I have a Banish 30 gold, I use it on a 300 backcountry TI that is 7.4 pounds. It reduced the recoil better than the factory brake and now is a pleasure to shoot. Hope this helps.

I would chronograph for sure every rifle is a little different, the same load in my 340 deluxe is not the same ballistics in my 340 lazermark.

Case life is greatly effected by how hot your reloads are, max loads will decrease case life.

We are drowning here on the Oregon coast!

Maybe a faster 7mm..7mm-378wm

This has been my problem also, not alot of info on the 6.5 RPM.

Have you checked the scope to make sure it is not your problem. This happened to a friend of mine...

I like the 225 grain bullet in my 340, i get close to 3200 fps. i use 90grains of accurate 3100 powder. I have kill lots of elk at 400 plus yards with one shot, you do your part and the 225 is all you need and the recoil is less than the 270 grain. Hope this might help, either way good luck with your rifle and your hunting...