When do YOU give up on a chosen bullet? I have a factory 12 twist 223 that I really want to shot the 53gr vmax, and after about 300 of them down range and 4 or 5 powders I can't muster better than 3 into 3/8" or 5 into 5/8"-3/4" . The 55 gr berger shoots better in this rifle, so I know the gun is capable, but danged if I didn't just pick up another box of these 53's.