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

Gotw Traditions G3 Pro Web
Gotw Traditions G3 Pro Web

Gun Of The Week: Traditions Outfitter G3 Pro

Join American Rifleman staff in this video to get a close look at a single-shot rifle design oriented toward today’s modern hunter, particularly those in states where straight-wall cartridges have been legalized for hunting.

The Armed Citizen® Sept. 12, 2025

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Sellmark Ranch Opens, Offers Hunting & Shooting Opportunities To The Public

Sellmark Corporation, the parent company of several notable firearm industry brands, opened its 6,800-acre ranch to the public, which provides dedicated hunts, mile-long shooting ranges and more.

CZ Recalls All-American Trap Combo Shotguns

CZ-USA has identified a manufacturing defect affecting the barrel of certain CZ All-American Trap Combo shotguns.

I Have This Old Gun: Japanese Type 94 Pistol

Among the pantheon of World War II military sidearms, the Japanese Type 94 stands out for a number of undesirable reasons. Aside from its ungainly look, many regard it as one of the most dangerous firearms ever made.

New For 2025: GForce Arms 12Hammer

The latest option in the diverse lineup of GForce Arms shotguns is the 12Hammer, an AR-style platform chambered for 12-ga. shotshells that feeds from detachable box magazines.

Interests



Get the best of American Rifleman delivered to your inbox.