Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 190gr | Nosler AccuBond Long Range 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 MAGPRO 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.
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 3100 | <<locked>> | 98% | 54,302 psi | 89% | 2828 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 52,808 psi | 87% | 2818 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 52,634 psi | 86% | 2917 fps | 97% |
| ADI AR 2208 | <<locked>> | 84% | 55,027 psi | 90% | 2785 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,461 psi | 88% | 2867 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 98% | 54,665 psi | 90% | 2920 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,739 psi | 62% | 2651 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,779 psi | 87% | 2762 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,476 psi | 88% | 2874 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,650 psi | 90% | 2894 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,055 psi | 87% | 2858 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,012 psi | 89% | 2917 fps | 99.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,752 psi | 90% | 2894 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,413 psi | 78% | 2838 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 55,056 psi | 90% | 2986 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,953 psi | 87% | 2897 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 53,388 psi | 88% | 2776 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 43,308 psi | 71% | 2762 fps | 96.6% |
| Bofors RP5 | <<locked>> | 98% | 54,012 psi | 89% | 2917 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 52,707 psi | 87% | 2769 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,891 psi | 77% | 2779 fps | 97.5% |
| Hodgdon H380 | <<locked>> | 82% | 53,708 psi | 88% | 2795 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,795 psi | 90% | 2874 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 54,302 psi | 89% | 2828 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 96% | 54,897 psi | 90% | 2864 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,693 psi | 88% | 2844 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,867 psi | 88% | 2799 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,427 psi | 76% | 2884 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 88% | 54,752 psi | 90% | 2910 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,608 psi | 60% | 1745 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,592 psi | 90% | 2769 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,882 psi | 88% | 2805 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,186 psi | 89% | 2792 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 53,171 psi | 87% | 2812 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,910 psi | 87% | 2795 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 98% | 52,417 psi | 86% | 2897 fps | 98% |
| Lovex S062 | <<locked>> | 82% | 54,824 psi | 90% | 2759 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,694 psi | 90% | 2792 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 52,663 psi | 86% | 2785 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,385 psi | 79% | 2740 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 54,505 psi | 89% | 2858 fps | 98.9% |
| Norma MRP | <<locked>> | 96% | 53,606 psi | 88% | 2940 fps | 99.8% |
| Norma URP | <<locked>> | 90% | 54,868 psi | 90% | 2854 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,562 psi | 86% | 2910 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 53,693 psi | 88% | 2861 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,618 psi | 83% | 2848 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,376 psi | 61% | 1788 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,519 psi | 88% | 2779 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,954 psi | 89% | 2877 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 52,605 psi | 86% | 2844 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,607 psi | 90% | 2927 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,456 psi | 76% | 2877 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 84% | 53,490 psi | 88% | 2772 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,100 psi | 90% | 2835 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 94% | 52,388 psi | 86% | 2844 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 52,707 psi | 87% | 2769 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,694 psi | 90% | 2792 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 54,824 psi | 90% | 2759 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 52,663 psi | 86% | 2785 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,926 psi | 90% | 2831 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,375 psi | 89% | 2654 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,998 psi | 89% | 2743 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 51,938 psi | 85% | 2838 fps | 98.9% |
| Somchem S355 | <<locked>> | 84% | 53,592 psi | 88% | 2769 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,055 psi | 87% | 2772 fps | 97.2% |
| Somchem S365 | <<locked>> | 92% | 54,462 psi | 89% | 2854 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,837 psi | 87% | 2818 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 86% | 54,665 psi | 90% | 2743 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,447 psi | 88% | 2799 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 52,141 psi | 86% | 2792 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 88% | 52,620 psi | 86% | 2802 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,853 psi | 88% | 2871 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 53,737 psi | 88% | 2933 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,429 psi | 81% | 2848 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,765 psi | 87% | 2759 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,795 psi | 90% | 2874 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,604 psi | 83% | 2969 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,837 psi | 87% | 2812 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% | 29,646 psi | 49% | 2349 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 40,190 psi | 66% | 2602 fps | 99.6% |
