So I have a funny story. I was working to a load for coyotes with my 243 AI with a 29 inch 1-7.5 benchmark barrel. My main bullet is 105 berger hybrid (when they exist that is) and 115 dtac. The bullet I chose for the coyote load is the 87 gr vmax, and powder was hybrid 100v. Anyways I did a pressure test and then began working 3 shot groups and when I got about midway in the powder charge weights and it started to tighten up, and with the next group at .3 gr higher then the last all 3 went in the same hole ! I walked uo to the target and couldn't believe eyes it was 1 .308 sive hole, well I thought I had just found the most accurate load ever in my rifle. I loaded 5 to confirm and then ........ not a single one even were on paper. It was at this point I started to see how I git a 1 hole group , I loaded one more and went 10 feet in front of the target and shot. Hahaha they were definitely not holding together and the one .308 hole sized group was a bullet with a boiling lead core. Anyways there ya have it that's my funny story about my best group ever haha