The cartridge is used for proof testing of 20mm weapons and barrels during manufacture and repair. The cartridge is a solid steel projectile, under cut behind the ogive to control projectile weight, for developing high chamber pressure. The cartridge is identified by a stannic-stained (silvered) cartridge case.

The -A1 upgrade had a Mack ENDT-673, a 673 cu in (11.0 L) turbocharged inline 6 cylinder diesel engine developing 210 hp (160 kW) at 2100 rpm. The -A2 upgrade had a Continental LDS-465-1A, a 478 cu in (7.8 L) turbocharged inline 6 cylinder developing 175 hp (130 kW) at 2100 rpm.

They contain a substantial HE main charge and consequently have relatively thin to medium body-wall thickness. Their fragmentation effect results from fracture of the body wall on detonation of the main charge. They are or may be fitted with a variety of fuzes for effective use in engaging different types of targets.

Name: 20mm (20 x 102) HPT Cartridges M54A1. Hazard Class: 1.4S. DODIC/NSN: AA20/1305-01-448-9275. Part Numbering: 7258858 Cartridge. Description: High Pressure test ammunition for M39, M61 Vulcan, and M168 Weapon Systems. Brass M103 20 x 102mm case primed with M52 electric primer. Standard pack is 100 linked rounds per M548 Ammo can.

Cartridge, 37mm HE-T, SD, M54A1. Tetryl. Description The base of the projectile is very thick (over 1 inch) and is tapered for streamlining purposes. The cavity for the shell-destroying tracer is machined into this h.

INERT 20mm Vulcan M54A1 HPT (High Pressure Test) round with polished case. 20x102 Approx length 6.5", Approx width 1". Pictures are stock images of our inventory.

Proof, M54A1: Projectile: steel, purple, 1 copper driving band Projectile Markings: (black ink) 20 MM HPT M54 A1 LC-SP-716 Driving Band Markings: GLN-1-4-68 M54A1: Case: brass, choke crimp Markings: (black ink) 20MM M103 RNO 1-932-68: Primer: electric, flat, brass, ring crimp, red annulus: Headstamp

Burster,Projectile- M54A1. Burster,Projectile- M54A1; Specification, standards and handbooks; Ammunition lot numbering; Explosive loading radiographic requirements; Table II. Requirement / verification cross-reference matrix; Comp B5 explosive composition; Table IV. First article inspection; Classification of characteristics

There are two main variants of the truck, the M54A1 (fitted with a Mack diesel engine) and the M54A2 (fitted with a Continental multifuel turbocharged engine). Other than the different engine types, the two trucks are identical.

20mm High Pressure Test for testing of the bolt and other features on the M60 Vulcan. Can offer HPT in other calibers. Buy 20mm M54A1 High Pressure Test (HPT) Round Ammunition. 20mm High Pressure...