Doing the Impossible! 257 WBY 135 gr Hybrid Target

[@13bigcrimson94]

Can you get a 26 inch barrel custom made 1: 8.5 twist for the Berger 135’s in 257 caliber? Might worth the custom upgrade to achieve the results you’re after. Just might work. Great videos and well thought out information.

[@joshuawhite6523]

You have tail wobble. If you read up on subsonic bullet performance you will find some good info on tail wobble. Keep the barrel clean and it will minimize this.

[@artfranz2273]

Its happened to me twice now, with marginal stability situations , they shoot and group well at 100, but at 200 and beyond the groups open up really fast and there’s evidence of key holing starting to happen.

[@ReloadingWeatherby]

What elevation you at?

[@artfranz2273]

@@ReloadingWeatherby I’m at approx 3000 ft

[@artfranz2273]

Since those two experiences, whenever I’m close to marginal stability, I stay within the stable factor, save the components and the frustration. But in your situation, I would definitely try them at longer ranges and see what happens. Awesum if it works!

[@ReloadingWeatherby]

Took it to almost 800 yards and it did great! kzbin.infoscRnmXrISfo?si=m-3RvfvNGnATIlJ3

[@GeneralObeseus]

i would like to see a 25RPM and be able to shoot them bigger sleeker bullets. i imagine that eventually we could see a 140 grain or even a 150 grain bullet in the future!

[@Weatherby406]

Been asking for that for awhile

[@marcmoore4115]

The loads shown in this vid are extremely similar to the performance of the .25 Sherman Short Tactical (SST). It shoots the 135grs around 3200fps and is designed for them, also fits in a short action. Absolute laser beam, even past 1000yds. Only becomes subsonic at nearly 2000yds! And if you go by Energy - 1000ft-lbs at 1200yds... plenty lol. With my conditions set and 10mph wind, to 1000yds it only drops 191" and needs 39" windage... everyone hypes up the "6 MILs to 1000" of the .28 Nosler... but this comes damn near to hitting 5 MILs to 1000! (5.3 MIL with my conditions set)

[@albertjabberin739]

.257 wby would still outclass it, just needs faster twist barrels. Now 270 rpm would be cool if it could match or better 6.8 western.

[@wheelchairhillbilly]

Yah, I'd say just tighten the twist on the 257. To make a bit of a gap, I might sooner go with 24, but even that might not be much better than a tighter twist 240wby.

[@marcmoore4115]

@@wheelchairhillbilly the .240 Wby is only bsrely more powerful than a 6 Creed though, even with the faster twist rates imo it just doesn't make sense. A faster twist .25 cal capable of pushing those 135gr at 3000-3200fps would be an awesome cartridge for all around performance both for hunting and target shooting. I can see the idea of a .25 RPM being cool, it might be a bit too overbore, but could still work well. I'm not sure what velocities it might get. I agree with the other comment that a .27 RPM would be very cool. 175gr going really fast would be fun.

[@Drivapete]

Try seating the bullet out some more, you have plenty of freebore using a longer, heavier lead core bullet. Also, try H 1000 or RL 25 with a Fed 215 match primer. I have the same exact rifle and it works great for me.

[@steveblack5952]

Try 63 grains of H1000. Or retumbo.

[@bustabass9025]

135 grains is right in the wheelhouse of that new 270 WSM I just picked up. Even though it may be possible to shoot bullets heavier than in published data per caliber, it just seems to me like the rifles perform best within those specified bullet weight parameters. That's why I own so many I guess, rather than try to cook up loads I hope will work. After all, the gun, powder, and bullet manufacturers have done a lot more professional testing than I'm ever going to do. Had a buddy whose 300 WinMag blew up on him trying to push heavier bullets at higher velocities. He don't do that no more.

[@ReloadingWeatherby]

Just doing this for fun.

[@bustabass9025]

@@ReloadingWeatherby Hmmmm, okay.

[@karltruththathurts9987]

You gotta have the twist rate to stabilize the bullet

[@ReloadingWeatherby]

At my elevation... it worked. I even shot it out to 800 yards

[@ashmerch2558]

IMR 7828 and Weatherby are like peanut butter and jelly

[@JohnJones-zo7iv]

For both his magnums compressed loads of h4831 would without a doubt in my mind solve his moa issues guarited

[@dotsightpredator]

They could be alittle rear high but I would say you could probably get that out with a powder charge. I’d love to see this work

[@ReloadingWeatherby]

I'll get it sub MOA

[@wheelchairhillbilly]

Great video, and I hope you don't give up on it. In my opinion h1000, or retumbo would probably produce better accuracy, and be better velocity with that large of a bullet, but you never know. In my opinion, if the cold bore shot always hits the same spot, a tiny group size isn't as important.

[@WesternReloader]

You have great taste Austin. If I could afford several cartridges to add to my collection I really like the 300 Weatherby and the 257. I live at 5200 elevation but it doesn’t help my bronco engine eat enough 😂

[@thomasdaum1927]

I would try the next slowest burn rate powder , that might be the ticket ! I think 7828 is slightly faster than optimal for the 135s . Maybe an RL 25 or Retnmbo could work , I think it’s worth a try !……..

