Examination of Unfired 85mm, API-T Complete Round of Soviet Ammunition, Mod. UBZR-365K FMAM 2313

Abstract

A technical examination, including preparation of photographs, dimensioned drawings, a complete round drawing, chemical analysis of explosive charges, and metallurgical examination of the projectile and cartridge case, was conducted on a loaded and fuzed complete round of Soviet 85-mm API-T ammunition. The round consisted of a base-fuzed, uncapped armor-piercing projectile with tracer, assembled in a primer brass cartridge case. The projectile was loaded with a high explosive charge of RDX, Al, and montan wax. The cartridge case contained an upper closing cup, cylindrical spacer, lower closing cup, coil of soft lead wire, and a bagged propellant charge with igniter charge in a pocket pad forming the base of the bag. A short type Soviet standard KB-4 primer was assembled in the center of the cartridge case head. The propellant was in the form of multi-perforated cylindrical grains which averaged 0.2489 in. in OD and 0.630 in. in length.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1953
Accession Number
AD0008882

Entities

People

  • A. B. Schilling

Organizations

  • Picatinny Arsenal

Tags

DTIC Thesaurus Topics

  • Ammunition
  • Artillery Ammunition
  • Assembly
  • Bursting Charges
  • Cartridge Cases
  • Chemical Analysis
  • Explosive Charges
  • Explosives
  • Lead Wires
  • Materials Laboratories
  • Munitions
  • Ordnance Laboratories
  • Projectiles
  • Propellants
  • Propelling Charges
  • Rotating Bands
  • Test And Evaluation

Readers

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  • ballistics.