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USGI M14 barrel data base - 7790190

This is a discussion on USGI M14 barrel data base - 7790190 within the Reference forums, part of the M14 M1A Forum category; Thanks, rsmstw....


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Old October 23rd, 2007, 01:35 AM   #16
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Thanks, rsmstw.

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Old October 23rd, 2007, 09:16 PM   #17
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I may be too late..
Mine is
H R 7790190 1-63 ak

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Old October 24th, 2007, 02:43 AM   #18
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Thanks, MarchorDie.

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Old October 27th, 2007, 12:29 AM   #19
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Glad to see this took off so well, maybe I do have some good ideas from time to time....lol.

http://www.m14firinglineforum.com/up...ad.php?t=46995

If this info goes into a book, maybe I can get an honorable mention?:)

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Old October 27th, 2007, 06:39 AM   #20
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jariggs, I appreciate the idea to post this information for M14 fans. I already had the information in the book but I've changed the relevant paragaph to this:

"Military service barrels are made of molybdenum-chromium alloy steel. M14 rack grade barrels are chromium plated, standard (lightweight) contour and have a 1:12 twist rate. There were several manufacturers of USGI M14 chromium plated barrels. The following is a list of the manufacturers along with the barrel identifying markings and observed dates of production:

Harrington & Richardson (H-R) - May 1960 to February 1964

Olin-Mathieson Chemical Corporation (Winchester) - February 1961 to May 1964

Saco-Lowell / Maremont (SAK, 26978) - February 1969 to May 1983

Springfield Armory (S A) - November 1959 to October 1967

Thompson-Ramo-Wooldridge (TRW) - January 1963 to April 1966"

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Old October 28th, 2007, 05:17 AM   #21
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Quote:
Originally Posted by Different View Post
jariggs, I appreciate the idea to post this information for M14 fans. I already had the information in the book but I've changed the relevant paragaph to this:

"Military service barrels are made of molybdenum-chromium alloy steel. M14 rack grade barrels are chromium plated, standard (lightweight) contour and have a 1:12 twist rate. There were several manufacturers of USGI M14 chromium plated barrels. The following is a list of the manufacturers along with the barrel identifying markings and observed dates of production:

Harrington & Richardson (H-R) - May 1960 to February 1964

Olin-Mathieson Chemical Corporation (Winchester) - February 1961 to May 1964

Saco-Lowell / Maremont (SAK, 26978) - February 1969 to May 1983

Springfield Armory (S A) - November 1959 to October 1967

Thompson-Ramo-Wooldridge (TRW) - January 1963 to April 1966"
Outstanding info Different. BTW, you do know I was kidding with you in my above post right?...lol. I do like the way you put it together, it will be an excellent reference.

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Old October 28th, 2007, 07:50 AM   #22
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Yes, no problem.

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Old November 1st, 2007, 01:33 PM   #23
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TRW 7790190 1 63 BB.
What does the BB represent?
Thanks for sharing your great work!

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Old November 1st, 2007, 04:54 PM   #24
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material lot number (identification code)

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Old November 12th, 2007, 09:35 PM   #25
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From my most recent M1A purchase...Winchester 3/62.

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Old November 15th, 2007, 06:10 PM   #26
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SA F7790190 10 61 MD 32

on SAI 0489xx

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Old November 15th, 2007, 07:31 PM   #27
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Thank you, Gentlemen.

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Old November 18th, 2007, 08:13 PM   #28
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SAK 8-69-E-4692
Winchester APR 63

two more for the list

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Old November 19th, 2007, 02:53 AM   #29
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Got it, thanks.

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Old November 20th, 2007, 11:02 AM   #30
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H R 5-62-X on Fulton Receiver

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