Barnes Precision Match 300 Winchester Magnum 220gr OTM Ammunition /20

Barnes Precision Match .300 Winchester Magnum 220gr OTM /20

Precision Match, engineered for precision at extreme distances, features exceptionally low standard deviations and extreme variations due to Barnes’ exacting manufacturing and quality standards. Precision Match rounds are loaded with a match grade OTM (Open Tip Match) BT projectile featuring a long boat tail and high B.C. As an additional bonus, scan the QR code located on the back of each box to view Doppler radar generated drop tables specific to each load.

Specifications
Caliber: 300 Winchester Magnum
Bullet: 220gr OTM
2775 fps
Rounds Per Box: 20
Reloadable: Yes
MPN: BB300WMM1 30740

About the Manufacturer
With the introduction of the most accurate commercially loaded round on the planet, Barnes enters the world of match ammunition in 2015 with Precision Match. As a proud supplier of precision ammunition to America’s Military Elite, Barnes makes top tier ammunition commercially available for the elite, technical shooter who demands uncompromising performance. Precision Match Ammunition delivers exceptionally accurate, long range allowing the shooter to SEND IT WITH CONFIDENCE every time.

About the 300 Winchester Magnum
The .300 Winchester Magnum (also known as .300 Win Mag or 300WM) (7.62×67mm) is a belted, bottlenecked magnum rifle cartridge that was introduced by Winchester Repeating Arms Company in 1963. The .300 Winchester Magnum is a magnum cartridge designed to fit in a standard rifle action. It is based on the .375 H&H Magnum, which has been blown out, shortened, and necked down to accept a .30 caliber (7.62 mm) bullet. The .300 Winchester is extremely versatile and has been adopted by a wide range of users including hunters, target shooters, military units, and law enforcement departments. Hunters found the cartridge to be an effective all-around choice with bullet options ranging from the flatter shooting 165 grain to the harder hitting 200+ grain selections available from the factory. The .300 Win Mag remains the most popular .30 caliber magnum with American hunters, despite being surpassed in performance by the more powerful .300 and .30-378 Weatherby Magnums and the newer .300 Remington Ultra Magnum. It is a popular selection for hunting moose, elk, and bighorn sheep as it can deliver better long range performance with better bullet weight than most other .30 caliber cartridges. Military and law enforcement departments adopted the cartridge for long range sniping and marksmanship. As a testament to its accuracy, since its introduction it has gone on to win several 1,000-yard (910 m) competitions.

Specifications
Parent case .375 H&H Magnum
Case type Belted, bottleneck
Bullet diameter .308 in (7.8 mm)
Neck diameter .339 in (8.6 mm)
Shoulder diameter .489 in (12.4 mm)
Base diameter .532 in (13.5 mm)
Rim diameter .532 in (13.5 mm)
Rim thickness .049 in (1.2 mm)
Case length 2.62 in (67 mm)
Overall length 3.34 in (85 mm)
Case capacity 93.8 gr H2O (6.08 cm3)
Rifling twist 1:10 (254 mm)
Primer type Large rifle magnum
Maximum pressure (C.I.P.) 62,366 psi (430.00 MPa)
Maximum pressure (SAAMI) 64,000 psi (440 MPa)
Maximum CUP 54,000 CUP

Ballistic performance
Bullet mass/type Velocity Energy
165 gr (10.7 g) GMX 3,260 ft/s (990 m/s) 3,893 ft·lbf (5,278 J)
180 gr (11.7 g) BT 3,146 ft/s (959 m/s) 3,972 ft·lbf (5,385 J)
190 gr (12.3 g) BTSP 3,083 ft/s (940 m/s) 4,027 ft·lbf (5,460 J)
200 gr (13.0 g) Partition 3,029 ft/s (923 m/s) 4,092 ft·lbf (5,548 J)
220 gr (14.3 g) Sierra MatchKing (HPBT) 2,850 ft/s (870 m/s) 3,908 ft·lbf (5,299 J)