Load Specifications
Load data in caliber .300 Win. Mag. with .3085 | 150gr | Prvi Partizan FMJ bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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.
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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% | 53,998 psi | 87% | 2972 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,912 psi | 90% | 3031 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,733 psi | 78% | 2989 fps | 97.9% |
| Accurate 4064 | <<locked>> | 86% | 54,331 psi | 87% | 3028 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,766 psi | 88% | 3120 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 53,708 psi | 86% | 3051 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,911 psi | 88% | 3058 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,985 psi | 90% | 3153 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,898 psi | 90% | 3051 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,838 psi | 86% | 3179 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,492 psi | 89% | 3081 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,666 psi | 89% | 3104 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,448 psi | 89% | 3179 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,113 psi | 85% | 3153 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,042 psi | 88% | 3136 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,876 psi | 74% | 3015 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,147 psi | 64% | 2904 fps | 96.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,373 psi | 84% | 3209 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,519 psi | 86% | 3061 fps | 99.7% |
| Bofors RP3 | <<locked>> | 88% | 56,304 psi | 90% | 3097 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 55,825 psi | 90% | 3068 fps | 97.8% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,709 psi | 89% | 3081 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 53,127 psi | 85% | 3051 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 92% | 53,577 psi | 86% | 3114 fps | 98% |
| Hodgdon H4350 | <<locked>> | 90% | 53,650 psi | 86% | 3071 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 82% | 54,302 psi | 87% | 3061 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,709 psi | 89% | 3100 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,172 psi | 87% | 3094 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 53,838 psi | 86% | 3146 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,071 psi | 58% | 1932 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,390 psi | 89% | 3064 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,665 psi | 88% | 3045 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,288 psi | 87% | 3038 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 53,737 psi | 86% | 3012 fps | 97.9% |
| IMR 4350 | <<locked>> | 94% | 53,084 psi | 85% | 3041 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,041 psi | 87% | 3041 fps | 97.9% |
| IMR 4831 | <<locked>> | 96% | 55,114 psi | 88% | 3110 fps | 99.8% |
| IMR 4895 | <<locked>> | 84% | 53,621 psi | 86% | 3077 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,898 psi | 90% | 3051 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 53,867 psi | 86% | 3028 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,217 psi | 90% | 3028 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,534 psi | 87% | 3035 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,041 psi | 87% | 3041 fps | 98.9% |
| Lovex S070 | <<locked>> | 94% | 55,114 psi | 88% | 3077 fps | 98.3% |
| Norma 201 | <<locked>> | 84% | 55,854 psi | 90% | 3048 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,142 psi | 85% | 2995 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,926 psi | 88% | 3087 fps | 100% |
| Norma 204 | <<locked>> | 94% | 53,650 psi | 86% | 3087 fps | 96.1% |
| Norma MRPᴾ | <<locked>> | 100% | 51,517 psi | 83% | 3156 fps | 97.6% |
| Norma URP | <<locked>> | 94% | 53,505 psi | 86% | 3104 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 86% | 55,825 psi | 90% | 3114 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 56,043 psi | 90% | 3159 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 56,217 psi | 90% | 3074 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,246 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,680 psi | 59% | 1978 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,388 psi | 86% | 3035 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 52,750 psi | 85% | 3110 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 52,678 psi | 84% | 3150 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,563 psi | 87% | 3140 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,316 psi | 85% | 3166 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 84% | 53,069 psi | 85% | 2995 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,144 psi | 90% | 3091 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,288 psi | 87% | 3123 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 92% | 55,825 psi | 90% | 3068 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,041 psi | 87% | 3041 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 53,867 psi | 86% | 3028 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,534 psi | 87% | 3035 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,114 psi | 88% | 3077 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,186 psi | 87% | 3094 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,853 psi | 88% | 3051 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,709 psi | 89% | 3077 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,461 psi | 86% | 2930 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,157 psi | 87% | 2933 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 53,780 psi | 86% | 2986 fps | 97.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,780 psi | 86% | 3120 fps | 96.6% |
| Somchem S335 | <<locked>> | 82% | 53,127 psi | 85% | 2927 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,462 psi | 87% | 3038 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,289 psi | 90% | 3087 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 55,927 psi | 90% | 3163 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,056 psi | 88% | 3100 fps | 97.7% |
| Vihtavuori N133 | <<locked>> | 82% | 53,911 psi | 86% | 2917 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 53,069 psi | 85% | 2959 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 53,650 psi | 86% | 2972 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,114 psi | 87% | 3009 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,869 psi | 90% | 3100 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 86% | 55,259 psi | 89% | 3018 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,868 psi | 88% | 3100 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,343 psi | 82% | 3100 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,738 psi | 89% | 3071 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 53,809 psi | 86% | 3117 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,336 psi | 66% | 3045 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,854 psi | 90% | 3084 fps | 100% |
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% | 47,514 psi | 76% | 2871 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,745 psi | 73% | 2844 fps | 95.3% |
