Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 175gr | Prvi Partizan FMJ BT bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Norma MRP and Vihtavuori N560.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 52,910 psi | 87% | 2959 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,317 psi | 89% | 2999 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 54,201 psi | 89% | 3114 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 94% | 55,042 psi | 90% | 3110 fps | 97.7% |
| ADI AR 2209 | <<locked>> | 90% | 51,619 psi | 85% | 2995 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 94% | 52,895 psi | 87% | 3051 fps | 98.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,355 psi | 78% | 2940 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,163 psi | 69% | 2900 fps | 99% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 51,837 psi | 85% | 2992 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 51,677 psi | 85% | 2999 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 52,489 psi | 86% | 3012 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,650 psi | 90% | 3041 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 94% | 52,794 psi | 87% | 3051 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 53,737 psi | 88% | 3025 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,997 psi | 87% | 3084 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 54,056 psi | 89% | 3117 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 51,822 psi | 85% | 3035 fps | 99% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,081 psi | 81% | 3015 fps | 98.1% |
| Bofors RP5 | <<locked>> | 94% | 52,794 psi | 87% | 3051 fps | 99.2% |
| Bofors RP7 | <<locked>> | 84% | 53,534 psi | 88% | 2943 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,083 psi | 86% | 3031 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 84% | 52,562 psi | 86% | 2995 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 82% | 51,851 psi | 85% | 2949 fps | 99% |
| Hodgdon H4831 | <<locked>> | 92% | 52,924 psi | 87% | 2992 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 51,909 psi | 85% | 2972 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 52,112 psi | 86% | 2927 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,025 psi | 85% | 3153 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 84% | 52,649 psi | 86% | 3028 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,883 psi | 61% | 1886 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,955 psi | 90% | 2982 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,042 psi | 90% | 2969 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 54,694 psi | 90% | 2989 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 54,186 psi | 89% | 2979 fps | 98% |
| IMR 7828 SSC | <<locked>> | 96% | 54,346 psi | 89% | 3091 fps | 98.5% |
| Lovex S065 | <<locked>> | 84% | 52,301 psi | 86% | 2913 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 53,664 psi | 88% | 2963 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,969 psi | 89% | 2976 fps | 100% |
| Norma 204 | <<locked>> | 86% | 52,228 psi | 86% | 2979 fps | 98.8% |
| Norma 217ᴾ | <<locked>> | 100% | 37,594 psi | 62% | 2818 fps | 97.1% |
| Norma MRP | <<locked>> | 92% | 52,417 psi | 86% | 3071 fps | 99.8% |
| Norma URP | <<locked>> | 86% | 52,881 psi | 87% | 2982 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,810 psi | 90% | 3107 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 86% | 51,779 psi | 85% | 2982 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 98% | 53,069 psi | 87% | 3038 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,768 psi | 62% | 1932 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,331 psi | 89% | 3022 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 52,547 psi | 86% | 3048 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,620 psi | 86% | 3150 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 47,456 psi | 78% | 3018 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 82% | 54,607 psi | 90% | 2946 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 52,910 psi | 87% | 2963 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 92% | 54,056 psi | 89% | 3028 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 84% | 53,534 psi | 88% | 2943 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 84% | 52,301 psi | 86% | 2913 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 53,664 psi | 88% | 2963 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,694 psi | 90% | 2815 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,868 psi | 90% | 2920 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 53,621 psi | 88% | 3025 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 54,433 psi | 89% | 2940 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,462 psi | 89% | 2956 fps | 97.8% |
| Somchem S365 | <<locked>> | 88% | 53,040 psi | 87% | 2986 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,752 psi | 90% | 3002 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 82% | 52,083 psi | 86% | 2858 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,679 psi | 90% | 2972 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,143 psi | 89% | 2979 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 86% | 53,911 psi | 89% | 2979 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 52,663 psi | 86% | 3002 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 52,388 psi | 86% | 3064 fps | 97.8% |
