I'm getting a 3" hole average at 100 yards with SST's in my 12 ga. H&R USH. When I first bought the gun, I tried the Lightfield Commander IDS. I couldn't get them any better than 6" at 100 yards. Every gun is different, just try as many differant rounds as the pocket book can handle and you'll find what the gun likes to eat. I agree with the ambulance jockey about the Remington's. I had an 870 12ga. and it couldn't keep them any tighter than 8" at 50 yards.