I have a Skif A-3000 Anics Pistol. The problem is jamming. I have been firing Exact Diablo 1.77 pellets, I have found that these are the only ones I have tried that do not move in the mag, I have set the prodder so the pellet is as far forward as they well go in the mag, but they keep jamming, I have bought 4 more mag s and they are the same. With out spending a tidy bit on all the different pellets, can someone point me in the right direction? On what pellets I need.