Whats the difference between ak47 and ak74

[Guest]

Unsuppressed weapons have exactly the same range and penetration as the suppressed. You usually use low-speed (subsonic) ammo with a suppressor to avoid the sonic boom of the bullet, but that has nothing to do with the suppressor.

Since ppl seem to think that suppressors are some kind of magical devices, here is how they work:

A bullet is propelled through the barell by higs-pressure pulse of hot gas, generated by the ignited gunpowder. When the bullet exits the end of the barrel you get the same effect as you get when you open a champagne bottle or pop a baloon with a pin. The loud "pop" that the gun produces is due to the extremely hight pressure of the gas behind the bullet.

A suppressor screws on to the end of the barrel and has a much higher volume then the barrel. The gas expands inside the suppressor and the pressure of the gas falls significantly. When the bullet exits the suppressor, the pressure being released is much lower and you avoid the lout "pop".

A suppressor does not silence the 'crack' of the supersonic bullets (i.e sonic boom). It doesn't silence the operating mechanism of the gun and it doesn't silence the impact of the bullet. A good suppressor does not affect the general characteristics of the gun.

[Tor 0]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (denoir @ Mar. 20 2002,09:57)</td></tr><tr><td id="QUOTE">A suppressor screws on to the end of the barrel and has a much higher volume then the barrel. The gas expands inside the suppressor and the pressure of the gas falls significantly.<span id='postcolor'>

If it has a larger volume and the pressure falls inside the suppressor, wouldn't the muzzle velocity be lower?

I mean if you have a bottle of champaigne that has gone flat, the cork won't fly as long as with a bottle with lots of sparkle.

Anyway we are drifting off-topic. Perhaps the original question should be an item for The Avon Lady's FAQ.

[Tor 0]

After some reading on various websites I think your discussion emerges from confusion of what you are acutally dicussing.

Everyday uses for suppressed weapons:

Suppressors can be broadly divided into two groups –those that try to remove the supersonic crack and those that don't.

The former systems try to reduce the round velocity, either by "friction wipes" or by bleeding off some of the propelling gas.

The second form of suppressor only deal with the muzzle blast and need to be used with sub-sonic ammo if supersonic crack is to be avoided.

The article mentions that there are several advantages using a muzzle blast suppressor with supersonic ammo:

same range and terminal effects as an unsuppressed weapon

hides any muzzle flash

recoil reducing effect

For some weapons the use of a suppressor improves accuracy

So in short you will have advantages using a muzzle suppressor with supersonic ammo, but the weapon will not be fully silenced. If you want a fully silenced weapon using a muzzle suppressor, you have to use subsonic ammo and then you accuracy, range and penetration will suffer.

[Blake 0]

I think AK-74 recoild could be a bit lower than AK-47 since it's firing smaller-caliber bullet. I've heard the recoil with AK-74 is very pleasant even fireable on full auto...

[Guest]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (Tor @ Mar. 20 2002,10:10)</td></tr><tr><td id="QUOTE"></span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (denoir @ Mar. 20 2002,09:57)</td></tr><tr><td id="QUOTE">A suppressor screws on to the end of the barrel and has a much higher volume then the barrel. The gas expands inside the suppressor and the pressure of the gas falls significantly.<span id='postcolor'>

If it has a larger volume and the pressure falls inside the suppressor, wouldn't the muzzle velocity be lower?<span id='postcolor'>

The suppressor is as Mister Frag pointed out *not* in contact with the bullet. The bullet is in free flight inside the suppressor. The suppressor has *nothing* to do with the bullet, it just takes care of the gasses that follow the bullet.

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">

I mean if you have a bottle of champaigne that has gone flat, the cork won't fly as long as with a bottle with lots of sparkle.

<span id='postcolor'>

No, no - the suppressor is mounted outside of the muzzle. We don't change the pressure inside the muzzle. So your analogy of champagne gone flat makes no sense.

In short - the suppressor has nothing to do with the bullet.

[DaCrytter 0]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">The suppressor is as Mister Frag pointed out *not* in contact with the bullet. The bullet is in free flight inside the suppressor. The suppressor has *nothing* to do with the bullet, it just takes care of the gasses that follow the bullet.

<span id='postcolor'>

I have been following this thread with some interest, but this has me a bit baffled. If the suppressor does not have any contact the bullet, whats to stop it deviating from it's flight path, and smashing into the end of the suppressor rather than exiting the suppressor out of the hole at the end?

[Mister Frag 0]

The inside diameter of the suppressor or flash hider is somewhat oversized (hence no contact with the bullet), and the bullet would have to yaw immediately after exiting the muzzle to make contact with the suppressor/flash hider.

In the case of the AK74 that this whole discussion is centered on, the bullet travels at a speed of over 3000ft/sec, and the AK74 muzzle brake is only about two inches long. So the bullet has 1/18000 of a second to deviate enough from its original path to hit anything -- it's just not going to happen, especially with a properly stabilized bullet.

By the way, here is a close-up of the AK74 flash suppressor / muzzle brake combination. I apologize for the poor quality, the picture was taken with a USB webcam:

The first picture shows the top of the brake, with three vent holes. The second picture shows the bottom of the brake -- notice that there are no vents. Venting gases only to the top helps control the muzzle rise, but will adversely affect accuracy as discussed before.

[110 0]

The AK-74, nor any other version of it used officially by any com bloc country come equipped with a flash suppressor. It is equipped with a muzzle compensator that reduces muzzle rise and felt recoil. This compensator is very effective and has become popular enough to appear on other rifles. even the AR-15. Its only drawback is that it creates a louder report then a "naked" muzzle.

To be even more accurate a Muzzle Brake reduces recoil and a Muzzle Compensator reduces muzzle climb. if a Comp/brake does both then i guess it doesn't matter what you call it. or at least this is what i have discerned from shooting message forums.

I've never used the AK-74 type, but on a Hungarian AK i used to have, i attached a Smith Enterprises Muzzle Brake. It tamed the sharper recoil of the 7.62x39mm noticeably.

Sound Suppressors are legal in the United States. It will cost you $200 for the ATF tax stamp. The last priceing i did for a pistol was about $900 for a new one. im sure the more advanced ones will set you back a'bit. Olympic arms sells threaded barrels for most popular pistols.

The AK-47cz is actually not a Kalishnikov type weapon. Its actually called a VZ-58. Its different internally. i cant remember what was different, i'll have to check my CZ-75 book as it covers the history of other famous CZ firearms. The Russians wanted it to use the same magazines as their Kalishnikov's, but the Czech's were free to come up with their own action for the rifle.

The AK-74 is better in the game IMHO and in real life according to Dr. Martin Facklers ballistic report.

110