My thread on this topic disappeared. After reading the suggestions I decided to do a chamber cast. I found that the chamber length is 2.045, diameter ran from .4165 to .345. The cartridge that I was using expanded from .4165 to .331. It is not sealing. The two bullits I was using were a Hoch 198 gr 1.033 length diameter is .319,.317, .316, .315, .314. The other was a Pioneer and it is too big with a base of .321. The rifle has a measurement across the lands of..321 and a groove diameter of .319.

Not sure how across the lands could be .321 and then having the grooves much smaller. If you happen to have a guage pin to determine the size of the bore please do so and share it as the grooves should be in the neighborhood of plus 8 thous., larger and 4 per side unless I am totaly missing out on something being shared here. 

JLouis