Kimber 243

My old Ruger 77 really didn't like the 55g V-max. But shot great when I move up to 70g or heavier. Could just be a Ruger thing though .
About all I've got for you!
GOD BLESS. Dean

Off hand, I don't even remember what powder or charge weight, sorry.

My 243 is a commercial FN 98 Mauser with a Douglas barrel, and it doesn't like heavy bullets - like 100gr. It shoots well with Sierra 85gr Game Kings (HP) and just loves 70gr Sierra Blitz Kings.

I have three 243's but I use the 75HP Sierra and 85HPBT Sierra only in all three.

I tried some back a few years ago but could never get them to group better or even close to the serria 60gr. As a matter of fact I still have some of them some place around here. I think that they are just too short to get a good group. I also have a 10 twist

I have 3 10 twist and 1 9 twist none will shoot anything liter than 68 worth a darn.