The original Spencer post said something like "when I want to shoot a lever action rifle slowly, I use the Spencer". I have only had it out for one range session, but it was a lot of fun. It is in the 56-Spencer centerfire caliber.
50-yard with commercial BP ammo. Haven't work up a load specifically for my rifle yet.
The Spencer manual of arms is slow...half cock, work lever smartly and hope you had a good feed onto the carrier, otherwise wiggle it a little and close the lever, then full cock, then shoot. The Henry and later guns are just Lever-Shoot-Lever-Shoot, etc.
Back to the Henry...
I talked to Taylor's and they show the rifle by SN to be a 44-40. So the error in caliber goes all the way back to the factory. They didn't have one in 44-40 to swap with me, so directed me to the retailer.
I called them (Elk Country Arms in PA) and told them what had happened. Got a call back today and I agreed that I could live with the rifle and avoid the hassle and expense of sending it back for a full refund (which they did offer) for a $100 partial refund. I can totally live with that.
So now I have a Taylor's 1860 Henry in caliber .45 Colt with charcoal blue finish that "matches" my Schofield revolver and others (instead of one in .44-40 to match a Ruger Vaquero, Colt SAA Sheriff's Model or Colt New Service).
Rob