I got the tightes group in my son TRG 22 using the new palma 2156 by Sierra,second A-Max for some odd reason did not get good results with scenar 155palo said:I am shooting berger 155.5 and lapua 155 bullets with my sako trg, 26in barrel, 1/11 twist.
Both bullets shoot well but I do wonder if there is a better bullet that I should be trying for 300 and 500 yard competition.