Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 193gr | Peregrine Plainsmaster (VLR-4) bullet and 87 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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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% | 54,070 psi | 89% | 2730 fps | 99.4% |
| Accurate 3100 | <<locked>> | 98% | 52,185 psi | 86% | 2779 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 53,403 psi | 88% | 2707 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,244 psi | 89% | 2822 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 53,679 psi | 88% | 2927 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 98% | 54,650 psi | 90% | 2930 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 84% | 53,679 psi | 88% | 2743 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 52,083 psi | 86% | 2822 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 98% | 53,171 psi | 87% | 2874 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 36,143 psi | 59% | 2592 fps | 96.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 52,054 psi | 85% | 2818 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,447 psi | 89% | 2766 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,505 psi | 89% | 2785 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 51,866 psi | 85% | 2828 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 52,953 psi | 87% | 2848 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,955 psi | 90% | 2864 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 52,301 psi | 86% | 2867 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,910 psi | 87% | 2844 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,818 psi | 75% | 2789 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,924 psi | 87% | 2936 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,242 psi | 84% | 2851 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 51,634 psi | 85% | 2730 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 41,597 psi | 68% | 2710 fps | 96.1% |
| Bofors RP5 | <<locked>> | 98% | 52,301 psi | 86% | 2867 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 54,578 psi | 90% | 2776 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,469 psi | 75% | 2730 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 82% | 51,909 psi | 85% | 2749 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 52,939 psi | 87% | 2822 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 52,779 psi | 87% | 2782 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 53,330 psi | 88% | 2818 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 52,098 psi | 86% | 2799 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 52,156 psi | 86% | 2753 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,672 psi | 73% | 2828 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 88% | 53,084 psi | 87% | 2861 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,390 psi | 60% | 1722 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,084 psi | 87% | 2723 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 52,431 psi | 86% | 2759 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 52,953 psi | 87% | 2753 fps | 99.6% |
| IMR 4831 | <<locked>> | 92% | 54,781 psi | 90% | 2812 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,882 psi | 90% | 2805 fps | 97.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,331 psi | 89% | 2907 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 53,156 psi | 87% | 2717 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 52,968 psi | 87% | 2746 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 54,201 psi | 89% | 2789 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,325 psi | 76% | 2687 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 53,809 psi | 88% | 2772 fps | 100% |
| Norma 204 | <<locked>> | 90% | 52,823 psi | 87% | 2808 fps | 98.7% |
| Norma MRP | <<locked>> | 96% | 51,793 psi | 85% | 2890 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 53,185 psi | 87% | 2808 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,723 psi | 90% | 2799 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,839 psi | 90% | 2927 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 90% | 51,924 psi | 85% | 2812 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,863 psi | 80% | 2799 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,130 psi | 61% | 1765 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 51,880 psi | 85% | 2733 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 52,460 psi | 86% | 2838 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,273 psi | 89% | 2844 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 52,910 psi | 87% | 2877 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,802 psi | 74% | 2828 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 82% | 54,998 psi | 90% | 2726 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 51,750 psi | 85% | 2726 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,708 psi | 88% | 2792 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 96% | 53,983 psi | 89% | 2848 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 88% | 54,578 psi | 90% | 2776 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 52,968 psi | 87% | 2746 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 53,156 psi | 87% | 2717 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,201 psi | 89% | 2789 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,534 psi | 88% | 2789 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,924 psi | 87% | 2615 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 52,402 psi | 86% | 2700 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,519 psi | 88% | 2844 fps | 99.1% |
| Somchem S355 | <<locked>> | 84% | 51,924 psi | 85% | 2723 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,056 psi | 90% | 2782 fps | 97.6% |
| Somchem S365 | <<locked>> | 92% | 52,678 psi | 86% | 2808 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,592 psi | 90% | 2822 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 86% | 53,171 psi | 87% | 2700 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 51,793 psi | 85% | 2753 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,114 psi | 89% | 2802 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 82% | 53,882 psi | 88% | 2697 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,215 psi | 89% | 2808 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 51,721 psi | 85% | 2822 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 52,083 psi | 86% | 2884 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 47,456 psi | 78% | 2792 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,940 psi | 90% | 2769 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,185 psi | 87% | 2828 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,356 psi | 79% | 2913 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,737 psi | 90% | 2818 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 2700 | <<locked>> | 80% | 50,604 psi | 83% | 2677 fps | 99% |
