I have a savage model 12fv chambered in .22-250 with a heavy varmit barrel. We have tried a variety of different hand-load recipes with a variety of powder and a variety of bullets in type brand and weight. All of this of course is done with the proper safety procedures; always starting with the minimum charge listed in the speer reloading manual, and the annual Hodgon's magazine reloading manual and progressively working our way up until we see signs of excessive pressure.. We can get very tight groups with this gun and these hand-loads, however in most cases we can never get past the first minimum charge without flatening or blowing out primers. Oh by the way we use CCI 200 Large Rifle Primers. We were thinking of maybe starting with the minimum charge and working our way lower in half grain increments until the primers quit flatening and when were getting acceptable group sizes. Is there any danger in this?? Or is there perhaps a better way to solve this problem??