I recently found a good deal on some t/c maxi hunter in .54 cal, so I picked up a pack. They are 435 grains, so I figured they would be a a great brush round. However, after the initial tightness of getting it started into the barrel, it loads very easy. It seem like it wouldn't seal, but they shoot okay. I have a knight mk 95. I shoot sabot and don't have the same issue. Is that normal, or is my barrel messed up.