл бұрын
Excellent info
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Thanks Otis, glad you liked, Cheers
@ralphgreenjr.2466
@ralphgreenjr.2466 10 ай бұрын
I have reloaded for 58 years. Do not assume that all published load data is safe for your particular weapon, especially max loads. I bought a new Henry Steel, .360 Buckhammer. I used Hornady load data, Accurate 1680 powder, 180 gr Speer bullets, WW cases, and CCI primers. I started 1 grain under max load. I had sticky extraction and flattened primers. PRESSURE! I ended 2 grains under max and the load was very accurate, no flattened primers, and smooth extraction.
@markandsamafterwork
@markandsamafterwork 10 ай бұрын
Thanks Ralph
@rvrski1
@rvrski1 2 жыл бұрын
Good vid but tip of the iceberg, I’d suggest everyone hand loading stick within component manufactures and SAAMI specs until they have not only a grasp of pressure signs but an understanding of pressure causes and effects. There are some solid tools and info available to assist in hand loading mixed components, wildcats and modified’s but you’ve got to know how to use and read them.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers
@freeandcriticalthinker4431
@freeandcriticalthinker4431 2 жыл бұрын
I think that basic concept stands without having to be restated into needless multiplicity
@rvrski1
@rvrski1 2 жыл бұрын
@@freeandcriticalthinker4431 Your lovely word smithed statement doesn’t align with the reality.
@KristofferEngstrom
@KristofferEngstrom Жыл бұрын
I use federal large rifle magnum on all my large rifle reloading. I know they are softer then other brands, but what I think is strange is that I get extreme flattening of the primer, even on the loading manuals lower charging weights. I fired an interval of loadweights yesterday, and all of them showed VERY flat primers after firing, but no other pressure signs what I could see. what should one think of that when even the lowest charging weight in the powder manufacturers manual, giving extreme flat primers? The caliber is 6,5x55 swedish mauser, with norma 130 grain golden target and norma 203-b powder with norma loading data.
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Not something to try to offer advice on with just an online comment, get the fired rounds to someone with hand loading experience, always lots in the many details that are there to be seen when in the hand, Cheers
@KristofferEngstrom
@KristofferEngstrom Жыл бұрын
@@markandsamafterwork seems to be a headspace issue. Theese cases were calibrated really hard, many years ago by an old gentleman. I measured them and if a shot case has an case shoulder measurement of lets say 0. The old calibrated ones was -0.35mm. New factory round about -0.25 and my newer correctly calibrated ones about -0.15 to -0.20 mm. Seems to be a problem when they have to much space to move around it seems.
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Cheers
@beargillium2369
@beargillium2369 2 жыл бұрын
New to the channel, enjoying your work! Curious where you are, New Zealand I'm guessing? Just guessing at your accent... Is there an about us video I can check out? Sorry for all the questions, I noticed you tend to respond to comments so figured I'd give it a shot 🤠
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Australia, and yes lots of videos, try the search feature on the channel to find videos, Cheers
@lylehutchins916
@lylehutchins916 11 ай бұрын
I have a 113-year-old 30-06 Springfield. I reload for it and my 30-40 Kraig. Keeping with loads from my '1960s Hornady bible. I will not overdose these with too much powder! While @ the range one day, I fired another round of 06 (Something hit me in the face). I Had a hard time lifting the bolt and finding out the primer was gone, and the primer pocket was a crater! Damn sure wasn't a squib load! The head of the brass was deformed also. No blood was found, so I loaded another round. It performed like it should. I think it could have been overloaded with too much 3031 propellant. Perhaps one got past me. ????
@markandsamafterwork
@markandsamafterwork 11 ай бұрын
Thanks Lyle
@LuisFernando-xh7zg
@LuisFernando-xh7zg 2 ай бұрын
Sabes que en los cánones de pistola y rifles . Tenemos un problema . Por eso se planchan los fulminantes . las trabas para resolver esto. Se tiene que contruir un nuevo cañon con ciertas modificación para tenér un correcto funcionamiento .Mí saludos amigo.
@markandsamafterwork
@markandsamafterwork 2 ай бұрын
Cheers
@anthonymeyer183
@anthonymeyer183 Жыл бұрын
Thanks
@markandsamafterwork
@markandsamafterwork Жыл бұрын
Cheers
@MamasFunkyMonkey
@MamasFunkyMonkey 2 жыл бұрын
after seeing Kentucky ballistics almost die from over pressured 50 cal round... I kno its extreme but it made me nervous about reloading which I'm still very interested in wether it's sub sonic rounds for my suppressors or custom prs loads
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers
@melechc7267
@melechc7267 2 жыл бұрын
Thanks Mate !
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers
@Mooseracks
@Mooseracks 4 ай бұрын
Case stretch....near the base...good or bad?
@markandsamafterwork
@markandsamafterwork 4 ай бұрын
Beginning of case head separation...
@fredfernald8016
@fredfernald8016 2 жыл бұрын
Flattened primers get my attention.
@markandsamafterwork
@markandsamafterwork 2 жыл бұрын
Cheers
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