Description
The DoubleTap 300 BLK 125gr Colt Defense load is built for shooters who want more from their 300 AAC Blackout than typical factory ammunition delivers. DoubleTap loads a 125 grain Colt Defense solid copper hollow point to a rated 2400 feet per second, producing about 1599 foot-pounds of energy from a test barrel. Made by DoubleTap under the Colt Defense Ammunition name, this supersonic 125 grain load is built for home defense and hunting with a 300 Blackout rifle or pistol.

Why Choose the DoubleTap 300 BLK 125gr Colt Defense
- 125 grain solid copper hollow point
- Rated 2400 fps, 1599 ft-lbs
- Supersonic load for reliable expansion
- Holds together for consistent penetration
- 20 rounds per box, item 300BLK125CT
Built for Home Defense
- Home defense with a 300 Blackout rifle or pistol
- Hunting hogs and deer where legal
- Short-barreled and suppressor-ready 300 BLK builds
- AR-15 platforms and bolt guns chambered in 300 AAC Blackout
Always confirm your zero with your defensive load, since supersonic and subsonic 300 Blackout loads shoot to very different points of impact. Keep your magazines clearly marked if you use both.
Buying ammunition by the box from the same production lot keeps velocity and point of impact consistent from one range trip to the next. Keep a record of the load you carry, check your ammunition for dents or loose bullets from time to time, and rotate your carry rounds so the ones in your firearm stay fresh. These simple habits help you get the full performance DoubleTap builds into every cartridge.
Before you trust any new load, fire enough rounds through your firearm to confirm it feeds, fires and ejects reliably and that the point of impact matches your sights. Full-power loads produce more recoil and muzzle blast than typical range ammo, so practice with the DoubleTap 300 BLK 125gr Colt Defense until you are comfortable with it, and store the rest in a cool, dry place in the original box.
Specifications
- Brand: DoubleTap Ammunition
- Product Line: Colt Defense Ammunition
- Caliber: 300 AAC Blackout
- Bullet Weight: 125 grains
- Bullet Type: Colt Defense solid copper hollow point
- Muzzle Velocity: 2400 fps (test barrel)
- Muzzle Energy: 1599 ft-lbs
- Case: Brass
- Quantity: 20 rounds
- Item Number: 300BLK125CT
- UPC: 753387048553
Why Choose DoubleTap 300 BLK Ammo
The 300 Blackout was designed to bring 30 caliber performance to the AR-15 platform, and supersonic loads like this one make the most of it. DoubleTap rates this 125 grain copper hollow point at 2400 fps and 1599 foot-pounds, giving it the speed needed for reliable expansion and solid penetration.
When you compare 300 blk self defense ammo, supersonic loads expand more reliably than subsonic ones. This 300 blk 125 grain solid copper load is a strong match for 300 Blackout rifles and pistols, and it works well for hogs and deer where local rules allow the caliber.
DoubleTap Ammunition is an American company known for loading popular calibers to their full potential, especially the 10mm Auto and other magnum handgun rounds. Doubletap 300 blk ammo is loaded with quality components and brass cases, and many shooters choose it when they want the performance a caliber was designed for rather than a reduced-power range load.
300 Blackout owners who want a supersonic load for home defense or hunting will find this a strong choice. Always confirm your firearm is chambered for 300 AAC Blackout, wear eye and ear protection, and follow all federal, state and local laws.
Browse more ammunition at Mag 5 Firearms, or visit DoubleTap Ammunition for more about their full line of loads.









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