I have factory 7mmRM in Rem700, Sav110, Ruger #1, and Browning 1885.

I have built 7mmRM rifles on a VZ24 action, a Rem700 action, Mosin Nagant action, and a couple on 1908 Brazilian Mauser actions.

That is (9) 7mmRemMag rifles, and I will build a 10th by October.

Hodgdon max load is 59 gr H4350 with 140 gr 2,927 fps 50,000 CUP, but I find the threshold of extractor groove growth to be at 72 gr.
I find 70 gr 3.34" Nosler Ballistic tip moly has plenty of safety margin for all my rifles over all my hunting temperature ranges to ensure long brass life over many years. It varies between rifles, but typically 3400 fps over the chrono.

I have shot enough animals with a 300WM and with the 270 to know that with my humble skill level, the 7mmRM is the highest power/ accuracy combination in a 10 pound rifle/scope/sling/bipod/rear bag/ammo total.

If I could pack around heavier rifles, I would start building 338s.
If I want to build an ultralight, I will go down to 270, 6.5-06, 25-06, or 6mmRem.

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. -Ernest Hemingway
The man who makes no mistakes does not usually make anything.-- Edward John Phelps