I own an older model T/C ThunderHawk inline rifle. I've hunted deer here in Indiana with if for years now. I have a nipple for it that uses the musket cap, but usually just use the #11 nipple and cap. I was wondering if there is a conversion kit available to convert it over to shotshell primers. It would have to include a new "bolt" ... and also of note is that this rifle does not have a removable breach plug... just curious.