The .375 doesn't affect my head much after long sessions, but goldang my neck sure gets stiff. I can fix it quickly, however, with a few shots from a .416!
I'm usually good for a cou8ple dozen rounds with the .375 from the bench, but that's it.
I did get a little free chiropractic from my .375 once -- my shoulder & neck had been hurting, then BANG-WHAM-pop-OUCH-OOH-AAH. Suddenly it felt a lot better. (Sort of similar to the effect I got in an unarmed self-defense class once, trying to release myself from a chokehold placed by a large-animal veterinarian.)
I took a friend to the range last year -- he'd bought a pair of Blaser R93s with a bunch of barrels & scopes. After he got the .22-250 barrel zeroed he switched to the .416 Rem. Mag. I offered him my PAST Super Magnum pad and he turned it down, thinking his sporting clays vest was enough. After one shot, he asked for the pad.
