[quote=szihn]
[But the base line remains. If you have a bullet that retains (as an example) 80% of it's weight at an impact velocity of 2300 and you fire it from a large magnum so it impacts at 2700 you may find that the excellent bullet fired from a 30-40 Krag is terrible from a 300 Weatherby. So your point is spot on.
My base line of "60% weight retention or more" covers all the bases, even when you thrown in impact speed. If your rifle will cause a bullet to come apart at realistic impact velocities, use something tougher.
By the same token, if you have a bullet such as a Barnes X or Swift A-Frame that is very good from a 300 Weatherby, but you fire it in a 30-40 Krag, you may find that it will not expand past about 125 yards, and in some cases not past 75 yards.[
>>>> very well said szihn ! our crew all use nosler partitions and swift a-frames bullets out of our 257 weatherby mags. which to many of us is very similar to a 264 win.mag. , for deer and elk these two cartridges 257 & 264 do kill these animals fast.
Last edited by pete53; 04/15/18.