| Accurate 3100 | <<locked>> | 94% | 39,682 psi | 64% | 2805 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 44,962 psi | 72% | 2871 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,663 psi | 54% | 2684 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 50,459 psi | 81% | 2995 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 42,830 psi | 69% | 2831 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 96% | 49,168 psi | 79% | 3028 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,518 psi | 84% | 2999 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,615 psi | 75% | 3045 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,989 psi | 69% | 2858 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,006 psi | 74% | 2930 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,344 psi | 53% | 2694 fps | 95.2% |
| Alliant Reloder-17 | 63.6 gr | 80% | 37,420 psi | 60% | 2831 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 96% | 48,443 psi | 78% | 3018 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 86% | 29,341 psi | 47% | 2598 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 98% | 37,695 psi | 60% | 2841 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 90% | 36,434 psi | 58% | 2858 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,067 psi | 80% | 3002 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 42,975 psi | 69% | 2864 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 46,195 psi | 74% | 2894 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,112 psi | 84% | 3025 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,584 psi | 70% | 2867 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 86% | 43,714 psi | 70% | 2920 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 86% | 47,094 psi | 76% | 2946 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 50,981 psi | 82% | 3009 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,792 psi | 49% | 2589 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,427 psi | 76% | 2979 fps | 99.9% |
| Hodgdon Superformance | 74 gr | 88% | 46,485 psi | 75% | 3005 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,774 psi | 43% | 1726 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,791 psi | 78% | 2953 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 51,126 psi | 82% | 2992 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,976 psi | 72% | 2871 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,456 psi | 76% | 2897 fps | 96.6% |
| IMR 4350 | <<locked>> | 88% | 43,990 psi | 71% | 2867 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 82% | 42,148 psi | 68% | 2808 fps | 95% |
| IMR 4831 | <<locked>> | 82% | 34,809 psi | 56% | 2700 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 47,195 psi | 76% | 2959 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 52,518 psi | 84% | 2999 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,299 psi | 81% | 2969 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,647 psi | 80% | 2920 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 45,078 psi | 72% | 2871 fps | 99.8% |
| Lovex S065 | <<locked>> | 80% | 37,246 psi | 60% | 2700 fps | 95% |
| Lovex S070 | <<locked>> | 86% | 42,830 psi | 69% | 2844 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 49,414 psi | 79% | 2943 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,835 psi | 80% | 2943 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,411 psi | 73% | 2913 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 50,241 psi | 81% | 3028 fps | 95.3% |
| Norma MRP | <<locked>> | 96% | 44,962 psi | 72% | 3022 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 33,678 psi | 54% | 2684 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 45,310 psi | 73% | 2930 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 40,161 psi | 64% | 2851 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 52,475 psi | 84% | 3012 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,417 psi | 84% | 3031 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,209 psi | 44% | 1768 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,743 psi | 70% | 2848 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,356 psi | 79% | 3051 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,798 psi | 64% | 2904 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,853 psi | 57% | 2762 fps | 95.7% |
| ReloadSwiss RS 70 | 67.9 gr | 84% | 37,840 psi | 61% | 2831 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 46,949 psi | 75% | 2887 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 40,437 psi | 65% | 2805 fps | 99% |
| Rottweil R 905 | <<locked>> | 96% | 47,471 psi | 76% | 2999 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 86% | 46,195 psi | 74% | 2894 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,246 psi | 60% | 2700 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,299 psi | 81% | 2969 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,078 psi | 72% | 2871 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 42,830 psi | 69% | 2844 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,640 psi | 67% | 2861 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,256 psi | 82% | 2989 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,008 psi | 79% | 2959 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,343 psi | 81% | 2881 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,308 psi | 68% | 2736 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 41,437 psi | 66% | 2753 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 50,256 psi | 81% | 3054 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 50,125 psi | 80% | 2881 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,952 psi | 82% | 2979 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 41,104 psi | 66% | 2812 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 30,240 psi | 48% | 2631 fps | 97.3% |
| Somchem S385 | <<locked>> | 94% | 45,136 psi | 72% | 2920 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 50,792 psi | 81% | 2871 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,934 psi | 75% | 2861 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,210 psi | 76% | 2871 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,102 psi | 63% | 2736 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 35,128 psi | 56% | 2690 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 45,687 psi | 73% | 2861 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,650 psi | 56% | 2687 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 86% | 32,169 psi | 52% | 2684 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,606 psi | 55% | 2661 fps | 97.8% |
| Winchester 760 | <<locked>> | 86% | 43,918 psi | 70% | 2927 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,602 psi | 47% | 2687 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,820 psi | 78% | 2966 fps | 99.9% |
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 110 powders for .300 Win. Mag. loaded with the .3085 | 150gr | Prvi Partizan FMJ. Alliant Reloder-26 delivers the highest muzzle velocity at 3,209 fps; across all powders the maximum-charge window runs from 1,932 fps to 3,209 fps. Accurate 3100 gives the best case fill at 100 %, and 110 of the 110 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 150.0 gr projectile in 0.3085" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 Win. Mag. with the .3085 | 150gr | Prvi Partizan FMJ they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.