Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 207gr | Peregrine VLR5 (VLR-5) bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 56,420 psi | 88% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 57,595 psi | 90% | 2789 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 54,578 psi | 86% | 2861 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 90% | 55,390 psi | 87% | 2867 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 88% | 54,795 psi | 86% | 2799 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 92% | 56,565 psi | 89% | 2867 fps | 99.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,433 psi | 85% | 2835 fps | 99.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,718 psi | 76% | 2795 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 54,955 psi | 86% | 2795 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 54,955 psi | 86% | 2795 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 84% | 55,230 psi | 87% | 2792 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 54,331 psi | 85% | 2789 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 56,724 psi | 89% | 2861 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 54,549 psi | 85% | 2772 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 54,012 psi | 85% | 2835 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,839 psi | 86% | 2858 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 50,995 psi | 80% | 2851 fps | 96.5% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 57,551 psi | 90% | 2831 fps | 97.9% |
| Bofors RP15 | <<locked>> | 94% | 55,854 psi | 88% | 2844 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 57,580 psi | 90% | 2904 fps | 99.9% |
| Bofors RP5 | <<locked>> | 92% | 56,724 psi | 89% | 2861 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 55,608 psi | 87% | 2736 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 56,217 psi | 88% | 2861 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 82% | 55,448 psi | 87% | 2789 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 56,014 psi | 88% | 2802 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,969 psi | 86% | 2785 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 55,288 psi | 87% | 2717 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 56,826 psi | 89% | 2972 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 56,057 psi | 88% | 2828 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,391 psi | 59% | 1742 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 57,653 psi | 90% | 2779 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,159 psi | 90% | 2756 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 54,230 psi | 85% | 2730 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,942 psi | 89% | 2785 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 92% | 54,708 psi | 86% | 2848 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,309 psi | 69% | 2703 fps | 98.2% |
| Lovex S065 | <<locked>> | 82% | 54,389 psi | 85% | 2703 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,173 psi | 88% | 2756 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 57,740 psi | 90% | 2782 fps | 100% |
| Norma 204 | <<locked>> | 84% | 55,172 psi | 86% | 2782 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 44,599 psi | 70% | 2726 fps | 99.6% |
| Norma MRP | <<locked>> | 90% | 56,724 psi | 89% | 2881 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,956 psi | 88% | 2772 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 55,521 psi | 87% | 2867 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 54,897 psi | 86% | 2779 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 53,751 psi | 84% | 2799 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,145 psi | 60% | 1778 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 53,824 psi | 84% | 2756 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 56,289 psi | 88% | 2838 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 57,638 psi | 90% | 2966 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 56,681 psi | 89% | 2930 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 88% | 55,840 psi | 88% | 2772 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 90% | 57,653 psi | 90% | 2835 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 55,608 psi | 87% | 2736 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,389 psi | 85% | 2703 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,173 psi | 88% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,855 psi | 89% | 2710 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 57,232 psi | 90% | 2831 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 57,087 psi | 89% | 2766 fps | 99.2% |
| Somchem S365 | <<locked>> | 86% | 56,811 psi | 89% | 2772 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,317 psi | 85% | 2753 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 57,653 psi | 90% | 2762 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 53,998 psi | 85% | 2736 fps | 99.9% |
| Vihtavuori N170 | <<locked>> | 98% | 56,289 psi | 88% | 2802 fps | 95.9% |
| Vihtavuori N550 | <<locked>> | 84% | 56,797 psi | 89% | 2769 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 56,565 psi | 89% | 2799 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 56,420 psi | 88% | 2881 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 96% | 56,478 psi | 89% | 2864 fps | 99.5% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 2930 fps | 99% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 54,302 psi | 85% | 2920 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 57,043 psi | 89% | 2717 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 55,666 psi | 87% | 2792 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 57,188 psi | 90% | 2907 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,215 psi | 85% | 2749 fps | 99.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 37,449 psi | 59% | 2444 fps | 99.1% |
| Accurate 4350 | <<locked>> | 80% | 50,140 psi | 79% | 2680 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 41,046 psi | 64% | 2612 fps | 97% |
