Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 190gr | Berger VLD Target bullet and 78 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% | 52,286 psi | 86% | 2805 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 53,954 psi | 89% | 2841 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 53,505 psi | 88% | 2953 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 96% | 54,143 psi | 89% | 2946 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 52,750 psi | 87% | 2759 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,853 psi | 90% | 2894 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 96% | 52,547 psi | 86% | 2894 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 43,859 psi | 72% | 2723 fps | 96.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,754 psi | 64% | 2684 fps | 97.9% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 55,071 psi | 90% | 2890 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,722 psi | 88% | 2782 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,868 psi | 90% | 2897 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,199 psi | 86% | 2861 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,346 psi | 89% | 2884 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,054 psi | 85% | 2894 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,852 psi | 87% | 2867 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,791 psi | 80% | 2867 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 52,750 psi | 87% | 2956 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,520 psi | 90% | 2930 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 54,578 psi | 90% | 2799 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,672 psi | 73% | 2795 fps | 97.1% |
| Bofors RP5 | <<locked>> | 96% | 52,054 psi | 85% | 2894 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 53,737 psi | 88% | 2792 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,124 psi | 79% | 2808 fps | 97.9% |
| Hodgdon H380 | <<locked>> | 82% | 54,839 psi | 90% | 2818 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,373 psi | 86% | 2841 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 51,967 psi | 85% | 2799 fps | 99% |
| Hodgdon H4831 | <<locked>> | 94% | 52,562 psi | 86% | 2835 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,459 psi | 84% | 2815 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 51,634 psi | 85% | 2772 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,747 psi | 78% | 2920 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 86% | 52,344 psi | 86% | 2877 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,767 psi | 60% | 1759 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,013 psi | 90% | 2831 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,112 psi | 86% | 2766 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 54,433 psi | 89% | 2835 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,143 psi | 89% | 2825 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 98% | 53,664 psi | 88% | 2927 fps | 98.3% |
| Lovex S065 | <<locked>> | 86% | 52,330 psi | 86% | 2762 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 53,664 psi | 88% | 2808 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,763 psi | 82% | 2766 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 52,141 psi | 86% | 2825 fps | 98.7% |
| Norma MRP | <<locked>> | 94% | 51,634 psi | 85% | 2913 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 52,692 psi | 87% | 2828 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,273 psi | 89% | 2946 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 90% | 55,100 psi | 90% | 2887 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,243 psi | 86% | 2881 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,536 psi | 62% | 1798 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,476 psi | 89% | 2805 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,837 psi | 85% | 2851 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,867 psi | 88% | 2867 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,228 psi | 86% | 2894 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,848 psi | 79% | 2913 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 84% | 54,679 psi | 90% | 2795 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,910 psi | 87% | 2808 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 94% | 53,577 psi | 88% | 2871 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 53,737 psi | 88% | 2792 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,330 psi | 86% | 2762 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 53,664 psi | 88% | 2808 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,620 psi | 86% | 2802 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,098 psi | 86% | 2631 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 51,721 psi | 85% | 2717 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,127 psi | 87% | 2864 fps | 99.1% |
| Somchem S355 | <<locked>> | 84% | 54,723 psi | 90% | 2792 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,404 psi | 89% | 2802 fps | 97.6% |
| Somchem S365 | <<locked>> | 90% | 52,489 psi | 86% | 2831 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,157 psi | 89% | 2844 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 52,301 psi | 86% | 2713 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,505 psi | 89% | 2818 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,606 psi | 88% | 2822 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 88% | 53,795 psi | 88% | 2828 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 51,866 psi | 85% | 2844 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,793 psi | 85% | 2907 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,879 psi | 84% | 2877 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,070 psi | 89% | 2782 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,562 psi | 86% | 2844 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,837 psi | 87% | 2999 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,099 psi | 89% | 2838 fps | 99.1% |
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% | 30,429 psi | 50% | 2372 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 41,162 psi | 68% | 2625 fps | 99.7% |
