Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 206gr | Peregrine Backup (VRG-2) bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Accurate High Country 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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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 54,476 psi | 89% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 52,605 psi | 86% | 2720 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 52,359 psi | 86% | 2831 fps | 99% |
| Accurate MAGPRO | <<locked>> | 94% | 53,055 psi | 87% | 2831 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 82% | 54,447 psi | 89% | 2680 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 53,621 psi | 88% | 2776 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 96% | 54,940 psi | 90% | 2835 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,745 psi | 75% | 2677 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,393 psi | 66% | 2638 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 53,882 psi | 88% | 2776 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,664 psi | 88% | 2772 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,650 psi | 90% | 2785 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 53,185 psi | 87% | 2769 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,636 psi | 90% | 2831 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 51,953 psi | 85% | 2749 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,213 psi | 84% | 2805 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 51,866 psi | 85% | 2831 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 53,577 psi | 88% | 2746 fps | 96.3% |
| Bofors RP15 | <<locked>> | 98% | 53,519 psi | 88% | 2812 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,065 psi | 77% | 2746 fps | 98.5% |
| Bofors RP5 | <<locked>> | 96% | 54,636 psi | 90% | 2831 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 52,228 psi | 86% | 2671 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,357 psi | 83% | 2762 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 86% | 54,476 psi | 89% | 2772 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 53,867 psi | 88% | 2733 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 94% | 54,911 psi | 90% | 2776 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 53,708 psi | 88% | 2756 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,070 psi | 89% | 2700 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,125 psi | 82% | 2867 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 86% | 54,882 psi | 90% | 2812 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,782 psi | 60% | 1690 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,621 psi | 88% | 2710 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,780 psi | 88% | 2697 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 53,011 psi | 87% | 2710 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 52,779 psi | 87% | 2710 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 96% | 52,591 psi | 86% | 2812 fps | 98.9% |
| Lovex S065 | <<locked>> | 86% | 53,954 psi | 89% | 2690 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 52,286 psi | 86% | 2687 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,837 psi | 85% | 2700 fps | 100% |
| Norma 204 | <<locked>> | 88% | 54,317 psi | 89% | 2762 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 35,694 psi | 59% | 2559 fps | 97.4% |
| Norma MRP | <<locked>> | 94% | 54,114 psi | 89% | 2848 fps | 100% |
| Norma URP | <<locked>> | 88% | 54,766 psi | 90% | 2753 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 53,026 psi | 87% | 2828 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 88% | 53,664 psi | 88% | 2762 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,926 psi | 90% | 2822 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,565 psi | 62% | 1729 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,346 psi | 89% | 2776 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 52,446 psi | 86% | 2743 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,752 psi | 90% | 2828 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,386 psi | 83% | 2864 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 45,281 psi | 74% | 2749 fps | 96.7% |
| Rottweil R 903 | <<locked>> | 82% | 53,156 psi | 87% | 2671 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,013 psi | 90% | 2746 fps | 99% |
| Rottweil R 905 | <<locked>> | 92% | 52,359 psi | 86% | 2753 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 84% | 52,228 psi | 86% | 2671 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 53,954 psi | 89% | 2690 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 52,286 psi | 86% | 2687 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,839 psi | 90% | 2730 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,606 psi | 88% | 2549 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,374 psi | 88% | 2648 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 51,938 psi | 85% | 2746 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 52,968 psi | 87% | 2664 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 52,924 psi | 87% | 2690 fps | 98.2% |
| Somchem S365 | <<locked>> | 90% | 54,969 psi | 90% | 2756 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 52,866 psi | 87% | 2726 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 54,273 psi | 89% | 2638 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 53,316 psi | 88% | 2700 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 52,446 psi | 86% | 2710 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 86% | 52,431 psi | 86% | 2703 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,157 psi | 89% | 2772 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,157 psi | 89% | 2844 fps | 98.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,490 psi | 88% | 2822 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 46,731 psi | 77% | 2759 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 52,663 psi | 86% | 2661 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,694 psi | 90% | 2776 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 52,431 psi | 86% | 2877 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 52,866 psi | 87% | 2723 fps | 99.4% |
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% | 31,285 psi | 51% | 2313 fps | 97.1% |
| Accurate 4350 | <<locked>> | 80% | 42,554 psi | 70% | 2559 fps | 100% |
| Accurate High Country | 64.3 gr | 82% | 36,608 psi | 60% | 2530 fps | 95.1% |
