Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 196gr | Peregrine Glider (Glider GRM) bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country and Norma MRP.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 53,214 psi | 87% | 2687 fps | 99.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,824 psi | 90% | 2789 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 52,446 psi | 86% | 2664 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 53,127 psi | 87% | 2776 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 52,475 psi | 86% | 2877 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 98% | 53,287 psi | 87% | 2877 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 84% | 52,910 psi | 87% | 2703 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,520 psi | 90% | 2831 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 98% | 52,054 psi | 85% | 2825 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 35,389 psi | 58% | 2546 fps | 96.5% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 54,665 psi | 90% | 2828 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 53,650 psi | 88% | 2723 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 53,693 psi | 88% | 2743 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,462 psi | 89% | 2835 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 51,808 psi | 85% | 2802 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 53,925 psi | 89% | 2822 fps | 99% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,650 psi | 90% | 2877 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,576 psi | 85% | 2802 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,788 psi | 74% | 2743 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 51,445 psi | 84% | 2887 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,038 psi | 82% | 2802 fps | 98.6% |
| Bofors RP3 | <<locked>> | 84% | 54,259 psi | 89% | 2740 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,650 psi | 90% | 2877 fps | 99.3% |
| Bofors RP7 | <<locked>> | 88% | 53,751 psi | 88% | 2730 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 44,585 psi | 73% | 2684 fps | 96.9% |
| Hodgdon H380 | <<locked>> | 84% | 54,607 psi | 90% | 2759 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 52,156 psi | 86% | 2782 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 51,938 psi | 85% | 2740 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 96% | 52,127 psi | 86% | 2769 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 54,723 psi | 90% | 2808 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,621 psi | 90% | 2756 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,714 psi | 72% | 2779 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 88% | 52,025 psi | 85% | 2815 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,332 psi | 60% | 1696 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 52,214 psi | 86% | 2684 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,781 psi | 90% | 2720 fps | 99.7% |
| IMR 4350 | <<locked>> | 92% | 54,868 psi | 90% | 2769 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 52,141 psi | 86% | 2707 fps | 99.5% |
| IMR 4831 | <<locked>> | 92% | 53,780 psi | 88% | 2769 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,085 psi | 90% | 2769 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 53,940 psi | 89% | 2759 fps | 97.6% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,214 psi | 87% | 2858 fps | 98.1% |
| Lovex S062 | <<locked>> | 82% | 52,504 psi | 86% | 2677 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 52,112 psi | 86% | 2703 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 53,417 psi | 88% | 2746 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,426 psi | 75% | 2644 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 52,997 psi | 87% | 2730 fps | 100% |
| Norma 204 | <<locked>> | 90% | 51,924 psi | 85% | 2766 fps | 98.6% |
| Norma MRP | <<locked>> | 98% | 54,433 psi | 89% | 2904 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 52,344 psi | 86% | 2766 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 53,824 psi | 88% | 2756 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,505 psi | 88% | 2871 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 92% | 54,679 psi | 90% | 2825 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,732 psi | 78% | 2753 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,086 psi | 61% | 1739 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,578 psi | 90% | 2746 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,085 psi | 90% | 2844 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 53,316 psi | 88% | 2805 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 51,837 psi | 85% | 2831 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,671 psi | 72% | 2776 fps | 99% |
| Rottweil R 902 | <<locked>> | 82% | 54,360 psi | 89% | 2687 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,418 psi | 89% | 2736 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 52,591 psi | 86% | 2746 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 96% | 52,924 psi | 87% | 2802 fps | 99% |
| Rottweil R 907 | <<locked>> | 88% | 53,751 psi | 88% | 2730 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 52,112 psi | 86% | 2703 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 52,504 psi | 86% | 2677 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 53,417 psi | 88% | 2746 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 52,649 psi | 86% | 2746 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,054 psi | 85% | 2575 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 51,634 psi | 85% | 2657 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 52,460 psi | 86% | 2799 fps | 99% |
| Somchem S355 | <<locked>> | 86% | 54,288 psi | 89% | 2730 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,288 psi | 89% | 2743 fps | 97.5% |
| Somchem S365 | <<locked>> | 92% | 51,561 psi | 85% | 2766 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 53,563 psi | 88% | 2779 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 82% | 54,737 psi | 90% | 2641 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,984 psi | 90% | 2661 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 52,272 psi | 86% | 2661 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,172 psi | 89% | 2756 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,982 psi | 87% | 2756 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 82% | 53,156 psi | 87% | 2657 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 53,287 psi | 87% | 2762 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,012 psi | 89% | 2825 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 54,723 psi | 90% | 2897 fps | 98% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 46,398 psi | 76% | 2746 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 53,954 psi | 89% | 2726 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 52,156 psi | 86% | 2782 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,978 psi | 77% | 2871 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 53,621 psi | 88% | 2772 fps | 98.9% |
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% | 49,966 psi | 82% | 2635 fps | 98.9% |
| Accurate 3100 | <<locked>> | 82% | 29,254 psi | 48% | 2303 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 49,124 psi | 81% | 2618 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,507 psi | 62% | 2507 fps | 99.2% |
