like i said the 70 gr shoots real good in my ppc varmit rifle with a shilen 6 groove 14 twist barrel, but i'm getting tired buying these expensive casings and then going through all the bullcrap of neck turning and fireforming.. it is to time consuming.
i just want to re-chamber it to a 243 with a 265 neck and eliminate all the ppc case hassel.... but screw the twist rate theory, with the same barrel,same bullet, and load it a little light the 243 would shoot pretty much the same speed as the ppc, but all i hear is no no no the 243 needs a different twist rate... and you know what???? nobody can tell me why. and why would it all your changing is the casing, what does that have to do with the bullet stablelizing, its the same barrel,same bullet,same speed, how does the bullet know you put a slightly bigger casing behind it. its something like the 223 verses the 222 one is slow twist one is a faster twist... understandable one shoots a light bullet well the other a heavy bullet well,... but in my case its the same bullet so why does it require a different twist???????????