If you are going to stay with the Powerbelts and jump to the 295grain, I would still stay with 2 pellets of powder. Very few guns shoot accurate with max poder load. My .50 CVA Kodiak Pro loves tge 245gr areotip Powerbelts with 2 pellets of 777 and winchester 209 primers. I was also spraying bullets when I first got into muzzleloading. This forum convinced me that consistent pre-shot routine (cleaning, powder load, bullet weight, seating pressure, etc...) is the only way to get consistent, accurate and repeatable results.

Personally, I would try completely break the gun down and clean it between every shot. Start with a clean, cool, dry barrel ever shot, make sure your load is consistent with consistent pressure and see if the bullet impact becomes consistent.

Powerbelts, I have never had any problems with them or seen any evidence of fragmentation. All but one have been pass-through shots. Many here will tell you the exact opposite. The Powerbelt argument may just be the hottest debate in all of muzzleloading.

Keep us informed.