I run a 243 because I have the brass and dies. My friend built a 6cm and he is shooting 87 v max pretty fast and accurately. If I reloaded and was starting from scratch I would highly consider the 6CM. If you need to walk into a store and buy ammo, the 243.
I only use it for getting in and out of a tree stand. I will use it when doing load development as well because I load my gun in my gun room then walk outside to shoot. I leave it off usually and it does not reset by itself.
My friend started with a 6.5 shooting 95 grain vmax. It did fine but for longer shots a 243 or 6 creed with a 70-90 grain bullet shoots flatter. We are all switched over to 243 or 6 creed in my group of friends.
25 grain bergers have been great in my 17 hornet at 3200 fps. Not sure how they would act going faster. I usually use a 243 but for around my house I use a 17 Hornet. I have shot 3 coyotes and several raccoons with no hide damage to anything.
I upgraded my 700 ML with the badger ridge and it shot awesome with BH209 and Barnes 250 grain TEZ. If you want to go smokeless one day you can still use the bolt nose if you want to use a 209 ignition.
I had an encore with a terribly rusted barrel. It shot fine still and I killed several...
From Central IL. Long time lurker, first time poster. Doing a haul road Caribou hunt with my friends from highschool/college. Mostly hunt Midwest deer, coyotes, and turkey. Hope we don't freeze to death in the tundra.