Pitchy, I watched your video, looked like you had fun to me. Tell you though, I had to turn my Marlin's rear sight around some years ago to get it farther away from my old eyes. It was too close to my shootin eye which made it blurry. I blew the first stage of last months match at my club with 4 rifle misses, that Marlin usually don't miss. I cleaned it real good but need to put it on paper to see what's going on. Put your loads on some cardboard or at least put some behind your steel so you can see where your misses are. I've got a Chappy NWMP carbine in .45-60, nice rifle once I got the bugs out. Keep having fun.