Unknown 25mm projectile

[Buster]

Can anyone provide anyone information about the 25mm projectile shown in the picture.

Thanks in advance

Ian

 

[SG500]

25mm CTA

Could be for the 25 x 152 Philco Ford or the 25 x 155 GAU 7. There's loads of info about these CTA rounds in the book:
"Historical Development Summary of Automatic Cannon Caliber Ammunition: 20-30 Millimeter" by Dale Davies
Just put it into Google and download a free copy.

Note the groove around the base of the projectile, a plastic or paper washer fits into it, see photos below. They made ones with plastic and also copper bands.

Dave.

 

[Buster]

Thanks Dave, forgive my ignorance, what is CTA?

Ian

 

[SG500]

Thanks Dave, forgive my ignorance, what is CTA?

Ian

Cased Telescoped Ammunition

 

[Buster]

Thanks Dave

 

[HAZORD]

Does the aluminum Tip screw in like a fuze?

 

[Buster]

Hi Hazord the aluminium tip does not unscrew but I have only tried by hand.

Best

Ian