Load Specifications
Load data in caliber .300 Blaser Mag. with .311 | 190gr | Prvi Partizan FMJ BT bullet and 76 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% | 52,344 psi | 86% | 2805 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 54,259 psi | 89% | 2848 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,447 psi | 89% | 2953 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 52,823 psi | 87% | 2759 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,911 psi | 90% | 2894 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 96% | 52,591 psi | 86% | 2894 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 43,888 psi | 72% | 2723 fps | 96.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,812 psi | 64% | 2684 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,824 psi | 88% | 2782 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,955 psi | 90% | 2900 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,286 psi | 86% | 2861 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,447 psi | 89% | 2884 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,156 psi | 86% | 2894 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,939 psi | 87% | 2867 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,863 psi | 80% | 2867 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 52,881 psi | 87% | 2956 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,578 psi | 90% | 2930 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 54,679 psi | 90% | 2799 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,744 psi | 73% | 2795 fps | 97.1% |
| Bofors RP5 | <<locked>> | 96% | 52,156 psi | 86% | 2894 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 53,824 psi | 88% | 2792 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,385 psi | 79% | 2815 fps | 98% |
| Hodgdon H380 | <<locked>> | 82% | 54,926 psi | 90% | 2818 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,460 psi | 86% | 2841 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 52,054 psi | 85% | 2802 fps | 99% |
| Hodgdon H4831 | <<locked>> | 94% | 52,649 psi | 86% | 2835 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,721 psi | 85% | 2818 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 51,721 psi | 85% | 2772 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,819 psi | 79% | 2920 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 86% | 52,417 psi | 86% | 2877 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,695 psi | 60% | 1755 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,085 psi | 90% | 2831 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,199 psi | 86% | 2766 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 54,520 psi | 90% | 2835 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,201 psi | 89% | 2825 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 98% | 53,751 psi | 88% | 2927 fps | 98.3% |
| Lovex S065 | <<locked>> | 86% | 52,417 psi | 86% | 2766 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 53,737 psi | 88% | 2808 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,821 psi | 82% | 2769 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 52,214 psi | 86% | 2825 fps | 98.7% |
| Norma MRP | <<locked>> | 94% | 51,721 psi | 85% | 2917 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 52,779 psi | 87% | 2828 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,360 psi | 89% | 2946 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 51,576 psi | 85% | 2831 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,272 psi | 86% | 2881 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,449 psi | 61% | 1798 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,563 psi | 90% | 2802 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,677 psi | 85% | 2851 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,940 psi | 89% | 2867 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,286 psi | 86% | 2897 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,095 psi | 79% | 2917 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 84% | 54,781 psi | 90% | 2795 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,011 psi | 87% | 2812 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 94% | 53,650 psi | 88% | 2871 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 53,824 psi | 88% | 2792 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,417 psi | 86% | 2766 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 53,737 psi | 88% | 2808 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,707 psi | 87% | 2802 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,141 psi | 86% | 2631 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 51,779 psi | 85% | 2717 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,200 psi | 87% | 2864 fps | 99.1% |
| Somchem S355 | <<locked>> | 84% | 54,824 psi | 90% | 2792 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,476 psi | 89% | 2805 fps | 97.7% |
| Somchem S365 | <<locked>> | 90% | 52,576 psi | 86% | 2831 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,476 psi | 89% | 2848 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 52,388 psi | 86% | 2717 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,824 psi | 90% | 2822 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,722 psi | 88% | 2825 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 88% | 53,867 psi | 88% | 2828 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 51,953 psi | 85% | 2844 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,851 psi | 85% | 2907 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,169 psi | 84% | 2881 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,128 psi | 89% | 2782 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,634 psi | 86% | 2844 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,910 psi | 87% | 2999 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,157 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% | 30,501 psi | 50% | 2375 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 41,220 psi | 68% | 2628 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 92% | 47,326 psi | 78% | 2828 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 49,617 psi | 81% | 2710 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 37,101 psi | 61% | 2556 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 90% | 43,033 psi | 71% | 2713 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 98% | 41,089 psi | 67% | 2664 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 94% | 32,213 psi | 53% | 2507 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,531 psi | 83% | 2733 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,682 psi | 65% | 2635 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,513 psi | 75% | 2756 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 36,912 psi | 61% | 2552 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,231 psi | 61% | 2602 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,399 psi | 48% | 2405 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,312 psi | 48% | 2418 fps | 95.7% |
