I no longer believe its barrel heat that causes groups to open up, but rather that 3 shots is just not a big enough sample to be an accurate indicator of where the next shot is going to go.
Yep!
I think there's a lot of merit in that. I'm going to shoot a few 3 shot groups on the same target with my 308 Montana and see what I come up with. I'd be pretty pleased if the entire group looked similar to CT's.
Tanner
I try and use the exact same target every time I go out shooting. I start off each session with a 3 shot group. I then check the combined group size of a few sessions to determine shift in point of impact.
Pieter
Last edited by m77; 11/03/14.
