I load my .62 Caywood Type "C" with 90gr. FFg and about 1 1/2oz. #6's. I tried a heavier powder charge, but I didn't care for the big blast part of it and figured it wasn't necessary anyway. I also tried heavier shot charges, but 1 1/2oz. patterned just as good as the heavier shot loads in my gun, so I opted for the less shot/higher velocity loading (as long as the patterns are the same, I wanted to keep all the velocity I could get). I also tried 4's, but my .62 liked 6's more (my 12ga. New Englander likes 4's). I plan to try some loads with 3F, becasue I really like the idea of same powder for load and prime (seems more convenient, to me).
I have shot 2 Toms with my New Englander (90gr. FFg and 1 3/8oz. #4) and 1 Tom/1 Jake with an old 11ga. Percussion fowler, but I have not proven my .62 on a Tom yet becasue I just got it last spring. In my 12ga. I use a plastic shot cup, but in my .62 I want to be more PC. I tried paper shot cups, but I just couldn't get any consistency with them. It was probably just me not folding them correctly, but I got frustrated and gave up. :cursing:
So, my .62 loading is an overpowder card, I pre-lubed wad, shot and then 1 o/s card. Based on the turkey patterning target, it looks like the load is only a certain thing to about 25 yards. I plan to try a bit more patterning with 3f and also maybe try some shot buffer (corn meal) as I read that might help.
I used to find patterning my "modern" shotgun was a chore, but every shot with my flinter is fun, so patterning is a good excuse to make smoke. I still have the "first time flinter" stars in my eyes when I shoot. :haha: