Squib308 mentioned: agree feels like an ammo challenge. Probably the brass is bulging? Have you ever inspected the winchester brass right before vs. soon after firing? greeprob said: I just obtained my 1st shotgun, but have knowledge with handguns. I am in search of two items: I've also been satisfied https://highimpactrounds.com/product/mossberg-590a1-tactical-12-ga-20in-8rd/