| Accurate MAGPRO | 72.1 gr | 92% | 45,774 psi | 75% | 2795 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 48,617 psi | 80% | 2687 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 38,638 psi | 63% | 2585 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 90% | 42,018 psi | 69% | 2684 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 96% | 33,199 psi | 55% | 2530 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,443 psi | 81% | 2710 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,711 psi | 64% | 2608 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,295 psi | 73% | 2730 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,406 psi | 63% | 2579 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 86% | 36,289 psi | 60% | 2575 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,631 psi | 47% | 2382 fps | 98.4% |
| Alliant Reloder-25 | <<locked>> | 84% | 28,558 psi | 47% | 2388 fps | 95% |
| Alliant Reloder-26 | 63.4 gr | 80% | 30,661 psi | 50% | 2497 fps | 97.2% |
| Bofors RP15 | <<locked>> | 90% | 38,261 psi | 63% | 2618 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 49,966 psi | 82% | 2726 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 40,495 psi | 66% | 2703 fps | 95.7% |
| Bofors RP5 | <<locked>> | 86% | 36,289 psi | 60% | 2575 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 43,787 psi | 72% | 2612 fps | 98% |
| Hodgdon H1000 | <<locked>> | 96% | 41,147 psi | 68% | 2661 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 50,328 psi | 83% | 2743 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 41,916 psi | 69% | 2648 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 44,759 psi | 73% | 2664 fps | 97.6% |
| Hodgdon H4831 | <<locked>> | 90% | 44,846 psi | 74% | 2690 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 44,063 psi | 72% | 2674 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,318 psi | 60% | 2500 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 35,926 psi | 59% | 2635 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 40,915 psi | 67% | 2664 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,499 psi | 45% | 1562 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,126 psi | 84% | 2717 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,262 psi | 64% | 2539 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,194 psi | 74% | 2638 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 38,479 psi | 63% | 2552 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 43,888 psi | 72% | 2635 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 92% | 42,844 psi | 70% | 2717 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 51,648 psi | 85% | 2713 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,699 psi | 70% | 2589 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 40,886 psi | 67% | 2575 fps | 98.1% |
| Lovex S071 | <<locked>> | 84% | 29,124 psi | 48% | 2333 fps | 95% |
| Norma 204 | <<locked>> | 80% | 38,885 psi | 64% | 2569 fps | 95.5% |
| Norma MRP | 63.1 gr | 82% | 33,083 psi | 54% | 2526 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 39,668 psi | 65% | 2592 fps | 99.4% |
| Ramshot Grand | <<locked>> | 92% | 42,627 psi | 70% | 2723 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 38,522 psi | 63% | 2585 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 90% | 35,230 psi | 58% | 2543 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,079 psi | 46% | 1601 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,995 psi | 82% | 2723 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,036 psi | 77% | 2776 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,885 psi | 65% | 2621 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,435 psi | 63% | 2631 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,186 psi | 58% | 2618 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 47,079 psi | 77% | 2674 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,772 psi | 70% | 2621 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 84% | 37,478 psi | 62% | 2562 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 43,787 psi | 72% | 2612 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,699 psi | 70% | 2589 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 51,648 psi | 85% | 2713 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,886 psi | 67% | 2575 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,298 psi | 79% | 2730 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,066 psi | 79% | 2566 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,756 psi | 69% | 2536 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 37,159 psi | 61% | 2556 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 47,282 psi | 78% | 2671 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,601 psi | 77% | 2667 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 36,201 psi | 59% | 2549 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,766 psi | 59% | 2493 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 45,092 psi | 74% | 2598 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,162 psi | 68% | 2592 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 35,244 psi | 58% | 2474 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 40,625 psi | 67% | 2595 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 31,778 psi | 52% | 2454 fps | 98.4% |
| Vihtavuori N560 | <<locked>> | 90% | 43,830 psi | 72% | 2749 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 96% | 43,163 psi | 71% | 2730 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,190 psi | 66% | 2559 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,105 psi | 69% | 2651 fps | 98.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,309 psi | 42% | 2369 fps | 98% |
| Winchester Supreme 780 | <<locked>> | 86% | 37,318 psi | 61% | 2530 fps | 95.2% |
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 84 powders for .300 Blaser Mag. loaded with the .308 | 190gr | Nosler AccuBond Long Range. Alliant Reloder-26 delivers the highest muzzle velocity at 2,986 fps; across all powders the maximum-charge window runs from 1,745 fps to 2,986 fps. ADI AR 2217 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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 MAGPRO, Norma MRP rank at the top here: for .300 Blaser Mag. with the .308 | 190gr | Nosler AccuBond Long Range they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, Norma 217, ReloadSwiss RS 80 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.