JSH
Gold $$ Contributor
Anyone know the threshold on RPM for Speer 50 grain TNT? My rifle is 7.5 twist.
Loading my .223’s up and ran out of Vmax and Sierra’s. I push them as hard as accuracy will allow.
lol, the SPSX make it about 20’ from the muzzle, may have to put my 12 twist barrel back on to get rid of these.
I found some old notes with specific bullet RPM but nothing on the TNT
Loading my .223’s up and ran out of Vmax and Sierra’s. I push them as hard as accuracy will allow.
lol, the SPSX make it about 20’ from the muzzle, may have to put my 12 twist barrel back on to get rid of these.
I found some old notes with specific bullet RPM but nothing on the TNT
