Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 200gr | SUS-TAC HPT bullet and 71 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% | 56,840 psi | 89% | 2808 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 53,969 psi | 85% | 2779 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 55,477 psi | 87% | 2910 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 88% | 54,897 psi | 86% | 2841 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 56,333 psi | 88% | 2907 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,389 psi | 85% | 2871 fps | 99.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,791 psi | 76% | 2835 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 55,071 psi | 86% | 2838 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 84% | 55,129 psi | 86% | 2835 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 54,447 psi | 85% | 2831 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 56,579 psi | 89% | 2900 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 54,505 psi | 85% | 2815 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 57,696 psi | 90% | 2930 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,723 psi | 86% | 2897 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 51,169 psi | 80% | 2887 fps | 96.2% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 57,493 psi | 90% | 2867 fps | 97.6% |
| Bofors RP15 | <<locked>> | 94% | 55,753 psi | 87% | 2887 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 57,551 psi | 90% | 2943 fps | 99.8% |
| Bofors RP5 | <<locked>> | 92% | 56,579 psi | 89% | 2900 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 55,767 psi | 87% | 2779 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 56,144 psi | 88% | 2900 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 82% | 55,463 psi | 87% | 2831 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 56,086 psi | 88% | 2841 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 90% | 55,027 psi | 86% | 2825 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 55,332 psi | 87% | 2759 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 56,710 psi | 89% | 3012 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 55,898 psi | 88% | 2867 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,347 psi | 59% | 1768 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 57,609 psi | 90% | 2818 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,145 psi | 90% | 2799 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 54,418 psi | 85% | 2772 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,811 psi | 89% | 2822 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 92% | 54,462 psi | 85% | 2887 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,498 psi | 70% | 2746 fps | 97.9% |
| Lovex S065 | <<locked>> | 82% | 54,592 psi | 86% | 2746 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,347 psi | 88% | 2799 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 54,505 psi | 85% | 2776 fps | 100% |
| Norma 204 | <<locked>> | 84% | 55,143 psi | 86% | 2822 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 44,788 psi | 70% | 2769 fps | 99.5% |
| Norma MRP | <<locked>> | 90% | 56,579 psi | 89% | 2917 fps | 100% |
| Norma URP | <<locked>> | 84% | 56,014 psi | 88% | 2812 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 55,419 psi | 87% | 2907 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 54,911 psi | 86% | 2822 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 53,737 psi | 84% | 2841 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,305 psi | 60% | 1811 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 54,157 psi | 85% | 2802 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 56,333 psi | 88% | 2884 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 57,421 psi | 90% | 3009 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 56,782 psi | 89% | 2969 fps | 99% |
| Rottweil R 904 | <<locked>> | 88% | 55,796 psi | 87% | 2812 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 90% | 57,595 psi | 90% | 2874 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 55,767 psi | 87% | 2779 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,592 psi | 86% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,347 psi | 88% | 2799 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 57,000 psi | 89% | 2753 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 57,174 psi | 90% | 2871 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 57,203 psi | 90% | 2805 fps | 99.1% |
| Somchem S365 | <<locked>> | 86% | 56,884 psi | 89% | 2815 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,418 psi | 85% | 2792 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 57,682 psi | 90% | 2805 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 57,682 psi | 90% | 2828 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 56,855 psi | 89% | 2808 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 56,710 psi | 89% | 2844 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 56,231 psi | 88% | 2917 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 96% | 56,420 psi | 88% | 2904 fps | 99.3% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 57,334 psi | 90% | 2966 fps | 98.7% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 54,418 psi | 85% | 2959 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 57,116 psi | 90% | 2759 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 55,666 psi | 87% | 2835 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 57,043 psi | 89% | 2953 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,114 psi | 85% | 2789 fps | 99.7% |
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% | 38,058 psi | 60% | 2490 fps | 99% |
| Accurate 4350 | <<locked>> | 80% | 50,546 psi | 79% | 2726 fps | 100% |
