[mjlynch71]

I have one of the Ohio Ordnance M2HB barrels, great condition but looks like the start of the tread has a scuff to it. What is the best way to fix it, use a file and clean it up, or a die, if so what size is it. Thanks, Jerod

 

[L999here]

...file first...

Yep...that's the safest way. Use a Swiss needle file first and slowly thread the barrel support onto the barrel to check it out. Check out the threads on the barrel support first...just to be safe. Tried to find my .50 die...cannot remember where I hid it from myself. Believe the size is 1 1/2" X 10 (?). Bought 6-.50 M2HB barrels from guy on GB. 4-bbls were standard US GI and 2-bbls were chrome-lined. All needed the threads chased...a couple I had to use a file first so as not to lose much metal....but all came out OK after the die was used. And then used a bbl extension to make sure all were able to correctly head space.