HSM Match 308 Winchester 168gr HPBT MK Rifle Ammo - 20 Rounds - In an extended article in the August, 2016 issue of Guns Magazine ("The 1-Gun Solution"), Will Dabbs discusses the Daniel Defense DD5V1. When it came to wringing out this .308 Win. semi-auto on the range, HSM's 168gr., HPBT Match ammunition turned in a most impressive 0.65in group at 100 meters. The other five big-name competitors weren't anywhere close. This is not atypical performance for HSM Match. Try it and you will see for yourself.