Shot gun Remington magnum 1100

Remington Model 1100 wooden stock magnum 3inch shell long barrel at cabelas after taxes close to 1500 this one use to fire perfectly now jams every or every other shot not sure what’s wrong with it not a gun expert ended up getting another one this one asking 850 obo could be simple easy fix not sure other than that. It’s amazing Gun located near Edson’s Alberta but possibly could deliver to city if you’re not gonna waste my time tnx prefer text 7808866330