Have an old 12 ga pump that hangs up/sticks after firing and will not eject the spent shell. Unfired shells cycle perfectly. What component could be responsible for this?
Beat me to it. The mod12's have a disconnect that the slide has to move forward(usually during recoil) in order for it to cycle. I've got a couple that sometimes you have to push forward on the slide to get it to cycle.Just an FYI. Most old JC Higgins were actually High Standards. Higgins may have also put it's brand on some Winchester Model 12s.
The point about cycling forward is interesting and I will look at that later. Is the disconnect on the discharge side (right) side of the frame? /QUOTE]
Is this the gun your talking about? https://en.wikipedia.org/wiki/Winchester_Model_1912
If it is a Winchester Model 12 made for Higgins it does have a feature that is unusual and could be the problem.
Data point; My Win Mod 12 (made in 1929) requires that after firing the pump must be forced forward before it can be drawn backward to work the action of the gun. FYI....Okay, so the extractors seem to function under spring pressure so I don’t think it is that however the problem is not that the shell won’t extract when the action is opened - it is the action won’t open.
I have not tried different shells yet but years ago when I tried to use this I had high and low brass shells doing the same thing - probably why it has been stored in the back of the cabinet for so long. I will grab a couple other shells to test with.
Like I said before.......... Aluminum vs brass; the aluminum sometimes expands a bit more causing stuck cases....Is this only happening with aluminum base shells as opposed to brass based shells?
I have seen some guys have problems when shooting shells like Remington Gun Clubs. It is not common but it does happen.