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*Please keep in mind that the data is for reference only*
*case capacity calculations*
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*Caution*
Cartridge case capacity may vary 5-10% between brands.
Cartridge type - .300 Winchester Magnum
Bullet Type - .22/sabot
Bullet Weight - 55
Bullet Diameter (IN) - .308
Overall Cartridge Length (IN) - 3
Case Length (IN) - 2.61
Full Case Capacity (GR WATER) - 88
Bullet Length (IN) - .72
Barrel Length (IN) - 24
Bullet Seating Depth (IN) - .33
Displaced Water (GR) - 6.206
Effective Water Capacity Of Case (GR) - 81.794
Effective Barrel Length (IN) - 21.72
**lfd1 Cartridge Load Development** 04-26-93
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Cartridge Data - .300 Winchester Magnum
Caliber - .308 IN
Bullet Weight - 55 GR
Barrel Length - 21.72 in
Case Capacity - 81.794 GR Of Water (CALC)
Bullet Diameter- .308 in
Sectional Density - .083
Volume Ratio - 5.9
Cartridge Tempreture - 70 Degrees F.
Powder Class - MEDIUM FAST POWDERS
Powder Type - IMR-3031, RX11,H-335, AA-2230, S-3032, WW-748, N-201 *Check Manual*
Charge/Bullet Weight - 1.278
Calc. Powder Charge - 70.3 GR
Load den - 85.9%
Est. Muzzle Velocity - 4400 FT/SEC
Est. Peak Pressure - 41900 PSI
Alt Powder type: - BLC-2, H-322, RX-12, AA-2460, N-203
Powder Class - MEDIUM FAST POWDERS
Charge/Bullet Weight - 1.344
Calc. Powder Charge - 73.9 GR
Load den - 90.3%
Est. Muzzle Velocity - 4400 FT/SEC
Est. Peak Pressure - 42400 PSI
***For starting loads reduce Calc. powder charge by at least 10%***
**Alternate load information** 04-26-93
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Cartridge Data - .300 Winchester Magnum
Powder Type - IMR-3031, RX11,H-335, AA-2230, S-3032, WW-748, N-201 *Check Manual*
Load Density Charge Weight Velocity Pressure
% GR FPS PSI
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75 61.3 3800 31900
80 65.4 4100 36300
85 69.5 4300 41000
90 73.6 4600 45900 *
95 77.7 4900 51200 *
100 81.8 5100 56700 *
Powder Type - BLC-2, H-322, RX-12, AA-2460, N-203
75 61.3 3600 29200
80 65.4 3900 33200
85 69.5 4100 37500
90 73.6 4400 42100 *
95 77.7 4600 46900 *
100 81.8 4900 52000 *
* Warning -- HIGH PRESSURE - REFERENCE ONLY !
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