+ Reply to Thread
Results 1 to 5 of 5

Thread: 1903 field test bolt?

Click here to increase the font size Click here to reduce the font size
  1. #1
    Member brian1's Avatar
    Join Date
    Jan 2018
    Last On
    04-09-2021 @ 10:45 PM
    Location
    NH
    Posts
    12
    Local Date
    05-08-2021
    Local Time
    03:57 AM

    1903 field test bolt?

    In going through my Dad's effects, I came across a 1903 test bolt. It was in a package marked "Packed October 1954" and was inside multiple layers of long term storage wrappings. Inside, the bolt was heavily coated with a thick, black, sticky grease. Once I got all that wiped off, the thing is, of course, like the day it was made. Now that I've seen it, I'm pretty sure I had seen another one like it, without all the long term storage wrappings and grease, somewhere in my Dad's stuff, but I'm not sure where it is right now.

    I'm wondering what this is for and if it's of any value to anyone. Like a go-no gauge for when a rifle was issued or at a match?

    The outer wrapper had a label I was able to salvage, and it says:
    J012-55-20656
    BOLT, FIELD TEST
    5520656
    METHOD I
    PACKED OCT. 1954 RIA

    I assume the RIA is Rock Island Armory

    There was another label between the outer cloth-based wrapping and the inner paper-based wrapping that said the same thing.

    The bolt is also etched:
    U.S. RIFLE CAL. .30 M1903
    FIELD TEST BOLT
    G-20656 ORD. DEPT. U.S.iconA.
    W&S

    Near the bolt head is etched: MIN. .509







    Attached Thumbnails Click image for larger version

Name:	Img_7454.jpg‎
Views:	189
Size:	1.89 MB
ID:	116400   Click image for larger version

Name:	Img_7455.jpg‎
Views:	190
Size:	1.19 MB
ID:	116401  

  2. Thank You to brian1 For This Useful Post:


  3. # ADS
    Friends and Sponsors
    Join Date
    October 2006
    Location
    Milsurps.Com
    Posts
    All Threads
    Banner AD Space Available - Click HERE to Inquire LIMITED TIME OFFER FROM THE AMERICAN GUNSMITHING INSTITUTE: Get Immediate Online Access To AGI's NEW Armorer's Course for Glock Pistols, Covering Every Generation of Glocks, Including the Latest Model 42/43 and Double Stack Pistols for ONLY $7.00! Brian Dick ... BDL Ltd. - Specializing in British and Commonwealth weapons Chuck in Denver ... Buy-Sell-Trade .. Guns, Cars Motorcycles Your source for the finest in High Power Competition Gear. Here at T-bones Shipwrighting we specialise in vintage service rifle: re-barrelling, bedding, repairs, modifications and accurizing. We also provide importation services for firearms, parts and weapons, for both private or commercial businesses.
     

  4. #2
    Member MasterChief's Avatar
    Join Date
    Mar 2009
    Last On
    Yesterday @ 09:11 PM
    Location
    San Joaquin Valley, California
    Age
    71
    Posts
    64
    Local Date
    05-08-2021
    Local Time
    02:57 AM
    Wonder if it's for a secondary check on a receiver that fails max headspace measurement? In effect a "known-good" bolt...

  5. Avoid Ads - Become a Contributing Member - Click HERE
  6. #3
    Really Senior Member Wineman's Avatar
    Join Date
    Aug 2009
    Last On
    Yesterday @ 10:23 PM
    Posts
    230
    Local Date
    05-08-2021
    Local Time
    12:57 AM
    Nice to have a headspace gauge that did not need you to take apart a bolt and see if it passes. An interesting concept, great for volume checks: pull bolt, test with Field Bolt, reject or pass, next...

    Dave

  7. #4
    Really Senior Member RCS's Avatar
    Join Date
    Mar 2009
    Last On
    Yesterday @ 09:26 PM
    Location
    USA
    Posts
    3,562
    Local Date
    05-08-2021
    Local Time
    02:57 AM
    I looked up the FIELD TEST BOLT in my TM 9-1270 ordnance manual on M1903 rifles. "test bolt is used in conjunction with
    headspace gages to determine whether the chamber, bolt, lug seats in the receiver, or all of these, are worn beyond
    serviceability".

  8. Thank You to RCS For This Useful Post:


  9. #5
    Really Senior Member Calif-Steve's Avatar
    Join Date
    Mar 2009
    Last On
    05-06-2021 @ 12:27 AM
    Posts
    2,466
    Local Date
    05-08-2021
    Local Time
    02:57 AM
    RCS is correct. Depot would use them with all of the Headspace gages to figure out if barrel, receiver, or bolt were good/no good. Handy tool. They used to be around and I bought 2 of them. Not expensive but fun.

+ Reply to Thread

Similar Threads

  1. 1903 bolt id..
    By blazermark in forum M1903/1903A3/A4 Springfield Rifle
    Replies: 2
    Last Post: 03-09-2015, 05:28 PM
  2. Carbine field test bolt
    By bobg in forum M1/M2 Carbine
    Replies: 2
    Last Post: 08-25-2013, 09:26 PM
  3. Remington 1903 closes on field gauge
    By Calfed in forum M1903/1903A3/A4 Springfield Rifle
    Replies: 20
    Last Post: 03-07-2010, 12:57 PM
  4. 1903 bolt safe?
    By Mickey Christian in forum M1903/1903A3/A4 Springfield Rifle
    Replies: 1
    Last Post: 02-21-2010, 07:59 PM
  5. 1903 Remington bolt?
    By chuck in idaho in forum M1903/1903A3/A4 Springfield Rifle
    Replies: 3
    Last Post: 07-12-2009, 12:27 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts