TonyE
HONOURED MEMBER RIP
I was fortunate today to obtain a 7mm Broadway Trust Company recoiless round at the ECRA meeting at Bisley. It is unfortunately both a fired case and projectile, but given the rarity of the round and the weapon that is in some ways more intersting that an unfired one.
These rounds, developed by Sir Dennis Burney in the immediate post WWII period were part of his developments into recoiless technology that included a hand held 20mm rifle and of course the later 3.45 inch anti-tank weapons that led to MOBAT and WOMBAT etc.
The projectiles of these rounds have a very high length to calibre ratio. The projectile in this example wighs 168 grains with a hardened steel core and is I suspect either AP or API. I have other projectiles that weigh 200 and 205 grains that are steel cored and lead cored respectively.
The other case shown is what is believed to be an unfinished 6.5mm Burney prior to perforations being punched or drilled. It is known that he worked on 6.5mm calibre cases before increasing the calibre to 7mm, possibly to fit in with other British 7mm developments at the time for the EM1/EM2 weapons.
Case length is 80mm.
Regards
TonyE
These rounds, developed by Sir Dennis Burney in the immediate post WWII period were part of his developments into recoiless technology that included a hand held 20mm rifle and of course the later 3.45 inch anti-tank weapons that led to MOBAT and WOMBAT etc.
The projectiles of these rounds have a very high length to calibre ratio. The projectile in this example wighs 168 grains with a hardened steel core and is I suspect either AP or API. I have other projectiles that weigh 200 and 205 grains that are steel cored and lead cored respectively.
The other case shown is what is believed to be an unfinished 6.5mm Burney prior to perforations being punched or drilled. It is known that he worked on 6.5mm calibre cases before increasing the calibre to 7mm, possibly to fit in with other British 7mm developments at the time for the EM1/EM2 weapons.
Case length is 80mm.
Regards
TonyE