Looking for advise for purchasing a used shotgun for routine Skeet/Trap shooting.. Auto, Pump, barrel length, 12, 20 or 410 gauge, Brands to buy yes, Brands to buy No. Please don't bury me in technical specs, just want a fun reasonably priced shotgun for hobby shooting. Don't have near 50 posts for the Classified section, so I'll search at Gun Shows or through my local friends. Thank you in advance....