I just shot some .223 using the CCI Small Pistol Magnum primers (CCI 550) in a reduced load. The load was 20.5 grains of IMR3031. I was sighting in a rifle at 50 yards and didn't need much velocity. There were no signs of pressure.

kwg

For liberals and anarchists, power and control is opium, selling envy is the fastest and easiest way to get it. TRR. American conservative. Never trust a white liberal. Malcom X Current NRA member.