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Discussion Starter #1 (Edited)
Let's see if we can determine the date ranges for when USGI standard contour National Match M14 barrels were made. This is for USGI barrels marked with the part number 7791362. What month and year marking do you have on your standard contour National Match barrel? TIA

Springfield Armory (S A)

Dec 62

Thompson-Ramo-Wooldridge (TRW)

Apr 64
May 64
Feb 66
Mar 66

Canadian Arsenals, Ltd. (C A)

Apr 67
Jun 67

Saco-Lowell / Maremont (SAK, 26978)

Aug 65
Jul 69
Oct 69
Jun 72
Jul 72
Oct 72
Nov 72

SGW (OLY, 20084)

Jul 82
Apr 83
Jun 83
Aug 83
 

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Here are a few more 7791362 barrels:

TRW
May 64

Saco-Lowell
Oct 69
Nov 72

Thanks for putting this together.

Cass
 

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Another SAK

Sak 7791362-7-69-8037229
 

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Another Canadian Arsenals April 67

CA7791362 4 67C8549
Also ahs 7-73 elector penceled on the bottom left of the chamber area

Dave P
 

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Discussion Starter #14
Thanks, Dave. I believe the electropenciled AHS 7-73 indicates a depot level rebuild/overhaul.
 

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Discussion Starter #16 (Edited)
Updated

Springfield Armory (S A)

Dec 62

Thompson-Ramo-Wooldridge (TRW)

Apr 64
May 64
Feb 66
Mar 66

Canadian Arsenals, Ltd. (C A)

Apr 67
Jun 67

Saco-Lowell / Maremont (SAK, 26978)

Aug 65
Jul 69
Oct 69
Jun 72
Jul 72
Oct 72
Nov 72
Feb 76
Mar 76
Jun 85

SGW (OLY, 20084)

Jul 82
Apr 83
Jun 83
Aug 83
 
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