Was watching Genesys which sucked the other night and was wondering, what gun could stop a T-800?
There are a few different time lines that show different modern weapons used.
Genesys: Used a Barrett with AP 50 cal. Most likely to penetrate. But to heavy to carry on the move and find ammo if judgement day happens.
Salvation: A 223 or 7.62 can stop a T-600 (older model). But not a T-800. And Christian Bale uses some kind of bolt action toward the end with some penetration results. Looked like a 50 cal mag he loaded, but online says it's a shotgun. 40mm used also, but not believable due to round not traveling 50 yards. It wouldn't twist enough to arm, so it would bounce right off.
T-1: Shotgun can knock down a T-800. Hard to believe because they weight a few hundred pounds.
Sarah Connor Chronicles: Barrett AP 50 cal. used with results.
So the favorable would be a semi auto 50 cal, but I don't think it would be easy to find if judgement day happened and it's ammo. 40mm would be interesting to see results once round does arm. But if a T-800 comes within 50 yards, you're screwed. Any other cool gun that I don't know about? How about a "sticky bomb"? You can get in close, but have to run like hell/turn a corner once it sticks.
No plasma rifles invented yet.