| Accurate 3100 | <<locked>> | 82% | 29,878 psi | 49% | 2343 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 49,879 psi | 82% | 2657 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,319 psi | 63% | 2549 fps | 99.4% |
| Accurate High Country | <<locked>> | 88% | 40,263 psi | 66% | 2677 fps | 95.2% |
| Accurate MAGPRO | <<locked>> | 94% | 47,239 psi | 78% | 2802 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 47,369 psi | 78% | 2648 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 37,347 psi | 61% | 2536 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 92% | 43,337 psi | 71% | 2694 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 98% | 33,953 psi | 56% | 2533 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 37,449 psi | 61% | 2539 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,037 psi | 79% | 2667 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,227 psi | 84% | 2736 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,434 psi | 61% | 2566 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,583 psi | 70% | 2680 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 37,072 psi | 61% | 2533 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 88% | 37,231 psi | 61% | 2582 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,180 psi | 45% | 2326 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 29,037 psi | 48% | 2392 fps | 95.5% |
| Alliant Reloder-26 | 62.1 gr | 80% | 29,022 psi | 48% | 2434 fps | 96.5% |
| Bofors RP15 | <<locked>> | 90% | 36,738 psi | 60% | 2569 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 48,167 psi | 79% | 2677 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 38,812 psi | 64% | 2648 fps | 95.2% |
| Bofors RP5 | <<locked>> | 88% | 37,231 psi | 61% | 2582 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 42,264 psi | 69% | 2562 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 96% | 39,494 psi | 65% | 2608 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 48,704 psi | 80% | 2697 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 40,451 psi | 66% | 2602 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 43,352 psi | 71% | 2618 fps | 97.4% |
| Hodgdon H4831 | <<locked>> | 90% | 43,468 psi | 71% | 2644 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 92% | 45,527 psi | 75% | 2684 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,911 psi | 57% | 2454 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 36,767 psi | 60% | 2641 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 39,421 psi | 65% | 2615 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,267 psi | 45% | 1539 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,850 psi | 82% | 2677 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,043 psi | 62% | 2497 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,859 psi | 72% | 2595 fps | 98.4% |
| IMR 4831 | <<locked>> | 80% | 36,811 psi | 60% | 2503 fps | 99.1% |
| IMR 4955 Enduron | <<locked>> | 90% | 45,411 psi | 75% | 2644 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 92% | 41,437 psi | 68% | 2667 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 49,951 psi | 82% | 2667 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,133 psi | 68% | 2543 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 39,479 psi | 65% | 2526 fps | 97.8% |
| Lovex S071 | <<locked>> | 86% | 29,298 psi | 48% | 2326 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 50,546 psi | 83% | 2723 fps | 100% |
| Norma 204 | <<locked>> | 80% | 37,492 psi | 62% | 2523 fps | 95.1% |
| Norma MRP | 63.3 gr | 84% | 33,823 psi | 56% | 2530 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 38,247 psi | 63% | 2546 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 80% | 51,169 psi | 84% | 2746 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 40,988 psi | 67% | 2671 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 37,072 psi | 61% | 2536 fps | 97.8% |
| Ramshot Magnum | <<locked>> | 92% | 36,332 psi | 60% | 2552 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,804 psi | 46% | 1578 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,573 psi | 80% | 2680 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,281 psi | 74% | 2726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,290 psi | 63% | 2572 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,072 psi | 61% | 2582 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 33,533 psi | 55% | 2556 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 51,692 psi | 85% | 2677 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,469 psi | 75% | 2628 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 41,466 psi | 68% | 2575 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 84% | 36,013 psi | 59% | 2510 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,264 psi | 69% | 2562 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,133 psi | 68% | 2543 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 49,951 psi | 82% | 2667 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,479 psi | 65% | 2526 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,804 psi | 77% | 2684 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,775 psi | 77% | 2530 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,277 psi | 66% | 2490 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 38,305 psi | 63% | 2566 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 45,600 psi | 75% | 2625 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 45,034 psi | 74% | 2618 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 34,693 psi | 57% | 2503 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 34,258 psi | 56% | 2444 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 43,700 psi | 72% | 2556 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,624 psi | 65% | 2543 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 36,158 psi | 59% | 2480 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 50,676 psi | 83% | 2654 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,088 psi | 64% | 2549 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 30,168 psi | 50% | 2398 fps | 97.9% |
| Vihtavuori N560 | 67.9 gr | 90% | 42,395 psi | 70% | 2703 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 96% | 41,176 psi | 68% | 2674 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,725 psi | 64% | 2513 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 40,625 psi | 67% | 2602 fps | 98% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,931 psi | 39% | 2303 fps | 97.1% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,464 psi | 63% | 2536 fps | 95.7% |
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 87 powders for .300 Blaser Mag. loaded with the .308 | 193gr | Peregrine Plainsmaster (VLR-4). Alliant Reloder-26 delivers the highest muzzle velocity at 2,936 fps; across all powders the maximum-charge window runs from 1,722 fps to 2,936 fps. ADI AR 2225 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 193.0 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for .300 Blaser Mag. with the .308 | 193gr | Peregrine Plainsmaster (VLR-4) 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.