well,, dis-regard my freinds "roundball" and "triple seven" posts from above, they mean well but don't own that kind of rifle. I do.
The Cabelas Hawkin by Investarms/Lyman has a nickle plated bore.(aka;chrome) now it's late and i'm tired,,but i'll tell ya,, for what you think it's worth..535 ball and an ox-yoke .020 prelube patch will get you close,,,thet rifle likes tight!
Put that over 75grs(or a bit more) of a hot swiss 2f/1.5 or T7 2f and you'll begin to see the potential,,,,if you use goex or pyrocrap forget it, you'll never learn and be wasting your money.
Think really tight prb,, and hot powders. I follow Dutch.
p.s. T7 ya old gimp!! I finally went and got new cloth!! want sum?? pm,,,,