Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 167gr | Sax KDG-S bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country and Norma MRP.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 54,969 psi | 90% | 2887 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 52,620 psi | 86% | 2900 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,983 psi | 89% | 2999 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 51,982 psi | 85% | 2894 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 52,301 psi | 86% | 2995 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 55,071 psi | 90% | 3150 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 84% | 52,054 psi | 85% | 2923 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,359 psi | 88% | 3038 fps | 98% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,679 psi | 90% | 3091 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,476 psi | 89% | 3100 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,461 psi | 88% | 3035 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 52,692 psi | 87% | 2946 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 52,808 psi | 87% | 2966 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 53,113 psi | 87% | 3054 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,331 psi | 89% | 3081 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 52,736 psi | 87% | 3025 fps | 97.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,548 psi | 88% | 3087 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,517 psi | 83% | 3015 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,135 psi | 72% | 2940 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,360 psi | 89% | 3163 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,008 psi | 80% | 3005 fps | 97.3% |
| Bofors RP3 | <<locked>> | 84% | 53,534 psi | 88% | 2963 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,548 psi | 88% | 3087 fps | 98.3% |
| Bofors RP7 | <<locked>> | 88% | 53,011 psi | 87% | 2946 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 84% | 53,896 psi | 88% | 2979 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 54,505 psi | 89% | 3048 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 54,491 psi | 89% | 3009 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 98% | 54,969 psi | 90% | 3035 fps | 96.4% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,766 psi | 88% | 3015 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,621 psi | 88% | 2979 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,940 psi | 90% | 3015 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,149 psi | 71% | 2969 fps | 96.4% |
| Hodgdon Superformance | <<locked>> | 90% | 54,708 psi | 90% | 3087 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,376 psi | 60% | 1870 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,810 psi | 90% | 2956 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,027 psi | 89% | 2940 fps | 99.1% |
| IMR 4350 | <<locked>> | 92% | 53,896 psi | 88% | 2979 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,534 psi | 90% | 2972 fps | 99.1% |
| IMR 4831 | <<locked>> | 92% | 52,895 psi | 87% | 2989 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,186 psi | 89% | 2995 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,953 psi | 87% | 2966 fps | 96.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,112 psi | 86% | 3058 fps | 96.6% |
| Lovex S062 | <<locked>> | 84% | 54,926 psi | 90% | 2949 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,781 psi | 90% | 2972 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 52,605 psi | 86% | 2959 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,701 psi | 73% | 2844 fps | 98.5% |
| Norma 203B | <<locked>> | 82% | 52,112 psi | 86% | 2953 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,650 psi | 90% | 3035 fps | 98% |
| Norma MRP | <<locked>> | 98% | 53,113 psi | 87% | 3114 fps | 99.2% |
| Norma URP | <<locked>> | 92% | 54,679 psi | 90% | 3038 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 52,736 psi | 87% | 2976 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,359 psi | 86% | 3074 fps | 97% |
| Ramshot Hunter | <<locked>> | 92% | 53,592 psi | 88% | 3038 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,760 psi | 77% | 2943 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,057 psi | 61% | 1913 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,650 psi | 88% | 2959 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,809 psi | 88% | 3074 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 52,141 psi | 86% | 3018 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,549 psi | 90% | 3107 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,076 psi | 71% | 2959 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 82% | 53,621 psi | 88% | 2913 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,606 psi | 88% | 2959 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 51,793 psi | 85% | 2953 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 96% | 52,040 psi | 85% | 3012 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 88% | 53,011 psi | 87% | 2946 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,781 psi | 90% | 2972 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 54,926 psi | 90% | 2949 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 52,605 psi | 86% | 2959 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,027 psi | 90% | 3018 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,534 psi | 90% | 2841 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,360 psi | 89% | 2920 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 51,576 psi | 85% | 3009 fps | 97.9% |
| Somchem S355 | <<locked>> | 86% | 53,664 psi | 88% | 2956 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 53,388 psi | 88% | 2943 fps | 96% |
| Somchem S365 | <<locked>> | 94% | 53,969 psi | 89% | 3038 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 52,634 psi | 86% | 2989 fps | 98.7% |
| Vihtavuori N135 | <<locked>> | 82% | 53,809 psi | 88% | 2867 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,244 psi | 89% | 2884 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,882 psi | 90% | 2930 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 53,171 psi | 87% | 2976 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,953 psi | 85% | 2959 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 82% | 52,402 psi | 86% | 2881 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 52,388 psi | 86% | 2979 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 53,098 psi | 87% | 3045 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 53,505 psi | 88% | 3100 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 52,881 psi | 87% | 2943 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,737 psi | 90% | 3051 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,803 psi | 75% | 3081 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 52,808 psi | 87% | 2982 fps | 97.8% |
