6BR Remington. After experiencing some occasional flyers using 70 grain Varmagedons I decided to try some better bullets. 68 grain Barnes Match Burners were tried at jam length and .005" increments shorter. The first three groups were forgettable- 1" to 1.25". My last set produced this group.
4 in a group and I pulled the last shot out of the group.
Mostly an experiment to see if I could post an image. It takes some fiddling.