If there's any trap clubs around you, they will probably have plenty of once fired hulls for sale. Maybe even give them to you. 20's are a little harder to come by than 12's simply because more 12 gauge shooters. Remington hulls are probably the best, then win AAHS and Federal. But they're all good hulls for reloading. Just follow the reciepes. I've bought several thousand 12s and 20s over the net' and even with shipping it was pretty cheap..2000 Win AA 20's shipped for 35 bucks..but that was a couple years ago. Shotshell shooting and reloading is good fun..
