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AR 300 blackout magazine
schotzi1
Member Posts: 307 ✭✭✭
I am building an AR 300 blackout and I have been told I can use a regular AR-15 223/556 magazine... Is that correct? If so I would think that I wouldn't get 30 rounds in it.
Comments
Designer Remington / Wayne Leek
Manufacturer Remington
Produced 1963
Specifications
Parent case .222 Remington
Bullet diameter .224 in (5.7 mm)
Neck diameter .253 in (6.4 mm)
Shoulder diameter .361 in (9.2 mm)
Base diameter .376 in (9.6 mm)
Rim diameter .378 in (9.6 mm)
Rim thickness .045 in (1.1 mm)
Case length 1.400 in (35.6 mm)
Overall length 1.830 in (46.5 mm)
Rifling twist 1-12"
Primer type Small rifle
According to Remington it is based on the .222 Remington case shortened to 1.400" in length. It is indeed the commercial name for the 300 Whisper which J.D fought tooth and nail to keep proprietary but failed and gave into the masses.
Necked down to the .17 caliber it is named the 17 Mach IV and necked up the .30 caliber it was named the .30 Apache.
Best.
Production history
Designer Remington / Wayne Leek
Manufacturer Remington
Produced 1963
Specifications
Parent case .222 Remington
Bullet diameter .224 in (5.7 mm)
Neck diameter .253 in (6.4 mm)
Shoulder diameter .361 in (9.2 mm)
Base diameter .376 in (9.6 mm)
Rim diameter .378 in (9.6 mm)
Rim thickness .045 in (1.1 mm)
Case length 1.400 in (35.6 mm)
Overall length 1.830 in (46.5 mm)
Rifling twist 1-12"
Primer type Small rifle
According to Remington it is based on the .222 Remington case shortened to 1.400" in length. It is indeed the commercial name for the 300 Whisper which J.D fought tooth and nail to keep proprietary but failed and gave into the masses.
Necked down to the .17 caliber it is named the 17 Mach IV and necked up the .30 caliber it was named the .30 Apache.
Best.
Never heard of the .30 Apache previously. Surprising? I always thought Jones, was the first one out of the shute. With a 221, necked up to 30 caliber.
Production history
Designer Remington / Wayne Leek
Manufacturer Remington
Produced 1963
Specifications
Parent case .222 Remington
Bullet diameter .224 in (5.7 mm)
Neck diameter .253 in (6.4 mm)
Shoulder diameter .361 in (9.2 mm)
Base diameter .376 in (9.6 mm)
Rim diameter .378 in (9.6 mm)
Rim thickness .045 in (1.1 mm)
Case length 1.400 in (35.6 mm)
Overall length 1.830 in (46.5 mm)
Rifling twist 1-12"
Primer type Small rifle
According to Remington it is based on the .222 Remington case shortened to 1.400" in length. It is indeed the commercial name for the 300 Whisper which J.D fought tooth and nail to keep proprietary but failed and gave into the masses.
Necked down to the .17 caliber it is named the 17 Mach IV and necked up the .30 caliber it was named the .30 Apache.
Best.
I suspect Mr. Jones's penchant for protecting his creations is why my Redding reloading dies are labeled "375/444 Marlin" and not "373 JDJ".
The 300 BLKOUT will fit in most standard 5.56 magazines. You might get 30 in a mag but it will depend on the design of the magazines. Yes, I know this sounds wishy-washy but that is the way of magazines, they don't all perform to the same standards.
quote:I suspect Mr. Jones's penchant for protecting his creations is why my Redding reloading dies are labeled "375/444 Marlin" and not "373 JDJ".
This is the answer to anything provided by JD Jones. He felt compelled to protect everything he 'created' so the rest of the world found methods of creating work arounds.
30 Apache
Best.