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Contact Our StoreMagtech .300 Blackout 200gr FMJ Subsonic is factory-loaded centrefire rifle ammunition manufactured for compatible firearms chambered in .300 AAC Blackout. Identified by manufacturer product code 300BLKSUBA, this cartridge features a 200-grain Full Metal Jacket projectile and a brass cartridge case.
Part of Magtech's Subsonic ammunition range, the cartridge has a manufacturer-published muzzle velocity of 1,017 fps (310m/s), measured using a 16-inch test barrel. Subsonic ammunition is designed to travel below the speed of sound under specified conditions, although actual velocity can vary with firearm configuration and environmental temperature.
Magtech publishes a muzzle energy of 459 ft-lbs (623J) and a ballistic coefficient of 0.560 for this load. Each original factory box contains 50 rounds, with 1,000 rounds in the manufacturer's outer carton configuration.
Calibre: .300 AAC Blackout (.300 BLK)
Projectile Weight: 200gr (approximately 12.96g)
Projectile Type: Full Metal Jacket (FMJ)
Ammunition Classification: Subsonic
Manufacturer Product Code: 300BLKSUBA
Case Material: Brass
Published Muzzle Velocity: 1,017 fps (310m/s)
Published Muzzle Energy: 459 ft-lbs (623J)
Ballistic Coefficient: 0.560
Manufacturer Test Barrel: 16 inches
Factory Box Quantity: 50 rounds
Use only in firearms specifically chambered for .300 AAC Blackout and follow the firearm manufacturer's ammunition requirements.
What is Magtech .300 Blackout 200gr FMJ Subsonic ammunition?
Magtech 300BLKSUBA is factory-loaded .300 AAC Blackout ammunition featuring a 200-grain Full Metal Jacket projectile. It is part of Magtech's Subsonic range and has a published muzzle velocity of 1,017 fps (310m/s).
What is the muzzle velocity of Magtech 300BLKSUBA?
Magtech's published muzzle velocity is 1,017 feet per second, equivalent to approximately 310 metres per second, measured using a 16-inch test barrel. Actual velocity varies with firearm and environmental conditions.
How many rounds are in a box of Magtech .300 Blackout 200gr Subsonic?
Magtech specifies 50 rounds per factory box and 1,000 rounds per outer carton, equivalent to 20 factory boxes.
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Outdoor Man Australia is a Townsville-based hunting and sporting-shooting retailer providing product information about Magtech .300 Blackout 200gr FMJ Subsonic ammunition and related shooting equipment.
Customers researching Magtech 300BLKSUBA, .300 AAC Blackout ammunition, 200-grain FMJ subsonic cartridges and manufacturer ballistic specifications in Townsville, North Queensland and across Australia can review technical information through our ammunition catalogue.
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Brand: Magtech Ammunition
Manufacturer Product Code: 300BLKSUBA
Product Type: Factory-Loaded Centrefire Rifle Ammunition
Calibre: .300 Blackout
Alternative Calibre Designation: .300 AAC Blackout / .300 BLK
Projectile Weight: 200gr (approximately 12.96g)
Projectile Type: Full Metal Jacket (FMJ)
Ammunition Classification: Subsonic
Case Material: Brass
Primer:
Ballistic Coefficient: 0.560
Primary Sporting Application: Target Shooting and Training
Firearm Compatibility: Suitable Firearms Specifically Chambered for .300 AAC Blackout, Subject to Manufacturer Requirements
Published Muzzle Velocity: 1,017 fps (310m/s)
Published Muzzle Energy: 459 ft-lbs (623J)
Velocity at 50m:
Energy at 50m:
Velocity at 100m: 298m/s (approximately 980 fps)
Energy at 100m:
Manufacturer Test Barrel Length: 16 inches (approximately 40.64cm)
Factory Box Quantity: 50 rounds
Manufacturer Outer Carton Quantity: 1,000 rounds
Outer Carton Configuration: 20 × 50-round factory boxes
Manufacturer: Magtech Ammunition
What calibre is Magtech 300BLKSUBA ammunition?
Magtech 300BLKSUBA is chambered in .300 Blackout, commonly designated .300 AAC Blackout or .300 BLK.
What does 200gr mean?
The designation 200gr refers to a projectile weight of 200 grains, approximately 12.96 grams.
What does FMJ stand for?
FMJ means Full Metal Jacket, describing a projectile with a metal jacket surrounding its core.
What does subsonic mean?
Subsonic ammunition is designed to travel below the local speed of sound. Actual projectile velocity depends on ammunition, barrel configuration, temperature and atmospheric conditions.
What is the manufacturer product code?
The Magtech manufacturer product code is 300BLKSUBA.
What is the published muzzle velocity?
Magtech specifies 1,017 fps (310m/s), measured using a 16-inch test barrel.
What is the published muzzle energy?
The manufacturer specifies 459 ft-lbs (623J).
What is the ballistic coefficient?
Magtech publishes a ballistic coefficient of 0.560 for this cartridge.
How many rounds are in a factory box?
Each original factory box contains 50 rounds.
What is the manufacturer's outer carton quantity?
The outer carton contains 1,000 rounds, equivalent to 20 factory boxes.
Does Magtech .300 Blackout 200gr FMJ use brass cases?
Yes. This ammunition is manufactured with brass cartridge cases.
Is .300 Blackout the same as .223 Remington?
No. They are different cartridges and are not interchangeable. Ammunition must match the firearm's specified chambering.
Does subsonic ammunition eliminate the need for hearing protection?
No. Subsonic ammunition still produces hazardous firearm noise. Appropriate hearing protection remains necessary.
How should .300 Blackout ammunition be stored?
Store ammunition securely in accordance with applicable Queensland requirements and manufacturer instructions, protected from moisture, excessive heat and unauthorised access.
Available for in-store enquiries only – not available for online purchase.
This product is displayed on the Outdoor Man Australia website for information purposes only.
For current stock availability and product information, please contact our Townsville store.
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