These and all Colt Dragoons will handle 50 grains of ff or fff black. I’ve used pyrodex 30 gr pellets in on for good effect. I usually use wonder wad between the powder and a .454 ball. With 40 grains of powder. .35 will make a milder load. The weight of the dragoon is 4lb and2 oz. The 30 or 35 grain load has very mild recoil, but a nice booming voice.
You can find the ASM Dragoons for sale on GB for less than the Uberti models.