Mystery Ammo! One Of A Kind?

[BlackPowderBurner]

What exactly am I looking at here? It has a .264 diameter bullet but doesn't resemble anything I'm familiar with!

 

[ShawnC6]

How... would it extract?

 

[legi0n]

there's some blur in the image
is there an extractor groove?
could you please post the cartridge dimensions?

 

[Kman303]

Doesn't look like you have a case head friend...

 

[Conrad]

looks like a factory defect?

 

[salon_1928]

Swede with 130 gr Accubond but missing something?

 

[shredder]

It surely looks like a defective case (possibly 6.5x55 Swedish)- without a rim or extractor groove the only way it's coming out of the chamber is with a cleaning rod!

 

[FALover]

Does it have a headstamp?

 

[buzzmagoo]

Iooks like this one slipped by quality inspection!

 

[ipscgraz]

Sizing template for the new 6.5 mm Caseless Armour piercing.

We don't need no stinkin' extractor groove...

 

[legi0n]

Sizing template for the new 6.5 mm Caseless Armour piercing.

We don't need no stinkin' extractor groove...

true
blowbacks don't need extractors