Funny how our experiences differ.
An inertia gun requires less maintenance than any gas gun, provided you don't try to feed them Kent steel shells which would likely induce a failure in any shotgun ever made.
My M1 Super 90 'Field' has been trouble free for 27 years now. 20 gauge Cordoba has been perfect for 15 years. I can't say that about my Beretta 391's. They both needed the bent carrier mod from Cole's. That fixed the reliability issues with them. That said, I just shot the 'Ghetto Special' Teknys 391 for 3 weeks in a row because all I can get here is the Wally World 100 packs and it ran through 600 of those with nary a burp. This may be because Federal has finally learned to make a smokeless shotgun shell. The gun is still clean and would doubtless run 600 more without service.
My Beretta O/U guns have been good, except for that part about the broken hammer. The various Brownings here have never broken a hammer. They do, however, need pins and springs once in a while unlike the Berettas.
My point is that to state the Miroku guns as the most reliable is just absurd.
