.300 AAC Blackout

E713950

.300 AAC Blackout is an intermediate rifle cartridge developed for the AR-15 platform, designed to offer improved performance in short barrels and with both supersonic and subsonic loads, particularly when used with suppressors.

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Statements (48)

Predicate Object
instanceOf centerfire rifle cartridge
intermediate cartridge
rifle cartridge
alsoKnownAs .300 BLK NERFINISHED
7.62×35mm
bulletDiameter .308 in
7.82 mm
caseLength 1.368 in
34.7 mm
caseType bottleneck
rimless
category intermediate rifle cartridge
commercialDesignation .300 AAC Blackout NERFINISHED
compatibleWith standard AR-15 bolts
standard AR-15 magazines
countryOfOrigin United States of America
surface form: United States
designedFor short-barreled rifles
designedForPlatform AR-15 NERFINISHED
designedToMatch 7.62×39mm ballistics in AR-15 platform
designedYear 2009
developer Advanced Armament Corporation NERFINISHED
Remington Defense NERFINISHED
intendedUse civilian sporting
home defense
hunting
law enforcement
military
introducedYear 2010
militaryDesignation 7.62×35mm
notableFeature effective subsonic performance
good performance from short barrels
reduced muzzle blast with suppressor
optimizedFor use with sound suppressors
overallLength 2.26 in
57.0 mm
parentCase .223 Remington NERFINISHED
5.56×45mm NATO
pressureStandard SAAMI maximum average pressure 55,000 psi
requiresChangeFrom5.56 barrel only
standardizationYear 2011
standardizedBy SAAMI NERFINISHED
supportsLoadType subsonic
supersonic
typicalSubsonicBulletWeight 190–220 grains
typicalSupersonicBulletWeight 110–125 grains
usedIn AR-15 pattern rifles NERFINISHED
bolt-action rifles
pistols based on AR-15 platform

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

AR-15 pattern rifles supportsCaliber .300 AAC Blackout