Convert 30-06 brass to 8MM Mauser

When you cant find 8mm Mauser brass, make it.

[@teammosin9999]

Great video! I also make my own 8x57 cases. For one reason or another, I choose to make my cases from .270 Win cases. I follow pretty much the same process as you. I do not own a .270, but I do own a .30-06. I make a bunch of 8mm brass this way a couple times a year and it works great. I really like how you emphasize safety at all times!Thanks again!!

[@jamesbracken4618]

RCBS makes an 8x57 file trim die where you push the .30-06 case in the excess sticks out the top of the die and you cut it off with a hack saw and boom it pushes the shoulder back and you have an 8x57 case ready to be annealed.

[@Courier-Six]

I was lucky about 4 or 5 yeara ago in my college days. Had disposable income from my GI bill, a job that paid the bills, and a local gun shop that sold 8MM Mauser ammo from PPU & S&B for fifty cents a round. I still have close to 500 rounds of brass that have been fired once and can be reloaded

[@marklandwehr7604]

Other cases have the same case base

[@mikebinz8851]

The downspout propane bottle holders are pure genius! What did I do before You Tube....

[@Kysushanz]

Only concern I have about this is the neck size you end up with. I have a 25/08 [25 cal .308Win case]. I have a selection of brass including Sniper grade IVI and Lapua. I worked up loads from 87gn to 117 gn projectiles. The projectiles under 105gn were all loaded in the IVI brass but the 117gn was loaded in Lapua brass. When firing the 117gn I got serious over-pressure issues with primer pocket, escaping gas etc. I went all over my process many times, measured and checked everything many times and still could not find the issue. Finally, I took some micrometre measurements of the neck external and internal dimensions. What I found was the Lapua brass had a thicker neck and so was really binding in the chamber causing the over-pressure. A similar situation could occur here because as you shift the neck down the 30-06 cartridge, you are going to find the case wall thickens.

[@plow-boyengineering7053]

I have not had any pressure issues with this so far. I also do not run hot loads either. I have been doing it this way for around 15 years. Now the brass I use is once fired Winchester brass from a friend of mine. He saves the brass for me. That is definitely a point that I will keep in mind. I have certainly seen differences in the web and wall thicknesses of different makes of brass over the years.

[@neilbuckley6293]

Yes I know a fellow that only uses Winchester brass for that reason in other loads like in his 25-06 and his 280.

[@michaelpierson7256]

Ww2 reinacters here leave a lot of blank shells & stuff. Since their already made i take their fired shells & trim the crimped mouths, aneal & fireform on 8mm from 270s, 280s & 30-06 brass. 30carb from 223s, 8mm kurz from 308s. I dont need the kurs but cut, bag & tag them just the same, i dont know what cal il get next as i load for about 65 dif. Cals. Up to 45mm cannon Among other things i even found an orig MP40 mag still full of blanks😊

[@MegaBait1616]

Works like a charm....... I always mark the bottom of the case with a sharpie.. "8mm" .... be well.

[@jmartin9059]

*A "BODY DIE" ... or "FORM AND TRIM DIE" .... DOES NOT HAVE THE DECAPPER & IS HOLLOW , to allow air to escape. Those are the cat's meow for reforming or wildcatting brass ... when the shoulder must be set back. "BODY DIE" is a REDDING brand name for this tool. RCBS call it a FORM AND TRIM. Other brands might call it some other name. Body or Form and Trim die... You might like it. Some versions of this allow a properly adjusted die to be at just the right height to file off the excess brass....while the brass is in the die... and whammo it is trimmed to correct length.... No saw or special trimmer tools needed. Then deburr and finish loading process. TECH TIP for filing brass down in the die and press.... BRASS FILINGS can become your enemy ... especially if you allow them into the hollow of your die or onto the press ram... YOU MIGHT want an air compressor and a blow gun handy to blow away the brass shavings.... This operation is possibly BEST done in a Machinists room, Garage, on a covered patio, or under a pavilion.*

[@beregruth]

Thank you for the video, I’ve been hand loading for 15 years and I haven’t been able to find 8mm. I will definitely do this. Thank you again.

[@lawrenwimberly7311]

I have used crisco shortening for 35 years as case lube... never stuck a case

[@grzegorzbrzeczyszykiewic3338]

this is the same reason i never eat shortening, it will stay in you're digestion for 35 years.

[@lawrenwimberly7311]

@@grzegorzbrzeczyszykiewic3338 good choice... it was created to be lamp oil, not food

[@Mr257weatherby]

Wouldn't it help to anneal first before forming or does that create another issue?