| Accurate MAGPRO | 76.2 gr | 82% | 41,945 psi | 66% | 2657 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 41,974 psi | 66% | 2612 fps | 97.9% |
| ADI AR 2213 | <<locked>> | 80% | 37,434 psi | 59% | 2543 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 88% | 36,347 psi | 57% | 2516 fps | 95% |
| ADI AR 2225 | <<locked>> | 86% | 30,850 psi | 48% | 2421 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,424 psi | 66% | 2612 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,414 psi | 76% | 2730 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,032 psi | 66% | 2608 fps | 97.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,826 psi | 59% | 2552 fps | 96.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,695 psi | 57% | 2513 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,691 psi | 50% | 2431 fps | 98% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,611 psi | 64% | 2657 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 47,514 psi | 74% | 2822 fps | 95.1% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 47,805 psi | 75% | 2697 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 35,259 psi | 55% | 2490 fps | 95.8% |
| Bofors RP30 | <<locked>> | 86% | 35,752 psi | 56% | 2533 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 37,826 psi | 59% | 2552 fps | 96.9% |
| Bofors RP7 | <<locked>> | 80% | 52,402 psi | 82% | 2726 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 84% | 34,679 psi | 54% | 2477 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 51,895 psi | 81% | 2776 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 39,987 psi | 63% | 2549 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,247 psi | 62% | 2533 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,556 psi | 71% | 2612 fps | 100% |
| Hodgdon Retumbo | 72 gr | 82% | 33,069 psi | 52% | 2513 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 52,054 psi | 82% | 2808 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,992 psi | 44% | 1578 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,747 psi | 75% | 2661 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 53,780 psi | 84% | 2746 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 47,776 psi | 75% | 2667 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,539 psi | 65% | 2549 fps | 96.1% |
| IMR 7828 SSC | <<locked>> | 82% | 38,696 psi | 61% | 2582 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 94% | 36,303 psi | 57% | 2566 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 51,358 psi | 80% | 2697 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,647 psi | 78% | 2690 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 32,837 psi | 51% | 2369 fps | 97.6% |
| Norma 204 | <<locked>> | 80% | 48,196 psi | 76% | 2707 fps | 98.9% |
| Norma 217 | <<locked>> | 90% | 31,908 psi | 50% | 2474 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 39,856 psi | 62% | 2621 fps | 98.6% |
| Norma URP | <<locked>> | 80% | 49,182 psi | 77% | 2710 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 35,795 psi | 56% | 2530 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 48,138 psi | 75% | 2713 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 32,039 psi | 50% | 2415 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,747 psi | 45% | 1617 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,473 psi | 79% | 2746 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,631 psi | 76% | 2766 fps | 100% |
| ReloadSwiss RS 76 | 75.2 gr | 80% | 29,950 psi | 47% | 2421 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 41,858 psi | 66% | 2700 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 43,192 psi | 68% | 2589 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 80% | 41,539 psi | 65% | 2595 fps | 98% |
| Rottweil R 907 | <<locked>> | 80% | 52,402 psi | 82% | 2726 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,358 psi | 80% | 2697 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,647 psi | 78% | 2690 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,140 psi | 79% | 2648 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,205 psi | 65% | 2592 fps | 97.9% |
| Somchem S361 | <<locked>> | 80% | 43,845 psi | 69% | 2579 fps | 96.6% |
| Somchem S365 | <<locked>> | 80% | 46,572 psi | 73% | 2664 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,901 psi | 66% | 2575 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 80% | 50,662 psi | 79% | 2703 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,492 psi | 57% | 2454 fps | 97% |
| Vihtavuori N550 | <<locked>> | 80% | 49,937 psi | 78% | 2707 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,959 psi | 64% | 2585 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 39,856 psi | 62% | 2612 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 84% | 37,724 psi | 59% | 2549 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 92% | 43,207 psi | 68% | 2717 fps | 95.5% |
| Vihtavuori N570 | <<locked>> | 98% | 50,517 psi | 79% | 2890 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,763 psi | 78% | 2657 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 52,098 psi | 82% | 2779 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,373 psi | 52% | 2549 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,450 psi | 60% | 2503 fps | 97% |
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 71 powders for .300 Norma Mag. loaded with the .308 | 200gr | SUS-TAC HPT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,012 fps; across all powders the maximum-charge window runs from 1,768 fps to 3,012 fps. ADI AR 2217 gives the best case fill at 100 %, and 71 of the 71 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 200.0 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 | 200gr | SUS-TAC HPT 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.