SIG SAUER 300 Blackout 125 Grain CTT Ammunition – 20 Rounds

Description

SIG SAUER .300 Blackout 125 Grain CTT Supersonic Ammunition

SIG SAUER C300B1-20 is .300 AAC Blackout ammunition built for supersonic practice and range use. Each box contains 20 cartridges loaded with a 125-grain CTT full metal jacket bullet. Manufacturer part number C300B1-20 and UPC 798681726592 identify this exact load.

Supersonic .300 Blackout range load

SIG SAUER classifies this cartridge as practice ammunition for the rifle platform. The 125-grain projectile provides a supersonic option for training, function checks and general range work with firearms chambered for .300 AAC Blackout. It should not be confused with SIG SAUER’s heavier subsonic .300 Blackout loads or with expanding hunting and defensive ammunition.

The manufacturer’s published performance is a muzzle velocity of 2,145 feet per second and muzzle energy of 1,277 foot-pounds, measured with a 16-inch test barrel. Actual velocity and point of impact can vary with barrel length, firearm, environmental conditions and production lot. Shooters should confirm function and zero in the firearm in which the ammunition will be used.

125-grain CTT full metal jacket bullet

SIG SAUER lists the bullet type as full metal jacket and uses the CTT designation in the product name. The published G1 ballistic coefficient is 0.313, and the listed bullet length is 21.3106 mm. This load is not listed as lead free. SIG SAUER also specifies that its primer is not staked.

A full metal jacket range load is intended primarily for practice rather than controlled expansion. Buyers selecting ammunition for hunting, personal protection or another specialized application should choose a projectile designed and approved for that purpose and follow all applicable game laws and regulations.

Compatibility and use

Use this ammunition only in a firearm clearly marked and safely chambered for .300 AAC Blackout / 300 BLK. The cartridge must never be mixed with 5.56 NATO or .223 Remington ammunition. Because .300 Blackout can be used in firearms that resemble or share components with 5.56 platforms, careful magazine labeling and ammunition segregation are strongly recommended.

Before use, consult the firearm owner’s manual and inspect each cartridge for visible damage or contamination. Always wear appropriate eye and hearing protection. Follow range rules, keep the muzzle pointed in a safe direction and store ammunition separately from firearms when appropriate. Ammunition should be kept in a cool, dry location in its original labeled packaging and away from heat, moisture and unauthorized access.

Key specifications

• Manufacturer: SIG SAUER.
• Manufacturer part number: C300B1-20.
• UPC: 798681726592.
• Caliber: .300 AAC Blackout / 300 BLK.
• Application: practice and range use.
• Bullet: 125-grain CTT full metal jacket.
• Velocity: 2,145 fps from the manufacturer’s 16-inch test barrel.
• Energy: 1,277 ft-lbs at the muzzle.
• Ballistic coefficient: 0.313 G1.
• Quantity: 20 cartridges per box.
• Supersonic: yes.
• Lead free: no.
• Staked primer: no.

What is included

This listing is for one 20-round box of SIG SAUER C300B1-20 ammunition unless the quantity selector or order details state otherwise. A firearm, magazine and other accessories are not included. Ammunition sales, shipment and possession are restricted in some jurisdictions; buyers are responsible for confirming eligibility and complying with applicable laws.