[@plow-boyengineering7053]

If you mean before running it through the die, maybe. Never did that. if you did, you would be cutting off most of the annealed brass after you trimmed it to length. If you annealed too much trying to get the new (not yet formed) neck and shoulder, you might have to trash it. When I do it the way that I do, I know that I am getting the annealing in the right area every time. That is just me though. I was just showcasing the process that works for me.

[@Yettiattack]

Paint the rims

[@Hunterslife315]

Really great video my friend. Glad I found or saw this video

[@whiqeddik7615]

Awesome work brother, and thanks for sharing your badass experience

[@iliap1217]

Nothing fancy, just good and proper and it works. Thanks for showing your setup and process.

[@plow-boyengineering7053]

Thanks for watching. These are just things that I have learned over the years. I didn't invent the process, just learned from an old timer. I also like the K>I>S>S method...Keep It Simple Stupid.

[@browngreen933]

Kar.98k rifles weren't made at Spandau in 1918. Maybe a Kar.98az or Gew.98.

[@plow-boyengineering7053]

I will look into that. This is a war bring back from my grandfather. It definitely is a 1918. all German markings and Spandau stamped. the bore is definitely .323" not the older .318". a proof mark reference source would help a lot.

[@andrewsteele7663]

Thanks, really interesting video. I have a 8mm Mauser and I have necked up 7x57 brass before with fair results. I had never thought to use 30-06. And I am a fan of using a bowel of water for the annealed cases. I was told by an "expert" that you don't need to do that, but I disagree. Now what is Cream of Wheat and what is that compared to Grits. We have none of that here in Australia. I have really enjoyed the video. I will watch all manner of reloading videos even though I have been reloading for 30 years. And I have subscribed, cheers

[@plow-boyengineering7053]

LOL. Grits are a medium ground corn food that is boiled till soft and served with various ingredients added in. Redeye gravy, butter, bacon, eggs, cheese, or shrimp. Cream of wheat is a similar product made from wheat. Grits are a deep south United States food while Cream of wheat is a northern thing. I use them dry as a case filler so I can fire form my brass. Not sure what, in your region, would be a suitable equivalent. Nice to speak to people in other countries. Great to meet you.

[@andrewsteele7663]

@@plow-boyengineering7053 Thanks for letting me know what Grits are. I can tell you we don't have anything as nasty sounding down here in Australia expect my ex wife's Couscous, and that was nasty. Lucky I am not married to her anymore. In regards to fireforming I have used some cotton wool before with fairly good results. Thanks, and I enjoyed the content.

[@johnh1001]

Good Day Andrew from Toronto Canada : Nice to hear from you . I also use hot water in the annealing process . I put about one hundred 30 06 Springfield spent empty brass into a cast iron pot . These 30 06 have been neatly cut to 8 mm Mauser neck length and deburred . I use a mercury glass thermometer and dump the room temp shells into the water that's preheated to about 200 degrees F . I leave them to soak down to about 165 degrees F , then dump them out and blow them dry with compressed air .

[@SALTYCOMBATDIVER-ExInstructor]

Tell me about it. Been reloading even longer than you. I use a Dillon trimmer on a Dillon 1050 and a Doug Giraud annealer but still love a basic reloading video.

[@جلالدارابی-ب3ب]

چه صدای قشنگی..وکامل

[@normangiven6436]

Why not just get the RCBS 8x57 trim die? You have to cut down the 30-06 brass anyway. You also miss the neck trim and turning steps because the neck is too thick from the should becoming the new neck.

[@neilbuckley6293]

I have a trophy mauser that has been sporterized that I inherited from my paw-in-law. It’s a shooter. I have the dies for it great information. I already neck down 06 for 270. Thanks for a great video. I hate to waste grits being a proud son of the stars and bars but to fire form I may have to make an exception.😂

[@tballstaedt7807]

I am completely impressed with your resourcefulness.

[@plow-boyengineering7053]

thanks.

[@rogerdereske5923]

See below... The only drawback to this is case necks should be reamed or turned to proper specs to avoid excess pressure!

[@RickNethery]

Good job, I do a similar operation but use a RCBS bushing to move the shoulder and I trim the leingth before running them through the die. Your method works well too through Sir.

[@dennisowen3717]

Great Video. I've been a Ballistician for over 53+ years. I was wondering why you havn't converted your 8mm over to an 8mm/06. I did that to an 8mm Chech made Mauser 98 with a 29 inch Barrel. When I re-chambered it I cut the barrel down to 27.6 inches and re-crowned it. Not only did it cure the problem of not being able to get 8mm ammo and Brass but the accuracy and velocity was much much higher and better. 30-06 brass is still cheap and plentiful and the bullets were too. But now 8mm Bullets are drying up. It just seems like a lot more work to make 8mm Mauser Brass than it is to convert over to an 8mm/06. But with the current way things are going it's getting more difficult to get a lot of the re-loading stuff we need.

