Guerrilla Gunsmithing # 3 - 7.65 Luger Colt Gov't Model Barrel

[sheepherder]

Originally Posted by Neil Young

Postino:
I may have mentioned this before, but I don't think so--I worked for International Paper for 36 years...

There was an Int'l Paper mill in Tonawanda (I was at Niagara Falls K-C mill) that shut down about 10 - 12 years before ours did, back in '81...We picked up a bunch of people from that mill...

Originally Posted by Neil Young

Please tell me how you lined up the barrel to be perfectly true with the reamer and the end mill...

Here's a related Gonzo alignment solution...

I needed to cut throats on Luger, Mauser, P-38, M1911, and Star barrels that I'd relined, but my pneumatic die grinder w/Carbide burr cut way too fast and way too much...One little twitch, and I'd trash a lot of work...

So I need to cut it in a secure fixture...Like my rotary indexing head...But in one of those inexplicable instances, the centerline of my lathe spindle was .797" above the bed...Some obscure measurement (not Metric or Yankee) that of course nothing is available to use as a shim...

So I had to make one...3" x 6" x 1" 6061 T6 aluminum plate milled down to .797"...

Here's a shot of the indexing head bolted to the bed, with a 8.8mm ground steel rod in the chuck, bumped up close to another 8.8mm steel rod in the lathe chuck...and for all intents and purposes...Centered...

(You can just make out the line where the two rods butt up)

To cut the throats, I have to turn it 35º (or 55º, however you look at it) and since it is right-handed, I have to use a mirror to watch the cut...Otherwise, I can't turn the rotary head...