Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 200gr | CutEdge MTH bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Alliant Reloder-26 and Accurate High Country.
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 2700 | <<locked>> | 82% | 55,071 psi | 90% | 2697 fps | 99.6% |
| Accurate 3100 | <<locked>> | 98% | 53,708 psi | 88% | 2753 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 54,447 psi | 89% | 2671 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 52,025 psi | 85% | 2740 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 55,071 psi | 90% | 2900 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 96% | 52,286 psi | 86% | 2844 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 84% | 54,592 psi | 90% | 2710 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,098 psi | 87% | 2792 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 98% | 54,288 psi | 89% | 2844 fps | 98.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,130 psi | 61% | 2579 fps | 97.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 53,359 psi | 88% | 2789 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,156 psi | 86% | 2680 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,098 psi | 87% | 2795 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,346 psi | 89% | 2815 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,634 psi | 86% | 2782 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 53,563 psi | 88% | 2841 fps | 99.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,259 psi | 89% | 2812 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,920 psi | 77% | 2762 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,534 psi | 90% | 2907 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,504 psi | 86% | 2822 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 52,692 psi | 87% | 2697 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 42,714 psi | 70% | 2690 fps | 96.9% |
| Bofors RP5 | <<locked>> | 98% | 53,563 psi | 88% | 2841 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 52,272 psi | 86% | 2694 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,499 psi | 76% | 2710 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 82% | 53,200 psi | 87% | 2720 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,186 psi | 89% | 2795 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 53,867 psi | 88% | 2753 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 96% | 54,433 psi | 89% | 2789 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,447 psi | 88% | 2772 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,432 psi | 88% | 2720 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,963 psi | 75% | 2812 fps | 99% |
| Hodgdon Superformance | <<locked>> | 88% | 54,534 psi | 90% | 2835 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,593 psi | 60% | 1693 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,998 psi | 89% | 2690 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,548 psi | 88% | 2733 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,911 psi | 89% | 2717 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 52,634 psi | 86% | 2733 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,518 psi | 86% | 2723 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 98% | 51,996 psi | 85% | 2822 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 54,375 psi | 89% | 2684 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,998 psi | 89% | 2713 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 52,011 psi | 85% | 2707 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,616 psi | 78% | 2664 fps | 99.8% |
| Norma 203B | <<locked>> | 82% | 55,071 psi | 90% | 2740 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,085 psi | 89% | 2782 fps | 99.1% |
| Norma MRP | <<locked>> | 96% | 53,185 psi | 87% | 2864 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 54,433 psi | 89% | 2776 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,199 psi | 86% | 2838 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 53,229 psi | 87% | 2782 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,154 psi | 82% | 2776 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,362 psi | 61% | 1736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 52,910 psi | 87% | 2703 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,809 psi | 88% | 2802 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 51,953 psi | 85% | 2762 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,070 psi | 89% | 2844 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,006 psi | 76% | 2808 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 84% | 53,084 psi | 87% | 2697 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,679 psi | 90% | 2762 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 94% | 51,895 psi | 85% | 2769 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 52,272 psi | 86% | 2694 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,998 psi | 89% | 2713 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 54,375 psi | 89% | 2684 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 52,011 psi | 85% | 2707 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,679 psi | 90% | 2756 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,795 psi | 88% | 2579 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,432 psi | 88% | 2667 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,969 psi | 90% | 2818 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 52,968 psi | 87% | 2690 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,808 psi | 87% | 2703 fps | 97.6% |
| Somchem S365 | <<locked>> | 92% | 54,099 psi | 89% | 2776 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,301 psi | 86% | 2743 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 86% | 54,273 psi | 89% | 2667 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 52,997 psi | 87% | 2720 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 51,880 psi | 85% | 2723 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 82% | 55,114 psi | 90% | 2664 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 52,156 psi | 86% | 2730 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,200 psi | 87% | 2792 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 53,359 psi | 88% | 2858 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 48,950 psi | 80% | 2772 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,373 psi | 86% | 2684 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,418 psi | 89% | 2795 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,140 psi | 82% | 2887 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,315 psi | 86% | 2736 fps | 99% |
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 2700 | <<locked>> | 80% | 51,561 psi | 85% | 2644 fps | 99.3% |
