Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 165gr | Fox Classic Hunter 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, Alliant Reloder-26 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.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 52,402 psi | 86% | 2874 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,462 psi | 89% | 2949 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,387 psi | 84% | 2979 fps | 99.4% |
| Accurate 4064 | <<locked>> | 84% | 52,924 psi | 87% | 2933 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 53,853 psi | 88% | 3041 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 52,924 psi | 87% | 3133 fps | 97% |
| ADI AR 2208 | <<locked>> | 86% | 53,795 psi | 88% | 2972 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 51,634 psi | 85% | 3028 fps | 97.5% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 52,939 psi | 87% | 3077 fps | 96.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 52,663 psi | 86% | 3094 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 51,663 psi | 85% | 3022 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,215 psi | 89% | 2992 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,578 psi | 90% | 3015 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,824 psi | 90% | 3104 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 52,344 psi | 86% | 3071 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 54,346 psi | 89% | 3071 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,561 psi | 85% | 3074 fps | 97.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,515 psi | 80% | 3005 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,163 psi | 69% | 2917 fps | 98.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 51,808 psi | 85% | 3146 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,094 psi | 77% | 2989 fps | 96.7% |
| Bofors RP3 | <<locked>> | 86% | 54,955 psi | 90% | 3009 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,561 psi | 85% | 3074 fps | 97.8% |
| Bofors RP7 | <<locked>> | 90% | 54,636 psi | 90% | 2992 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 84% | 52,040 psi | 85% | 2972 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 90% | 52,605 psi | 86% | 3038 fps | 99% |
| Hodgdon H4350 | <<locked>> | 88% | 52,779 psi | 87% | 3002 fps | 98% |
| Hodgdon H4831 | <<locked>> | 98% | 52,939 psi | 87% | 3018 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 55,027 psi | 90% | 3022 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 53,098 psi | 87% | 3009 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 52,779 psi | 87% | 3074 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,085 psi | 59% | 1877 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,244 psi | 89% | 2979 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 53,127 psi | 87% | 2953 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 52,475 psi | 86% | 2933 fps | 98.9% |
| IMR 4350 | <<locked>> | 92% | 52,214 psi | 86% | 2972 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 52,968 psi | 87% | 2969 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 54,317 psi | 89% | 3031 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 52,547 psi | 86% | 2992 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 54,694 psi | 90% | 3012 fps | 96.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 50,285 psi | 83% | 3041 fps | 96% |
| Lovex S060 | <<locked>> | 82% | 54,897 psi | 90% | 2940 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 53,084 psi | 87% | 2943 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 52,924 psi | 87% | 2966 fps | 99.6% |
| Lovex S070 | <<locked>> | 92% | 54,027 psi | 89% | 3005 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,482 psi | 70% | 2822 fps | 98% |
| Norma 201 | <<locked>> | 82% | 54,433 psi | 89% | 2956 fps | 100% |
| Norma 203B | <<locked>> | 84% | 53,882 psi | 88% | 3002 fps | 100% |
| Norma 204 | <<locked>> | 92% | 52,620 psi | 86% | 3018 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 54,882 psi | 90% | 3163 fps | 99.3% |
| Norma URP | <<locked>> | 92% | 52,736 psi | 87% | 3028 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 54,563 psi | 90% | 3028 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 50,444 psi | 83% | 3058 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 92% | 51,532 psi | 85% | 3025 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,889 psi | 74% | 2923 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,680 psi | 60% | 1923 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 52,156 psi | 86% | 2956 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 51,895 psi | 85% | 3068 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 53,751 psi | 88% | 3064 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 52,402 psi | 86% | 3094 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,089 psi | 67% | 2930 fps | 96.7% |
| Rottweil R 902 | <<locked>> | 82% | 51,692 psi | 85% | 2907 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,042 psi | 90% | 3002 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 53,432 psi | 88% | 2999 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 98% | 53,621 psi | 88% | 3058 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 54,636 psi | 90% | 2992 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 52,924 psi | 87% | 2966 fps | 99.6% |
| Shooters World Precision | <<locked>> | 84% | 53,084 psi | 87% | 2943 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,027 psi | 89% | 3005 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 53,171 psi | 87% | 3012 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,418 psi | 89% | 2989 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 52,910 psi | 87% | 2838 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 52,547 psi | 86% | 2910 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 53,142 psi | 87% | 3051 fps | 98% |
| Somchem S335 | <<locked>> | 82% | 55,056 psi | 90% | 2881 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 51,750 psi | 85% | 2949 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 51,808 psi | 85% | 3028 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 54,056 psi | 89% | 3031 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 52,112 psi | 86% | 2867 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 52,475 psi | 86% | 2884 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 52,997 psi | 87% | 2923 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,027 psi | 90% | 3025 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,850 psi | 82% | 2943 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 84% | 54,143 psi | 89% | 2930 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,041 psi | 89% | 3028 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,346 psi | 89% | 3087 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 51,576 psi | 85% | 3087 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,795 psi | 90% | 2989 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 52,837 psi | 87% | 3041 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,627 psi | 72% | 3058 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,389 psi | 89% | 2992 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,520 psi | 90% | 3028 fps | 98% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 48,994 psi | 80% | 2825 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,587 psi | 78% | 2831 fps | 97.4% |
