Re: TRG,,, what weight bullets?
I did that very test in my trg-22. I used 155,168,and 175 SMK's. I used IMR-4064 and Varget powders. At 100 and 200yrds(only 2 distances my range has) the 168's shot better, followed by 155 then 175's. I know this is pretty close range, but no group was over 3/4" at 200yrds. I do 10 shot groups for load testing. So when i visit my father in Idaho I will do the same test in his backyard range. We built a range to 900yrds.
By the way I did that same test with my FN-SPRA2,Kimber Advanced Tactical,and my Rem700P and got the same results. They also liked the 168 SMK. Hope this helps out.