Been a long time between posts for me. I picked up a 1905 single shot rifle and I'm still working it out. The condition is very good on the outside, a patina for the finish but it's even. Stock is fine, no marks or sanding. The rear sight is adjustable by means of a wheel, located vertically. The bore is shiny with some pitting. It was leaded up but my friend, a shade tree gunsmith, put mercury in the bore and removed a lot of lead so I can see the rifling. It's got a perch belly stock with a "Swedish' butt plate.

I read where I should shoot only CB caps, but I've shot it the few times I shot it with SV ammo. Should I be concerned about this?