27 October 1977
27 June 1972
PROJECTILE, 20MM, TARGET PRACTICE, M55A3 and M55A3Bl
This specification is approved for use by all Departments and
Agencies of the Department of Defense.
1.1 Scope. This specification covers two models of 20mm target practice
projectiles manufactured from bar stock; M55A3 with machined bodies and
M55A3B1 with impact extruded bodies. (see 6.1)
2.1 Issues of documents. The following documents of the issue in effect on
date of invitation for bids, or request for proposal, form a part of this
specification to the extent specified herein.
- Cleaning Methods and Pretreatment of Ferrous
Surfaces for Organic Coatings
- Ammunition, General Specification for
- Sampling Procedures and Tables for Inspection
- Quality Assurance Terms and Definitions
Beneficial comments (recommendations, additions, deletions) and any
pertinent data which may be of use in improving this document should be
addressed to: Commander, US Army Armament Research and Development Command,
ATTN: DRDAR-TST-S, Dover, New Jersey 07801 by using the self-addressed
Standardization Document Improvement Proposal (DD Form 1426) appearing at
the end of this document or by letter.