Tuning Pellets getting stuck

I have a brand new wildcat mk3, have only shot it like 3 times with 2-3 mags each time and I’m finding out that sometimes pellets get stuck in the barrel when shooting. I’ve only used the jsb 33.95 so far. I’ve already learned my lesson from double loading, that’s not what’s happening now. I haven’t touched the regulator pressure and stay aware of fill pressure making sure not to drop below regulator pressure.

I just bought the fx chronograph, but haven’t gotten a chance to use it yet.

any suggestions?
 
Well, that's pretty darn strange. If the velocity was so low as to not shoot the pellet free of the barrel, you would not be hitting anywhere near the target. I've shot rifles with no breech seal at all, and they still have plenty of power to send the pellet down range. How is accuracy? Is the pellet stuck in the actual barrel, or the moderator?