Have an old greener martini in 22 hornet used parker hale rifling gun was originally 22 rimfire. Had major trouble with this gun first would not hit primer in centre probably my due to conversion done fifty years ago. I brazen some steel on the block finger levers which lifted the block up and now hits it dead centre. Now cases are hard to extract. I used 224 heads they would get stuck in the barrel with five grains of lil gun. Realised it was 223 not 224 can't get any accuracy with 223 heads or 224 six inch groups at 25 yards. If I use anything over thirty grain head keyholes through target sideways any help would be great fully appreciate feel like throwing taking a buzz saw to it
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