| Accurate MAGPRO | 75.7 gr | 82% | 41,568 psi | 65% | 2615 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 41,829 psi | 66% | 2572 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 80% | 37,347 psi | 59% | 2507 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 88% | 36,100 psi | 57% | 2480 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 84% | 28,558 psi | 45% | 2323 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,235 psi | 66% | 2572 fps | 98.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,235 psi | 66% | 2572 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,327 psi | 76% | 2687 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,843 psi | 66% | 2566 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,710 psi | 59% | 2513 fps | 97.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,376 psi | 57% | 2467 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,299 psi | 49% | 2392 fps | 98.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,364 psi | 63% | 2615 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 47,427 psi | 74% | 2782 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 47,688 psi | 75% | 2661 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 34,940 psi | 55% | 2448 fps | 96% |
| Bofors RP30 | <<locked>> | 86% | 35,433 psi | 56% | 2490 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 37,710 psi | 59% | 2513 fps | 97.2% |
| Bofors RP7 | <<locked>> | 80% | 52,170 psi | 82% | 2684 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 84% | 34,418 psi | 54% | 2438 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 51,837 psi | 81% | 2736 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 39,798 psi | 62% | 2513 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,189 psi | 61% | 2500 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,310 psi | 71% | 2569 fps | 100% |
| Hodgdon Retumbo | 71.6 gr | 82% | 32,721 psi | 51% | 2474 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 52,098 psi | 82% | 2769 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,934 psi | 44% | 1552 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,630 psi | 75% | 2621 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 53,737 psi | 84% | 2707 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 47,500 psi | 74% | 2625 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,307 psi | 65% | 2510 fps | 96.5% |
| IMR 7828 SSC | <<locked>> | 80% | 35,940 psi | 56% | 2484 fps | 95.1% |
| IMR 8133 Enduron | <<locked>> | 94% | 36,027 psi | 56% | 2526 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 51,111 psi | 80% | 2654 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,371 psi | 77% | 2648 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 32,126 psi | 50% | 2323 fps | 97.7% |
| Norma 204 | <<locked>> | 80% | 48,095 psi | 75% | 2667 fps | 99.2% |
| Norma 217 | <<locked>> | 90% | 31,473 psi | 49% | 2431 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 39,610 psi | 62% | 2582 fps | 98.8% |
| Norma URP | <<locked>> | 80% | 48,965 psi | 77% | 2667 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 35,520 psi | 56% | 2490 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 47,993 psi | 75% | 2674 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 31,531 psi | 49% | 2369 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,674 psi | 45% | 1591 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,270 psi | 79% | 2703 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,660 psi | 76% | 2726 fps | 100% |
| ReloadSwiss RS 76 | 74.8 gr | 80% | 29,515 psi | 46% | 2379 fps | 95.4% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 41,597 psi | 65% | 2661 fps | 96.1% |
| Rottweil R 904 | <<locked>> | 80% | 42,975 psi | 67% | 2552 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 80% | 41,263 psi | 65% | 2556 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 80% | 52,170 psi | 82% | 2684 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,111 psi | 80% | 2654 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,371 psi | 77% | 2648 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,850 psi | 78% | 2608 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,930 psi | 64% | 2549 fps | 98.1% |
| Somchem S361 | <<locked>> | 80% | 43,656 psi | 68% | 2539 fps | 96.9% |
| Somchem S365 | <<locked>> | 80% | 46,340 psi | 73% | 2621 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,698 psi | 65% | 2536 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 80% | 50,517 psi | 79% | 2661 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,187 psi | 57% | 2415 fps | 97.3% |
| Vihtavuori N170 | <<locked>> | 96% | 52,576 psi | 82% | 2743 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 49,734 psi | 78% | 2664 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,524 psi | 64% | 2539 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 39,639 psi | 62% | 2572 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 84% | 37,347 psi | 59% | 2510 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 92% | 43,004 psi | 67% | 2677 fps | 95.9% |
| Vihtavuori N570 | <<locked>> | 96% | 46,978 psi | 74% | 2789 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,734 psi | 78% | 2618 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 52,011 psi | 82% | 2736 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,127 psi | 52% | 2503 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,189 psi | 60% | 2464 fps | 97.2% |
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 74 powders for .300 Norma Mag. loaded with the .308 | 207gr | Peregrine VLR5 (VLR-5). Hodgdon Retumbo delivers the highest muzzle velocity at 2,972 fps; across all powders the maximum-charge window runs from 1,742 fps to 2,972 fps. ADI AR 2217 gives the best case fill at 100 %, and 74 of the 74 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 207.0 gr projectile in 0.308" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-33 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. Hodgdon Retumbo, ReloadSwiss RS 76, Accurate MAGPRO rank at the top here: for .300 Norma Mag. with the .308 | 207gr | Peregrine VLR5 (VLR-5) 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.