I don't have a huntsman but do own a knight wolverine which, like the huntsman, seems to shoot good groups with anything I feed it. However, just a word of warning. I shot 90 grains of pyrodex RS in the past and a 300 grain hornady XTP bullet or a 302 grain remington jacketed hollow point when they used to make them. I got absolutely incredible groups. But, I shot 3 deer with these bullets, within 30-40 yds and didn't find any of them. The advice I received was to go with a 100% lead bullet due to the velocity of the typical muzzleloader. I switched to a precision rifle 240 grain dead center bullet (
www.prbullet.com) with 80 grains of 777 powder. The results were amazing. I shot a buck last year and he simply fell over and died. No tracking, no nothing. I recovered the bullet and it mushroomed to twice its size and maintained its mass. The dead center is a polymer tipped bullet and the expansion was nothing less than awesome. I'm not too familiar with the SST but think it has a plastic/polymer tip so you might get the same results. Hope this helps someone. I was literally going to give up muzzleloading after my 1st results. Now I'm back in the game for good. Take care, Greg