TC, CVA, Traditions, pick one in 50 cal. Use Black Horn powder and Remington 209 ML primers. Work your loads up starting with 90 grs volume measured. Most likely you will find 100 gr loads give good accuracy. There are many bullets, just try 250 and 290 gr in a sabot construction and see which weight shoots best. I like a faster bullet so 250 gr works for me.