yes
YOu need to see a gunsmith immediately
need a fair price of what it might be worth for an old richland arms 45 cal. black powder rifle with serial no. 2142
You need a lawyer for a current, legal and correct answer.
no
Yes
no.
no
No. No license is required.
Blackpowder guns are exempt from the Gun Control Act of 1963. This is the law that requires a Federal Firearms License (FFL) to send guns by mail. So, no. You don't need FFL to mail black powder guns.
No.
No
Black powder, or a BP substitute such as Pyrodex. NEVER use smokeless powder. For bullets, either a lead bullet made for muzzleloaders, or a muzzleloading sabot and matching bullet. You need to read the owner's manual. If you do not have one, contact CVA thru their website.