10mmShooter
02-03-2013, 10:46 AM
Hey Guys,
Just starting to cast for my .308, currently I use Lake City brass and use a Redding "S" bushing sizing die that acccepts the whatever neck size bushing you choose. Currrently when loading SMK168s in Lake City brass I use a .336 size neck bushing gives me the -.002 neck tension I prefer.
Soooooooooo ??? if I'm loading a sized .311 cast bullet in the same brass....am I to assume I should use a .339 neck bushing...obviously the Sierra jacketed bullet can take a bit more abuse during the seating operation... I'm hoping to avoid damaging my pretty lead projectiles during bullet seating.(yeap got a Lee expander die too to just sligthly bell the case too)
I coming up with the .339 by thinking I currently use .336 bushing for jacketed, my lead projectile is +.003 larger than my Sierra MKs, so .336 + .003 = .339 ??? size neck bushing..all using the same Lake City brass.
Just starting to cast for my .308, currently I use Lake City brass and use a Redding "S" bushing sizing die that acccepts the whatever neck size bushing you choose. Currrently when loading SMK168s in Lake City brass I use a .336 size neck bushing gives me the -.002 neck tension I prefer.
Soooooooooo ??? if I'm loading a sized .311 cast bullet in the same brass....am I to assume I should use a .339 neck bushing...obviously the Sierra jacketed bullet can take a bit more abuse during the seating operation... I'm hoping to avoid damaging my pretty lead projectiles during bullet seating.(yeap got a Lee expander die too to just sligthly bell the case too)
I coming up with the .339 by thinking I currently use .336 bushing for jacketed, my lead projectile is +.003 larger than my Sierra MKs, so .336 + .003 = .339 ??? size neck bushing..all using the same Lake City brass.