Thanks, that a good article.
And, it is essentially very accurate.
I could pick nits about the "patchbox". Many historians claim no evidence has been found that patches were actually kept in these and that they actually were, more likely, used to hold tools like a worm for pulling patches or extra flints. Some didn't have patchboxes but only a hole, about the size of a silver dollar, which was filled with tallow for patch lubing.
I will argue with his statement about calibers on the various periods of rifles. The transitionals were more likely in the .45 caliber range. Builders knew lead was scarce and heavy to carry. They also knew a .45 would bring down an indian or Redcoat or whitetail deer just fine and big calibers were not necessary.
That same, big caliber, myth applies to Jaegers when, in fact, most were in the .45 to .50 range. A few were found in the .60 to .80 cal. range but they were rare and far from typical.
Still an excellent article, I'm saving it.
BTW, I knew Joe Kindig. Special person.