More interesting info here. Good thoughts.
These things are not as simple to shoot accurately as I'd assumed. Obviously. But this is great fun.
Thank you for validating my online existence.
"Pest control"? Exactly what "pests" are you shooting that require 300+ FPE?
(I use a .25 cal FX Wildcat PCP air rifle for "pests" up to coyotes. It puts out about 45 FPE at the muzzle. It also shoots 3/8" groups at 50 yards.)
Most guys run when shot at by anything, hit or not. The BP guns have the sparks & smoke effect too - I've thought about this. I think it would add to the scare factor!
(Guys, admit it: How many of you BP revolver shooters have not fantasized about blasting a bad guy at some point? Ever shoot those round balls into ballistic gel? They expand beautifully! I haven't done it myself, just watched the vids.)
I would not expect a modern semi-auto Glock or the like to be able to group better than 12" at 50Y. The barrel floats, it is short, high recoil makes it difficult to get consistency, etc.
I use Wonder Wads and would sure hate to mess with malt-o-meal or the like.
I also realized that while I said 25 grains I haven't seriously target-shot that load. My paper-punching was with 15 and 20 grain loads.
If having the cylinder short-stuffed is bad because 1) the powder can't be compressed fully and/or 2) the bullet has to go through a long length of bad-diameter/unrifled cylinder, these loads may be less accurate.
Also, I have NOT been shaving a ring with the Hornady .375 balls. The .380s from Track of the Wolf are on the way.
I also now have my cool tiny funnels for loading with no spilling, and a capper for more consistent - capping.
I expect much better results next time I punch the paper.