Had one of the H&R Trapdoor Carbines. The sights were nothing like the originals, and the rifling was a modern style. It shot very well with the Lyman 385 grain cast bullets loaded with Unique powder. The same load in an original is not accurate at all, but then again the rifling is completely different. Had a lot of fun with it back in the 70s, but then I bought my first real Trapdoor and never looked back. Only thing is that the real Trapdoors require the old style ammunition to shoot like they were made to.Right now I have a Marlin 1895 first or second year of production and a Ruger #1. I had and sold off a H&R officers model trap door. I just loaded up about 100 rounds in new Starline brass. Just waiting for the weather to get a little warmer to get to the range.