Story by Phil Massaro, Photos by Phil Massaro and Courtesy of the Manufacturers
The.224 Valkyrie was designed around the 90-grain Sierra MatchKing bullet and delivers a muzzle velocity of 2,700 fps, keeping it supersonic out to 1,300 yards.
The 6.5 Creedmoor is based on the.30 T/C cartridge. It’s shortened to leave enough room in an AR-10 magazine, so the bullet can be seated properly.