Sierra Bullets Expands MatchKing-X Lineup With New 6 mm 107-Grain HPBT

Bridging competition-level precision with practical hunting use.

by
posted on July 1, 2025
** 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. **
Newmatchkingsierra 1
Sierra Bullets has extended its MatchKing-X line to include the 6 mm 107-grain HPBT MKX.
Photo courtesy Sierra Bullets

Sierra Bullets has added a new 6 mm 107-grain hollow point boat tail (HPBT) projectile to its MatchKing-X (MKX) series, bringing the line’s long-range precision into a format designed to perform in both competition and hunting conditions.

MKX 6 mm 107-grain
The new 107-grain Hollow Point Boat Tail MatchKing-X bullet mirrors the design of its 107-grain MatchKing counterpart, maintaining the same ogive profile and external dimensions. (Photo courtesy Sierra Bullets)

The MKX series, introduced earlier this year, is a spinoff of Sierra’s well-known MatchKing bullets—this time reworked to deliver consistent terminal performance alongside the precision for which the original line is known. The newest addition keeps the external shape and ogive of Sierra’s established 107-grain MatchKing bullet, meaning handloaders won’t need to change die settings to switch between the two.

“We’re excited to introduce this 6 mm 107-grain MatchKing-X (MKX) bullet into our lineup. Its MatchKing counterpart has been a top performer in our line since the rise in popularity of 6 mm cartridges. Naturally, the inclusion of this 6mm offering into our MKX lineup has been highly anticipated,” Sierra Bullets Marketing Manager Colby Adamek said. “This new offering gives competitive 6 mm shooters a precision-engineered bullet they can confidently take from the range to the field, delivering the performance needed for both competition and hunting applications.”

While visually similar to its match-focused sibling, the new MKX version is built to expand on impact, a key change aimed at hunters using 6 mm platforms for medium game. The bullet is designed to retain its accuracy while adding the kind of terminal performance needed for ethical takedowns in the field.

The 6 mm 107-grain MKX is now available in 100-count boxes for $50.99 and in bulk 500-count boxes for $244.99. It’s available through Sierra’s website and dealers nationwide. A 7 mm MKX variant is expected later in the summer.

Latest

2025 Fclass Illinois Teams 1
2025 Fclass Illinois Teams 1

4 Illinois Rifle Teams Set Sights On 2025 NRA F-Class Nationals

Four Illinois rifle teams set their sights on the 2025 NRA F-Class Nationals, ready to compete in Mid-Range and Long-Range events.

USPSA: Celebrating Growth, Fueling The Future

USPSA celebrates surpassing 40,000 members, with growing participation signaling a dynamic new chapter for the practical competition shooting community.

Competitors’ Corner: July 2025

Highlights from the July 2025 issue of Shooting Sports USA, the NRA’s competitive shooting journal.

All About The 2025 USA High School Clay Target League National Championship

The USA High School Clay Target League National Championship draws top shooters nationwide, showcasing skill, safety and sportsmanship.

Ruger’s New Mark IV 22/45 Lite

Ruger’s upgraded rimfire pistol delivers competition-ready performance in a sleek, lightweight design.

Colt Pro Team’s Justine & Jalise Williams Help Spark Team USA’s Gold Rush At 2025 IPSC World Shoot

Justine and Jalise Williams, representing Colt and Team USA, captured team gold and top individual finishes at the 2025 IPSC PCC/Mini Rifle World Shoot.

Interests



Get the best of Shooting Sports USA delivered to your inbox.