I pushed my 270 WSM to the extremes!

  Рет қаралды 15,435

Hopeful Ballistics

Hopeful Ballistics

Күн бұрын

Пікірлер: 147
@Muschka01
@Muschka01 11 ай бұрын
I had a custom barrel made for my 270WSM 28" barrel with a 1:7 twist. I also had the free bore extended so I could have the bullets pushed out so that the bullet did not interfere with the powder charge. It was a tac driver with the 175Gr pill. Nice video bud!
@hopefulballistics
@hopefulballistics 11 ай бұрын
Thanks! I appreciate it
@Lucysdad66
@Lucysdad66 11 ай бұрын
Wow 28" did that come with a stand for the end of the barrel
@timbjork2098
@timbjork2098 10 ай бұрын
did you put it in a longer action or are you shooting one at a time.
@WesternReloader
@WesternReloader 5 ай бұрын
What’s your COAL with a 175 STGK? I’m running a browning 26” x bolt max lr in 6.8, my max mag length and 10 thou off the lands is 2.987”…
@edtillotson
@edtillotson 5 ай бұрын
I'm glad to see more with the 270 wsm .
@hopefulballistics
@hopefulballistics 5 ай бұрын
More to come
@aaronwilcox6417
@aaronwilcox6417 11 ай бұрын
Excellent. Reloading Weatherby did 165gr in 270win with good results. That 90gr Barnes would be a whitetail killing tool. Fast and light recoil
@hopefulballistics
@hopefulballistics 11 ай бұрын
Thanks!
@Puggernaught24
@Puggernaught24 11 ай бұрын
Might have to try that, what’s your twist and speeds u We’e getting?
@gunman-6646
@gunman-6646 11 ай бұрын
Good video bro., I enjoyed watching your experiment!
@hopefulballistics
@hopefulballistics 11 ай бұрын
Thanks for watching!
@rickhelms6533
@rickhelms6533 11 ай бұрын
95 gr TTSX out of mine. RL 17 gives McGowen 24” barrel 3950 fps. Great yote load. Love it for deer, (never recovered a Barnes yet). Moose would be interesting to see if the 95 gr could be recovered?
@hopefulballistics
@hopefulballistics 11 ай бұрын
Sweet! R17 huh?
@CandelarioSanchez-ji1qq
@CandelarioSanchez-ji1qq 11 ай бұрын
Thanks for your input I don’t know how to reload but really like your videos I to love my 270 WSM
@hopefulballistics
@hopefulballistics 11 ай бұрын
I appreciate that, thanks!
@MattW-wr7th
@MattW-wr7th 6 ай бұрын
Really interesting vid. I tried stabilizing the 170 Berger out of my 270 wsm and failed. Admittedly I was pushing them a lot faster than your test vid. I noticed your velocities were quite low and if you’ve used similar loads for the other heavy for cal projectiles that you successfully stabilized this would have contributed to the success. The SF considers the distance between center of gravity and center of pressure. The distance between these two directly affects the stability requirements of each projectile. Velocity adds to this also. The more velocity, the more rotation required. Other thing that is worth considering would be how the BC would be effected down range at the same velocities with different spin rates considering how “yaw” can effect a bullet. Going down a rabbit hole now. Great vid, we can all learn from content like this.
@hopefulballistics
@hopefulballistics 6 ай бұрын
Great comment! Thanks for watching!
@vicjones1179
@vicjones1179 11 ай бұрын
Great video as I've never seen unstabilized bullet impacts on paper, awesome
@hopefulballistics
@hopefulballistics 11 ай бұрын
I appreciate it.
@montanamusings
@montanamusings 11 ай бұрын
Long live the 6.8 Western!!!
@davidmackee8575
@davidmackee8575 11 ай бұрын
Great video I enjoyed it look forward to seeing more 👍👍
@hopefulballistics
@hopefulballistics 11 ай бұрын
Thank you!
