Flash hole size?
MIKE WISKEY Member Posts: 9,245 ✭✭✭
edited March 2008 in Perry Shooter Competition Shooting and Reloading Forum
I'm working up loads/breaking in a .308 and am using a batch of brass with small flash holes (std. decaping pin is way to large). head stamp is 'RD 80 nato mark', I'll assume this is 'radway green' 7.62x51. any way what effect will the small flash hole have on load developement (higher/lower pressure-std dev.)? The best loads I've found so far are shooting .3's & .4's[:)].