[@plow-boyengineering7053]

This rifle was a WW2 bring back by my grandfather. 504th Parachute Infantry. I will never change a thing on this rifle.

[@SALTYCOMBATDIVER-ExInstructor]

Old school is lanolin (or you can use it in alcohol to make a spray). Apart from that, great video.

[@Hunterslife315]

Ha. That shirts bullshit bc you have great ol ideas for reloading and in takes awhile to be able to be a real reload master basically lol

[@kieranh2005]

Why anneal it after forming rather than before forming?

[@larrybulthouse455]

What for? FIREFORM YOUR EAR

[@whiqeddik7615]

Hope you and your family are staying well these days as well bro🍻

[@plow-boyengineering7053]

We are doing well. thanks a bunch and stay safe.

[@whiqeddik7615]

@@plow-boyengineering7053 grand man🤟

[@codythompson8456]

Lawrence county Alabama check in!

[@joesphfauver-kingsland8713]

Thanks for this video 😁. I do have a question ❓ for you 🧐 now when I do this what is your recommendation for load size for I don't hurt my Mosser?

[@plow-boyengineering7053]

I would rather not suggest a load. That is something that you have to figure out yourself. Every rifle is different. Just have to start low and work up looking for pressure signs. Usually, the sweet spot is somewhere in the middle anyway.

[@jamesstfelix2408]

Why just why ? Only a fool would want to do this....make some arisaka ammo. At least

[@plow-boyengineering7053]

Why would I try to make ammo for a firearm that I do not, nor want to own?

[@jamescopeland8155]

I would caution on doing this, this is extremely dangerous

[@plow-boyengineering7053]

This is only as dangerous as you choose to make it. Wildcatters have been doing this for decades on countless custom rounds. Read P.O. Ackley's book. Then re-think your opinion.

[@Woodyperckerhead-ni3ti]

The question I have I got a bunch of old 8 mm loaded rounds will the bullets interchange with a 3006 I didn’t use a mic on them I’m Courious

[@plow-boyengineering7053]

NOOOOO. A 30-06 shoots a .308" bullet. An 8mm shoots a .323" bullet.

[@Woodyperckerhead-ni3ti]

@@plow-boyengineering7053 thanks for information

[@jmartin9059]

*YOU COULD ""ZIP SAW FIRST"" to approximate length ... then reform... and, do the final trim. That would allow for less brass being worked in the press... SLIGHTLY REDUCING STRESS ON PRESS.... WARMING UP THE BRASS makes it easier to form... HOW HOT ? FIRST, for the sake of uniformity of results... UNIFORM IN TEMPERATURE.. & IF IT WOULD BURN YOUR FINGERS... THAT WOULD BE TOO HOT.*

[@jamesvatter5729]

I'd like to figure out that "epoxy jig" you made for the chop saw. Your improvised annealing set up is genius! Maybe I didn't catch it, did you use a standard shellholder? I've read where some folks grind their "conversion shellholder" down to ensure a full resize of the case.

[@plow-boyengineering7053]

For the epoxy jig I just made a large cigar of pig putty. Then, with silicon spray as a release agent, I pressed the shell down into it making sure that the pig putty filled the rim gap completely. when it cured, I popped the shell out and cleaned it up with a Dremel tool. I did this on a dead flat surface so that it would be square in the little chop saw. I did not modify my shell holder for the resizing. It is the same shell holder that I reload with.

[@jamesvatter5729]

Thanks

[@shawncampbell3191]

Great video, thank ya!!

[@SA-lr1sf]

Good work. Thanks

[@emmanuelfernandez1238]

If you weren’t filming, how long would it take you to make say about 20 rounds like this ?

[@plow-boyengineering7053]

probably an hour if I was being real particular

[@plow-boyengineering7053]

Also sorry for taking 2 months to reply. I just saw the question.

[@emmanuelfernandez1238]

@@plow-boyengineering7053 I forgot my own question hahaha I had to re read

[@karlwashburn43]

Please think about changing your name to old school plow-boy engineering

[@donembrey3956]

Great info.

[@jefferythayer6103]

I picked up two boxes of 8mm, I thought was going to fit my mauser-1944 issue, at gun show. Turned out, the 8x57 S - caliber bore 7,89 mm, groove 8,20 mm , will not work in my later issue rifle. Seller & Bellot 196 grs.

[@plow-boyengineering7053]

Early 8mm Mausers had a bore diameter of ..318". Sometime prior to WW2 that diameter was increased to .323". This confusion was directly related to the accuracy problems that many post war sportsman ran into. That is why the 8mm was never held in high regard here in the USA.

