My sweet spot when shooting matches with my TC Hawken is .490 balls with dry .015 patch with a few drops of 50/50 simple green and 30 grains of 2F or 3F Hogdon Triple 7. I can shoot pretty much most of a match without a spit patch. I only use black powder with my flintlocks.I've been shooting this rife for several years, it's currently my only bp rifle. I have a couple of questions about what I view as excessive fouling. First my current target load is 60 gr Goex 2f, .015 patch with mink oil and a .495 ball. I can get a couple of shots off before cleaning but it shoots best cleaning between each shot; I definitely clean between shots during a match. I see some of the guys at matches that shoot all day without cleaning between shots.
This fall I was going to take it hunting and was working up loads as large as 90 gr of 2f. It was too much for the rifle, the amount of residual fouling after a shot at 80-90 gr was amazing, it just wouldn't work. So, now I'm considering having the barrel rifling refreshed by Mr. Hoyt for deeper groves. Is there something I've missed here? I've tried multiple patches and lubes but the mink oil patching seems to be the best.