Those are percussion cap fired.
A real musket is a smooth bore blunderbuss with a flint fired powder charge. They are hard to find, and for good reason.
But, thanks for your help.
Not true. A musket is a smoothbore long barreled flintlock or percussion gun that can fire either round ball or shot. Not a blunderbuss. Check out Cabela's or any other website that sells black powder arms, they are easy to find and purchase.
You are correct. There are 4 Thompson/Center Hawken flint locks for sale at this time on gunbroker.com.
I bought mine in 1978 in Penn when there was a special deer season for flint lock only rifles.