They are called muzzleloaders simply because the powder and bullet are loaded from the muzzle end of the gun, Here is a page from WIKIpedia that may help answer.http://en.wikipedia.org/wiki/Muzzleloader
Yes
No
Cabella's
That depends on the make and model.
A traditional inline muzzleloader can be equipped with a mechanical safety. This safety feature helps prevent accidental discharge of the firearm by blocking the firing mechanism until the shooter is ready to fire.
Unknown
100-400
removing the breech plug
2
rust
One can purchase a CVA muzzleloader from the official website of CVA. These hunting equipment costs between 100-600 dollars and comes in numerous specifications.
Know Your Muzzleloader. Primitive hunting arms include the muzzleloader ... Black powder is the onlytype of powder that should be used in muzzleloaders