It has been almost 2 years since I started playing with this thing. I have tried every load and powder and all boolits from 245 to 330 gr's. I was hoping to get something reliable for the running deer and standing deer shoot at 100 yd's.
I keep reading here and the levergun forum to use over size boolits but have no idea how. Even tried real soft boolits and every other alloy I could make.
I made molds for 3 boolits, .432", 433" and .434". Also lapped 3 Lee size dies. I find the largest boolit that will chamber is .4335 and the groove to groove size is .434". Even bump up will not work to make this *** shoot.
I have one 250 gr boolit that will shoot at 50 yd's, sometimes going into 1 ragged hole but only with 7 gr's of Unique. However 5" at 100 yd's is the best it will do. Every other boolit will range from a minimum of 5" to 8" or more at 100. Once in a great while something like a group appears but can not be duplicated.
I have also done extensive work on the rifle, no tight spots in the bore, it has no barrel band, forearm floats, magazine tube floats in the reciever, etc.
Anyway, here are the best I have done at 100 along with a decent 50 yd group.