I've always had this question running in the back of my mind when I'm shooting a gun that's new to me and I figure it's a good time to ask people that have a better understanding of accuracy/gunsmithing than I do. I shot a couple of different rifles yesterday, all in the same weather conditions (60*F, 2-4 mph winds) from the same bench and rest. One Win Model 70 .270 (great trigger) grouped 2 moa in a perfect triangle, one Rem 700 7mm-08 (horrible trigger) put 2 shots 1/2" above each other and the 3rd shot another 1/2" higher and 1" to the right of the 2nd shot. The last gun is even more puzzling. Brand new Browning A-bolt, Mountain Ti .243. After cleaning the gun, one round was shot to dirty the bore and a test group was fired - 2 shots touching, running from 2:00 to 7:00 with the 3rd shot 1/2" further away straight "down the line". After cleaning and following the instructions on the Tubbs Final Finish bullets (3 finest grits were only used) the gun shot a larger group, with the 2nd shot 1" above and 1" to the left of the first shot, and the 3rd shot 1/4" down and 1/2" to the left of the first shot. Factory ammo was used for all 3 guns, and with the Browning, only 5 shots were fired at a time during the Tubbs process to allow the barrel to cool. What do those group shapes tell me? I can post pictures if anybody wants.