Im sitting here watching a rerun of future weapons and he talked about the HK MP7A1 chambered in 4.7X30.
so a quick search of the web turned up some caseless stuff, but nothing else about that round.
Anyone have the ballistics handy on this? 4.7mm would be close to a .17 cal. is this just a nato designation for the .17 Remmy?

 

texttomakethepost

 

4.6 x 30 Ammunition Technical Specifications
Cartridge Length: 1.5 in. 38mm
Projectile weight: 24.7 grains 1.6 g
Case length: 1.18 in. 30mm
Ballistics/Velocity: 2379 fps 725 m/sec
Ballistics/Muzzle Energy: 312 ft/lb 420 joule
Projectile composition: Copper plated solid steel bullet

You weren't looking very hard. Got that off HK's website.

 

ok, so who would have thought HK would list the specs to the ammo.

so its a little smaller and slower than the .17 Remington