* Please keep in mind that the data is for reference only *
* Caution * case capacity calculations *
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Cartridge case capacity may vary 5-10% between brands.
Cartridge Type - .300 Weatherby Magnum
Bullet Type - .22/sabot
Bullet Weight - 55
Butllet Diameter (IN) - .308
Overall Cartridge Length (IN) - 3.2
Case Length (IN) - 2.815
Full Case Capacity (GR WATER) - 98
Bullet Length (IN) - .72
Barrel Length (IN) - 24
Bullet Seating Depth (IN) - .335
Displaced Water (GR) - 6.3
Effective Water Capacity of Case (GR) - 91.7
Effective Barrel Length (IN) - 21.52
**1fd 1 Cartridge Load Development/** 4-26-93
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Cartridge Data - .300 Weatherby Magnum
Caliber -.308 IN
Bullet Weight - 55 GR
Barrel Length - 21.52 in
Case Capacity - 91.7 GR of Water (CALC)
Bullet Diameter - .308
Sectional Density - .083
Volume Ratio - 5.3
Cartridge Temperature - 70 Degrees F.
Powder Class - MEDIUM FAST POWDERS
Powder Type - IMR-4895, H-4895, S-4065, AA-2495 *Check Manual*
Charge/ Bullet Weight - 1.435
Calc. Powder Charge - 78.9 GR
Load Den - 86%
Est. Muzzle Velocity - 4400 FT/SEC
Est. Peak Pressure - 40200 PSI
Alt Powder Type - IMR-4060, H-380, AA-2520 *Check Manual*
Powder Class - MEDIUM FAST POWDERS
Charge/ Bullet Weight - 1.362
Calc. Powder Charge - 74.9 GR
Load Den - 81.6%
Est. Muzzle Velocity - 4300 FT/SEC
Est. Peak Pressure - 38000 PSI
**For starting loads reduce Calc. powder charge by at least 10%**
**Alternate load information** 04-23-93
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Cartridge Type - .300 Weatherby Magnum
Powder Type - IMR-4895, H-4895, S-4065, AA-2495 *Check Manual*
Load Density Charge Weight Velocity Pressure
% GR FPS PSI
75 68.8 3800 30600
80 73.4 4100 34800
85 77.9 4300 39200
90 82.5 4600 44000*
95 87.1 4900 49000*
100 97.1 5100 54300*
Alt Powder Type - IMR-4060, H-380, AA-2520
75 68.8 3900 32100
80 73.4 4200 36500
85 77.9 4500 41100
90 82.5 4700 46100*
95 87.1 5000 51400*
100 91.7 5300 57000*
* Warning - HIGH PRESSURE - REFERENCE ONLY !