Norma .338 Norma Magnum 300 grain Sierra MatchKing Boat Tail Hollow Point Brass Cased Centerfire Rifle Ammo 20 Rounds. 338 cartridge for shooting a 300 gr Sierra Match King bullet with the best accuracy and highest possible velocity within a maximum loaded cartridge length of 935 mm (3.68). The result is the .338 Norma Magnum. Specifications for Norma .338 Norma Magnum 300 Grain Sierra MatchKing Boat Tail Hollow Point Brass Cased Centerfire Rifle Ammunition: Manufacturer: Norma Caliber: .338 Norma Magnum Number of Rounds: 20 Bullet Type: Boat Tail Hollow Point (BTHP) Bullet Weight: 300 grain Cartridge Case Material: Brass Muzzle Velocity: 2790 ft/s Application: Match Package Type: Box Primer Style: Centerfire G1 Ballistic Coefficient: 0.768 G7 Ballistic Coefficient: 0.384 Lead Free: No Features of Norma .338 Norma Magnum 300 Grain Sierra MatchKing Boat Tail Hollow Point Brass Cased Centerfire Rifle Ammunition Weight Retention Bonded Bullet Velocity V0 2657 F/S Wind - 300Yds 4.2 In Package Contents: Norma .338 Norma Magnum 300 Grain Sierra MatchKing Boat Tail Hollow Point Brass Cased Centerfire Rifle Ammo What is Norma .338 Norma Magnum 300 Grain Sierra MatchKing Boat Tail Hollow Point Brass Cased Centerfire Rifle Ammunition good for? The manufacturer suggests that it is good for match.Norma 20185272: .338 Norma Magnum 300 grain Sierra MatchKing Boat Tail Hollow Point Brass Cased Centerfire Rifle Ammo 20 Rounds