| Accurate MAGPRO | 70.3 gr | 88% | 42,772 psi | 70% | 2651 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 51,285 psi | 84% | 2635 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 35,824 psi | 59% | 2444 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 86% | 39,117 psi | 64% | 2546 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 94% | 37,347 psi | 61% | 2503 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 92% | 31,067 psi | 51% | 2405 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,056 psi | 59% | 2444 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,292 psi | 68% | 2572 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,471 psi | 78% | 2684 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 35,708 psi | 59% | 2438 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 82% | 33,765 psi | 55% | 2434 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,269 psi | 50% | 2349 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 26,426 psi | 43% | 2257 fps | 95.3% |
| Alliant Reloder-26 | 64.7 gr | 80% | 32,880 psi | 54% | 2474 fps | 98.9% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 50,299 psi | 83% | 2690 fps | 95.5% |
| Bofors RP15 | <<locked>> | 84% | 33,649 psi | 55% | 2431 fps | 95.1% |
| Bofors RP30 | <<locked>> | 92% | 35,766 psi | 59% | 2516 fps | 95.2% |
| Bofors RP5 | <<locked>> | 82% | 33,765 psi | 55% | 2434 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 45,905 psi | 75% | 2566 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 90% | 35,708 psi | 59% | 2467 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 44,599 psi | 73% | 2612 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 80% | 47,398 psi | 78% | 2628 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 86% | 41,785 psi | 69% | 2549 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 86% | 41,060 psi | 67% | 2536 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,812 psi | 64% | 2461 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 33,576 psi | 55% | 2503 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 43,845 psi | 72% | 2635 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,601 psi | 45% | 1512 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,524 psi | 68% | 2503 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,413 psi | 78% | 2592 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 40,683 psi | 67% | 2510 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 40,915 psi | 67% | 2497 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 86% | 37,347 psi | 61% | 2516 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 44,773 psi | 74% | 2543 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 43,120 psi | 71% | 2533 fps | 99.2% |
| Lovex S071 | <<locked>> | 80% | 26,934 psi | 44% | 2198 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 41,307 psi | 68% | 2539 fps | 97.4% |
| Norma 217 | <<locked>> | 96% | 31,343 psi | 51% | 2448 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 32,924 psi | 54% | 2441 fps | 96.5% |
| Norma URP | <<locked>> | 80% | 42,206 psi | 69% | 2552 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 36,898 psi | 61% | 2523 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 40,988 psi | 67% | 2549 fps | 99.3% |
| Ramshot Magnum | <<locked>> | 86% | 32,590 psi | 54% | 2405 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,181 psi | 46% | 1549 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,488 psi | 83% | 2723 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,569 psi | 70% | 2582 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,075 psi | 67% | 2602 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 30,414 psi | 50% | 2415 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 41,829 psi | 69% | 2680 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 49,763 psi | 82% | 2621 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 37,275 psi | 61% | 2428 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 80% | 34,969 psi | 57% | 2425 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 45,905 psi | 75% | 2566 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,773 psi | 74% | 2543 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 43,120 psi | 71% | 2533 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,198 psi | 84% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,430 psi | 83% | 2507 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,888 psi | 72% | 2493 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 34,650 psi | 57% | 2418 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 49,647 psi | 82% | 2615 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 40,466 psi | 66% | 2470 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 38,914 psi | 64% | 2510 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,476 psi | 58% | 2408 fps | 96.9% |
| Vihtavuori N150 | <<locked>> | 80% | 47,645 psi | 78% | 2546 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,540 psi | 71% | 2546 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 32,706 psi | 54% | 2339 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 42,830 psi | 70% | 2549 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 33,968 psi | 56% | 2418 fps | 99.5% |
| Vihtavuori N560 | <<locked>> | 86% | 41,089 psi | 67% | 2612 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 90% | 37,869 psi | 62% | 2536 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 98% | 43,468 psi | 71% | 2697 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,583 psi | 70% | 2513 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,773 psi | 74% | 2615 fps | 99.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,701 psi | 44% | 2356 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 82% | 34,722 psi | 57% | 2392 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 78 powders for .300 Blaser Mag. loaded with the .308 | 206gr | Peregrine Backup (VRG-2). Winchester StaBALL HD delivers the highest muzzle velocity at 2,877 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,877 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 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 206.0 gr projectile in 0.308" 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. Accurate MAGPRO, Accurate High Country, Alliant Reloder-26 rank at the top here: for .300 Blaser Mag. with the .308 | 206gr | Peregrine Backup (VRG-2) 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.