I honestly don't know what group size my rifle can shoot. I very rarely shoot from a bench. I much prefer to practice from the real world positions I find while hunting. I do know that my mod. 99 300 Savage w/ peep right is good to about 200 yards from kneeling or standing if I can outmoded arm against a tree , half this if true decomposition offhand. My 270 could do 300 from prone( never have shot that far at BY but some woodchucks occasionaly). Nothing against anyone who chases small groups, but it is not my thing.