Mine said 44 mag… but it also had a full vent rib and front bead. I don’t know why TC didn’t have it labeled as a 44 / 410 but it was able to chamber 3’ 410 shells and had a choke. If you called TC and asked them questions they told you it was the “44/410.” Probably a legal issue it wasn’t labeled that way.

As stated above the main difference, besides the fact that the 44’s are loose in the chamber, is that the rifleing was made for the 44 cal bullet. As for shooing 44’s in it, with as much legal problems as the firearm industry has had, I think there would have been a recall on anything that could have been even remotely dangerous to the shooter. I think TC changed the name, rifleing, and marketing of the barrels name to try to sell more of them. But that is just my understanding of the history.