| Accurate 3100 | <<locked>> | 80% | 28,660 psi | 47% | 2270 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 51,097 psi | 84% | 2625 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,276 psi | 64% | 2523 fps | 99.6% |
| Accurate High Country | 64.4 gr | 86% | 38,580 psi | 63% | 2598 fps | 95.1% |
| Accurate MAGPRO | 70.2 gr | 92% | 45,165 psi | 74% | 2720 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 48,414 psi | 79% | 2615 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 35,781 psi | 59% | 2461 fps | 95% |
| ADI AR 2213 | <<locked>> | 90% | 41,437 psi | 68% | 2615 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 96% | 32,648 psi | 54% | 2461 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 35,897 psi | 59% | 2461 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,921 psi | 80% | 2635 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,261 psi | 63% | 2536 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,845 psi | 72% | 2654 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 35,563 psi | 58% | 2457 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 86% | 35,650 psi | 59% | 2503 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,963 psi | 46% | 2310 fps | 98.6% |
| Alliant Reloder-25 | <<locked>> | 84% | 27,905 psi | 46% | 2320 fps | 95.3% |
| Alliant Reloder-26 | 61.7 gr | 80% | 29,834 psi | 49% | 2418 fps | 97.3% |
| Bofors RP15 | <<locked>> | 88% | 35,346 psi | 58% | 2493 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 49,400 psi | 81% | 2648 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 37,275 psi | 61% | 2575 fps | 95.1% |
| Bofors RP5 | <<locked>> | 86% | 35,650 psi | 59% | 2503 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 43,250 psi | 71% | 2536 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 37,956 psi | 62% | 2533 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 49,676 psi | 82% | 2664 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 41,350 psi | 68% | 2572 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 80% | 44,425 psi | 73% | 2595 fps | 98% |
| Hodgdon H4831 | <<locked>> | 90% | 44,324 psi | 73% | 2618 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 90% | 43,468 psi | 71% | 2602 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,897 psi | 59% | 2431 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 35,273 psi | 58% | 2566 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 40,408 psi | 66% | 2592 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,398 psi | 45% | 1512 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,952 psi | 84% | 2644 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,812 psi | 64% | 2470 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,802 psi | 74% | 2566 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 37,840 psi | 62% | 2480 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 88% | 43,410 psi | 71% | 2566 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 90% | 39,624 psi | 65% | 2589 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 51,068 psi | 84% | 2635 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,119 psi | 69% | 2516 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 40,292 psi | 66% | 2503 fps | 98.3% |
| Lovex S071 | <<locked>> | 84% | 28,108 psi | 46% | 2257 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 51,488 psi | 85% | 2687 fps | 100% |
| Norma 204 | <<locked>> | 80% | 38,363 psi | 63% | 2500 fps | 95.9% |
| Norma MRP | <<locked>> | 82% | 32,358 psi | 53% | 2451 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 39,117 psi | 64% | 2520 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 39,218 psi | 64% | 2592 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 37,971 psi | 62% | 2513 fps | 98.4% |
| Ramshot Magnum | <<locked>> | 90% | 34,621 psi | 57% | 2470 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,775 psi | 46% | 1549 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,719 psi | 82% | 2654 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,615 psi | 77% | 2697 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,262 psi | 64% | 2546 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,985 psi | 62% | 2559 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 32,082 psi | 53% | 2477 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 46,383 psi | 76% | 2595 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 39,697 psi | 65% | 2497 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 84% | 37,086 psi | 61% | 2493 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 43,250 psi | 71% | 2536 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,119 psi | 69% | 2516 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 51,068 psi | 84% | 2635 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,292 psi | 66% | 2503 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,776 psi | 78% | 2654 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,543 psi | 78% | 2493 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,234 psi | 68% | 2467 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 36,753 psi | 60% | 2490 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 46,673 psi | 77% | 2595 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 43,149 psi | 71% | 2539 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 35,636 psi | 59% | 2477 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 32,851 psi | 54% | 2369 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 44,556 psi | 73% | 2523 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,509 psi | 67% | 2516 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 34,534 psi | 57% | 2405 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 51,590 psi | 85% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,972 psi | 66% | 2520 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 31,009 psi | 51% | 2379 fps | 98.5% |
| Vihtavuori N560 | <<locked>> | 90% | 43,337 psi | 71% | 2680 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 94% | 39,595 psi | 65% | 2598 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,595 psi | 65% | 2487 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,568 psi | 68% | 2579 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,526 psi | 40% | 2297 fps | 98.1% |
| Winchester Supreme 780 | <<locked>> | 86% | 36,898 psi | 61% | 2461 fps | 95.6% |
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 | 200gr | CutEdge MTH. Alliant Reloder-26 delivers the highest muzzle velocity at 2,907 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,907 fps. ADI AR 2225 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 60–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, 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. Accurate MAGPRO, Alliant Reloder-26, Accurate High Country rank at the top here: for .300 Blaser Mag. with the .308 | 200gr | CutEdge MTH 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.