Never owned a Mossberg. Having said that, the majority of the hunters involved in our deer drives, which are hard on shotguns, use a Mossberg with no complaints. Funny you should mention the Stoeger 3500, one fellow had a new one this year, and developed an issue where the bolt could not be made to go forward, ended his hunt with that shotgun. Not uncommon for a shotgun to develop problems on the hunt, but this is usually after many years of hard use. Always keep a loaner beater shotgun in the jeep for these happenings.