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% | 51,488 psi | 85% | 2835 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,255 psi | 81% | 2841 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 33,417 psi | 55% | 2595 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 48,791 psi | 80% | 2844 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,101 psi | 61% | 2703 fps | 98.2% |
| Accurate High Country | 73.2 gr | 92% | 44,512 psi | 73% | 2949 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 45,934 psi | 75% | 2815 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,947 psi | 72% | 2858 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 96% | 47,790 psi | 78% | 2959 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,807 psi | 83% | 3041 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 41,234 psi | 68% | 2799 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,441 psi | 76% | 2841 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,603 psi | 81% | 2913 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,143 psi | 59% | 2713 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,002 psi | 67% | 2844 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,410 psi | 71% | 2848 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,930 psi | 67% | 2841 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,556 psi | 44% | 2457 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,111 psi | 53% | 2638 fps | 95.1% |
| Alliant Reloder-26 | 67.2 gr | 82% | 30,269 psi | 50% | 2628 fps | 95.2% |
| Bofors RP15 | <<locked>> | 96% | 43,033 psi | 71% | 2884 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 46,847 psi | 77% | 2854 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,930 psi | 67% | 2841 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 41,234 psi | 68% | 2720 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 47,079 psi | 77% | 2861 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 39,030 psi | 64% | 2749 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 42,061 psi | 69% | 2772 fps | 95.6% |
| Hodgdon H4831 | <<locked>> | 96% | 51,242 psi | 84% | 2972 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,183 psi | 82% | 2953 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,678 psi | 55% | 2602 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,372 psi | 84% | 2959 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,466 psi | 66% | 2900 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 38,116 psi | 63% | 2759 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 45% | 1673 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,298 psi | 79% | 2851 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,589 psi | 83% | 2881 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 39,334 psi | 65% | 2700 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,641 psi | 70% | 2753 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 35,679 psi | 59% | 2654 fps | 97.9% |
| IMR 4895 | <<locked>> | 80% | 50,850 psi | 83% | 2943 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,777 psi | 82% | 2907 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 98% | 48,805 psi | 80% | 2995 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 48,689 psi | 80% | 2851 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,161 psi | 66% | 2700 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 38,450 psi | 63% | 2680 fps | 96.2% |
| Lovex S071 | <<locked>> | 92% | 34,635 psi | 57% | 2628 fps | 95.8% |
| Norma 203B | <<locked>> | 80% | 48,979 psi | 80% | 2897 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,396 psi | 73% | 2848 fps | 95.8% |
| Norma MRP | 70 gr | 88% | 37,478 psi | 62% | 2792 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 37,014 psi | 61% | 2700 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 49,313 psi | 81% | 2920 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 45,484 psi | 75% | 2940 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 35,795 psi | 59% | 2680 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 96% | 40,480 psi | 66% | 2812 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,731 psi | 46% | 1713 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,268 psi | 78% | 2848 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,555 psi | 72% | 2900 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,796 psi | 60% | 2717 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,853 psi | 59% | 2726 fps | 97.2% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,434 psi | 61% | 2815 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 50,328 psi | 83% | 2861 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,179 psi | 73% | 2802 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,556 psi | 75% | 2838 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 42,496 psi | 70% | 2831 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 41,234 psi | 68% | 2720 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,161 psi | 66% | 2700 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 48,689 psi | 80% | 2851 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,450 psi | 63% | 2680 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,136 psi | 74% | 2851 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,339 psi | 74% | 2703 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,378 psi | 65% | 2644 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,105 psi | 69% | 2825 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 44,396 psi | 73% | 2799 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,038 psi | 82% | 2887 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 33,417 psi | 55% | 2654 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 37,898 psi | 62% | 2700 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 50,647 psi | 83% | 2822 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,937 psi | 84% | 2838 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,453 psi | 70% | 2723 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,305 psi | 63% | 2697 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 92% | 39,885 psi | 65% | 2733 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 49,037 psi | 81% | 2828 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,739 psi | 62% | 2697 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 29,138 psi | 48% | 2536 fps | 96.1% |
| Vihtavuori N560 | <<locked>> | 96% | 49,922 psi | 82% | 3035 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,579 psi | 62% | 2667 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 39,218 psi | 64% | 2756 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,048 psi | 41% | 2480 fps | 95.6% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,772 psi | 70% | 2799 fps | 95.5% |
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 89 powders for .300 Blaser Mag. loaded with the .308 | 167gr | Sax KDG-S. Alliant Reloder-26 delivers the highest muzzle velocity at 3,163 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,163 fps. Accurate 3100 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 167.0 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. Alliant Reloder-26, Accurate High Country, Norma MRP rank at the top here: for .300 Blaser Mag. with the .308 | 167gr | Sax KDG-S 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.