| Alliant Reloder-26 | 64.9 gr | 80% | 31,517 psi | 52% | 2523 fps | 97.7% |
| Bofors RP15 | <<locked>> | 88% | 36,912 psi | 61% | 2592 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 51,285 psi | 84% | 2749 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,204 psi | 64% | 2680 fps | 95.4% |
| Bofors RP5 | <<locked>> | 86% | 37,231 psi | 61% | 2602 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 44,715 psi | 73% | 2635 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 39,523 psi | 65% | 2635 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 51,314 psi | 84% | 2762 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,062 psi | 71% | 2674 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 45,861 psi | 75% | 2690 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 43,018 psi | 71% | 2661 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,165 psi | 74% | 2703 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,333 psi | 61% | 2523 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,854 psi | 61% | 2667 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 42,061 psi | 69% | 2694 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,601 psi | 45% | 1572 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,292 psi | 66% | 2566 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,108 psi | 76% | 2661 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 39,450 psi | 65% | 2575 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 86% | 42,250 psi | 69% | 2608 fps | 95% |
| IMR 7828 SSC | <<locked>> | 90% | 41,292 psi | 68% | 2690 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 43,656 psi | 72% | 2615 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 41,989 psi | 69% | 2602 fps | 98.4% |
| Lovex S071 | <<locked>> | 84% | 29,936 psi | 49% | 2359 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 39,900 psi | 66% | 2595 fps | 96% |
| Norma MRP | 64.6 gr | 82% | 34,011 psi | 56% | 2552 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 40,843 psi | 67% | 2621 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 40,828 psi | 67% | 2694 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 39,595 psi | 65% | 2612 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 90% | 36,318 psi | 60% | 2572 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,007 psi | 46% | 1608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,097 psi | 84% | 2749 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,312 psi | 79% | 2799 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,031 psi | 67% | 2648 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,407 psi | 65% | 2657 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,765 psi | 55% | 2585 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 48,327 psi | 79% | 2700 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 41,002 psi | 67% | 2592 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 82% | 36,027 psi | 59% | 2533 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 44,715 psi | 73% | 2635 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,656 psi | 72% | 2615 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 80% | 41,989 psi | 69% | 2602 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,472 psi | 81% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,907 psi | 80% | 2585 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,612 psi | 70% | 2559 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 35,737 psi | 59% | 2526 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 48,312 psi | 79% | 2694 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,730 psi | 73% | 2638 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 37,434 psi | 61% | 2579 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,461 psi | 57% | 2467 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 46,282 psi | 76% | 2621 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,148 psi | 69% | 2615 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 36,129 psi | 59% | 2500 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 41,524 psi | 68% | 2618 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 32,779 psi | 54% | 2477 fps | 98.7% |
| Vihtavuori N560 | 69.3 gr | 88% | 42,134 psi | 69% | 2723 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 94% | 41,669 psi | 68% | 2703 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,089 psi | 67% | 2579 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,250 psi | 71% | 2677 fps | 98.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,020 psi | 43% | 2402 fps | 98.5% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,406 psi | 63% | 2556 fps | 95.8% |
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 82 powders for .300 Blaser Mag. loaded with the .311 | 190gr | Prvi Partizan FMJ BT. Winchester StaBALL HD delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,755 fps to 2,999 fps. ADI AR 2217 gives the best case fill at 100 %, and 82 of the 82 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.311" calls for a 1:13.0 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 .311 | 190gr | Prvi Partizan FMJ BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, ReloadSwiss RS 80, Vihtavuori N170 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.