Does anyone out there have any experience with this gun? I recently purchased one (50 cal. Magnum not the PRO) but have yet to buy any bullets, powder or anything of that sort to go with it. As it is my first ever muzzleloader, I have some questions about shooting it. What powder (pyrodex or 777) and sabot combinations (shockwaves, powerbelts, etc.) seem to perform the best out of the Optima. Thanks.