Search:

the belts were important for headspacing on the older cartridges as well I think

Which I don't have.never found a good enough reason to go below 6.5mm but reason has never been much of a barrier for me:O_O:

My fast twist 243 with a 115Berger?:pacman::thumbsup:

Yep 243 is always the answer

Was the author drunk or have dementia?

Check out the best numbers you can find for windage and energy for both cartridges at 600, 700 and 800m.....

I think you'll find the 7RM a decent step up....