The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > The Smithy

Reply
 
Thread Tools
Old March 2, 2011, 04:17 PM   #1
Ervin
Junior member
 
Join Date: October 9, 2009
Posts: 125
M1 serial number depth problem

Ive been trying to stencil the lettering on the M1's serial number stamp with a China marker but unfortunantely it wasnt deep enough to retain the white wax. I've checked with gunsmiths and engravers on who would be able to fix this for me and they really know where to turn.

needs to look like this:




but the lower right corner of my stamp was faintly stamped and isnt deep enough.
Ervin is offline  
Old March 2, 2011, 04:39 PM   #2
gyvel
Senior Member
 
Join Date: August 30, 2009
Location: Northern AZ
Posts: 5,196
If you are referring to "deepening" the stamped numbers, DON'T.

Get a white Phano china marker pencil and use a little WD-40 to thin out the wax. You'll have better results with it filling the numbers.
gyvel is offline  
Old March 2, 2011, 10:04 PM   #3
James K
Staff
 
Join Date: March 17, 1999
Posts: 19,286
Dampened white chalk will also work. Trying to recut the numbers is likely not feasible; those receivers run RC60 which is pretty darned hard.

Jim
__________________
Jim K
James K is offline  
Old March 3, 2011, 08:41 AM   #4
Sport45
Senior Member
 
Join Date: May 25, 1999
Location: Too close to Houston
Posts: 4,050
If that's your serial number I wouldn't touch it. I might not even breath on it....

Not just a neat number, but if I read the charts right, that one was made June '44. Maybe even D-Day.
__________________
Proud member of the NRA and Texas State Rifle Association. Registered and active voter.

Last edited by Sport45; March 3, 2011 at 08:51 AM.
Sport45 is offline  
Old March 3, 2011, 12:54 PM   #5
Unclenick
Staff
 
Join Date: March 4, 2005
Location: Ohio
Posts: 10,207
Your serial number was originally stamped in before heat treatment of the receiver. I've modified Garand receivers for M1A type half-minute windage adjustments, and found drilling a hole for the detent had to be done with a tungsten carbide bit (the surface was so hard it quickly dulled a standard high speed bit). Such a surface is too hard to be further impressed by impact without risk of damage.

That leaves you with cutting, which could be done with a super high speed glass engraving type rotary air tool. Those tiny diameter tools can run up to a mind-blowing 400,000 rpm or so, but to keep control of one and avoid the risk of accidentally illegally altering your serial number, it would likely have to be handled by an expert engraver with a pantograph or other tool that gives him good control of it.

As the others have said, it would be a bad idea to mess with what's there.

I have done permanent marking of windage and elevation graduations and of maker and serial numbers (red for "Winchester") before. The method I used was to first remove all embedded oil in the Parkerizing by soaking the receiver in strong solvent degreasers for a couple of days. Raw, oil-free Parkerizing gives paint a good toehold. At that time I picked up some small cans of Pettit two-part colored epoxy paint from a local model hobby shop that I mix in small quantities as needed. If you only want white, though, I see no reason single-part white appliance epoxy wouldn't work just as well if you give it enough time to harden. I used sharpened toothpicks as the applicators, and Q-tips and toluene to remove excess. When I got a bad smear on a character, I wiped it clear and started over. It took more than one try on some characters, and working with magnifiers, but the result is very clear and permanent.

Before you apply rust inhibiting oil to the Parkerizing, the epoxy has to harden. I pulled a loose Baggy over the ones I worked on, using a rubber band to tighten the bag mouths over the barrels and let them set for a couple of weeks.

Afterward the epoxy hardened, I applied LPS-2, wiped off the excess with a rag, then immediately followed that with LPS-3 that I allowed to sit for ten or fifteen minutes before wiping off the excess. The thinner LPS-2 penetrates well, and the thicker, waxy LPS-3 is more permanent protection.
__________________
Gunsite Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Rifle Instructor
NRA Benefactor Member
Unclenick is offline  
Old March 3, 2011, 02:18 PM   #6
Bill DeShivs
Senior Member
 
Join Date: April 7, 2006
Posts: 7,047
It doesn't need "fixing." That is the way the gun was made.
__________________
Bill DeShivs
www.billdeshivs.com
Bill DeShivs is offline  
Old March 4, 2011, 11:02 PM   #7
James K
Staff
 
Join Date: March 17, 1999
Posts: 19,286
I don't think Ervin has number 3000000, he is just saying that he wants his rifle serial number to look as deep and clear as the one in the picture, whcih might be hard to do especially if the receiver has been ground/buffed to remove rust, as many rebuilds were, leaving shallow markings.

Jim
__________________
Jim K
James K is offline  
Old March 5, 2011, 01:03 AM   #8
T. O'Heir
Senior Member
 
Join Date: February 13, 2002
Location: Canada
Posts: 3,172
White outlining the assorted stampings is a daft peace time military thing. However, don't even think about trying to make a stamp deeper. Lose the wax pencil(sounds like it's too hard anyway) and use either paint or white out.
__________________
Spelling and grammar count!
T. O'Heir is offline  
Old March 5, 2011, 01:38 AM   #9
Sport45
Senior Member
 
Join Date: May 25, 1999
Location: Too close to Houston
Posts: 4,050
Quote:
I don't think Ervin has number 3000000,
Yeah, I realized that after I checked the picture source and saw it was nps.gov.

Should have credited the National Parks Service as owning the image when he linked to it?
__________________
Proud member of the NRA and Texas State Rifle Association. Registered and active voter.
Sport45 is offline  
Old March 5, 2011, 09:32 PM   #10
James K
Staff
 
Join Date: March 17, 1999
Posts: 19,286
FWIW, I never saw markings painted in the military and AFAIK it was prohibited, as was painting anything on the metal. (Rack numbers were painted on the stocks, not on the receivers.) Painting or filling markings with white material is done mainly by collectors so markings will show up in photographs.

Jim
__________________
Jim K
James K is offline  
Old March 7, 2011, 08:32 PM   #11
Unclenick
Staff
 
Join Date: March 4, 2005
Location: Ohio
Posts: 10,207
A lot of match shooters have done it to make it easier to copy the serial number onto a score card in a hurry or to see the sight graduations quickly. Don't recall the rules objecting, but, like you, I don't think there's anything original about the practice.
__________________
Gunsite Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Rifle Instructor
NRA Benefactor Member
Unclenick is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 10:54 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.07935 seconds with 9 queries