A Determination of the Distribution of Chromium Plate in the Bores of Small Arms Barrels

reportActive / Technical Report | Accession Number: AD0234926 | Open PDF

Abstract:

An investigation was made to develop a method for the determination of the distribution of chromium plate in the bores of small arms barrels. Barrels of various calibers were chromium plated according to Springfield Armory procedures. These barrels were then sectioned and the chromium thickness was measured at the lands and grooves. Graphs were plotted of groove chromium thickness versus land chromium thickness for the various barrels. Ratios of land-to-groove chromium plating thicknesses have been established for calibers 0.30, 0.45, 0.50, 20mm, and 30mm barrel bores. These ratios apply to barrel bores which have been chromium plated under existing plating procedures used at Springfield Armory. Procedures are described and results discussed.

Author(s):
Spivak, M. S.
Author Organization(s):
SPRINGFIELD ARMORY MA
Descriptive Note:
Technical rept.
Pagination:
0022

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
SA-TR18-1070, RIA-77-U83
Monitor Series:
TR18-1070, 77-U83, SA
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5_Command and Control; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support; JCA_5.2_Understand; JCA_6.4.1_Secure Information Exchange
Communities of Interest:
Weapons Technologies
Descriptor(s):
*CHROMIUM ALLOYS, *PLATING, *GUN BARREL LINERS, PROCESSING, MANUFACTURING, THICKNESS, SMALL ARMS
Field(s)/Group(s):
Guns
Keyword(s):
30 MM ORDNANCE ITEMS, CAL 30 ORDNANCE ITEMS, CAL 50 ORDNANCE ITEMS, 20 MM ORDNANCE ITEMS
Report Date:
1960 Feb 12