It appears that discussions, even a manufacturer's page, people can't agree with one another. Ruger for example. One person says every firearm is live round fired, the next person states that's BS, as he has purchased two Ruger firearms that it was impossible for either firearm to fire, as the ejectors were stuck with burs on both firearms, which would have prevented it.
I listened to the Henry video and I still can't hear him say "every firearm........ "
Firearm manufacturers are similar to politicians. They're going to tell you exactly what they want you to know, not what they know. Similar to rifle scope manufacturers.
Ask a scope manufacturer if they test each and every scope for recoil endurance and then ask them to what force they check them to. They're going to tell you that every scope is tested before being boxed. Function tested, not recoil tested.
Leupold will tell you they recoil test each scope, but the only information they'll give you is something like, 'It's tested to the recoil of a 458Wmag'.
Ask them what the actual force is, and they'll accuse you of being a corporate spy. Ask me how I know this.