Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 200gr | Peregrine VRG-3 bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP 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>> | 96% | 52,997 psi | 87% | 2756 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,897 psi | 90% | 2792 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 54,418 psi | 89% | 2904 fps | 99% |
| Accurate MAGPRO | <<locked>> | 94% | 51,532 psi | 85% | 2844 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 53,388 psi | 88% | 2707 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 52,301 psi | 86% | 2795 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 96% | 53,563 psi | 88% | 2851 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,570 psi | 73% | 2687 fps | 97.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,291 psi | 65% | 2644 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,331 psi | 89% | 2726 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 52,301 psi | 86% | 2795 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,229 psi | 87% | 2808 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 51,909 psi | 85% | 2785 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 53,156 psi | 87% | 2848 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,998 psi | 89% | 2818 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,777 psi | 82% | 2822 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,128 psi | 89% | 2907 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 52,069 psi | 85% | 2831 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,585 psi | 75% | 2756 fps | 97.9% |
| Bofors RP5 | <<locked>> | 96% | 53,156 psi | 87% | 2848 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 54,563 psi | 90% | 2743 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,037 psi | 81% | 2772 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 86% | 53,185 psi | 87% | 2792 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 52,707 psi | 87% | 2753 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 94% | 53,563 psi | 88% | 2792 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 94% | 52,373 psi | 86% | 2772 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 52,750 psi | 87% | 2723 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,704 psi | 80% | 2881 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 86% | 53,432 psi | 88% | 2831 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,695 psi | 60% | 1713 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 52,460 psi | 86% | 2730 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,736 psi | 87% | 2717 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 51,735 psi | 85% | 2733 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,984 psi | 90% | 2779 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 98% | 54,824 psi | 90% | 2884 fps | 98.9% |
| Lovex S065 | <<locked>> | 86% | 52,837 psi | 87% | 2710 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,273 psi | 89% | 2756 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,430 psi | 83% | 2717 fps | 100% |
| Norma 204 | <<locked>> | 88% | 53,040 psi | 87% | 2782 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 34,563 psi | 57% | 2562 fps | 96.6% |
| Norma MRP | <<locked>> | 94% | 52,547 psi | 86% | 2864 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 53,476 psi | 88% | 2776 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 51,517 psi | 85% | 2844 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 52,359 psi | 86% | 2782 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,258 psi | 87% | 2835 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,449 psi | 61% | 1755 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,866 psi | 87% | 2799 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,810 psi | 90% | 2815 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 53,301 psi | 88% | 2848 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,892 psi | 80% | 2877 fps | 100% |
| Rottweil R 903 | <<locked>> | 82% | 51,953 psi | 85% | 2690 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,780 psi | 88% | 2766 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 94% | 54,563 psi | 90% | 2822 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 86% | 54,563 psi | 90% | 2743 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,837 psi | 87% | 2710 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,273 psi | 89% | 2756 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,621 psi | 88% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,591 psi | 86% | 2575 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,286 psi | 86% | 2667 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,114 psi | 89% | 2818 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 51,837 psi | 85% | 2687 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 51,735 psi | 85% | 2707 fps | 97.7% |
| Somchem S365 | <<locked>> | 90% | 53,490 psi | 88% | 2776 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,013 psi | 90% | 2795 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 53,127 psi | 87% | 2661 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 52,083 psi | 86% | 2720 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,650 psi | 90% | 2779 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 54,549 psi | 90% | 2776 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,678 psi | 86% | 2792 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 52,663 psi | 86% | 2861 fps | 98.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,938 psi | 85% | 2835 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,042 psi | 90% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,403 psi | 88% | 2795 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,346 psi | 89% | 2946 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 51,517 psi | 85% | 2740 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 3100 | <<locked>> | 80% | 30,385 psi | 50% | 2323 fps | 96.4% |
| Accurate 4350 | <<locked>> | 80% | 41,423 psi | 68% | 2575 fps | 99.9% |
| Accurate High Country | <<locked>> | 84% | 38,218 psi | 63% | 2598 fps | 95.3% |
