Every Marine is a rifleman...............
I actually passed some of my ancestral guns to my sister, brother in law, grandsons, and a nephew, with the rest of my collection of swords and gun going to my son and daughter's as an early inheritance.
I inherited Dad's M-98 Spandau in 30:06 and it was too light and straight stocked to be comfortable to shoot off bench. I hate to shoot anything that starts me flinching, because it is a hard habit for me to break. Hee, hee, hee, snicker, snark, snort, I gave it to my nere do well nephew as "Grandpa's favorite deer rifle", to always cherish as his first deer rifle.
The 65% muzzle break on the front of my Barrett 90 bullpup reduced the free recoil from 110ft.lbs, to under 40 ft.lbs, which along with the 22 lb rifle made just a huge shove instead of a center punch like a sporting weight 7mm or 300 mag calibers. It is the recoil velocity that kills the shoulder, not the total foot pounds.
The most accurate 50 BMG rifles weigh enough that they don't need a muzzle break and are designed to keep the recoil straight back and parallel, rather than rebounding up. Heavy enough to make them impractical for anything beyond bench competition.
https://saami.org/wp-content/uploads/2018/07/Gun-Recoil-Formulae-2018-07-9-1.pdf