Sierra Bullets 1997: Sierra Bullets is proud to introduce a new addition to the legendary MatchKing line. Shooters around the world will appreciate the accuracy and extreme long range performance of our new 7mm 197 grain HPBT. A sleek 27 caliber elongated ogive and a final meplat reducing operation provide an increased ballistic coefficient for optimal wind resistance and velocity retention. To ensure precise bullet to bore alignment, a unique bearing surface to ogive junction uses the same 1.5 degree angle commonly found in many match rifle chamber throats.