Feral Jundi

Thursday, September 30, 2010

Weapons Stuff: New Caliber For AR Platform–The 300 AAC Blackout 7.62 x 35mm

Filed under: Cool Stuff,Military News,Weapons Stuff — Tags: , , , , , , , , — Matt @ 12:41 AM

    Now this is cool.  Look at the size of these things and they sound like they will give the 7.62 x 39mm a run for it’s money. The Military Times Gear Scout gave the heads up about this one and a hat tip to them. –Matt

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Introducing the Advanced Armament Corp. 300 AAC BLACKOUT (300BLK).

This system was developed to launch 30 caliber projectiles from the AR platform without a reduction in magazine capacity and compatible with the standard bolt. Full power 123 grain ammunition matches the ballistics of the 7.62x39mm AK, has 37% more energy than 5.56mm M855, and 9% more than 6.8 SPC TAP 110. In fact, from a 9 inch barrel, the 300BLK has more muzzle energy than 5.56mm M855 from a 16 inch barrel. When 300 BLK is used in a 16 inch barrel, it has 23% more energy than 5.56mm M855 from a 16 inch barrel – with much higher-mass projectiles for a more dramatic effect on the target. Or choose subsonic cartridges for optimal use with a sound suppressor – 220 grain Sierra OTM (open-tip match) bullets vastly outperforms a 9mm MP5-SD in penetration and long range accuracy. Due to the high efficiency of the cartridge, less powder is used than 5.56mm, which results in a rifle that is a comfortable to shoot – even with a short barrel.

DESIGN OBJECTIVES

• Create a reliable compact 30-cal solution for the AR platform

• Utilize existing inventory magazines while retaining their full capacity

• Create the optimal platform for sound and flash suppressed fire

• Create compatible supersonic ammo that matches 7.62×39 ballistics

• Provide the ability to penetrate barriers with high-mass projectiles

• Provide all capabilities in a lightweight, durable, low recoiling package

Overview of the AAC 300BLK development, comparisons to other common ammunition, ballistics info, and host weapon system comparisons.

Download PDF (6.69MB)

Infosheet on the AAC 300BLK PDW 9″ AR upper, as well as the specially-developed 762-SD-N silencer.

Download PDF (766KB)

Datasheet on the 123 gr. MC 300BLK.

Download PDF (164KB)

Datasheet on the 155 gr. OTM 300BLK.

Download PDF (164KB)

Datasheet on the 220 gr. SUBSONIC OTM 300BLK.

Download PDF (164KB)

300 AAC BLACKOUT PDW Upper Manual.

Download PDF (700KB)

Link to website here.

Military Times Gear Scout article on the new caliber here.

Tuesday, November 24, 2009

Weapons Stuff: Major Revamp Possible for M4 Carbine

Filed under: Afghanistan,Weapons,Weapons Stuff — Tags: , , , , , , , , — Matt @ 4:29 AM

   Cool, I guess.  My choice would be to just switch to a higher caliber rifle, as opposed to dressing up this varmint shooter we call the M4.

     If I was to add one more little addition to this list, that would be to make the Mk 262 round the standard round. Sure it would be expensive, and tough to make enough of them, but it could it be done. That 77 grn. bullet is awesome for this weapon, and truly juices every last drop of effectiveness out of the weapon called the M4. (just as long as you have the barrel to support that kind of ammunition)

     In my opinion, for the cross canyon fire fights in Afghanistan, you need something with reach and with knock-down power.  That little 5.56 round just doesn’t do it for me. Hell, I wouldn’t even use that round for hunting deer.  Any way…. –Matt

Edit: I want to point the readership to a voice of reason about these recent so-called ‘weapon failures’ in the war.  Paul Howe has a running newsletter, and he discussed this issue and his thoughts.  His focus was how to properly maintain your weapon and shooting accurately.  If a soldier goes through thirty magazines in a fight, then there should be a ton of dead enemy soldiers surrounding him. The M4 should not be used as a noise maker to scare the enemy to death. Anyway, check out what Paul had to say here.

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Major revamp possible for M4 carbine

Army wants new barrel, faster fire and 4 other improvements

By Matthew Cox – Staff writer

Sunday Nov 22, 2009

The Army is considering a major redesign of the M4 aimed at making the weapon shoot cleaner and longer — at high rates of fire.

As the Army awaits Defense Department approval of a competition to find a new carbine, weapons officials have identified six fixes intended to address shortcomings in reliability, durability and handling of the Army’s inventory of more than 400,000 M4s.

Army weapons officials presented the proposed changes to Congress on Oct. 30. They are:

• Adding a heavier barrel for better performance during high rates of fire.

• Replacing the direct-impingement gas system with a piston gas system.

• Improving the trigger pull.

• Adding an improved rail system for increased strength.

• Adding ambidextrous controls.

• Adding a round counter to track the total number of bullets fired over the weapon’s lifetime.

(more…)

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