Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 180gr | Norma VULKAN bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and Alliant Reloder-26.
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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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 52,431 psi | 86% | 2887 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 54,230 psi | 89% | 2930 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 53,519 psi | 88% | 3031 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 96% | 54,592 psi | 90% | 3035 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 82% | 52,895 psi | 87% | 2844 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,911 psi | 90% | 2979 fps | 99% |
| ADI AR 2213 | <<locked>> | 96% | 52,634 psi | 86% | 2976 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,986 psi | 64% | 2756 fps | 97.6% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 51,648 psi | 85% | 2917 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,795 psi | 88% | 2867 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,911 psi | 90% | 2986 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,475 psi | 86% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,433 psi | 89% | 2966 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,185 psi | 86% | 2972 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,055 psi | 87% | 2953 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,936 psi | 80% | 2949 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,084 psi | 87% | 3041 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,694 psi | 90% | 3012 fps | 99% |
| Bofors RP3 | <<locked>> | 82% | 54,752 psi | 90% | 2884 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,817 psi | 74% | 2871 fps | 96.7% |
| Bofors RP5 | <<locked>> | 96% | 52,185 psi | 86% | 2972 fps | 98.8% |
| Bofors RP7 | <<locked>> | 86% | 53,983 psi | 89% | 2877 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,385 psi | 79% | 2890 fps | 97.7% |
| Hodgdon H380 | <<locked>> | 82% | 54,897 psi | 90% | 2904 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,591 psi | 86% | 2927 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 84% | 52,170 psi | 86% | 2884 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 94% | 52,736 psi | 87% | 2917 fps | 97.1% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,619 psi | 85% | 2897 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 51,938 psi | 85% | 2858 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,022 psi | 79% | 3002 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 86% | 52,533 psi | 86% | 2959 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,680 psi | 60% | 1821 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 51,764 psi | 85% | 2861 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,199 psi | 86% | 2848 fps | 99.4% |
| IMR 4831 | <<locked>> | 90% | 54,592 psi | 90% | 2920 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,186 psi | 89% | 2907 fps | 97.5% |
| IMR 7828 SSC | <<locked>> | 98% | 53,882 psi | 88% | 3009 fps | 98.1% |
| Lovex S065 | <<locked>> | 86% | 52,591 psi | 86% | 2851 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 53,722 psi | 88% | 2890 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,024 psi | 82% | 2848 fps | 99.7% |
| Norma 204 | <<locked>> | 88% | 52,431 psi | 86% | 2910 fps | 98.5% |
| Norma MRP | <<locked>> | 94% | 51,692 psi | 85% | 2995 fps | 99.6% |
| Norma URP | <<locked>> | 88% | 52,765 psi | 87% | 2910 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,520 psi | 90% | 3031 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 88% | 51,735 psi | 85% | 2917 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,475 psi | 86% | 2963 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,405 psi | 61% | 1864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,708 psi | 90% | 2887 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,779 psi | 85% | 2936 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,085 psi | 89% | 2953 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,301 psi | 86% | 2979 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,109 psi | 79% | 2995 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 54,839 psi | 90% | 2881 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,982 psi | 87% | 2890 fps | 97.8% |
| Rottweil R 905 | <<locked>> | 94% | 53,911 psi | 89% | 2956 fps | 99% |
| Rottweil R 907 | <<locked>> | 86% | 53,983 psi | 89% | 2877 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,591 psi | 86% | 2851 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 53,722 psi | 88% | 2890 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,837 psi | 87% | 2890 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,141 psi | 86% | 2713 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 51,866 psi | 85% | 2799 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,490 psi | 88% | 2953 fps | 98.9% |
| Somchem S355 | <<locked>> | 84% | 54,723 psi | 90% | 2874 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,636 psi | 90% | 2884 fps | 97.4% |
| Somchem S365 | <<locked>> | 90% | 52,649 psi | 86% | 2917 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,375 psi | 89% | 2930 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 84% | 52,446 psi | 86% | 2799 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,766 psi | 90% | 2907 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,867 psi | 88% | 2904 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 88% | 53,925 psi | 89% | 2910 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,083 psi | 86% | 2930 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,808 psi | 85% | 2986 fps | 97.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,314 psi | 84% | 2963 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,288 psi | 89% | 2867 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,779 psi | 87% | 2930 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,011 psi | 87% | 3084 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,360 psi | 89% | 2920 fps | 98.9% |
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 3100 | <<locked>> | 80% | 30,501 psi | 50% | 2441 fps | 95.3% |
| Accurate 4350 | <<locked>> | 80% | 41,249 psi | 68% | 2703 fps | 99.6% |