[@rogerdereske5923]

As a working gunsmith for almost 40 years I have learned that most calibers can be formed from 30-06 brass, from 35 Whelan to 243 and several wildcat calibers included. The only draw b

[@usualsuspect5173]

So the rims match up?

[@kieranh2005]

All based off the granddaddy of most modern cartridges, the 7x57 Mauser.

[@eddiec.6915]

Why in the reloading books it says 3.250 over all length and when you measure a8 mm it is way shorter

[@plow-boyengineering7053]

The C.O.A.L. is the SAAMI standard. It is a measurement guideline that serves a few purposes. First, it gives a guideline for standard chamber dimensions. Second, it gives a measurement that should fit most if not all magazines. Normally the closer to the lands and grooves that you seat a bullet, the better the accuracy. This means that most hand loaded precision rounds will be longer than the SAAMI standard. This gives the round less "jump" to the riffling. All of my other rifles like this loading. I keep them at the maximum allowed for the magazines. My Mauser, however, dose not like this reduced jump for reasons that I cannot explain. I also only shoot 170 gr Speer Hot Core pills in this rifle. The Hot Cores are short and stumpy. I actually get better accuracy with a longer jump. Again, I have no idea why. Since the bullet has such a short ogive, I can safely seat them deeper. The heel is not seated past the bottom of the neck and therefore does not decrease case volume. This in turn does not cause any pressure spike. I also never load any of my ammunition "hot". I find that I get the best accuracy in the just above the median velocity loads. I chronograph all my loads during work up and from batch to batch. The SAAMI specs are guidelines to keep your loads safe and feeding reliable. When you get into precision loading and have a lot of experience under your belt, you have a better understanding of what is actually happening inside the chamber. I have been at this for 34 years and there is 2 constants.....1-you learn new stuff every day and 2-there are absolutely no stupid questions. I hope this was helpful.

[@beryang8670]

We can some

[@stevehuntley3089]

Isn't the 8mm cheaper or did it just used to be?

[@plow-boyengineering7053]

Are you talking about ammo or components?

[@jmartin9059]

*OR, FOR LESS STRESS ON THE PRESS... SIMPLY NECK UP to 8mm-06 wildcat round. IF you decide that 8 Mausers CORROSIVE ammo is not for you... 8mm-06 wildcat 'rechambered' factory barrel would eliminate any headspace problems and allow for ""much easier conversion"" of 30-06 brass 'at roughly full length' with very little trimming. AND, the shoulder of the 30-06 brass does not need pushing back.... The neck part of the brass is still the neck. Just slightly larger diameter neck, now. 8mm -06 with any of the right powders in the right amount can be a little more powerful than 8x57. 8mm-06 is a ONE WAY conversion... There will be no going back to shooting CORROSIVE surplus 8x57 IS/JS or 7.92x57 IS ammo. FOR 8mm-06 200 & 220 bullets are a nifty little slayer for Deer, Elk, Moose and small to midsize bears.*

[@plow-boyengineering7053]

I do not shoot any military rounds in my Mauser.

[@samiam619]

But who wants to buy a 8mm-06 rifle?

[@samiam619]

@@plow-boyengineering7053I have several hundred rounds of that HOT Turk stuff, headstamp says 1938. Would you recommend dumping the powder and loading fresh and milder powder?

[@samiam619]

@@plow-boyengineering7053FYI, I have a new to me Gew 98 that I haven’t shot yet. Also a k98k and several east European 8mm rifles

[@plow-boyengineering7053]

The entire point of me doing this is to preserve the K98K than my grandfather brought back from the Battle of the Bulge. I see your point but I would never alter this rifle in any way.

[@normanlesley1867]

.308W will chamber in A 270W.

[@plow-boyengineering7053]

I have no experience with any 270/7mm variant.

[@plow-boyengineering7053]

the .308 is about .030" larger than the .270.

[@normanlesley1867]

@@plow-boyengineering7053 Yes and the result is spectacular I am told.

[@unclecordite9208]

Do you need to reduce your powder charge with reformed ‘06 compared to 8x57mm? Old Lyman manual (circa 1957) suggests reducing max charge by 2 gr with ‘06 cases…

[@plow-boyengineering7053]

I never load to max. I have found that all of my rifles prefer middle of the road charges. I get the most accurate loads in the midrange.

[@ihatenewyork]

Damn, I wish I lived in an area where I can practice what you're doing. It looks amazingly calming and I'm not gonna lie, the accent caught me as well 🤣

[@plow-boyengineering7053]

Yall would love it around here