Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 184gr | RWS Evolution bullet and 78 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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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 98% | 54,984 psi | 90% | 2887 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 53,243 psi | 87% | 2877 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 52,301 psi | 86% | 2972 fps | 98% |
| Accurate MAGPRO | <<locked>> | 96% | 53,330 psi | 88% | 2976 fps | 97% |
| ADI AR 2208 | <<locked>> | 82% | 52,156 psi | 86% | 2792 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,853 psi | 88% | 2923 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 96% | 51,532 psi | 85% | 2917 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,101 psi | 63% | 2700 fps | 97.3% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 54,056 psi | 89% | 2920 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,011 psi | 87% | 2815 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,911 psi | 89% | 2930 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,969 psi | 90% | 2946 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,388 psi | 88% | 2910 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,636 psi | 90% | 2976 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 51,938 psi | 85% | 2904 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,935 psi | 79% | 2897 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 51,590 psi | 85% | 2986 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,577 psi | 88% | 2959 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 53,824 psi | 88% | 2831 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 43,787 psi | 72% | 2818 fps | 96.5% |
| Bofors RP5 | <<locked>> | 98% | 54,636 psi | 90% | 2976 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 53,040 psi | 87% | 2822 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,297 psi | 78% | 2831 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 82% | 54,056 psi | 89% | 2851 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,085 psi | 90% | 2927 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 54,752 psi | 90% | 2887 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 94% | 51,808 psi | 85% | 2861 fps | 96.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,099 psi | 89% | 2900 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,215 psi | 89% | 2851 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,876 psi | 77% | 2940 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 86% | 51,503 psi | 85% | 2907 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,622 psi | 60% | 1785 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,897 psi | 90% | 2825 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,201 psi | 89% | 2861 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,708 psi | 90% | 2851 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 53,476 psi | 88% | 2864 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,258 psi | 87% | 2851 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 98% | 52,794 psi | 87% | 2953 fps | 97.9% |
| Lovex S065 | <<locked>> | 88% | 54,897 psi | 90% | 2848 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 52,852 psi | 87% | 2838 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,965 psi | 80% | 2795 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 54,882 psi | 90% | 2913 fps | 98.9% |
| Norma MRP | <<locked>> | 96% | 54,157 psi | 89% | 2999 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 51,822 psi | 85% | 2858 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,272 psi | 87% | 2972 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 54,070 psi | 89% | 2917 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,184 psi | 84% | 2904 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,362 psi | 61% | 1827 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,737 psi | 88% | 2835 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,418 psi | 89% | 2936 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,055 psi | 87% | 2897 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,114 psi | 90% | 2986 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,079 psi | 77% | 2936 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 84% | 53,925 psi | 89% | 2828 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,069 psi | 85% | 2838 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 94% | 52,779 psi | 87% | 2900 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 53,040 psi | 87% | 2822 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,897 psi | 90% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 52,852 psi | 87% | 2838 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 51,837 psi | 85% | 2835 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,447 psi | 89% | 2707 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,360 psi | 89% | 2799 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 52,330 psi | 86% | 2894 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 53,780 psi | 88% | 2825 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,650 psi | 88% | 2831 fps | 97.2% |
| Somchem S365 | <<locked>> | 92% | 54,984 psi | 90% | 2913 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 53,374 psi | 88% | 2874 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 86% | 54,984 psi | 90% | 2795 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,838 psi | 88% | 2854 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 52,765 psi | 87% | 2851 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 88% | 52,895 psi | 87% | 2858 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 54,230 psi | 89% | 2927 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,302 psi | 89% | 2989 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,082 psi | 82% | 2904 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,272 psi | 87% | 2815 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 51,721 psi | 85% | 2874 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,416 psi | 84% | 3028 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,243 psi | 87% | 2867 fps | 98.8% |
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 3100 | <<locked>> | 80% | 29,878 psi | 49% | 2392 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 40,480 psi | 66% | 2654 fps | 99.5% |