[@Bullets4Bucks]

See stability at 300 yards

[@andrewhirsch6472]

Given the velocity of the cartridge and the heat you'll generate, methinks you need to try one of these loads in a target rig, rather than a hunting rifle. Specifically, a fat, or "bull" barrel.

[@ReloadingWeatherby]

Maybe... thanks for watching

[@luvtahandload7692]

Grab ahold of that rifle like you own it. 😊

[@SpudOutdoors]

I use a 7.5 twist on 135

[@ThemantleofElijah]

Hey I wanted to tell u that I picked up some what I believe are old school Nosler Partition lathe turned 200 gr .30s I’m gonna make loads with them for my 300 Wby, hoping to use these on elk in Wyoming Lord willing. I figure they would make good elk medicine.

[@ReloadingWeatherby]

Oh very nice! That should do great!

[@madman432000]

Seems to me the top of the bullet hole is torn a little more than the bottom. Those 92 g HH had nice clean holes. Shooting at farther distance may tell more. Maybe try 7977 powder if you can find some.

[@ReloadingWeatherby]

Maybe

[@ReloadingWeatherby]

Did great out to 785 yards kzbin.infoscRnmXrISfo?si=m-3RvfvNGnATIlJ3

[@rustyshackleford2723]

The new Weatherby riles can be ordered with a different twist rate barrel....

[@ReloadingWeatherby]

Interesting

[@rustyshackleford2723]

@@ReloadingWeatherby that new 305 rifle, can order a custom barrel or is it just newer twist rates, something like that

[@madman432000]

@@rustyshackleford2723 The 307 has faster twist rate in 240 wby and 243 win. Rest of the calibers are standard twists

[@aaronwilcox6417]

Hope it works out for you. I enjoyed your effort on the 270win.

[@ReloadingWeatherby]

Thanks for watching and commenting!

[@tacticalmattfoley]

The Berger data is interesting coupled with real-world results. Since G7 BC is for long-range considerations, it would be interesting to see how these loadings perform out to 400+ yds.

[@drakegrizzell4258]

I want to congratulate you on what appears to me a successful experiment that challenges the established "understanding" of ballistics. Too often, this community, and the world writ large, seems to take established parameters and never even thinks to question whether this is a boundary that can be pushed. The "math" says its impossible and therefore dont even try... but as you are discovering, maybe the math is overly conservative or incorrect itself? My wife is interested in trying .257 Weatherby as her "big gun" down the road, this has given me quite a bit to think about concerning the calibers flexibility..

[@ReloadingWeatherby]

Elevation plays a big role in this.

[@drakegrizzell4258]

@ReloadingWeatherby That may very well be the case, but then again perhaps the velocity, rifle, or other factors may play as much or more a role too. Essentially, this proves that more experimentation with other variables is warranted. Congratulations, you have fascinated me with this concept!

[@jameswilson5562]

I wish they would produce ablr around 125 grain

[@gerry6.8]

Interesting, at your high elevation it probably will work. Hopefully you will get some good accuracy out of them.

[@WayStedYou]

Elevated and high velocity increading the RPM is most of what will save it

[@ThemantleofElijah]

Austin I’d use it, first and second shot were close I’d use it to my hunt that third shot still in kill zone for anything ur gonna hunt

[@ReloadingWeatherby]

I'm going to do more tinkering

[@Robert-fs1pb]

Maybe a few grns less powder.

[@Hudge76]

I tried the 165 ABLR in my 1:10 twist 270 WSM and they did not stabilize. I plan on trying them soon in my Ruger American 1:10 twist .270 Win.

[@ReloadingWeatherby]

What elevation are you at?

[@Hudge76]

@@ReloadingWeatherby the airport across the street is 83 Ft above sea level. We lost probably 10-15 Ft at the range. People think just because it’s AK, we are at higher elevations. Hunting wise I definitely would be.

[@ReloadingWeatherby]

@@Hudge76 I don't think it's going to work for you until you're above 1000 feet

[@waynemayle865]

We need berger to get on the ball an make some 115gr again there all but gone now days

[@michaellane4003]

I wonder how they will be flying out at 300-400 yds?

[@ReloadingWeatherby]

I'll be testing these out to 800 yards in the next month

[@ReloadingWeatherby]

kzbin.infoscRnmXrISfo?si=m-3RvfvNGnATIlJ3

[@GeneralObeseus]

Try to do Horndady 250 gr A-Tip on the .300 Weatherby!

[@ReloadingWeatherby]

I've been messing around with the 225 ELD-M in my 300 Weatherby. I am getting right at MOA with a velocity of 2900 FPS

[@Weatherby406]

Seen um doing 3200 in the 30-378

[@Dave-cf2ng]

The bullets will wobble. Going to lose huge amounts of BC and performance.

[@ReloadingWeatherby]

I'll be taking this bullet out to 800 yards. We will see...

[@mikekopmanis2099]

What are you shooting at, 25yds?

[@ReloadingWeatherby]

100 yards

[@clayp520]

So...did you go to the range after church...or is the button down dress shirt your range shirt? :)

[@ReloadingWeatherby]

I don't wear a blue shirt to church... this was right after work

[@davhuf3496]

3150 fps?

[@ReloadingWeatherby]

Faster

[@davhuf3496]

Cool!

[@rustyshackleford2723]

Flyers don't count...

[@ReloadingWeatherby]

If only 2 shot groups were a thing lol