Re: 408 Chey tac, 338 Lapua, Suppressor, 2650 yards...
I was going to ask if you were sure the TRG had a 12 twist as the older one we were playing with the other day has a 12 and the 300 SMK bullets showed about a 20 degree yaw through the paper at 100 yrds. I know that they changed to a 10 twist or they offer them with 10 or 12. Either way I know some of 'em have 10 twist tubes. If your test rifle had a 12 what altitude were you shooting at?
Looks like a fun day of shooting.