For first time wanted to shoot .40 cal Hornady pistol bullets so got some harvester sabots specifically for .40 cal., the blue ones. Very hard to start them down muzzle so tried a different loading tip on my short starter. Got it going but then the tip drew sabot and bullet back up so tried another tip that did fine and went down fine with ramrod rest of the way. Subsequent shots I used the third loading tip but still hard to get them started. Two questions: did I hurt the inside of the muzzle when that first sabot and bullet were drawn back up? And can I just shoot .40 cal bullets in the black harvester sabots but which are specified for .45 cal bullets? The blue sabots are definitely thicker. This was in my CVA optima V2. Thank you.