He he he, I have a two year old Sig 556 that shoots sub MOA and hasn't had a failure in thousands of rounds. Swiss AK design, super accurate. Dirty or clean doesn't matter, it won't jam. It tops both the AK and AR so you guys will need to decide who is second and who is third cause Sig 556 is claiming top gun.
Sold my 556, I reload, and it's a brass killer, plus this " SIG 556 • View topic - Check your 556 for wear/damage to the carrier " and the rails were canted. All Sig gave me was crap and lip service, ended up selling it to a buddy at a big loss. (He knew all the problems) Plus, bought mine before the big price drop.
but, I've got a 45/70 Sharps that'll do a lot better than that . Let's see how accurate that Sig is, 150 years from now....