Load Specifications
Bullet Manufacturer:Fox Bullets
Bullet Weight:165 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 Win. Mag. load data
Case Length (l3):2.62"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:90.5 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:11.5
Load data in caliber .300 Win. Mag. with .308 | 165gr | Fox Classic Hunter bullet and 99 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 53,693 psi | 86% | 2835 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 56,028 psi | 90% | 2907 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,689 psi | 78% | 2867 fps | 98.5% |
| Accurate 4064 | <<locked>> | 86% | 54,027 psi | 87% | 2887 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,897 psi | 88% | 2992 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 82% | 53,896 psi | 86% | 2923 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 55,245 psi | 89% | 2927 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 52,779 psi | 85% | 2972 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,217 psi | 90% | 2920 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,143 psi | 87% | 3048 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 54,679 psi | 88% | 2933 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,622 psi | 89% | 2949 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,999 psi | 90% | 2972 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,854 psi | 90% | 3051 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,534 psi | 86% | 3025 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,361 psi | 89% | 3018 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,820 psi | 78% | 2949 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,079 psi | 74% | 2897 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,292 psi | 65% | 2799 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,779 psi | 85% | 3091 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,838 psi | 86% | 2936 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 56,260 psi | 90% | 2966 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,820 psi | 78% | 2949 fps | 96.3% |
| Bofors RP7 | <<locked>> | 92% | 55,970 psi | 90% | 2943 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,072 psi | 90% | 2949 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 53,229 psi | 85% | 2923 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 92% | 53,882 psi | 86% | 2989 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 90% | 54,012 psi | 87% | 2949 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 82% | 54,520 psi | 87% | 2930 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 56,173 psi | 90% | 2972 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,708 psi | 88% | 2969 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,085 psi | 87% | 3025 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,868 psi | 58% | 1827 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,593 psi | 89% | 2933 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,027 psi | 88% | 2910 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,708 psi | 88% | 2910 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 53,940 psi | 86% | 2887 fps | 98.5% |
| IMR 4350 | <<locked>> | 94% | 53,345 psi | 86% | 2920 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,375 psi | 87% | 2920 fps | 98.5% |
| IMR 4831 | <<locked>> | 96% | 55,419 psi | 89% | 2982 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 53,751 psi | 86% | 2946 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 56,115 psi | 90% | 2963 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 82% | 56,217 psi | 90% | 2920 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 53,969 psi | 87% | 2894 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 53,127 psi | 85% | 2848 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,534 psi | 87% | 2904 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,085 psi | 87% | 2913 fps | 99.4% |
| Lovex S070 | <<locked>> | 94% | 55,332 psi | 89% | 2956 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,263 psi | 65% | 2710 fps | 96.6% |
| Norma 201 | <<locked>> | 84% | 55,898 psi | 90% | 2913 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,214 psi | 85% | 2864 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,230 psi | 89% | 2956 fps | 100% |
| Norma 204 | <<locked>> | 94% | 53,998 psi | 87% | 2969 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 51,880 psi | 83% | 3038 fps | 98.3% |
| Norma URP | <<locked>> | 94% | 53,954 psi | 87% | 2979 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 86% | 56,217 psi | 90% | 2986 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 56,318 psi | 90% | 3031 fps | 99.5% |
| Ramshot TAC | <<locked>> | 82% | 56,260 psi | 90% | 2943 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,492 psi | 59% | 1870 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,490 psi | 86% | 2907 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,069 psi | 85% | 2982 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 53,171 psi | 85% | 3022 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,940 psi | 88% | 3018 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,606 psi | 86% | 3041 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 84% | 53,258 psi | 85% | 2867 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,362 psi | 90% | 2959 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,592 psi | 88% | 2946 fps | 96.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,534 psi | 87% | 3005 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 92% | 55,970 psi | 90% | 2943 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,085 psi | 87% | 2913 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 82% | 53,969 psi | 87% | 2894 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,534 psi | 87% | 2904 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,332 psi | 89% | 2956 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,505 psi | 87% | 2969 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,969 psi | 88% | 2923 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,883 psi | 90% | 2946 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,780 psi | 86% | 2802 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,534 psi | 87% | 2802 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,012 psi | 87% | 2867 fps | 98.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,070 psi | 87% | 2999 fps | 97.5% |
| Somchem S335 | <<locked>> | 82% | 53,258 psi | 85% | 2795 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,766 psi | 88% | 2913 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,434 psi | 90% | 2956 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 56,376 psi | 90% | 3031 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,100 psi | 88% | 2976 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 82% | 54,288 psi | 87% | 2785 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 53,316 psi | 85% | 2825 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 53,940 psi | 86% | 2844 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,389 psi | 87% | 2881 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 56,202 psi | 90% | 2976 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,413 psi | 76% | 2831 fps | 96.4% |
| Vihtavuori N540 | <<locked>> | 86% | 55,419 psi | 89% | 2887 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,230 psi | 89% | 2979 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,329 psi | 82% | 2976 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,173 psi | 90% | 2946 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,128 psi | 87% | 2992 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,307 psi | 66% | 2933 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 56,173 psi | 90% | 2956 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,851 psi | 83% | 2913 fps | 96.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 47,065 psi | 75% | 2736 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,934 psi | 74% | 2733 fps | 96.2% |
