20mm necked down to .30 caliber!!!

[Buster95]

The .30x128 4-1 fool is a cartridge that uses the 20mm Lahti necked down to a 30 caliber (7.62 mm) bullet. It is offered with bullets between 165 and 200 grains (10.7 g and 13.0 g), generating velocities able to exceed 15,500 ft/s!!!

Here a pic of the monster

 

[zZ_denis]

I dont know if you're joking or not, but there is no way (if real) that it will generate 15500 fps. I remeber reading somewhere that 6000fps is close to a theoretical limit for a smokeless powder propelled projectile.

 

[9x19p]

I'm no fool

 

[Mikeyman]

Good one

 

[oops]

PSST.....wanna buy a unicorn?

 

[shawn]

I dont know if you're joking or not, but there is no way (if real) that it will generate 15500 fps. I remeber reading somewhere that 6000fps is close to a theoretical limit for a smokeless powder propelled projectile.

Dude look at the name of the cartridge ".30x128 4-1 fool"

hint, month and day

Shawn