I've shot the 135 gr Berger Hybrid in my 1in10 twist 257 Weatherby. It only works because I'm shooting at high elevation. I can get up to 3300 FPS. The load that my rifle likes is only going 3150 FPS. I've shot it out to 800 yards. Also Weatherby makes the chamber with a lot of free bore. C.O.L for my 135 gr load is 3.525".
@@stienfamilyoutdoors Everything is factory from it. Weatherby makes the chamber with a lot of free bore. I can't fit it in my magazine... but my load is 3.525" Again this only works because I'm shooting at 5100 feet and above.
@@ReloadingWeatherby makes sense! I have a few pounds of both N570 and Retumbo for my 28 Nosler I want to try if I take the plunge on a 257 project. Struggling now with deciding between a WBY or doing a wildcat based on the 7 or 300 PRC. Im not sure if I’d get enough velocity with a 6.5 PRC parent case to make it worth the effort. I’d like to be in the 3200-3400fps range with a 133+ grain bullet.
I have been loading the 25s since the 1970s . 250 Savage , 257 Rob 25-06 & 257wby . Bullet manufacturers have neglected this caliber & only recently produced high bc bullets . For years I shot the Sierra 117gr spbt or the Speer 120gr spbt ( bc of .480) which is the highest bc 25cal Bullet that reliably stabilizes in a 1in10 twist . My current 257wby load is 120gr Speer spbt & a full case of Retumbo with a federal 215 primer & Hornady cases . Bullet seated out as far as the magazine will allow & feed reliably . Muzzle velocities are 3340 to 3350fps & .7 inch groups at 100yds . Lighting of a rifle cartridge with very manageable recoil . For hunting medium game to 450 or 500yrds what more do you need ? For elk I'd use a 120gr Nosler partition or a Barnes 115gr tsx or the ttsx 100gr . Cheers and good shooting
Actually been looking very closely at the 257 Weatherby. The build plan as it is now is a coup de gras action, Hart 26" barrel and a Trigger Tech Diamond trigger all nestled into a Woox Superleggera chassis. Did wonder is a 12:1 twist would help this become a good distance bench shooter. I know next to nothing about the effects of changing twist rates. Current ammo choice would be a 100 or 115 grain projectile I plan to load myself. Oh yeah I'm also new to reloading.😂 Other current project which is coming along quite well is a Sharps 25-45, upper for my AR I'm open to any suggestions about this build and especially barrel twist... Thanks for the video.
I don't know anything about reloading , so not sure this would even work. But , how about a 257-300 with a fast twist barrel and the high bc bullets? And / or with that set up. could you get reg. 257 performance with a shorter barrel?
.257 Wby Mag was designed to kill, and it has killed a lot longer than the cartridges that you are comparing it to. Mouse to Blue Whale, a animal can only be dead not deader.
I've shot the 135 gr Berger Hybrid in my 1in10 twist 257 Weatherby. It only works because I'm shooting at high elevation. I can get up to 3300 FPS. The load that my rifle likes is only going 3150 FPS. I've shot it out to 800 yards. Also Weatherby makes the chamber with a lot of free bore. C.O.L for my 135 gr load is 3.525".
That sounds like an awesome load! Are you using a factory chamber?
@@stienfamilyoutdoors Everything is factory from it. Weatherby makes the chamber with a lot of free bore. I can't fit it in my magazine... but my load is 3.525"
Again this only works because I'm shooting at 5100 feet and above.
Dang! That is a heck of a COAL for that round! But I bet you have nearly the full powder capacity to work with that way.
@@stienfamilyoutdoors I hit pressure well before I get close to filling the case. I've only used IMR 7828 SSC. Need to try other powders like H1000
@@ReloadingWeatherby makes sense! I have a few pounds of both N570 and Retumbo for my 28 Nosler I want to try if I take the plunge on a 257 project.
Struggling now with deciding between a WBY or doing a wildcat based on the 7 or 300 PRC. Im not sure if I’d get enough velocity with a 6.5 PRC parent case to make it worth the effort. I’d like to be in the 3200-3400fps range with a 133+ grain bullet.
I have been loading the 25s since the 1970s . 250 Savage , 257 Rob 25-06 & 257wby . Bullet manufacturers have neglected this caliber & only recently produced high bc bullets . For years I shot the Sierra 117gr spbt or the Speer 120gr spbt ( bc of .480) which is the highest bc 25cal Bullet that reliably stabilizes in a 1in10 twist . My current 257wby load is 120gr Speer spbt & a full case of Retumbo with a federal 215 primer & Hornady cases . Bullet seated out as far as the magazine will allow & feed reliably . Muzzle velocities are 3340 to 3350fps & .7 inch groups at 100yds . Lighting of a rifle cartridge with very manageable recoil . For hunting medium game to 450 or 500yrds what more do you need ? For elk I'd use a 120gr Nosler partition or a Barnes 115gr tsx or the ttsx 100gr . Cheers and good shooting
Actually been looking very closely at the 257 Weatherby.
The build plan as it is now is a coup de gras action, Hart 26" barrel and a Trigger Tech Diamond trigger all nestled into a Woox Superleggera chassis. Did wonder is a 12:1 twist would help this become a good distance bench shooter. I know next to nothing about the effects of changing twist rates.
Current ammo choice would be a 100 or 115 grain projectile I plan to load myself. Oh yeah I'm also new to reloading.😂
Other current project which is coming along quite well is a Sharps 25-45, upper for my AR
I'm open to any suggestions about this build and especially barrel twist... Thanks for the video.
I don't know anything about reloading , so not sure this would even work. But , how about a 257-300 with a fast twist barrel and the high bc bullets? And / or with that set up. could you get reg. 257 performance with a shorter barrel?
.257 Wby Mag was designed to kill, and it has killed a lot longer than the cartridges that you are comparing it to. Mouse to Blue Whale, a animal can only be dead not deader.
257 Weatherby definitely has an awesome legacy!
how about doin review on 6.5/300 wby mag
that was ROY W cart he used it in africia