Artillery Barrel Specs???

sheepherder · 03-09-2009, 08:53 PM

1st pic here is reaming the chamber for 9mm Parabellum, with a Clymer finishing chamber reamer and floating reamer holder. I've determined that I only need to cut another .018" to get my desired headspace.

Clymer recommends high-Sulphur content cutting oil; 1/32" cut at a time; chips blown out between cuts.

2nd pic shows the reamer fully inserted; final cut.

3rd pic is barrel back on receiver w/notch cut and chamber finished. Fully assembled, almost ready to shoot...

...but the barrel still needs the feed ramp milled...

I could shoot it one shot at a time...and stick the cartridges in by hand...but I can wait...

Edit: Pics updated to show how it *should* have been done, rather than the clumsy way I did it.

03-09-2009, 08:53 PM	#17
sheepherder Lifer Lifetime Forum Patron Join Date: Feb 2009 Location: ...on the 'ol Erie Canal... Posts: 8,197 Thanks: 1,416 Thanked 4,462 Times in 2,336 Posts	1st pic here is reaming the chamber for 9mm Parabellum, with a Clymer finishing chamber reamer and floating reamer holder. I've determined that I only need to cut another .018" to get my desired headspace. Clymer recommends high-Sulphur content cutting oil; 1/32" cut at a time; chips blown out between cuts. 2nd pic shows the reamer fully inserted; final cut. 3rd pic is barrel back on receiver w/notch cut and chamber finished. Fully assembled, almost ready to shoot... ...but the barrel still needs the feed ramp milled... I could shoot it one shot at a time...and stick the cartridges in by hand...but I can wait... Edit: Pics updated to show how it should have been done, rather than the clumsy way I did it. Attached Thumbnails Last edited by sheepherder; 03-11-2009 at 05:38 AM.