autogun

Military Guns and Ammunition

Hosted by autogun

This is intended for people interested in the subject of military guns and their ammunition, with emphasis on automatic weapons.

  • 3212
    MEMBERS
  • 182437
    MESSAGES
  • 1
    POSTS TODAY

Discussions

Advantages of gas operated autocannon compared to externally powered ones?   General Military Discussion

Started 27-Jan by tidusyuki; 273 views.
tidusyuki

From: tidusyuki

27-Jan

Always woondered why the russian stubbornly sticks with gas operation instead of using externally powered autocannon like the rest of the world.

Red7272

From: Red7272

27-Jan

tidusyuki said:

Always woondered why the russian stubbornly sticks with gas operation instead of using externally powered autocannon like the rest of the world.

Because they are half the weight, have no rate of fire restrictions and are generally more reliable?

2A42 300 to 800 rpm dual feed 115 kgs

2A72 340 rpm and 84kgs

Bushmaster Mk 44 100 to 200 rpm and 160 kgs

In reply toRe: msg 2
RovingPedant

From: RovingPedant

27-Jan

For starters, the Russians aren’t the only ones running gas operated

http://army-guide.com/eng/product3067.html

Which is 170-200kg and 200-800 rpm, depending on the model.

Interestingly the later models on both the Russian guns and the German guns tend to have lower rates of fire.

A self-powered gun doesn’t have so much power demand on the vehicle and has better residual functionality (no-power mode) but I’ve heard that running rounds with large differences in impulse (e.g. APFSDS and HE) can be somewhat difficult. Gas blowback into the fighting compartment is also a problem if you are worried about that.

TOP