Reliability ‘issues’ with the Benelli M2 are WAY overblown on the internet. I own three - including one with easily more than 7,500 shells through it - and they are fantastically reliable with all sorts of ammunition. This gun is actually 100% reliable with the Federal Top Gun Extra Lite 7/8 oz 12 gauge shell. They do however require a couple cases through them to be fully broken in.