Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 180gr | CutEdge LZR bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Accurate High Country and Winchester StaBALL HD.
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>> | 94% | 53,882 psi | 84% | 2907 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,463 psi | 87% | 2946 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 55,709 psi | 87% | 3064 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 94% | 56,666 psi | 89% | 3064 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 82% | 56,724 psi | 89% | 2910 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,608 psi | 89% | 3009 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 94% | 54,157 psi | 85% | 3009 fps | 98.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,443 psi | 76% | 2897 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,178 psi | 68% | 2854 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 56,666 psi | 89% | 3002 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,594 psi | 89% | 3005 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,925 psi | 85% | 2963 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,970 psi | 88% | 2995 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,056 psi | 85% | 3002 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,361 psi | 87% | 2979 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,650 psi | 86% | 3035 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,695 psi | 87% | 3064 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,072 psi | 88% | 2966 fps | 96% |
| Bofors RP15 | <<locked>> | 98% | 56,826 psi | 89% | 3045 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,575 psi | 79% | 2969 fps | 98.3% |
| Bofors RP5 | <<locked>> | 94% | 54,056 psi | 85% | 3002 fps | 99.3% |
| Bofors RP7 | <<locked>> | 84% | 54,273 psi | 85% | 2894 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,534 psi | 84% | 2992 fps | 99% |
| Hodgdon H414 | <<locked>> | 86% | 57,319 psi | 90% | 3002 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 56,362 psi | 88% | 2963 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 54,186 psi | 85% | 2946 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 56,739 psi | 89% | 2989 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,811 psi | 89% | 2927 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,621 psi | 84% | 3104 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 84% | 53,998 psi | 85% | 2982 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,869 psi | 58% | 1854 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,115 psi | 88% | 2936 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,912 psi | 88% | 2920 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 55,825 psi | 87% | 2940 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,347 psi | 87% | 2933 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 96% | 55,912 psi | 88% | 3048 fps | 98.7% |
| Lovex S065 | <<locked>> | 86% | 56,362 psi | 88% | 2917 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,491 psi | 85% | 2910 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,969 psi | 86% | 2927 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,159 psi | 90% | 2992 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 38,566 psi | 60% | 2766 fps | 97.2% |
| Norma MRP | <<locked>> | 92% | 53,925 psi | 85% | 3022 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 57,725 psi | 90% | 2986 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,623 psi | 89% | 3068 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 56,550 psi | 89% | 2989 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,911 psi | 86% | 2999 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,710 psi | 59% | 1900 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,493 psi | 90% | 3009 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,434 psi | 87% | 2969 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,070 psi | 85% | 3002 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,215 psi | 85% | 3104 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,023 psi | 77% | 2976 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 82% | 55,564 psi | 87% | 2894 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,012 psi | 85% | 2917 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 92% | 55,405 psi | 87% | 2982 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 84% | 54,273 psi | 85% | 2894 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,362 psi | 88% | 2917 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,491 psi | 85% | 2910 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,276 psi | 90% | 2956 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,680 psi | 87% | 2769 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,666 psi | 87% | 2867 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,969 psi | 86% | 2976 fps | 99.3% |
| Somchem S355 | <<locked>> | 82% | 55,230 psi | 87% | 2890 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,637 psi | 87% | 2910 fps | 98% |
| Somchem S365 | <<locked>> | 88% | 54,375 psi | 85% | 2933 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,898 psi | 88% | 2953 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 56,550 psi | 89% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,912 psi | 88% | 2927 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,492 psi | 87% | 2933 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 86% | 54,955 psi | 86% | 2927 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 57,363 psi | 90% | 3002 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 57,711 psi | 90% | 3081 fps | 98.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 57,406 psi | 90% | 3058 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,314 psi | 79% | 2982 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,477 psi | 87% | 2884 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 57,537 psi | 90% | 3005 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,101 psi | 89% | 3114 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,869 psi | 88% | 2949 fps | 99.3% |
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% | 33,156 psi | 52% | 2500 fps | 96.5% |
| Accurate 4350 | <<locked>> | 80% | 44,889 psi | 70% | 2769 fps | 99.9% |
