US caseless small-arms ammo, 1960s?


#1

A friend has contacted me in search of information and illustrations concerning American experiments with caseless small-arms ammunition in the 1960s. Can anyone assist?

Thanks for any help.


#2

This photo might jog a memory? I’m interested in the fourth round from the right:

From left to right: 5.56x45 with Monad bullet, 4.5mm Schirnecker, 9/4mm Kaltmann (development round, with part-metal case), 5.56mm Folded, 5.56mm Hughes Lockless, 5.56mm US caseless, 6mm Voere caseless, early HK G11 4.7x21 round, final G11 4.7x33


#3

From left to right:

The standard round with red paper primer
A broken one showing the internal combustible sleeve
Propellant/primer variant
Propellant variant
Projectile/propellant and primer variant
An ‘unloaded’ round without primer
A phenolic resin dummy
’Skinny’ variant
Propellant/primer vairant with silk cover showing the unfortunately typical destructive oxidation common to US rounds.



I’m not sure exactly on the timeframe of these telescoped rounds. I suspect they are somewhat later than the above rounds.



#4

Telescoped rounds should be caseless cartridges developed by Hercules company about 1960.


#5

Those telescoped rounds were designed by Hercules, Inc. and patented in 1969 (filled in 1967). These were proposed for a lockless LLMG produced by Hughes Tool Co. (became Hughes Helicopters & Ordnance Systems in 1972) wich was actually chambered for those 5,56 x 30 mm square case telescoped rounds (“chicklet”) but was also advertised as with “Caseless Convertibility”.


#6

Thank you very much, gentlemen, that’s most helpful.


#7

The link listed here: dtic.mil/cgi-bin/GetTRDoc?AD … tTRDoc.pdf
shows a Frankford Arsenal report, dated 1962, titled COMBUSTIBLE AMMUNITION FOR SMALL ARMS. Part 2. Development of a Combustible Small Arms Cartridge

Brian


#8

We had a series of these in our sale 10 & the information about ‘case’ manufacture from Frank Hackley, in a nut-shell was:

Made in the late 1960’s by Frankford Arsenal, had the cases manufactured by using a bonding agent / powder slurry in a mold, and then vacuum formed.


#9

Here is the link for Combustible Ammunition for Small Arms Part 1: Development of Self-Contained Propellant Charge. Frankford Arsenal, 1960
dtic.mil/cgi-bin/GetTRDoc?AD … tTRDoc.pdf

Brian