@Blong243
@Blong243 11 ай бұрын
There you go, now we know. Keep up the good work.
@hopefulballistics
@hopefulballistics 11 ай бұрын
I appreciate it.
@Stu.E.
@Stu.E. 11 ай бұрын
Great job, great to know ! I still need to reload the 162 grain copper impacts pulled from my 6.8 western in my 270 Winchester, to see if I can get them to stabilize at 4500 ft elevation.
@hopefulballistics
@hopefulballistics 11 ай бұрын
Let me know how it goes. I’m pretty sure it will stabilize. Thanks!
@Stu.E.
@Stu.E. 11 ай бұрын
almost forgot , I will also try the 170 grain Winchester power points from pulled 6.8 western ammo in my 1-10 twist 270 Win. Curious if the lower BC will help or hurt it…. been busy hunting and doing holiday stuff
@72codeman
@72codeman 11 ай бұрын
I’ve got a 270 win 7.5 twist. I haven’t tried the tipped game king yet, I’ve been shooting the 170 Berger
@hopefulballistics
@hopefulballistics 11 ай бұрын
You shouldn’t have any trouble…in theory.
@72codeman
@72codeman 11 ай бұрын
@@hopefulballistics I’ve shot it out to 1000, very accurate.
@claw1952
@claw1952 11 ай бұрын
My 270 wsm shoots the 140 grain nosler partitions best. 3/8" group and less if I do my part.
@hopefulballistics
@hopefulballistics 11 ай бұрын
Nice!
@johnkillian5232
@johnkillian5232 6 ай бұрын
Recently, i did a powder and bullet test. I used federal brass, cci primers, Nosler 170gr bullet, and v N-555 powder. This was loaded in 270 win, 22" barrel, 1-10 twist. I had great results, at 100 yards it was .75" group, and chrono'd 2600 fps.
@hopefulballistics
@hopefulballistics 6 ай бұрын
What elevation did you shoot at?
@NuManXplore
@NuManXplore 10 ай бұрын
Neat test, thanks for doing this. .270 wsm seems like a great round, but definitely need to be a reloader since ammo is so expensive.
@hopefulballistics
@hopefulballistics 10 ай бұрын
Yes that’s true for the most part
@Kram2462
@Kram2462 4 ай бұрын
You should try a Barnes 155 lrx bt and see if it stabilizes! Barnes claims in needs a 1:8 also.
@hopefulballistics
@hopefulballistics 4 ай бұрын
@@Kram2462 I know someone who did with a 270 Winchester at 4000 fps, and it did not stabilize.
@Kram2462
@Kram2462 4 ай бұрын
@@hopefulballistics Bummer! Was looking at a 270 wsm for my wife to hunt here in Alaska. The 155 gr lrx looked like a good bullet for here.
@geothunder1971
@geothunder1971 11 ай бұрын
I've used 110gr 270wsm for Whitetail's it's a very effective load! I will be following your footsteps and loading the 165gr for a test! I feel like rubbing Winchesters nose in this one! They can keep that 6.8 western
@hopefulballistics
@hopefulballistics 11 ай бұрын
Let me know your results
@jwdundon
@jwdundon 7 ай бұрын
I have a 270 WSM in a Browning A bolt medallion. I run a Nosler partition imr4350 Max Nosler load data loads. I get sub MOA accuracy. My primers are flat but my brass doesn't appear to stretch much and my bolt cycles smooth and gentle. I'm done hunting for a load for it.... I have 140 150 acuubond to partitions but I don't see a need to even work a load up when I get this group with the 130. ( I DO have bigger guns if I want more power).
