Load Specifications
Load data in caliber .300 Blaser Mag. with .310 | 215gr | Rhino Solid Shank bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 and Accurate MAGPRO.
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>> | 94% | 53,969 psi | 89% | 2667 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,054 psi | 85% | 2644 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 52,286 psi | 86% | 2756 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 90% | 52,692 psi | 87% | 2700 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 94% | 53,853 psi | 88% | 2759 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,225 psi | 79% | 2664 fps | 98.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,859 psi | 70% | 2635 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 52,968 psi | 87% | 2697 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,838 psi | 88% | 2707 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 52,199 psi | 86% | 2690 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 53,838 psi | 88% | 2756 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,056 psi | 90% | 2723 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,114 psi | 89% | 2782 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 51,285 psi | 84% | 2759 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,344 psi | 86% | 2667 fps | 96.5% |
| Bofors RP15 | <<locked>> | 96% | 52,808 psi | 87% | 2740 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,125 psi | 82% | 2733 fps | 99.2% |
| Bofors RP5 | <<locked>> | 94% | 53,838 psi | 88% | 2756 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 54,549 psi | 90% | 2644 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,040 psi | 87% | 2746 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 53,606 psi | 88% | 2694 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 52,794 psi | 87% | 2654 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 92% | 53,795 psi | 88% | 2700 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 52,881 psi | 87% | 2684 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,171 psi | 87% | 2621 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,026 psi | 87% | 2854 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 53,737 psi | 88% | 2733 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,043 psi | 61% | 1654 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 52,591 psi | 86% | 2635 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 52,562 psi | 86% | 2615 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 52,344 psi | 86% | 2638 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 51,837 psi | 85% | 2635 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 94% | 51,706 psi | 85% | 2736 fps | 99% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 38,537 psi | 63% | 2543 fps | 96.6% |
| Lovex S065 | <<locked>> | 84% | 53,214 psi | 87% | 2615 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,810 psi | 90% | 2661 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,911 psi | 90% | 2677 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,171 psi | 87% | 2684 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 38,580 psi | 63% | 2569 fps | 98.7% |
| Norma MRP | <<locked>> | 92% | 53,505 psi | 88% | 2776 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,143 psi | 89% | 2677 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 52,257 psi | 86% | 2756 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 52,692 psi | 87% | 2684 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,273 psi | 89% | 2749 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,913 psi | 62% | 1693 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 51,953 psi | 85% | 2671 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 53,548 psi | 88% | 2743 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,534 psi | 88% | 2854 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,269 psi | 79% | 2746 fps | 97.8% |
| Rottweil R 904 | <<locked>> | 90% | 53,998 psi | 89% | 2671 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 90% | 51,663 psi | 85% | 2680 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 84% | 54,549 psi | 90% | 2644 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,214 psi | 87% | 2615 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,810 psi | 90% | 2661 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,315 psi | 86% | 2572 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,752 psi | 90% | 2726 fps | 99.8% |
| Somchem S361 | <<locked>> | 88% | 51,750 psi | 85% | 2612 fps | 98.3% |
| Somchem S365 | <<locked>> | 88% | 54,331 psi | 89% | 2680 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 52,330 psi | 86% | 2657 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 53,214 psi | 87% | 2559 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 52,431 psi | 86% | 2621 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 51,619 psi | 85% | 2635 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 54,810 psi | 90% | 2674 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 53,824 psi | 88% | 2700 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,432 psi | 88% | 2772 fps | 98.9% |
| Vihtavuori N565 | <<locked>> | 98% | 53,142 psi | 87% | 2753 fps | 99% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,574 psi | 81% | 2749 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,013 psi | 90% | 2628 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,853 psi | 88% | 2700 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 51,982 psi | 85% | 2802 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 51,880 psi | 85% | 2648 fps | 99.5% |
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% | 33,881 psi | 56% | 2316 fps | 98.3% |
| Accurate 4350 | <<locked>> | 80% | 45,455 psi | 75% | 2546 fps | 100% |
| Accurate MAGPRO | 66.6 gr | 84% | 39,595 psi | 65% | 2526 fps | 95.2% |
