Have been using the Lyman 311672 and Red Dot Powder with CCI-200 primers in a 26" Rem 700 rifle. Using 13.0 grains I am getting ~ 1,700 FPS MV and Std Deviations of 8~9. Accuracy is 2~3" at 200 yards. As I shoot many different rifles with cast bullets, I am trying to get better accuracy. I used a 13.5 grain charge and the groups were in the 2~3 foot range. Apparently this bullet is very velocity sensitive. I am asking for some advice...perhaps using a lighter charge might do the trick..say in intervals of 0.2 grains (12.0/12.2/12.4/12.6/12.8). Or is such a small change in the powder charge futile? The nose of the 311672 is on the small side so it cannot "bore ride" as ot was designed to do. Bullets cast out at .3095" and I size to .309". The rifle is very accurate with jacketed bullets