Weatherby Magnum

When most people think Weatherby, the .300 Magnum is the cartridge they think of first. Based on the .300 H&H case, the .300 Magnum has the trademark (Weatherby) double radius shoulder. Cartridge cases are made by Norma with the Weatherby headstamp. They can also be made by fire-forming .300 H&H cases.

The .300 Weatherby Magnum is the most powerful .30 caliber cartridge commercially available in the world. It is the only .30 caliber magnum capable of substantially exceeding the performance of the .300 H&H. The .300 Weatherby Magnum is suitable for every species of big game in North America and thin-skinned game throughout the world.

Accurate 3100 is an excellent choice for loading the .300 Weatherby cartridge with all but the very lightest bullets. Until recently available only in Weatherby rifles, the .300 Weatherby Magnum can now be had in both Remington and Ruger rifles.

Remington currently offers both loaded ammunition and cartridge cases for handloading.

The SAAMI Maximum Average Pressure for the .300 Weatherby Magnum is 65,000 P.S.I.

.300 WEATHERBY MAGNUM

Gun

DOUGLAS

Max Length

2.825"

Barrel Length

26"

Trim Length

2.813"

Primer

FC 215

OAL Max

3.562"

Case

REM

OAL Min

3.39G"

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

P.S.I.

Length

Comment

NOS 125 BT

4350

74.7

32G5

4350

83.0

3642

63,GGG

3.56G"

3100

76.5

2985

3100

85.0

3392

45,5GG

Compressed

8700

83.7

26GG

8700

93.0

2954

33,7GG

Compressed

REM 150 PSPCL

4350

71.1

2933

4350

79.0

3333

63,3GG

3.535"

3100

76.5

2915

3100

85.0

3313

57,800

Compressed

8700

83.7

2596

8700

93.0

295G

43,7GG

Compressed

.300 WEATHERBY MAGNUM (continued)

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

P.S.I.

Length

Comment

BAR 150-X

4350

70.2

2898

4350

78.0

3293

63,000

3.560"

3100

76.5

2911

3100

85.0

3308

60,400

Compressed

8700

83.7

2575

8700

93.0

2926

44,900

Compressed

165 PSPCL

4350

69.3

2784

4350

77.0

3164

61,200

3.560"

3100

76.5

2838

3100

85.0

3225

60,400

Compressed

8700

83.7

2521

8700

93.0

2865

43,000

Compressed

BAR 165-X

4350

68.9

2790

4350

76.5

3171

62,900

3.555"

3100

76.5

2845

3100

85.0

3233

63,700

Compressed

8700

84.6

2517

8700

94.0

2860

44,500

Compressed

NOS 180 BT

4350

67.1

2692

4350

74.5

3059

63,100

3.560"

3100

73.8

2761

3100

82.0

3137

64,300

Compressed

8700

83.7

2495

8700

93.0

2835

45,200

Compressed

WIN 180 FS

4350

67.0

2669

4350

74.5

3034

60,200

3.550"

3100

72.0

2666

3100

80.0

3030

60,400

8700

84.6

2485

8700

94.0

2824

45,100

Compressed

BAR 180-X

4350

66.2

2643

4350

73.5

3003

61,800

3.560"

3100

74.7

2765

3100

83.0

3142

64,800

Compressed

8700

84.6

2520

8700

94.0

2864

48,900

Compressed

NOS 200 (Part)

4350

65.7

2589

4350

73.0

2942

65,000

3.555"

3100

72.0

2629

3100

80.0

2987

63,800

Compressed

8700

83.7

2453

8700

93.0

2787

47,500

Compressed

SRA 220 RN

4350

62.1

2379

4350

69.0

2703

62,500

3.530"

3100

69.3

2473

3100

77.0

2810

63,900

8700

83.7

2430

8700

93.0

2761

49,700

Compressed

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Hunting Mastery Selected Tips

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