| ADI AR 2209 | <<locked>> | 80% | 37,782 psi | 62% | 2431 fps | 97% |
| ADI AR 2213 | <<locked>> | 84% | 38,508 psi | 63% | 2477 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 92% | 37,101 psi | 61% | 2444 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 88% | 29,298 psi | 48% | 2300 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,468 psi | 71% | 2549 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,140 psi | 82% | 2654 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,927 psi | 62% | 2431 fps | 97.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 33,678 psi | 55% | 2375 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,518 psi | 53% | 2343 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,297 psi | 46% | 2260 fps | 97% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,259 psi | 58% | 2474 fps | 99.6% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,385 psi | 81% | 2618 fps | 95.8% |
| Bofors RP15 | <<locked>> | 82% | 33,576 psi | 55% | 2372 fps | 95.6% |
| Bofors RP30 | <<locked>> | 90% | 35,781 psi | 59% | 2461 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 33,678 psi | 55% | 2375 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 48,225 psi | 79% | 2546 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 88% | 35,491 psi | 58% | 2408 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 46,949 psi | 77% | 2589 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 49,545 psi | 81% | 2602 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 38,450 psi | 63% | 2428 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,379 psi | 66% | 2467 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,017 psi | 67% | 2438 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 31,473 psi | 52% | 2388 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 46,441 psi | 76% | 2618 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,804 psi | 46% | 1476 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,540 psi | 71% | 2484 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,574 psi | 81% | 2569 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 43,250 psi | 71% | 2493 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 37,797 psi | 62% | 2375 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 84% | 37,028 psi | 61% | 2454 fps | 95.4% |
| IMR 8133 Enduron | <<locked>> | 98% | 36,071 psi | 59% | 2487 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 47,137 psi | 77% | 2523 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 45,353 psi | 74% | 2513 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 29,196 psi | 48% | 2205 fps | 96.7% |
| Norma 204 | <<locked>> | 80% | 43,468 psi | 71% | 2523 fps | 98.3% |
| Norma 217 | <<locked>> | 92% | 29,733 psi | 49% | 2346 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 35,230 psi | 58% | 2441 fps | 97.8% |
| Norma URP | <<locked>> | 80% | 44,512 psi | 73% | 2530 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 36,550 psi | 60% | 2461 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 43,279 psi | 71% | 2533 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 30,414 psi | 50% | 2293 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,442 psi | 47% | 1512 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,194 psi | 74% | 2566 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,468 psi | 71% | 2585 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,385 psi | 50% | 2362 fps | 96% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 38,812 psi | 64% | 2559 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 80% | 39,218 psi | 64% | 2411 fps | 96.3% |
| Rottweil R 905 | <<locked>> | 80% | 37,188 psi | 61% | 2415 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 80% | 48,225 psi | 79% | 2546 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,137 psi | 77% | 2523 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 45,353 psi | 74% | 2513 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,035 psi | 76% | 2474 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,854 psi | 61% | 2408 fps | 96.9% |
| Somchem S361 | <<locked>> | 80% | 39,900 psi | 66% | 2405 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 41,423 psi | 68% | 2490 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,753 psi | 62% | 2398 fps | 97.9% |
| Vihtavuori N150 | <<locked>> | 80% | 49,893 psi | 82% | 2516 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,021 psi | 76% | 2526 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,735 psi | 54% | 2283 fps | 96% |
| Vihtavuori N550 | <<locked>> | 80% | 45,339 psi | 74% | 2530 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,463 psi | 60% | 2411 fps | 99.9% |
| Vihtavuori N560 | 63.8 gr | 82% | 37,898 psi | 62% | 2484 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 88% | 37,884 psi | 62% | 2477 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 96% | 43,163 psi | 71% | 2631 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,860 psi | 74% | 2487 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,123 psi | 77% | 2595 fps | 99.8% |
| Winchester StaBALL HD | 61.6 gr | 80% | 28,790 psi | 47% | 2365 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,345 psi | 56% | 2329 fps | 95.9% |
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 71 powders for .300 Blaser Mag. loaded with the .310 | 215gr | Rhino Solid Shank. Hodgdon Retumbo delivers the highest muzzle velocity at 2,854 fps; across all powders the maximum-charge window runs from 1,654 fps to 2,854 fps. ADI AR 2217 gives the best case fill at 100 %, and 71 of the 71 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 215.0 gr projectile in 0.31" calls for a 1:12.5 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. Winchester StaBALL HD, Vihtavuori N560, Accurate MAGPRO rank at the top here: for .300 Blaser Mag. with the .310 | 215gr | 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.