| Accurate 3100 | <<locked>> | 92% | 36,695 psi | 59% | 2631 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 44,585 psi | 71% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,344 psi | 53% | 2569 fps | 96.1% |
| ADI AR 2206H | <<locked>> | 80% | 50,444 psi | 81% | 2864 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,859 psi | 69% | 2710 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 94% | 46,195 psi | 74% | 2851 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,620 psi | 84% | 2867 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,876 psi | 75% | 2920 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 51,126 psi | 82% | 2874 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,004 psi | 69% | 2736 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,963 psi | 74% | 2802 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,243 psi | 53% | 2585 fps | 96.2% |
| Alliant Reloder-17 | 60.9 gr | 80% | 37,550 psi | 60% | 2720 fps | 99.1% |
| Alliant Reloder-19 | <<locked>> | 94% | 45,600 psi | 73% | 2841 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 45,759 psi | 73% | 2890 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,282 psi | 44% | 2434 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 96% | 35,404 psi | 57% | 2674 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 88% | 33,692 psi | 54% | 2677 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,401 psi | 81% | 2881 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 42,989 psi | 69% | 2743 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 45,759 psi | 73% | 2890 fps | 95.5% |
| Bofors RP7 | <<locked>> | 82% | 40,727 psi | 65% | 2661 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,228 psi | 84% | 2894 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,555 psi | 70% | 2749 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 40,988 psi | 66% | 2746 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 84% | 44,396 psi | 71% | 2772 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 51,024 psi | 82% | 2877 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,632 psi | 49% | 2480 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,529 psi | 76% | 2854 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 40,321 psi | 65% | 2759 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,847 psi | 43% | 1637 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,849 psi | 78% | 2825 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,488 psi | 83% | 2861 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,049 psi | 72% | 2746 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,485 psi | 76% | 2776 fps | 97.4% |
| IMR 4350 | <<locked>> | 86% | 41,408 psi | 66% | 2697 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,610 psi | 64% | 2638 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 32,430 psi | 52% | 2530 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 47,181 psi | 76% | 2835 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 52,518 psi | 84% | 2900 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 52,620 psi | 84% | 2867 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,372 psi | 81% | 2838 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,980 psi | 80% | 2795 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,194 psi | 72% | 2746 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,072 psi | 59% | 2585 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 40,176 psi | 64% | 2674 fps | 95.7% |
| Lovex S071 | <<locked>> | 98% | 37,637 psi | 60% | 2651 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 49,313 psi | 79% | 2812 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,966 psi | 80% | 2812 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,324 psi | 73% | 2789 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 46,963 psi | 75% | 2848 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 42,018 psi | 67% | 2844 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 33,649 psi | 54% | 2572 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 80% | 45,513 psi | 73% | 2808 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 37,449 psi | 60% | 2674 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 52,779 psi | 85% | 2887 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,122 psi | 43% | 1673 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,888 psi | 70% | 2733 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,472 psi | 79% | 2920 fps | 99.8% |
| ReloadSwiss RS 60 | 60.9 gr | 80% | 40,016 psi | 64% | 2785 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,228 psi | 53% | 2585 fps | 95.6% |
| ReloadSwiss RS 70 | 63.4 gr | 82% | 35,244 psi | 57% | 2657 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 46,978 psi | 75% | 2762 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,350 psi | 65% | 2684 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 51,242 psi | 82% | 2890 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 94% | 44,512 psi | 71% | 2822 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 82% | 40,727 psi | 65% | 2661 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,072 psi | 59% | 2585 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,372 psi | 81% | 2838 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,194 psi | 72% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 40,176 psi | 64% | 2674 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,582 psi | 67% | 2740 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,372 psi | 82% | 2867 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,008 psi | 79% | 2835 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,430 psi | 81% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,337 psi | 68% | 2615 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,711 psi | 62% | 2582 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 44,092 psi | 71% | 2815 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 50,082 psi | 80% | 2749 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,242 psi | 82% | 2858 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,988 psi | 66% | 2690 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 30,110 psi | 48% | 2523 fps | 98.2% |
| Somchem S385 | <<locked>> | 92% | 42,264 psi | 68% | 2746 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 50,981 psi | 82% | 2740 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,978 psi | 75% | 2733 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,355 psi | 76% | 2743 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,044 psi | 63% | 2618 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 34,998 psi | 56% | 2575 fps | 96.5% |
| Vihtavuori N165 | <<locked>> | 98% | 44,425 psi | 71% | 2776 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 45,701 psi | 73% | 2736 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,534 psi | 55% | 2575 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 29,718 psi | 48% | 2513 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,577 psi | 55% | 2552 fps | 98.5% |
| Winchester 760 | <<locked>> | 84% | 41,147 psi | 66% | 2749 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 88% | 27,398 psi | 44% | 2516 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,921 psi | 78% | 2841 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 48,211 psi | 77% | 2851 fps | 95.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 99 powders for .300 Win. Mag. loaded with the .308 | 165gr | Fox Classic Hunter. Alliant Reloder-26 delivers the highest muzzle velocity at 3,091 fps; across all powders the maximum-charge window runs from 1,827 fps to 3,091 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, Alliant Reloder-22 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 Win. Mag. with the .308 | 165gr | Fox Classic Hunter they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.