| Accurate High Country | 65.9 gr | 90% | 42,380 psi | 70% | 2697 fps | 95.9% |
| Accurate MAGPRO | <<locked>> | 94% | 46,122 psi | 76% | 2756 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 46,746 psi | 77% | 2608 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 39,102 psi | 64% | 2552 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 92% | 42,627 psi | 70% | 2651 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 98% | 33,185 psi | 54% | 2487 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 36,680 psi | 60% | 2497 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,166 psi | 77% | 2625 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,328 psi | 83% | 2694 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,854 psi | 61% | 2523 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,829 psi | 69% | 2641 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 38,769 psi | 64% | 2546 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 36,405 psi | 60% | 2536 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,687 psi | 44% | 2287 fps | 97.7% |
| Alliant Reloder-25 | <<locked>> | 86% | 28,456 psi | 47% | 2349 fps | 95.1% |
| Alliant Reloder-26 | 60.3 gr | 80% | 28,398 psi | 47% | 2392 fps | 96.2% |
| Bofors RP15 | <<locked>> | 92% | 38,566 psi | 63% | 2585 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 47,297 psi | 78% | 2635 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 36,405 psi | 60% | 2536 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 41,698 psi | 68% | 2523 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 98% | 41,466 psi | 68% | 2621 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 47,935 psi | 79% | 2654 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 39,711 psi | 65% | 2559 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 42,641 psi | 70% | 2575 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 92% | 45,600 psi | 75% | 2657 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 44,744 psi | 73% | 2641 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,258 psi | 56% | 2415 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 35,969 psi | 59% | 2592 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 38,551 psi | 63% | 2569 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,151 psi | 45% | 1516 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,153 psi | 81% | 2635 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,459 psi | 84% | 2671 fps | 99.5% |
| IMR 4350 | <<locked>> | 80% | 37,362 psi | 61% | 2454 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,294 psi | 71% | 2556 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 36,216 psi | 59% | 2464 fps | 99% |
| IMR 4895 | <<locked>> | 80% | 51,677 psi | 85% | 2720 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 44,614 psi | 73% | 2602 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 94% | 43,279 psi | 71% | 2677 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 49,226 psi | 81% | 2628 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,553 psi | 67% | 2503 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 38,754 psi | 64% | 2487 fps | 97.6% |
| Lovex S071 | <<locked>> | 88% | 30,589 psi | 50% | 2339 fps | 95.8% |
| Norma 203B | <<locked>> | 80% | 49,676 psi | 82% | 2680 fps | 100% |
| Norma 204 | <<locked>> | 82% | 39,421 psi | 65% | 2539 fps | 95.8% |
| Norma MRP | 61.5 gr | 84% | 33,156 psi | 54% | 2487 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 37,478 psi | 62% | 2503 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 80% | 50,270 psi | 83% | 2707 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 40,147 psi | 66% | 2625 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 36,419 psi | 60% | 2497 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 35,418 psi | 58% | 2503 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,702 psi | 45% | 1552 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,906 psi | 79% | 2641 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,527 psi | 73% | 2687 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,405 psi | 61% | 2530 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,376 psi | 60% | 2539 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 32,909 psi | 54% | 2513 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 50,981 psi | 84% | 2638 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,556 psi | 73% | 2585 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 40,669 psi | 67% | 2533 fps | 95% |
| Rottweil R 905 | <<locked>> | 86% | 37,884 psi | 62% | 2526 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 41,698 psi | 68% | 2523 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,553 psi | 67% | 2503 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 49,226 psi | 81% | 2628 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,754 psi | 64% | 2487 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,035 psi | 76% | 2644 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,050 psi | 76% | 2490 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,755 psi | 65% | 2451 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 37,521 psi | 62% | 2523 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 44,933 psi | 74% | 2585 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 44,338 psi | 73% | 2579 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 33,895 psi | 56% | 2461 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 33,634 psi | 55% | 2405 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 51,474 psi | 85% | 2598 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,590 psi | 85% | 2615 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,888 psi | 70% | 2516 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,885 psi | 64% | 2503 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 35,302 psi | 58% | 2438 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 49,937 psi | 82% | 2615 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,392 psi | 63% | 2507 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 29,428 psi | 48% | 2359 fps | 97.7% |
| Vihtavuori N560 | <<locked>> | 92% | 44,440 psi | 73% | 2717 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 98% | 43,149 psi | 71% | 2687 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,029 psi | 62% | 2474 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 39,900 psi | 66% | 2562 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,467 psi | 39% | 2264 fps | 96.8% |
| Winchester Supreme 780 | <<locked>> | 88% | 37,840 psi | 62% | 2497 fps | 95.5% |
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 90 powders for .300 Blaser Mag. loaded with the .308 | 196gr | Peregrine Glider (Glider GRM). Norma MRP delivers the highest muzzle velocity at 2,904 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,904 fps. Accurate 3100 gives the best case fill at 100 %, and 90 of the 90 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 196.0 gr projectile in 0.308" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2225, Alliant Reloder-22 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, Accurate High Country, Norma MRP rank at the top here: for .300 Blaser Mag. with the .308 | 196gr | Peregrine Glider (Glider GRM) 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.