| Accurate High Country | 76.6 gr | 84% | 41,872 psi | 66% | 2799 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 88% | 45,600 psi | 71% | 2864 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 53,272 psi | 83% | 2858 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,550 psi | 59% | 2638 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 86% | 41,162 psi | 65% | 2749 fps | 95% |
| ADI AR 2217 | <<locked>> | 96% | 42,322 psi | 66% | 2769 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 92% | 32,953 psi | 52% | 2592 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,942 psi | 59% | 2641 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,308 psi | 68% | 2782 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,038 psi | 78% | 2904 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,579 psi | 59% | 2635 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,363 psi | 60% | 2690 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,053 psi | 50% | 2536 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,805 psi | 47% | 2493 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,099 psi | 55% | 2671 fps | 98.5% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,721 psi | 83% | 2910 fps | 95.2% |
| Bofors RP15 | <<locked>> | 86% | 38,000 psi | 60% | 2680 fps | 95.4% |
| Bofors RP30 | <<locked>> | 94% | 40,872 psi | 64% | 2776 fps | 95.8% |
| Bofors RP5 | <<locked>> | 84% | 38,363 psi | 60% | 2690 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 47,819 psi | 75% | 2779 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 92% | 40,524 psi | 64% | 2736 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 46,760 psi | 73% | 2825 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 80% | 49,501 psi | 78% | 2844 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 44,092 psi | 69% | 2759 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,221 psi | 68% | 2743 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,669 psi | 64% | 2661 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 35,563 psi | 56% | 2700 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 46,398 psi | 73% | 2848 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,688 psi | 43% | 1660 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,337 psi | 68% | 2710 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,385 psi | 77% | 2808 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 42,888 psi | 67% | 2717 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 84% | 42,801 psi | 67% | 2700 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 88% | 42,264 psi | 66% | 2785 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 46,746 psi | 73% | 2756 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 44,918 psi | 70% | 2740 fps | 98.9% |
| Lovex S071 | <<locked>> | 82% | 30,458 psi | 48% | 2428 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 43,366 psi | 68% | 2746 fps | 97% |
| Norma 217 | <<locked>> | 96% | 33,562 psi | 53% | 2638 fps | 95% |
| Norma MRP | <<locked>> | 80% | 34,780 psi | 55% | 2631 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 44,150 psi | 69% | 2759 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 42,134 psi | 66% | 2799 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 43,149 psi | 68% | 2756 fps | 99% |
| Ramshot Magnum | <<locked>> | 86% | 34,737 psi | 54% | 2602 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,195 psi | 44% | 1699 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,287 psi | 84% | 2949 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,049 psi | 71% | 2795 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,366 psi | 68% | 2812 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 34,824 psi | 55% | 2677 fps | 96.1% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 45,353 psi | 71% | 2904 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 51,895 psi | 81% | 2841 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,582 psi | 65% | 2680 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 80% | 36,840 psi | 58% | 2618 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 47,819 psi | 75% | 2779 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,746 psi | 73% | 2756 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 44,918 psi | 70% | 2740 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,606 psi | 84% | 2900 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,199 psi | 82% | 2720 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,774 psi | 72% | 2703 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,521 psi | 57% | 2612 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 51,866 psi | 81% | 2838 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,411 psi | 71% | 2733 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 41,118 psi | 64% | 2717 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,376 psi | 59% | 2602 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 80% | 49,559 psi | 78% | 2759 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,672 psi | 72% | 2759 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 37,028 psi | 58% | 2589 fps | 95.9% |
| Vihtavuori N550 | <<locked>> | 80% | 44,991 psi | 71% | 2759 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 35,853 psi | 56% | 2608 fps | 99.2% |
| Vihtavuori N560 | 78.4 gr | 86% | 43,511 psi | 68% | 2818 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 92% | 43,424 psi | 68% | 2802 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 98% | 46,659 psi | 73% | 2913 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,802 psi | 70% | 2717 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,934 psi | 74% | 2828 fps | 99.1% |
| Winchester StaBALL HD | 72.2 gr | 80% | 28,326 psi | 44% | 2536 fps | 99.2% |
| Winchester Supreme 780 | <<locked>> | 82% | 36,593 psi | 57% | 2582 fps | 95% |
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 Norma Mag. loaded with the .308 | 180gr | CutEdge LZR. Winchester StaBALL HD delivers the highest muzzle velocity at 3,114 fps; across all powders the maximum-charge window runs from 1,854 fps to 3,114 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 (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:10.0 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, Accurate High Country, Winchester StaBALL HD rank at the top here: for .300 Norma Mag. with the .308 | 180gr | CutEdge LZR 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.