| Accurate High Country | <<locked>> | 86% | 40,495 psi | 66% | 2707 fps | 95.4% |
| Accurate MAGPRO | <<locked>> | 92% | 47,050 psi | 77% | 2825 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 49,516 psi | 81% | 2710 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 37,043 psi | 61% | 2556 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 90% | 42,975 psi | 71% | 2713 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 98% | 41,046 psi | 67% | 2664 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 96% | 34,200 psi | 56% | 2562 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 37,202 psi | 61% | 2556 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,415 psi | 83% | 2733 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,624 psi | 65% | 2635 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,426 psi | 75% | 2753 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 36,869 psi | 61% | 2549 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,159 psi | 61% | 2602 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,327 psi | 48% | 2405 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,269 psi | 48% | 2418 fps | 95.7% |
| Alliant Reloder-26 | 64.8 gr | 80% | 31,459 psi | 52% | 2523 fps | 97.6% |
| Bofors RP15 | <<locked>> | 88% | 36,840 psi | 60% | 2592 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 51,184 psi | 84% | 2749 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,117 psi | 64% | 2677 fps | 95.4% |
| Bofors RP5 | <<locked>> | 86% | 37,159 psi | 61% | 2602 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 44,614 psi | 73% | 2631 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 39,450 psi | 65% | 2631 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 51,213 psi | 84% | 2762 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,975 psi | 71% | 2674 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 45,774 psi | 75% | 2690 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 42,960 psi | 71% | 2661 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,092 psi | 74% | 2703 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,420 psi | 61% | 2526 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,796 psi | 60% | 2667 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 41,989 psi | 69% | 2690 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 45% | 1568 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,205 psi | 66% | 2566 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,021 psi | 76% | 2661 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 39,363 psi | 65% | 2575 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 86% | 42,177 psi | 69% | 2608 fps | 95% |
| IMR 7828 SSC | <<locked>> | 90% | 41,234 psi | 68% | 2690 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 43,569 psi | 72% | 2612 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 41,901 psi | 69% | 2598 fps | 98.4% |
| Lovex S071 | <<locked>> | 84% | 29,892 psi | 49% | 2359 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 39,813 psi | 65% | 2595 fps | 96% |
| Norma MRP | 64.5 gr | 82% | 33,939 psi | 56% | 2552 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 40,741 psi | 67% | 2618 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 40,770 psi | 67% | 2694 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 39,508 psi | 65% | 2612 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 90% | 36,274 psi | 60% | 2572 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,050 psi | 46% | 1608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,010 psi | 84% | 2749 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,225 psi | 79% | 2799 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,944 psi | 67% | 2648 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,523 psi | 65% | 2661 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,678 psi | 55% | 2582 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 48,283 psi | 79% | 2697 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 40,930 psi | 67% | 2589 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 82% | 36,143 psi | 59% | 2536 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 44,614 psi | 73% | 2631 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,569 psi | 72% | 2612 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 80% | 41,901 psi | 69% | 2598 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,371 psi | 81% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,805 psi | 80% | 2585 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,554 psi | 70% | 2559 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 35,810 psi | 59% | 2530 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 48,211 psi | 79% | 2694 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,686 psi | 73% | 2638 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 37,347 psi | 61% | 2579 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,389 psi | 56% | 2467 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 46,180 psi | 76% | 2621 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,061 psi | 69% | 2615 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 36,056 psi | 59% | 2500 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 41,437 psi | 68% | 2615 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 32,677 psi | 54% | 2477 fps | 98.7% |
| Vihtavuori N560 | 69.2 gr | 88% | 42,047 psi | 69% | 2720 fps | 95% |
| Vihtavuori N565 | <<locked>> | 94% | 41,553 psi | 68% | 2703 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,017 psi | 67% | 2579 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,163 psi | 71% | 2677 fps | 98.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,991 psi | 43% | 2402 fps | 98.5% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,334 psi | 63% | 2556 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 78 powders for .300 Blaser Mag. loaded with the .308 | 190gr | Berger VLD Target. Winchester StaBALL HD delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,759 fps to 2,999 fps. ADI AR 2217 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 190.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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 | 190gr | Berger VLD Target 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.