| Accurate High Country | <<locked>> | 88% | 43,482 psi | 71% | 2841 fps | 95.9% |
| Accurate MAGPRO | <<locked>> | 92% | 47,268 psi | 78% | 2904 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 49,559 psi | 81% | 2792 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,639 psi | 65% | 2687 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 90% | 43,018 psi | 71% | 2789 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 96% | 34,287 psi | 56% | 2631 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,784 psi | 65% | 2687 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,633 psi | 83% | 2818 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,798 psi | 65% | 2713 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,484 psi | 75% | 2835 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,378 psi | 65% | 2680 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,391 psi | 61% | 2677 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,341 psi | 48% | 2470 fps | 98.4% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,327 psi | 48% | 2484 fps | 95.1% |
| Alliant Reloder-26 | 67.7 gr | 80% | 31,589 psi | 52% | 2592 fps | 97.2% |
| Bofors RP15 | <<locked>> | 90% | 39,450 psi | 65% | 2723 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 51,256 psi | 84% | 2831 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,262 psi | 64% | 2753 fps | 95% |
| Bofors RP5 | <<locked>> | 86% | 37,391 psi | 61% | 2677 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 44,628 psi | 73% | 2710 fps | 98% |
| Hodgdon H1000 | <<locked>> | 96% | 42,206 psi | 69% | 2766 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 51,445 psi | 84% | 2848 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,960 psi | 71% | 2749 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 45,847 psi | 75% | 2769 fps | 97.7% |
| Hodgdon H4831 | <<locked>> | 90% | 46,064 psi | 76% | 2795 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,121 psi | 74% | 2779 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,304 psi | 61% | 2598 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,898 psi | 61% | 2740 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 41,930 psi | 69% | 2766 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,441 psi | 45% | 1627 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,292 psi | 66% | 2641 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,963 psi | 75% | 2736 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 39,465 psi | 65% | 2654 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,918 psi | 74% | 2740 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 92% | 44,179 psi | 73% | 2825 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 43,555 psi | 72% | 2690 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 41,872 psi | 69% | 2674 fps | 98.1% |
| Lovex S071 | <<locked>> | 84% | 29,979 psi | 49% | 2425 fps | 95% |
| Norma 204 | <<locked>> | 80% | 39,972 psi | 66% | 2671 fps | 95.6% |
| Norma MRP | 67.4 gr | 82% | 34,084 psi | 56% | 2625 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 40,698 psi | 67% | 2694 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 40,843 psi | 67% | 2769 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 39,610 psi | 65% | 2687 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 36,405 psi | 60% | 2644 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,992 psi | 46% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,126 psi | 84% | 2831 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,312 psi | 79% | 2884 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,017 psi | 67% | 2723 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,508 psi | 65% | 2733 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,924 psi | 56% | 2654 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 48,196 psi | 79% | 2779 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,845 psi | 72% | 2723 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 84% | 38,551 psi | 63% | 2664 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 44,628 psi | 73% | 2710 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,555 psi | 72% | 2690 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 41,872 psi | 69% | 2674 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,545 psi | 81% | 2838 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,979 psi | 80% | 2667 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,641 psi | 70% | 2635 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,189 psi | 63% | 2657 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 48,254 psi | 79% | 2776 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,686 psi | 73% | 2710 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 37,449 psi | 61% | 2654 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,418 psi | 56% | 2533 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 46,166 psi | 76% | 2700 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,134 psi | 69% | 2690 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 36,187 psi | 59% | 2572 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 41,611 psi | 68% | 2694 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 32,808 psi | 54% | 2549 fps | 98.4% |
| Vihtavuori N560 | 74 gr | 90% | 45,339 psi | 74% | 2864 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 96% | 44,817 psi | 74% | 2841 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,162 psi | 68% | 2657 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,163 psi | 71% | 2753 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,063 psi | 43% | 2464 fps | 98.1% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,537 psi | 63% | 2631 fps | 95.4% |
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 77 powders for .300 Blaser Mag. loaded with the .308 | 180gr | Norma VULKAN. Winchester StaBALL HD delivers the highest muzzle velocity at 3,084 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,084 fps. ADI AR 2225 gives the best case fill at 100 %, and 77 of the 77 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 180.0 gr projectile in 0.308" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP15 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for .300 Blaser Mag. with the .308 | 180gr | Norma VULKAN 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.