Slugo - as I have mentioned before, I had one of their 28 gauge guns. This was going to be my main chukar gun for climbing after those rascals on the steep shale slopes out West. It had issues - to be polite - and after three trips back to Ruger to fix them, it went away. Too bad, as it wasn't bad looking, but performance, not looks means birds in the bag.
Look at CSMC - they just came out with the Inverness - a nice round body 20 gauge O/U you might want to add to your stable of 20's.
http://www.csmcspecials.com/product_p/inverness.htm