The Sierra MatchKing-X 135-grain Hollow Point Boat Tail (HPBT) is produced to match the external dimensions and ogive profile of the original MatchKing while providing enhanced terminal performance for field use. These jacketed boat-tail bullets are listed for .270 caliber applications and come packaged as 100 bullets per box. The MatchKing-X is intended for shooters seeking the external ballistics of a match bullet combined with improved expansion characteristics.
Key Specifications
- The bullet weight is 135 grains.
- The intended caliber is .270 Caliber with a listed diameter of .277 inches.
- The reported ballistic coefficient is 0.505 (G1).
- The bullet type is a JHP-Boat Tail.
- Construction is listed as jacketed.
- Package quantity is 100 bullets per box.
- Brand style is listed as MatchKing X.
- Boxes per case are listed as 5.
- External dimensions are listed with a width of 2.5500, length of 3.5500, and height of 1.5000.
The MatchKing-X 135 gr HPBT pairs the flight characteristics of Sierra’s MatchKing profile with design changes aimed at improved terminal performance, making it suitable for precision target work and field applications where controlled expansion is desired. Its match-profile ogive supports consistent seating and ballistic performance across match and hunting use cases.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




