I shot two rounds of trap with a stoeger s x s coach gun last month after I bought it for rabbit hunting for my boy. 20 inch barrels. Couple of guys commented it was too loud lol. I hit for 22 and 23. f*** em. I don't let the trapazoids have any slack.I've been shooting a Citori Upland Spacial for a few years now and I like it a lot. It's a 24" barrel so it's frowned upon at the trap range though, even with extended chokes.
As a reference I hit 24-25 with my browning a5 regulaly.
Not too shabby for a first try with a s x s