Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 215gr | Peregrine VLR-4 bullet and 73 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 IMR 7828 SSC.
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% | 57,145 psi | 90% | 2723 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 54,244 psi | 85% | 2687 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 56,086 psi | 88% | 2828 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 88% | 55,550 psi | 87% | 2759 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 92% | 57,174 psi | 90% | 2825 fps | 99.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 55,187 psi | 86% | 2795 fps | 99.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 49,545 psi | 78% | 2759 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 55,709 psi | 87% | 2756 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 55,709 psi | 87% | 2756 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 84% | 55,825 psi | 87% | 2746 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 55,071 psi | 86% | 2749 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 92% | 57,305 psi | 90% | 2818 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 55,259 psi | 87% | 2730 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 54,723 psi | 86% | 2795 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 55,550 psi | 87% | 2815 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 51,721 psi | 81% | 2812 fps | 97.1% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 54,462 psi | 85% | 2733 fps | 97.7% |
| Bofors RP15 | <<locked>> | 94% | 56,449 psi | 88% | 2805 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 54,418 psi | 85% | 2805 fps | 99.8% |
| Bofors RP5 | <<locked>> | 92% | 57,305 psi | 90% | 2818 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 56,260 psi | 88% | 2694 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 56,782 psi | 89% | 2818 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 56,115 psi | 88% | 2746 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 56,739 psi | 89% | 2762 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 55,622 psi | 87% | 2746 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 55,912 psi | 88% | 2671 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 57,696 psi | 90% | 2933 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 56,782 psi | 89% | 2785 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,318 psi | 58% | 1699 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 54,766 psi | 86% | 2684 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,595 psi | 90% | 2710 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 54,853 psi | 86% | 2684 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 57,522 psi | 90% | 2743 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 92% | 55,274 psi | 87% | 2805 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,860 psi | 70% | 2667 fps | 98.6% |
| Lovex S065 | <<locked>> | 82% | 54,839 psi | 86% | 2657 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,753 psi | 89% | 2710 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 54,708 psi | 86% | 2690 fps | 100% |
| Norma 204 | <<locked>> | 84% | 55,695 psi | 87% | 2740 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 45,397 psi | 71% | 2694 fps | 99.8% |
| Norma MRP | <<locked>> | 90% | 57,377 psi | 90% | 2835 fps | 100% |
| Norma URP | <<locked>> | 84% | 56,550 psi | 89% | 2726 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 56,275 psi | 88% | 2828 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 55,434 psi | 87% | 2736 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 54,389 psi | 85% | 2759 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,276 psi | 60% | 1742 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 54,549 psi | 85% | 2713 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 56,985 psi | 89% | 2795 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 54,143 psi | 85% | 2864 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 2890 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 88% | 56,318 psi | 88% | 2726 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 88% | 54,578 psi | 86% | 2740 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 56,260 psi | 88% | 2694 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,839 psi | 86% | 2657 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,753 psi | 89% | 2710 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 57,406 psi | 90% | 2667 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 54,186 psi | 85% | 2733 fps | 99.9% |
| Somchem S361 | <<locked>> | 86% | 53,925 psi | 85% | 2667 fps | 99.1% |
| Somchem S365 | <<locked>> | 86% | 57,609 psi | 90% | 2726 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,897 psi | 86% | 2710 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 54,447 psi | 85% | 2664 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 54,679 psi | 86% | 2697 fps | 100% |
| Vihtavuori N170 | <<locked>> | 98% | 56,927 psi | 89% | 2762 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 84% | 57,261 psi | 90% | 2720 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 57,203 psi | 90% | 2753 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 57,014 psi | 89% | 2838 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 96% | 57,058 psi | 89% | 2822 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 98% | 54,259 psi | 85% | 2828 fps | 98.8% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 55,158 psi | 86% | 2884 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 57,682 psi | 90% | 2674 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 56,115 psi | 88% | 2746 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 53,795 psi | 84% | 2808 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,679 psi | 86% | 2707 fps | 99.9% |
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% | 37,884 psi | 59% | 2408 fps | 99.3% |
