Well I got the .50 GM LRH sighted in. I took the T/C tang sight off the .45 Hawken GM LRH and put it on the .50 Renegade GM LRH tang. I picked a load of 80 gr of FFg (Goex) and the 300 gr XTP with Harvester green CR sabot. This is a tight bullet for this bore and takes a bit of muscle to get down over the charge. But it shot great. At 50 yds after getting it sighted in I put 3 into a 1" group with the first 2 bullets going through virtually the same hole.
Then I brought the .45 out. This now is the only muzzy without either a scope (inlines) or a peep sight. At least for now. Using the fiber optic sights supplied by GM I managed to get it sighted in and shot about a 1 1/2" group at .50 yds in the bull. This rifle shot a lot better with the peep. So I guess I will be getting a Lyman 57 for it shortly.