@hopefulballistics
@hopefulballistics 7 ай бұрын
Awesome
@trevorkolmatycki4042
@trevorkolmatycki4042 11 ай бұрын
Bullet gyroscopic stability can be predicted with mathematics. Math is cheaper than bullets and powder. The gyroscopic stability formulas take into consideration the bullet velocity and the air density due to altitude, temperature, and humidity. The accurate formulas require the transverse and rotational moments of inertia of the bullet… but unfortunately the bullet manufacturers do not publish this basic geometric information so we are left with only simplified approximate formulas like the Miller twist rate formula. The miller formula assumes the entire bullet is homogeneous. As a result, Miller under states the stability of plastic tipped bullets. Fortunately, there is a modified Miller formula available that attempts to account for the stabilizing effects of the plastic tip. It would be very interesting to run the modified miller numbers against your test results to see what stability factors this formula predicts. A stability factor of 1.0 predicts the onset of tumbling. It is wise to try to keep the gyroscopic stability above 1.2 The folks that derived the modified miller formula were able to demonstrate with limited testing that below 1.2 the bullet can begin to experience increased drag due to more wobble in the precession cycles. This basically causes your ballistic coefficient to become variable depending on MV and air density. The folks at Applied Ballistics and at Berger bullets have suggested that it is good practice to maintain a stability factor above 1.5 for long range shooting applications especially if you pass through the transonic zone and go subsonic. The published twist rate requirements on bullet boxes are conservative in an attempt to produce stability in worst case conditions such as low temperatures at sea level. If you are running long bullets at twist rates below manufacturer recommended it is wise to be mindful that you can experience stability at higher temps and higher altitudes but then lose stability at lower temps and lower altitudes. And if your bullet is stable but getting close to the limit you can experience variable amounts of increased drag which can make drops difficult to predict with your ballistic calculator because your BC is changing with changes in altitude and/or temperature. Cheers!
@hopefulballistics
@hopefulballistics 11 ай бұрын
Well said. Thanks for your input.
@ralphyoung9296
@ralphyoung9296 9 ай бұрын
Great video.!! Thanks. I have both the 270wsm and the 6.8 Western, both NIB. I was not planning on going any higher in bullet weight than 165gr in my 6.8 western. Now it seems like I wasted my money buying it because I can shoot the 165gr from my 270wsm. Actually, the 6.8 wasn't a waste of money.. I'll admit, I like to buy guns.
@hopefulballistics
@hopefulballistics 9 ай бұрын
I understand, lol
@lorenweatherby6520
@lorenweatherby6520 7 ай бұрын
I love my 270wsm with 1-8 twist. Pushing 170g Berger Elite at 3200 fps.
@TimLinquist-n9w
@TimLinquist-n9w 19 күн бұрын
whose barrel and what length?
@thomasdaum1927
@thomasdaum1927 5 ай бұрын
In my 270 WBY with a Barnes MPG ( 85 gr ) I a shooting 79 gr of H 450 . Am getting 3/4 in groups . I haven’t chronographed it yet but will do so soon !
@hopefulballistics
@hopefulballistics 5 ай бұрын
I’d like to know the velocity when you get it.
@ironDsteele
@ironDsteele 3 ай бұрын
I haven't seen 270 WSM brass for sale in over 3 years now.
@hopefulballistics
@hopefulballistics 3 ай бұрын
@@ironDsteele it’s hard to find unfortunately
@andrefrank8270
@andrefrank8270 3 ай бұрын
Always fun to have a 3700 fps bullet very noticeable at 250 yds plus. Thsnx
@hopefulballistics
@hopefulballistics 3 ай бұрын
@@andrefrank8270 thanks for watching
@shanejarratt9800
@shanejarratt9800 11 ай бұрын
I night be interested in those gamekings. I haven't been able to find factory loadings for my 6.8w with the gamekings and am going to start dabbling in reloading this year
@eduardoolaechea
@eduardoolaechea 11 ай бұрын
The beauty of the 270wsm is in those extra 200 fps over the 270 win with the 130 - 150 grain bullets. Wouldn't trade speed for bc. in a hunting cartridge. But stabilizing those 165 grain bullets add versatility to the cartrdige. Would be interesting testing those high bc bullets on a 270 winchester too.
