I agree with Stallones however, when I "safey tested" my Manton I used 6 drams because that would have simulated a worst case scenario, that I had accidentally loaded two 3 dram powder charges into one barrel. It's a surprizingly easy mistake to make, in fact I did it once with another sxs ML. Fortunately, I tried to fire the barrel without any charge first.
BTW if you're going to use the gun you might want to invest in a wad puller (I forget the exact name) it's basically a small corkscrew that attaches to the end of your ram rod that you can use to unload your gun. You can find them in the Dixie Gunworks catalogue.
Steve


Approach life like you do a yellow light - RUN IT! (Gail T.)