I tried some 62 gr military grade, some 55gr Fed BTHP gameshok, some 55gr TRU..and finally some expensive Win ballistic silvertip 55 varmint the other day at the range. Best grouping was cold at 100y with the 62gr...close would be the BTHP Fed gameshok...very decent and I would say on par with the 62gr...TRU (also made by federal) was not as accurate as the two first rounds....just did not want to group...had some flyers that I can not account for...although it was raining a little and gusts ofwind kept showing up. The Win Silvertip had a black oxide (lubalox) on it to reduce fouling....I found it to group the worst of them all. group opened up to around 1.5-2 " at 100. I had the BTHP grouping at 1"...and three of the rounds were cut the same lines...