With exceptions, I've noticed that most of the guys using FFF use 65-70grs. (sometimes a bit more), whereas those who use FF use 80grs. on average.I bought this gun late last year, and just got a chance to shoot it a couple of weeks ago (had quite a bit going on IN ADDITION to my relocation). Anyway, mine has a 48 inch barrel, and the guy I bought it from said that 80grs. of FF worked best.Well, the load I used when I fired last week was:.600 ball.015 patches pre-cut w/1000 plus lube.80grs. of FFG.Standing off-hand at 25 yards, the first group was low. After I cleaned, my next group was point of aim. Still, it wasn't as tight a pattern as I would like. For example, my Brown Bess will literally tear a ragged hole at 25 yards off-hand, but the group with my .62 last week was about 3 inches. Now, I'm not one of these folks who use a 'light load' for practice, and a separate load for hunting....I like to shoot my 'service load' all the time, and I can accept the accuracy that such a load gives me...even if an ultra light load would shoot tighter. The thing is, I just feel as if I can do better than that 3 inches. The first thing that I'm thinking of doing is switching my patches. Rather than the pre-cut (store bought) patches, I will simply pre-cut them the way I do for my Bess...out of .015 pillow ticking. I tend to get good accuracy with those patches. I will work on the patches before I consider doing ANYTHING else....I definitely don't want to raise the powder charge, but I don't want to lower it either. If I have to lower it, I can see going maybe 70grs. at the lowest.....I will also consider switching to FFF, but I will see how all of this other stuff goes first, and I will keep you all posted.