I have a Benelli M2 20 ga that I have put probably 3500+ rounds through in the last few years. I have never had a problem with it cycling ammo until the last couple times out. The problem that I'm having is that when it cycles rounds, the action doesn't fully seat so I get a nice CLICK instead of BOOM. I'm attributing this to the type of lube I'm using (old school Hoppes gun lube). What do you suggest as being the right lube for these guns and where can I find it?
Also, if anyone has any suggestions on what else might be causing this, I'm all ears.