It's one of the cleanest running guns I own. Got 600 rounds of surplus junk through mine, no malfunctions, and no fouling. Only scrubbed the barrel; rest of the firearm is clean. I mean, run your finger across the bolt face and get next to no gunk, clean.
Reciprocating handle could be an issue, if you don't hold it right it'll tear your thumb off (or make you wish it was). I put a pistol grip on the lower rail in front as a safety precaution - keeps my hand clear if I forget.
As far as accuracy? With those (rather spectacular) iron sights at 300 yards I put all 20 rounds in a 4" circle with surplus ammo. Rifle is capable of better with match ammo and a scope, I'm sure. Just don't see the need - if I can hit that well at 300 with iron sights, what's the point in ruining my reaction time on the rifle with a scope.
Unrelated, but I had a ND with an AK-47 indoors once. Rifle was pointed up, buttstock on the counter, muzzle 6" in front of my face. Rifle was leaned up against the counter with the top facing me (magazine away). Saw a loaded magazine next to it on the counter, jacked the round out of the chamber to clear it and dropped the hammer. Didn't see the loaded mag IN the gun.
Was decidedly NOT pleasant. Didn't even HEAR the gun go off. Everything just went quiet, white flash that staggered me a little. Lost my hearing for a good 5 minutes. Vision was teared up for about the same amount of time. Friend came in to the kitchen from the living room, and I could see his lips mouthing the words "ARE YOU OK" but I couldn't hear anything.
With an AK doing THAT.. I'm sure that shooting a 308 indoors will be ugly. But chances are you won't hear much of anything for awhile after the first shot, and it won't bother you until later.
FYI - I *have* shot my SCAR indoors - our range has a heated/cooled building with benches and window shutters you can open. Even WITH hearing protection (-25db muffs) it is unpleasant. Learned to make sure the muzzle is OUT of the window completely before firing.
