been shooting T/C s for about 35 yrs. I've killed deer at 300 plus yds. with wild cat loads. A few that we like best are from the 307 case. John & Don Bower came up with a few wild cat's back early 80's. we liked the 6.5 Bower and the 6.5 JDJ #2 also on the 307 case both had a 40 degree shoulder and were just a little different from one nother. Both were a lot like the 260 rem. Don't let anyone fool you these little single will whole their own at long shots. We shot a match at 500 meters just outside Denver, Co and the smallest group you could cover up with a 25 cent piece. We talked To Don few years later and they were shooting a 1000 meters. We found out about Don in a Guns & Ammo in the early 80's.
I would go with the 260, 7-08,or 308 or maybe some of JDJ's rounds. any larger case and you'll be blowing unburned powder out the end of your barrel with very little gain
