DO NOT USE LOADS I DO/DID, as Zonie will tell you I have this problem with OVER KILL !! :rotf: I started with 20 grs 2f and got it up to 40 thinking thats a safe load. NEVER USE 2 600 balls, this is trickey to try and must be loaded just right or you can blow you and gun up. It did just fine with 1 oz of shot or one PRBand 40 grs of 2f. Even Pedro's Howdy :rotf: is just 25 grs starting out and they arent built in India by who know's who. SO STAY SAFE!! ( I've been known to shoot 5 balls out of my 20/62 underhammer like another one or two on here in stake bustin contest BUT it isnt wise at all, just a 1000 of inch to much between balls and Ka-Boom no head! :shocked2: hey I wonder if thats why they had to put 4" of titanium in my back? :shake: and i hurts 24 hours a day....hope thats enough said. I did get it to shoot point of aim by carefully filling the barrel down so it shoots really well Also be aware they are each hand made so parts are :nono: