Load Specifications
Load data in caliber .300 Blaser Mag. with .310 | 200gr | Rhino Solid Shank bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and IMR 7828 SSC.
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% | 54,998 psi | 90% | 2779 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 53,026 psi | 87% | 2759 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 53,476 psi | 88% | 2874 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 82% | 54,824 psi | 90% | 2723 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 53,780 psi | 88% | 2812 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 55,100 psi | 90% | 2871 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,021 psi | 76% | 2713 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,741 psi | 67% | 2674 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,925 psi | 89% | 2812 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,926 psi | 90% | 2828 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 53,417 psi | 88% | 2805 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,795 psi | 90% | 2867 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 52,214 psi | 86% | 2789 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,387 psi | 84% | 2844 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 52,112 psi | 86% | 2871 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 53,838 psi | 88% | 2779 fps | 96% |
| Bofors RP15 | <<locked>> | 98% | 53,737 psi | 88% | 2851 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,311 psi | 78% | 2782 fps | 98.2% |
| Bofors RP5 | <<locked>> | 96% | 54,795 psi | 90% | 2867 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 52,518 psi | 86% | 2707 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,749 psi | 83% | 2799 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 86% | 54,781 psi | 90% | 2812 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 54,215 psi | 89% | 2772 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 94% | 55,071 psi | 90% | 2812 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,143 psi | 89% | 2795 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,157 psi | 89% | 2736 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,299 psi | 83% | 2904 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 55,027 psi | 90% | 2851 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,912 psi | 61% | 1716 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,896 psi | 88% | 2749 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,114 psi | 89% | 2736 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 53,505 psi | 88% | 2753 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 52,997 psi | 87% | 2746 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 96% | 52,765 psi | 87% | 2848 fps | 98.7% |
| Lovex S065 | <<locked>> | 86% | 54,505 psi | 89% | 2733 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 52,591 psi | 86% | 2726 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,431 psi | 86% | 2740 fps | 100% |
| Norma 204 | <<locked>> | 88% | 54,534 psi | 90% | 2802 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 36,390 psi | 60% | 2602 fps | 97.3% |
| Norma MRP | <<locked>> | 94% | 54,549 psi | 90% | 2890 fps | 100% |
| Norma URP | <<locked>> | 86% | 51,750 psi | 85% | 2746 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 53,171 psi | 87% | 2864 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 53,954 psi | 89% | 2802 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 51,242 psi | 84% | 2802 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,710 psi | 62% | 1759 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,375 psi | 89% | 2815 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 52,866 psi | 87% | 2782 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,926 psi | 90% | 2864 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,734 psi | 83% | 2904 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 45,701 psi | 75% | 2785 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 82% | 53,592 psi | 88% | 2710 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 51,851 psi | 85% | 2730 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 92% | 52,678 psi | 86% | 2792 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 84% | 52,518 psi | 86% | 2707 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,505 psi | 89% | 2733 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 52,591 psi | 86% | 2726 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,955 psi | 90% | 2766 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,838 psi | 88% | 2585 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,838 psi | 88% | 2687 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 52,243 psi | 86% | 2785 fps | 99.3% |
| Somchem S355 | <<locked>> | 82% | 53,577 psi | 88% | 2707 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 53,171 psi | 87% | 2723 fps | 98% |
| Somchem S365 | <<locked>> | 88% | 51,779 psi | 85% | 2749 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 53,258 psi | 87% | 2766 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 54,534 psi | 90% | 2677 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 53,476 psi | 88% | 2736 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 52,736 psi | 87% | 2746 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 86% | 52,620 psi | 86% | 2743 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,636 psi | 90% | 2815 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,549 psi | 90% | 2887 fps | 98.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,998 psi | 89% | 2864 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 46,992 psi | 77% | 2795 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 52,866 psi | 87% | 2700 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,027 psi | 90% | 2815 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 52,460 psi | 86% | 2917 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,084 psi | 87% | 2759 fps | 99.3% |
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% | 32,213 psi | 53% | 2362 fps | 97.1% |
| Accurate 4350 | <<locked>> | 80% | 43,366 psi | 71% | 2602 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 43,192 psi | 71% | 2687 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 51,503 psi | 85% | 2674 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 36,361 psi | 60% | 2480 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 86% | 39,392 psi | 65% | 2579 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 96% | 40,306 psi | 66% | 2595 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 92% | 31,763 psi | 52% | 2444 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,568 psi | 68% | 2608 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,659 psi | 78% | 2720 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,260 psi | 60% | 2477 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 82% | 34,345 psi | 56% | 2477 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,937 psi | 51% | 2392 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 27,108 psi | 45% | 2297 fps | 95.2% |
| Alliant Reloder-26 | 65.1 gr | 80% | 33,359 psi | 55% | 2516 fps | 98.8% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 50,633 psi | 83% | 2726 fps | 95.2% |
| Bofors RP15 | <<locked>> | 86% | 36,376 psi | 60% | 2523 fps | 95.8% |
| Bofors RP30 | <<locked>> | 92% | 36,332 psi | 60% | 2556 fps | 95.1% |
| Bofors RP5 | <<locked>> | 82% | 34,345 psi | 56% | 2477 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 46,499 psi | 76% | 2608 fps | 99% |
| Hodgdon H1000 | <<locked>> | 92% | 38,798 psi | 64% | 2566 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 45,078 psi | 74% | 2651 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 47,587 psi | 78% | 2661 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 86% | 42,221 psi | 69% | 2589 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 41,292 psi | 68% | 2569 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,218 psi | 64% | 2500 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 34,113 psi | 56% | 2543 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 44,222 psi | 73% | 2674 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,644 psi | 45% | 1532 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,989 psi | 69% | 2543 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,848 psi | 79% | 2631 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 41,350 psi | 68% | 2552 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 41,336 psi | 68% | 2533 fps | 95.4% |
| IMR 7828 SSC | 66.9 gr | 88% | 40,393 psi | 66% | 2615 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 45,426 psi | 75% | 2585 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 43,598 psi | 72% | 2572 fps | 99.1% |
| Lovex S071 | <<locked>> | 80% | 27,775 psi | 46% | 2244 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 41,771 psi | 69% | 2579 fps | 97.2% |
| Norma 217 | <<locked>> | 96% | 31,981 psi | 53% | 2487 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 33,417 psi | 55% | 2484 fps | 96.4% |
| Norma URP | <<locked>> | 80% | 42,598 psi | 70% | 2592 fps | 99.9% |
| Ramshot Grand | <<locked>> | 86% | 37,405 psi | 61% | 2559 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 41,481 psi | 68% | 2589 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 86% | 33,170 psi | 54% | 2444 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,253 psi | 46% | 1572 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,575 psi | 83% | 2762 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,149 psi | 71% | 2625 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,350 psi | 68% | 2638 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 31,024 psi | 51% | 2454 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 42,380 psi | 70% | 2720 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 50,285 psi | 83% | 2661 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 40,161 psi | 66% | 2516 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 35,447 psi | 58% | 2461 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 46,499 psi | 76% | 2608 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,426 psi | 75% | 2585 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 43,598 psi | 72% | 2572 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,634 psi | 85% | 2717 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,705 psi | 83% | 2546 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,324 psi | 73% | 2533 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 35,128 psi | 58% | 2454 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 50,314 psi | 83% | 2657 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 40,930 psi | 67% | 2507 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 39,523 psi | 65% | 2552 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,998 psi | 59% | 2448 fps | 96.7% |
| Vihtavuori N150 | <<locked>> | 80% | 48,008 psi | 79% | 2585 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,077 psi | 72% | 2585 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 33,330 psi | 55% | 2379 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 43,424 psi | 71% | 2592 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 34,635 psi | 57% | 2461 fps | 99.4% |
| Vihtavuori N560 | <<locked>> | 86% | 41,510 psi | 68% | 2651 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 92% | 41,234 psi | 68% | 2635 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 98% | 43,787 psi | 72% | 2733 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,989 psi | 71% | 2549 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,078 psi | 74% | 2651 fps | 99.2% |
| Winchester StaBALL HD | 62.6 gr | 80% | 27,427 psi | 45% | 2402 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 82% | 35,143 psi | 58% | 2428 fps | 95.3% |
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 76 powders for .300 Blaser Mag. loaded with the .310 | 200gr | Rhino Solid Shank. Winchester StaBALL HD delivers the highest muzzle velocity at 2,917 fps; across all powders the maximum-charge window runs from 1,716 fps to 2,917 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 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 200.0 gr projectile in 0.31" 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. Alliant Reloder-26, Winchester StaBALL HD, IMR 7828 SSC rank at the top here: for .300 Blaser Mag. with the .310 | 200gr | Rhino Solid Shank 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.