Home Forums Reloading Big Game Rifles Lee Factory Crimp Die

I have a load for 150 grain SSTs in 308. I tested crimped verses uncrimped. The crimped had higher velocities, and better accuracy over the uncrimped.

Crimped: Avg 2836, SD 13
Uncrimped: Avg 2778, SD 16

I dont crimp the match bullets without cannelures, but those SSTs get crimped.