[fatboy]

In-Line muzzloaders have a “bolt” like handle to access the primer nipple but it is still a muzzleloader.

[Notthemomma]

Some in-line muzzleloaders have bolts, but mine is break-action. Here’s a good summary of in-line muzzleloaders and supplies, for anyone interested.
http://www.cabelas.com/product/In-Line-Muzzleloaders-Buyers-Guide/532670.uts