QF 75 (75 × 350 mm R) APDS-T

[blockhaj]

So it appears the Belgians had APDS for their M24 Chaffee but no one really knows were such ammo came from. From recent evidence (image 1) the round appears to bear British markings and resembling APDS munition for the British QF 17pdr and QF 77 mm (see image 4). Did the British ever developed APDS for the QF 75 and could this round be it? The QF 75 and American 75 mm M6 per the M24 Chaffee shared the same cartridge for those unaware.

 

[TMA1]

Sounds like it is slow enough not to have the accuracy issues that the 17 pounder had with its apds which exited the barrel much faster than 900 meters per second.

Edit:spellcheck error

 

[Firefinder]

Sounds like it is slow enough not to have the accuracy issues that the 17 pounder had with its apds which exited the barrel much faster than 900 meters per second.

Edit:spellcheck error

It wasnt the speed that made the 17's APDS inaccurate.

It was actually extremely accurate.

It was the inability of the crew to see where it went due to it small impact and lack of tracer to spot the fall of tge shot to correct the aiming point.

 

[blockhaj]

It wasnt the speed that made the 17's APDS inaccurate.

It was actually extremely accurate.

It was the inability of the crew to see where it went due to it small impact and lack of tracer to spot the fall of tge shot to correct the aiming point.

The early models had trouble with sabot separation, even the smallest delay of one of the petals could make the round veer off course or destabalize it, the latter decreasing penetration.

 

[Aayanthegreat]

So it appears the Belgians had APDS for their M24 Chaffee but no one really knows were such ammo came from. From recent evidence (image 1) the round appears to bear British markings and resembling APDS munition for the British QF 17pdr and QF 77 mm (see image 4). Did the British ever developed APDS for the QF 75 and could this round be it? The QF 75 and American 75 mm M6 per the M24 Chaffee shared the same cartridge for those unaware.

Hey, would you mind sending the name of the book so I can take a look at it further?

 

[Scott Kenny]

So it appears the Belgians had APDS for their M24 Chaffee but no one really knows were such ammo came from. From recent evidence (image 1) the round appears to bear British markings and resembling APDS munition for the British QF 17pdr and QF 77 mm (see image 4). Did the British ever developed APDS for the QF 75 and could this round be it? The QF 75 and American 75 mm M6 per the M24 Chaffee shared the same cartridge for those unaware.

I would honestly expect that they took the 17pdr APDS projectile and turned down the sabot to fit the 75mm bore. There's only about a 1.2mm difference in total, so cutting 0.6mm off the sabot is all it would take.

Won't be going as fast as from the 17pdr or 77mm, but it'd be better than whatever AP rounds were still available.

 

[blockhaj]

Hey, would you mind sending the name of the book so I can take a look at it further?

i got this second hand; i asked for for u

 

[blockhaj]

I would honestly expect that they took the 17pdr APDS projectile and turned down the sabot to fit the 75mm bore. There's only about a 1.2mm difference in total, so cutting 0.6mm off the sabot is all it would take.

Won't be going as fast as from the 17pdr or 77mm, but it'd be better than whatever AP rounds were still available.

ive compared the image with 17pdr rounds before, and they are not direct clones; it appears to be a unique round

 

[Scott Kenny]

ive compared the image with 17pdr rounds before, and they are not direct clones; it appears to be a unique round

Okay, I stand corrected. And surprised.

 

[blockhaj]

Okay, I stand corrected. And surprised.

Well, it is expected either way that Britain would develope APDS for the QF75, and early APDS required a lot of refinement, so i would assume custom sabots even for such a small caliber change. The projectile itself could potentially be the same, or at least the core.