powder for 155gr
With this powder you can safely reach 1500fps IF you have a good after market barrel with FULL supported chamber.
I have G20 w. IGB barrel, standard length. Use standard primers, avoid magnum. With such barrel start at 12.4gr and rise in 0.2 steps.
With stock barrel start at 11.4gr and look for smileys, then stop and go down 0.2gr.
COAL 1.262 - 1.266.
With stock barrell you CAN NOT reach 1500fps safely.
All stated valid for winter temperatures. In summer go down 10% with powder, don't push your luck.
P.S.: for SD use only new brass.
Better be judged by twelve than carried by six.
Last edited by robert91922; 03-20-2011 at 16:36..