Yeah the follow up killing shot if necessary at close range wouldn't matter but a second shot if needed should be the same bullet/ load. I always used Pyrodex loose and pellets with both my 54 and 50. I never tried any other propellant and from what I understand the Pyrodex is one that leaves the most fouling. I just hate to switch since I have quite a bit of both forms. I understand the BH209 is cleaner. What are the pros and cons with respect to a comparison with Pyrodex.