| Accurate High Country | 69.9 gr | 88% | 42,540 psi | 70% | 2789 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 92% | 46,137 psi | 76% | 2848 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 48,994 psi | 80% | 2743 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 38,928 psi | 64% | 2635 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 90% | 42,235 psi | 69% | 2736 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 33,504 psi | 55% | 2575 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,073 psi | 64% | 2638 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,792 psi | 82% | 2766 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,059 psi | 64% | 2661 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,643 psi | 73% | 2785 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,682 psi | 64% | 2628 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,088 psi | 64% | 2684 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,877 psi | 47% | 2428 fps | 98.3% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,661 psi | 50% | 2493 fps | 96% |
| Alliant Reloder-26 | 65.4 gr | 80% | 30,835 psi | 51% | 2539 fps | 97% |
| Bofors RP15 | <<locked>> | 90% | 38,566 psi | 63% | 2671 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 50,256 psi | 83% | 2779 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,017 psi | 67% | 2759 fps | 95.6% |
| Bofors RP5 | <<locked>> | 88% | 39,088 psi | 64% | 2684 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 44,121 psi | 72% | 2664 fps | 98% |
| Hodgdon H1000 | <<locked>> | 96% | 41,495 psi | 68% | 2713 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 50,560 psi | 83% | 2795 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,308 psi | 69% | 2700 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 80% | 44,976 psi | 74% | 2717 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 45,252 psi | 74% | 2746 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 44,280 psi | 73% | 2726 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,666 psi | 60% | 2552 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,216 psi | 59% | 2684 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 41,205 psi | 68% | 2717 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 45% | 1598 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,517 psi | 85% | 2772 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,523 psi | 65% | 2589 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,281 psi | 74% | 2687 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 38,769 psi | 64% | 2605 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,222 psi | 73% | 2687 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 92% | 43,178 psi | 71% | 2769 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 43,033 psi | 71% | 2644 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 41,191 psi | 68% | 2625 fps | 98% |
| Lovex S071 | <<locked>> | 86% | 31,256 psi | 51% | 2431 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 39,218 psi | 64% | 2621 fps | 95.4% |
| Norma MRP | 65.1 gr | 82% | 33,315 psi | 55% | 2572 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 39,958 psi | 66% | 2644 fps | 99.4% |
| Ramshot Grand | <<locked>> | 92% | 42,873 psi | 70% | 2776 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 38,841 psi | 64% | 2638 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 90% | 35,621 psi | 58% | 2592 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,992 psi | 46% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,357 psi | 83% | 2779 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,398 psi | 78% | 2831 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,219 psi | 66% | 2671 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,667 psi | 63% | 2680 fps | 99% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,447 psi | 58% | 2664 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 47,384 psi | 78% | 2730 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,033 psi | 71% | 2671 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 84% | 37,811 psi | 62% | 2612 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 44,121 psi | 72% | 2664 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,033 psi | 71% | 2644 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 41,191 psi | 68% | 2625 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,675 psi | 80% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,327 psi | 79% | 2621 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,003 psi | 69% | 2585 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 37,463 psi | 62% | 2608 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 47,645 psi | 78% | 2726 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,905 psi | 77% | 2717 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 36,521 psi | 60% | 2602 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,100 psi | 59% | 2543 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 45,426 psi | 75% | 2651 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,437 psi | 68% | 2641 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 35,418 psi | 58% | 2523 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 40,828 psi | 67% | 2644 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 32,097 psi | 53% | 2500 fps | 98.3% |
| Vihtavuori N560 | <<locked>> | 90% | 44,353 psi | 73% | 2808 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 96% | 43,555 psi | 72% | 2782 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,364 psi | 66% | 2605 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,308 psi | 69% | 2700 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,527 psi | 42% | 2415 fps | 97.8% |
| Winchester Supreme 780 | <<locked>> | 86% | 37,637 psi | 62% | 2579 fps | 95.1% |
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 78 powders for .300 Blaser Mag. loaded with the .308 | 184gr | RWS Evolution. Winchester StaBALL HD delivers the highest muzzle velocity at 3,028 fps; across all powders the maximum-charge window runs from 1,785 fps to 3,028 fps. ADI AR 2225 gives the best case fill at 100 %, and 78 of the 78 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 184.0 gr projectile in 0.308" calls for a 1:13.0 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. Alliant Reloder-26, Accurate High Country, Norma MRP rank at the top here: for .300 Blaser Mag. with the .308 | 184gr | RWS Evolution 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.