I bought a SOTA arms upper and set it on an Anderson lower, I worked the factory trigger to 3 Lbs. crisp, . 030" travel, comfortable with a trigger shoe. easy peasy. I clean and lube the mag's with dry PTFE spray, never had a problem.
The SOTA arms upper came with a very effective brake. (I liked it so much, I bought one for my Savage 458 bolt gun build.) That'll learn ya about recoil with 525 grain cast lead bullets) One shot, without the brake was a real eye opener.
I started out with a box of factory 300 grain jacketed hollow points. The cost alone sent me to my loading bench. My all around load is the jacketed 405's over a stout charge of 4198 @ about 1500 FPS.
I keep a magazine full of High Zoot 525 grainer's in my pocket for really big (400 +) hogs and the occasional rampaging '58 Buick. or escaping Piper Cub.) Yer never alone in the swamp...
Haven't had any problems with the Anderson stock/buffer tube and adjustable stock, although I did add a limb saver shotgun recoil pad to ease the knurling on my T shirt. (more than likely, good parts and the brake)
Don't know what else to say about recoil, I shoot a lot of the big Africans, I'm really OK with the 305-405 grain stuff, (less bite than a .308/.270,/25-'06) But I will say that the 525's are rowdy, 'specially in the bolt gun.
Hair pulls are another matter, a piece of clear packing tape is the best fix I've found.
RED