| Accurate 3100 | <<locked>> | 88% | 33,707 psi | 55% | 2625 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 46,470 psi | 76% | 2831 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,085 psi | 58% | 2677 fps | 97.5% |
| Accurate High Country | <<locked>> | 94% | 45,745 psi | 75% | 2999 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 44,599 psi | 73% | 2808 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 90% | 42,351 psi | 70% | 2844 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 98% | 49,269 psi | 81% | 3009 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,023 psi | 80% | 3028 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 42,250 psi | 69% | 2841 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,657 psi | 73% | 2831 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,805 psi | 78% | 2904 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,780 psi | 57% | 2697 fps | 97.7% |
| Alliant Reloder-17 | 63.8 gr | 80% | 39,276 psi | 64% | 2828 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 41,771 psi | 69% | 2831 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 42,032 psi | 69% | 2884 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,774 psi | 44% | 2484 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 92% | 32,590 psi | 54% | 2671 fps | 95.2% |
| Alliant Reloder-26 | 68.7 gr | 84% | 30,821 psi | 51% | 2664 fps | 95.4% |
| Bofors RP15 | <<locked>> | 98% | 44,048 psi | 72% | 2927 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 44,831 psi | 74% | 2841 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 42,032 psi | 69% | 2884 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 39,610 psi | 65% | 2703 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 45,440 psi | 75% | 2854 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 37,362 psi | 61% | 2733 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 80% | 40,495 psi | 66% | 2759 fps | 95% |
| Hodgdon H4831 | <<locked>> | 96% | 49,516 psi | 81% | 2959 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,198 psi | 53% | 2585 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,792 psi | 82% | 2956 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 39,146 psi | 64% | 2802 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,919 psi | 44% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,676 psi | 83% | 2920 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,891 psi | 77% | 2848 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,081 psi | 81% | 2871 fps | 98.3% |
| IMR 4350 | <<locked>> | 84% | 40,306 psi | 66% | 2740 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,176 psi | 68% | 2740 fps | 96.5% |
| IMR 4831 | <<locked>> | 80% | 33,910 psi | 56% | 2631 fps | 97.2% |
| IMR 4895 | <<locked>> | 80% | 49,081 psi | 81% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,343 psi | 84% | 2953 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 98% | 47,050 psi | 77% | 2979 fps | 95.1% |
| Lovex S060 | <<locked>> | 80% | 51,547 psi | 85% | 2887 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,876 psi | 77% | 2841 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,479 psi | 63% | 2684 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 36,738 psi | 60% | 2661 fps | 95.5% |
| Lovex S071 | <<locked>> | 94% | 34,838 psi | 57% | 2651 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 51,039 psi | 84% | 2904 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,152 psi | 77% | 2887 fps | 100% |
| Norma 204 | <<locked>> | 86% | 42,757 psi | 70% | 2831 fps | 95.1% |
| Norma MRP | <<locked>> | 90% | 38,363 psi | 63% | 2835 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 35,288 psi | 58% | 2680 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 80% | 47,572 psi | 78% | 2913 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 46,818 psi | 77% | 2986 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 34,200 psi | 56% | 2661 fps | 95.2% |
| Ramshot Magnum | <<locked>> | 98% | 41,655 psi | 68% | 2854 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,354 psi | 45% | 1719 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,571 psi | 75% | 2835 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,829 psi | 69% | 2887 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,940 psi | 57% | 2694 fps | 97.2% |
| ReloadSwiss RS 70 | 64.8 gr | 80% | 34,287 psi | 56% | 2703 fps | 96.4% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 38,319 psi | 63% | 2858 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 48,704 psi | 80% | 2858 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,192 psi | 69% | 2785 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 46,905 psi | 77% | 2884 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 92% | 43,584 psi | 72% | 2874 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 39,610 psi | 65% | 2703 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,479 psi | 63% | 2684 fps | 97.2% |
| Shooters World Precision | <<locked>> | 80% | 46,876 psi | 77% | 2841 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,738 psi | 60% | 2661 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,439 psi | 71% | 2841 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,894 psi | 84% | 2930 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,816 psi | 72% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,739 psi | 62% | 2625 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,178 psi | 71% | 2867 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 51,721 psi | 85% | 2835 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,583 psi | 70% | 2785 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 31,647 psi | 52% | 2631 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 38,754 psi | 64% | 2736 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 48,762 psi | 80% | 2818 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,240 psi | 81% | 2835 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,727 psi | 67% | 2713 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,622 psi | 60% | 2680 fps | 97.8% |
| Vihtavuori N165 | <<locked>> | 94% | 40,799 psi | 67% | 2772 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 47,529 psi | 78% | 2828 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,187 psi | 59% | 2680 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 82% | 29,298 psi | 48% | 2562 fps | 96% |
| Vihtavuori N560 | <<locked>> | 96% | 48,051 psi | 79% | 3018 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,071 psi | 59% | 2654 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 37,507 psi | 62% | 2733 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,208 psi | 41% | 2507 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,807 psi | 83% | 2936 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 43,918 psi | 72% | 2841 fps | 95.7% |
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 92 powders for .300 Blaser Mag. loaded with the .308 | 165gr | Fox Classic Hunter. Norma MRP delivers the highest muzzle velocity at 3,163 fps; across all powders the maximum-charge window runs from 1,877 fps to 3,163 fps. Accurate 3100 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 59–90 %, 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, ADI AR 2213, 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-26, Alliant Reloder-17 rank at the top here: for .300 Blaser 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.