I have a CVA Optima 209 and I love it other than having to swab my barrel after every shot. When I sighted her in, I swabbed after every shot to ensure accuracy. I have tried to reload without swabbing the barrel several times and the round gets stuck about an half inch from seating everytime. I use .50 cal 240 grain shock waves and I have also tried 200 grain with the same results. Is it gun or should I try a differnt round? Help please.