Still Searching..Ross Mark III Barrell Threads specs...?????

[wjw]

DocAv

Just checked a take off drilled barrel stub from a 1910 and the thread is 10 TPI square, right hand. Major diameter is 1.105, minor diameter is 1.065. Barrel shank length is 0.695, with no relief groove and barrel outside diameter is 1.305. Used the remainder of the barrel on a 1905 by boring out the barrel stub and silver soldering the barrel into the stub as could not cut the 1905 threads on my lathe (approximately 3TPI buttress thread) which has worked well.

Bill