@hopefulballistics
@hopefulballistics 11 ай бұрын
Absolutely
@WayneGent-t2l
@WayneGent-t2l 8 ай бұрын
Love my tikka 270 win would like to try the heavier bullets like you did awesome video
@hopefulballistics
@hopefulballistics 8 ай бұрын
Thank you, I appreciate it!
@timbjork2098
@timbjork2098 10 ай бұрын
I think I saw the new browning rifle has a 270win with 1-8 twist. be interesting to test with these heavy pills.
@hopefulballistics
@hopefulballistics 10 ай бұрын
Definitely
@steverutkowski8141
@steverutkowski8141 8 ай бұрын
Makes the case for our Friends at Hornady for the 6.8 PRC. Or fast twist 270s.
@hopefulballistics
@hopefulballistics 8 ай бұрын
Or 6.8 Western
@steverutkowski8141
@steverutkowski8141 8 ай бұрын
@@hopefulballistics - I agree. I don’t understand the whole corporate drama here. Meaning why I said 6.8 PRC as their own. Browning and Winchester and Seekins seem to be making fast twist 270s. I’ve taken deer and elk with the boring 06 with a 180 Barnes and the 270 Nosler 150 Partition. Both around 200 yards and both very dead. Some will say so what but I want my next rifle to be special per say. The 6.8 is the front runner but the lack of acceptance and bullet availability is giving me major pause…….
@sibongileryan6747
@sibongileryan6747 11 ай бұрын
That's nice rifle I budget to pick up one in 243 even though I'm not the reloader I'm still enjoying your channel
@hopefulballistics
@hopefulballistics 11 ай бұрын
Thanks for watching.
@nmelkhunter1
@nmelkhunter1 7 ай бұрын
This certainly was a fun video. What grain bullet do you normally hunt with in 270 WSM?
@hopefulballistics
@hopefulballistics 7 ай бұрын
130 to 165
@timkraft4583
@timkraft4583 5 ай бұрын
Nice muzzle flash.
@hopefulballistics
@hopefulballistics 5 ай бұрын
I thought that was cool
@jacobmullins3644
@jacobmullins3644 11 ай бұрын
Maybe trying different powders might help
@frankgulla8782
@frankgulla8782 9 ай бұрын
My .270 win will stabilize those 175gr bullets! It's an x-bolt westerner with a 1-7.5" twist 24" barrel. Good test, want to try out some 110gr ttsx bullets, Barnes says 3,500 fps but that sounds hopeful, thanks.
@hopefulballistics
@hopefulballistics 9 ай бұрын
What elevation do you shoot at?
@Lucysdad66
@Lucysdad66 11 ай бұрын
I tried heavy bullets in my 22-250 once and I couldn't hit the side of a barn with them my pet load for my 270wsm is 65grs RL19 behind 130gr barnes does under a inch at 200 yards
@hopefulballistics
@hopefulballistics 11 ай бұрын
Sweet
@BarryAnderson-j6l
@BarryAnderson-j6l 2 ай бұрын
What's good brand get in 270 wsm
@shanerhodes925
@shanerhodes925 11 ай бұрын
I used to use 4831 IMR in my wsm Browning a bolt 2. It shot really well not sure.of velocity. At that time I didn't have chromo to see but 4350. Wasn't anywhere near as good shooting as 4831. Hands down better. But with 140-150gr bullets. Lol
@hopefulballistics
@hopefulballistics 11 ай бұрын
I appreciate the comment
@Chris_24
@Chris_24 11 ай бұрын
What cartridges are these heavy .277 bullets made for….6.8 Western?
@zebacake4683
@zebacake4683 11 ай бұрын
usually, Winchester and browning now have fast twist 270 wins
@hopefulballistics
@hopefulballistics 11 ай бұрын
6.8 Western or 27 Nosler. Or a 1 in 8 twist 6.8mm caliber.
@amym828
@amym828 11 ай бұрын
The analogy with a tire being out of balance only works when talking about bullets that are not concentric. It's not necessarily the cartridge that determines stability, but more so the barrel with its twist rate. Velocity will help some, but not as dramatic as rifling twist.