| Accurate MAGPRO | 71.9 gr | 90% | 44,643 psi | 73% | 2723 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 50,285 psi | 83% | 2657 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 34,969 psi | 57% | 2454 fps | 95% |
| ADI AR 2213 | <<locked>> | 88% | 40,785 psi | 67% | 2615 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 96% | 38,914 psi | 64% | 2569 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 94% | 32,358 psi | 53% | 2467 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,155 psi | 84% | 2680 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,277 psi | 66% | 2589 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,195 psi | 76% | 2703 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 34,824 psi | 57% | 2451 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 84% | 35,157 psi | 58% | 2503 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,428 psi | 48% | 2359 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 27,485 psi | 45% | 2316 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,865 psi | 52% | 2484 fps | 98.4% |
| Bofors RP15 | <<locked>> | 86% | 35,012 psi | 57% | 2497 fps | 95.2% |
| Bofors RP30 | <<locked>> | 94% | 37,130 psi | 61% | 2582 fps | 95.4% |
| Bofors RP5 | <<locked>> | 84% | 35,157 psi | 58% | 2503 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 44,947 psi | 74% | 2585 fps | 98.8% |
| Hodgdon H1000 | <<locked>> | 92% | 37,202 psi | 61% | 2533 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 43,511 psi | 71% | 2628 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 46,369 psi | 76% | 2644 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 86% | 40,756 psi | 67% | 2562 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 88% | 42,815 psi | 70% | 2605 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,797 psi | 62% | 2477 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 34,867 psi | 57% | 2569 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 42,656 psi | 70% | 2648 fps | 98.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,514 psi | 45% | 1532 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,611 psi | 67% | 2520 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,470 psi | 76% | 2612 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 39,668 psi | 65% | 2526 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 84% | 40,001 psi | 66% | 2510 fps | 95% |
| IMR 7828 SSC | <<locked>> | 88% | 38,928 psi | 64% | 2585 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 43,830 psi | 72% | 2562 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 42,163 psi | 69% | 2549 fps | 98.9% |
| Lovex S071 | <<locked>> | 82% | 27,905 psi | 46% | 2257 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 40,306 psi | 66% | 2552 fps | 96.8% |
| Norma 217 | <<locked>> | 98% | 32,489 psi | 53% | 2507 fps | 95.6% |
| Norma MRP | 62.8 gr | 80% | 31,995 psi | 53% | 2451 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 41,176 psi | 68% | 2569 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 38,624 psi | 63% | 2592 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 39,943 psi | 66% | 2562 fps | 98.9% |
| Ramshot Magnum | <<locked>> | 88% | 34,098 psi | 56% | 2474 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,079 psi | 46% | 1568 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,110 psi | 81% | 2746 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,423 psi | 68% | 2598 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,016 psi | 66% | 2615 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 31,720 psi | 52% | 2480 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 48,617 psi | 80% | 2641 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 38,928 psi | 64% | 2497 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 80% | 34,040 psi | 56% | 2434 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 44,947 psi | 74% | 2585 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,830 psi | 72% | 2562 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 42,163 psi | 69% | 2549 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,038 psi | 82% | 2697 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,458 psi | 81% | 2533 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,975 psi | 71% | 2513 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 36,172 psi | 59% | 2487 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 48,588 psi | 80% | 2638 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 42,279 psi | 69% | 2539 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 37,797 psi | 62% | 2526 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,563 psi | 57% | 2421 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 80% | 46,615 psi | 77% | 2569 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,496 psi | 70% | 2562 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 34,069 psi | 56% | 2402 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 41,800 psi | 69% | 2566 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 32,967 psi | 54% | 2431 fps | 99.1% |
| Vihtavuori N560 | 67.5 gr | 86% | 39,972 psi | 66% | 2621 fps | 95% |
| Vihtavuori N565 | <<locked>> | 92% | 39,291 psi | 65% | 2602 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,539 psi | 68% | 2530 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,671 psi | 72% | 2628 fps | 99% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,947 psi | 43% | 2359 fps | 99.1% |
| Winchester Supreme 780 | <<locked>> | 84% | 36,230 psi | 59% | 2457 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 82 powders for .300 Blaser Mag. loaded with the .308 | 200gr | Peregrine VRG-3. Winchester StaBALL HD delivers the highest muzzle velocity at 2,946 fps; across all powders the maximum-charge window runs from 1,713 fps to 2,946 fps. ADI AR 2217 gives the best case fill at 100 %, and 82 of the 82 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:12.0 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. Vihtavuori N560, Norma MRP, Accurate MAGPRO rank at the top here: for .300 Blaser Mag. with the .308 | 200gr | Peregrine VRG-3 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 7977 Enduron, IMR 8133 Enduron, Vihtavuori N170 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.