Anybody have any positive experience w/ above? Wondering if anyone has tried sabots in them or any of the bp replacements on the market. thanks.

I doubt it, because such a weapon generally can't be used in the muzzlerloader seasons due to having a breech that can be opened, making it technically NOT a muzzleloader.............

It seems to me that the people who are using substitute powders and sabotted projectiles, etc., are not much interested in traditional guns such asSharps percussion models orsidelock muzzleloaders.

Actually, they are legal in many states for m/l season. I live in the boondocks and black powder would be a problem getting. I can't find any info on the rate of twist on them, so was looking at other possibilities. I used to compete w/ patched round ball and took 7 deer w/ a .54 Bridger Hawken built by Dale Weiss in Pa. It weighed 11 1/2 lbs. I also had a couple of Jack Garners rifles, one of which was a semi custom .32 for squirrel hunting that I used to take over 70 in one season. All of which I had to give up due to bad shoulder.