@hopefulballistics
@hopefulballistics 11 ай бұрын
I appreciate the comment. 270 WSM is always 1 in 10 twist.
@bobamburgey966
@bobamburgey966 9 ай бұрын
I found my 270WSM would not stabilize the 165 Nosler LRACB. My 6.8 Western likes the 175 Gamekings
@hopefulballistics
@hopefulballistics 9 ай бұрын
What elevation was you shooting at?
@steviebby
@steviebby 10 ай бұрын
Them loads were ridiculously light , and it not true that speed will make it worse, using the tire analogy yes it gets worse but then if you go fast enough it will suddenly go away and get better
@hopefulballistics
@hopefulballistics 10 ай бұрын
Not according to the ballisticians at Hornady.
@steviebby
@steviebby 10 ай бұрын
Type in the green hill formula any bullet length that stables at a given speed , then half the speed in the formula and it will say unstable low velocity, the velocity affects the rpm in a major way that’s why it’s a requirement for the green hill formula why else would you put it in??? , I’m not saying that a 1in 10 will stabilise that projectile , but at least give it a chance by driving it at realistic 270wsm speeds 2850+ would be fair I drive the 170grain bergers at 3140 but I have a 28” 1in 8” twist
@hopefulballistics
@hopefulballistics 10 ай бұрын
@@steviebby I’m no expert, but I know the velocity will decrease much faster than RPMs. As it is slowing down at distance the gyroscopic stability remains. Once it stabilizes…it’s stable. Of course until the very end. So if it can’t reach stability…. faster velocity wouldn’t help but make it worse.
@steviebby
@steviebby 10 ай бұрын
Speed adds to rpm of given twist rate drive given projectile fast enough it will stabilise, that’s how it works it certainly doesn’t work backwards and make it worse like you are suggesting
@hopefulballistics
@hopefulballistics 10 ай бұрын
@@steviebby I’m not 100% sure I’m right, but I believe I am. We’ll have to agree to disagree on this one.
@ryanburchfiel7929
@ryanburchfiel7929 11 ай бұрын
Was curious what twist rate your barrel is?
@hopefulballistics
@hopefulballistics 11 ай бұрын
1 in 10
@davidemontini8298
@davidemontini8298 9 ай бұрын
You will see a difference with temperature insensitive powders …I switched all powders and have way better results cheers and happy shooting
@hopefulballistics
@hopefulballistics 9 ай бұрын
Thank you
@TomL3grandsons
@TomL3grandsons 11 ай бұрын
Awesome video! I think you found the limit lol. I’ve been so curious about this.
@hopefulballistics
@hopefulballistics 11 ай бұрын
Thanks! Yep that’s the limit.
@craigholland2274
@craigholland2274 8 ай бұрын
Great round.. to bad you cant get brass for it.
@hopefulballistics
@hopefulballistics 8 ай бұрын
I’ve got some Norma brass finally.
@charlesmay3673
@charlesmay3673 Ай бұрын
Norma brass is currently available from several sources. Expensive, but available (around $2 per case 😮)
@mikedesensi6391
@mikedesensi6391 11 ай бұрын
whats the twist rate in your rifle.................. that has a major factor in stablity
@hopefulballistics
@hopefulballistics 11 ай бұрын
1 in 10
@brandonjett16
@brandonjett16 11 ай бұрын
Different speeds Different twist rates and grain bullets
@JamesM-l5g
@JamesM-l5g 9 ай бұрын
Almost sounds like in the first group, one cows got hit…..
@hopefulballistics
@hopefulballistics 9 ай бұрын
Definitely not, lol
@waynemayle865
@waynemayle865 11 ай бұрын
Experimental pew pew scientists that's who we are great video
@hopefulballistics
@hopefulballistics 11 ай бұрын
Thanks
@jerrymartin5100
@jerrymartin5100 11 ай бұрын
Odd to me everyone talks about twist rate, and how unstable bullets become, not a soul says a word about 30-06, and it shoots 110gr to 220 gr without a problem with a 1-10 twist.
@hopefulballistics
@hopefulballistics 11 ай бұрын
We’ve known it could do that for a century. It’s definitely cool, just not new information.
@jerrymartin5100
@jerrymartin5100 11 ай бұрын
@@hopefulballistics so why is it different for the 30-06 and not other cartridges
@hopefulballistics
@hopefulballistics 11 ай бұрын
@@jerrymartin5100 1 in 10 twist in 30 cal is just not the same thing as in other calibers as far as shooting heavy bullets.
@montanamusings
@montanamusings 11 ай бұрын
If I were you, I would sell the 270 WSM and buy a 6.8 Western. We must save the 6.8 Western!😅
@hopefulballistics
@hopefulballistics 11 ай бұрын
lol, it’s tempting
@charlesmay3673
@charlesmay3673 Ай бұрын
Hmmm, that is what I said about the .270WSM a few years ago…😢
@SpudOutdoors
@SpudOutdoors 11 ай бұрын
Why such low speeds
@hopefulballistics
@hopefulballistics 11 ай бұрын
Haven’t put in the work to develop it. Different powder might have been better
@diggernash1
@diggernash1 11 ай бұрын
Bullet length...that is the question.
@hopefulballistics
@hopefulballistics 11 ай бұрын
Yep
@bustabass9025
@bustabass9025 11 ай бұрын
Why try to shoot too heavy for caliber bullets? The 270 WSM is very effective with 130 140 grain bullets. If the hunt scenario calls for a heavier bullet, increase the caliber, not the bullet weight. If it's not recommended, who cares if it "shoots" or not?
@hopefulballistics
@hopefulballistics 11 ай бұрын
Difference of opinion I guess. I enjoy seeing what it is capable of.
@bustabass9025
@bustabass9025 11 ай бұрын
@@hopefulballistics ...I guess
@ronlowney4700
@ronlowney4700 11 ай бұрын
🕵️‍♂️ Even If The 175 Grain Bullets Would Have Stabilized, At Those Velocities The 165 Grain Bullets Would Be The Better Choice! For That 175 Grain Bullet, The 280 AI Would Be A Much Better Choice! 🤑
@hopefulballistics
@hopefulballistics 11 ай бұрын
I agree, it was just to see if it would work. If it stabilized, I could have worked on the velocity though.
@ronlowney4700
@ronlowney4700 11 ай бұрын
🕵️‍♂️ It Will Be Interesting to See How That 165 Grain Nosler ABLR Bullet With H1000 Compares To Reloading Weatherby's Results With The 6.8 Western? 🤔
@chadperry4021
@chadperry4021 11 ай бұрын
@@ronlowney4700 he’s experimenting and showing us his results. Why do you always have to slide another cartridge that you cherry pick to make other people’s stuff look bad? I’d bet 50 bucks he knows about the 280 ai.
@ronlowney4700
@ronlowney4700 11 ай бұрын
🤪 I Know He Does, But You Have NO CLUE As To Our Other Conversations About Our Favorite Cartridges! 🤫
@ronlowney4700
@ronlowney4700 11 ай бұрын
🧐 The 270 wsm IS One of My Favorite Cartridge As Well! 🕵️‍♂️
@spiceolife
@spiceolife 11 ай бұрын
85g to 165 g...seems legit to me
@hopefulballistics
@hopefulballistics 11 ай бұрын
Yep
@spiceolife
@spiceolife 11 ай бұрын
@@hopefulballistics we'll be keeping our 270WSM's
@orcisneverbeslave9807
@orcisneverbeslave9807 11 ай бұрын
I think your charge is either too much or too little. 2400fps is too slow.
@hopefulballistics
@hopefulballistics 11 ай бұрын
It’s too slow for my liking, but it wouldn’t affect the stability either way imo. RPMs are different than muzzle velocity.
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