338 Lapua Mag – 300 gr Sierra MatchKing BTHP – Black Hills (2C338LAPN1) – 20 Rounds

Extreme long range shooters choose the 338 Lapua Magnum to push heavy bullets past a mile, and the ammunition has to be as consistent as the rifle. This listing is Black Hills 338 Lapua Mag 300 grain Sierra MatchKing boat tail hollow point match ammo, MPN 2C338LAPN1, sold as a single 20 round box for zeroing, load testing, or a day of long range work.

The 300 grain Sierra MatchKing is one of the most widely used heavy bullets in this cartridge, with a long boat tail and a high ballistic coefficient that resists wind drift and holds energy at distance. Black Hills is known for careful component selection and loading practices aimed at small groups and low velocity spread. A match bullet is built for accuracy on paper and steel. It is not designed to expand reliably on game, so hunters should choose a bullet made for that job.

This ammunition fits rifles chambered in 338 Lapua Magnum, including the Sako TRG 42, Accuracy International AXMC, Barrett MRAD, Ruger Precision Rifle in 338 Lapua, and Savage 110 Elite Precision. A common question is whether 338 Lapua and 338 Winchester Magnum are interchangeable. They are not. The Lapua case is longer and much larger in diameter, so fire this only in rifles marked 338 Lapua Magnum. Another common question is about twist rate. Most factory 338 Lapua barrels use roughly a 1:9 to 1:10 twist, which is the range intended for 300 grain bullets, but confirm the twist of your own barrel.

Black Hills 2C338LAPN1 is new production ammunition, not reloads, made in Rapid City, South Dakota. The cases are reloadable boxer-primed brass and the load is non-corrosive, so the once-fired brass is worth saving for handloading. This listing is one box of 20 rounds from a single lot. Record your velocity and come-ups with this box so your data carries forward to later purchases.