Purchased a lymans BP trade rife. Took it out today to shoot. Gave the ole blow down the barrel to make sure no obstructions. Loaded it up and slammed a sabot down the pipe. Percussion cap went on and squeezed the trigger. Just the clap of the cap went off. Loaded another onto it and another clap. Tried 3 more and still no bang. Took my nipple cleaner and tried to probe. Now I gotta take the nipple off and see. However if all looks good and it won’t fire what’s the way to vet a polymer tipped bullet out? Can I unthread the back and push the load through? Never tire one apart before. I used FFG powder and I’m sure it’s down by the hole.