I just realized what a stupid question the effectiveness of3/1000s of an inch was hahaha.

Here's my Bobcat'sload I've settled into for now:

90gr Pyrodex RS
Hornady .49 roundball
.15 precut pillow ticking patch
Bore Butter for lube
and CCI Magnum #11 primers.

I haven't shot any Pyrodex P yet, only the RS. If you can get equal or better performace with less of a charge I am definitely interested. Call me fragile but a range session takes a toll on me (mostly my cheek)with the load up there.