New SIG Sauer .300 Blackout Supersonic Elite Performance Ammo

posted on April 7, 2015
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
300blk_ammo_box1sm.jpg

SIG Sauer, Inc. has announced its new .300 Blackout Supersonic Elite Performance Ammunition match grade center-fire cartridges. This supersonic round features a 125-gr. Sierra Matchking projectile and, like the SIG Sauer 220-gr. subsonic .300 Blackout round, is designed to work optimally in today’s high-performance AR rifles.

The Sierra Matchking projectiles in the .300 Blackout supersonic rounds are renowned for their superior accuracy, flat trajectory and consistent point of impact.  The unique hybrid hollow point bullet design also ensures maximum expansion on point of impact. These cartridges feature match grade brass cases and function with standard .223 Rem./5.56 mm magazines without a reduction in capacity.

“The .300 Blackout is an increasingly popular caliber with target shooters and 3-gun competition shooters, and is also an excellent round for home defense in short barrel rifles, including the SIG MCX and M400,” said Bud Fini, vice president of marketing for SIG Sauer. “Elite military units are also evaluating the .300 Blackout as their primary CQB load. More modern sporting rifle hunters are turning to the .300 Blackout for close-range hunting of mid-sized game, including hogs and deer. We are pleased to now offer our customers both supersonic and subsonic rounds to meet their shooting and hunting needs.”  

All Elite Performance Ammunition is manufactured in the United States by SIG Sauer to the same exacting standards as the company’s premium pistols and rifles.  For more information, visit sigsauer.com/ammunition.

Latest

260909NRA
260909NRA

NRA Launches "ARC Across America" National Challenge

The National Rifle Association is inviting Americans, coast-to-coast, to celebrate the 250th anniversary of the United States—and the freedom for which it stands—by exercising their rights by participating in the "ARC Across America" National Challenge.

New for 2026: Sightmark Strikon Prism Optics

Sightmark now offers two different prismatic optics for carbines and shotguns.

Q&A: Getting the Lead Out of Revolver Cylinders & Barrels

One American Rifleman reader wrote in, asking how to clean lead build-up out of his Colt revolver and also prevent lead from building up with his cast bullets.

Affordable, Full-Auto Fun: The Crosman Raiden BB Gun

Over the past two decades, the world of BB guns has gotten way more sophisticated than the simple muscle-powered models of our youth. A case in point is Crosman’s new-for-2026 Raiden.

New Dragons: Managing Muzzle Flash From Today's Suppressors

Muzzle flash has always been an issue for those who employ firearms seriously, and with today's crop of suppressors, there are design elements to be aware of.

Gun of the Week: Mossberg 590R Chisel

For those who are seeking a shotgun that's a bit more heavy-duty, Mossberg's 590 line offers plenty of options, and one of the latest is the striking 590R Chisel.

Interests



Get the best of American Rifleman delivered to your inbox.