| Accurate 4350 | <<locked>> | 80% | 50,676 psi | 79% | 2635 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 39,160 psi | 61% | 2516 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 42,395 psi | 66% | 2536 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 80% | 37,768 psi | 59% | 2470 fps | 96.2% |
| ADI AR 2217 | <<locked>> | 86% | 34,243 psi | 54% | 2392 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 84% | 28,848 psi | 45% | 2297 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,670 psi | 67% | 2533 fps | 98.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,670 psi | 67% | 2533 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,979 psi | 77% | 2644 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,250 psi | 66% | 2530 fps | 98.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 38,145 psi | 60% | 2477 fps | 97.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,956 psi | 58% | 2434 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,792 psi | 50% | 2362 fps | 98.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 41,089 psi | 64% | 2582 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 44,483 psi | 70% | 2680 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 45,136 psi | 71% | 2566 fps | 95.4% |
| Bofors RP15 | <<locked>> | 80% | 35,462 psi | 56% | 2418 fps | 96.6% |
| Bofors RP30 | <<locked>> | 84% | 33,576 psi | 53% | 2405 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 38,145 psi | 60% | 2477 fps | 97.6% |
| Bofors RP7 | <<locked>> | 80% | 52,765 psi | 83% | 2641 fps | 100% |
| Hodgdon H1000 | <<locked>> | 84% | 34,896 psi | 55% | 2411 fps | 96.1% |
| Hodgdon H414 | <<locked>> | 80% | 52,388 psi | 82% | 2690 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 40,234 psi | 63% | 2477 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,610 psi | 62% | 2464 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,876 psi | 72% | 2526 fps | 100% |
| Hodgdon Retumbo | 68.6 gr | 80% | 30,980 psi | 49% | 2382 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 52,721 psi | 83% | 2726 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,021 psi | 44% | 1519 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 48,196 psi | 76% | 2582 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 54,099 psi | 85% | 2661 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 48,109 psi | 75% | 2585 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,814 psi | 66% | 2477 fps | 97% |
| IMR 7828 SSC | 68.5 gr | 80% | 36,361 psi | 57% | 2451 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 92% | 34,185 psi | 54% | 2438 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 51,663 psi | 81% | 2612 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,951 psi | 78% | 2608 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 32,561 psi | 51% | 2290 fps | 98.2% |
| Norma 204 | <<locked>> | 80% | 48,617 psi | 76% | 2628 fps | 99.4% |
| Norma 217 | <<locked>> | 88% | 29,820 psi | 47% | 2346 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 40,190 psi | 63% | 2543 fps | 99.2% |
| Norma URP | <<locked>> | 80% | 49,617 psi | 78% | 2625 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 36,013 psi | 56% | 2457 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 48,530 psi | 76% | 2631 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 31,995 psi | 50% | 2339 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,631 psi | 45% | 1555 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,908 psi | 80% | 2661 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 49,371 psi | 77% | 2687 fps | 100% |
| ReloadSwiss RS 76 | 73.4 gr | 80% | 29,878 psi | 47% | 2352 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 39,146 psi | 61% | 2566 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 43,526 psi | 68% | 2513 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 80% | 41,684 psi | 65% | 2516 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 80% | 52,765 psi | 83% | 2641 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,663 psi | 81% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,951 psi | 78% | 2608 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,488 psi | 79% | 2566 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,350 psi | 65% | 2513 fps | 98.5% |
| Somchem S361 | <<locked>> | 80% | 44,164 psi | 69% | 2503 fps | 97.4% |
| Somchem S365 | <<locked>> | 80% | 47,021 psi | 74% | 2579 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,148 psi | 66% | 2497 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 80% | 50,995 psi | 80% | 2615 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,564 psi | 57% | 2379 fps | 97.7% |
| Vihtavuori N170 | <<locked>> | 96% | 53,301 psi | 84% | 2707 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 50,227 psi | 79% | 2621 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,118 psi | 64% | 2503 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 40,176 psi | 63% | 2539 fps | 96.5% |
| Vihtavuori N565 | <<locked>> | 84% | 37,811 psi | 59% | 2477 fps | 96% |
| Vihtavuori N568 | <<locked>> | 90% | 40,553 psi | 64% | 2582 fps | 95.5% |
| Vihtavuori N570 | <<locked>> | 96% | 47,790 psi | 75% | 2756 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 50,169 psi | 79% | 2572 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 52,591 psi | 82% | 2694 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,794 psi | 53% | 2470 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,624 psi | 61% | 2431 fps | 97.7% |
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 73 powders for .300 Norma Mag. loaded with the .308 | 215gr | Peregrine VLR-4. Hodgdon Retumbo delivers the highest muzzle velocity at 2,933 fps; across all powders the maximum-charge window runs from 1,699 fps to 2,933 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 215.0 gr projectile in 0.308" calls for a 1:8.5 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, IMR 7828 SSC rank at the top here: for .300 Norma Mag. with the .308 | 215gr | Peregrine 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.