| Vihtavuori N565 | <<locked>> | 98% | 52,141 psi | 86% | 3041 fps | 98% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 48,834 psi | 80% | 3028 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,201 psi | 89% | 2930 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 52,562 psi | 86% | 2995 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 54,752 psi | 90% | 3163 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,491 psi | 89% | 2995 fps | 99.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 32,924 psi | 54% | 2559 fps | 96.7% |
| Accurate 4350 | <<locked>> | 80% | 44,251 psi | 73% | 2825 fps | 99.9% |
| Accurate High Country | <<locked>> | 84% | 40,944 psi | 67% | 2851 fps | 95.5% |
| Accurate MAGPRO | <<locked>> | 88% | 44,512 psi | 73% | 2913 fps | 95.2% |
| ADI AR 2209 | <<locked>> | 80% | 36,941 psi | 61% | 2687 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 88% | 43,134 psi | 71% | 2861 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 96% | 41,365 psi | 68% | 2812 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 92% | 32,489 psi | 53% | 2644 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,289 psi | 61% | 2690 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,351 psi | 70% | 2831 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,863 psi | 80% | 2956 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,956 psi | 61% | 2684 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 84% | 37,637 psi | 62% | 2743 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,560 psi | 52% | 2589 fps | 99.3% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,443 psi | 48% | 2546 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,345 psi | 56% | 2723 fps | 98.5% |
| Bofors RP15 | <<locked>> | 86% | 37,318 psi | 61% | 2736 fps | 95.4% |
| Bofors RP30 | <<locked>> | 94% | 39,958 psi | 66% | 2828 fps | 95.7% |
| Bofors RP5 | <<locked>> | 84% | 37,637 psi | 62% | 2743 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 47,108 psi | 77% | 2828 fps | 98.8% |
| Hodgdon H1000 | <<locked>> | 92% | 39,740 psi | 65% | 2779 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 45,992 psi | 76% | 2874 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 48,472 psi | 80% | 2890 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 86% | 43,149 psi | 71% | 2805 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 88% | 45,223 psi | 74% | 2848 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,030 psi | 66% | 2713 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 34,954 psi | 57% | 2749 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 45,324 psi | 74% | 2897 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,644 psi | 45% | 1690 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,612 psi | 70% | 2756 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,573 psi | 80% | 2858 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 42,250 psi | 69% | 2772 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 84% | 42,061 psi | 69% | 2746 fps | 95% |
| IMR 7828 SSC | <<locked>> | 88% | 41,379 psi | 68% | 2835 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 46,079 psi | 76% | 2805 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 44,483 psi | 73% | 2792 fps | 98.9% |
| Lovex S071 | <<locked>> | 82% | 30,255 psi | 50% | 2487 fps | 95.6% |
| Norma 204 | <<locked>> | 80% | 42,511 psi | 70% | 2792 fps | 96.8% |
| Norma 217 | <<locked>> | 96% | 33,025 psi | 54% | 2694 fps | 95.1% |
| Norma MRP | 71 gr | 80% | 34,330 psi | 56% | 2690 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 43,555 psi | 72% | 2815 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 41,147 psi | 68% | 2841 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 42,293 psi | 69% | 2805 fps | 99% |
| Ramshot Magnum | <<locked>> | 86% | 34,229 psi | 56% | 2651 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,340 psi | 47% | 1732 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,237 psi | 73% | 2848 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,337 psi | 70% | 2861 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 34,185 psi | 56% | 2730 fps | 96.1% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 44,077 psi | 72% | 2949 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 51,329 psi | 84% | 2894 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 40,944 psi | 67% | 2730 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 80% | 36,260 psi | 60% | 2671 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 47,108 psi | 77% | 2828 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,079 psi | 76% | 2805 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 44,483 psi | 73% | 2792 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,459 psi | 84% | 2769 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,208 psi | 74% | 2753 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 35,940 psi | 59% | 2664 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 51,082 psi | 84% | 2887 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 44,657 psi | 73% | 2779 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 40,292 psi | 66% | 2766 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,796 psi | 60% | 2654 fps | 96.3% |
| Vihtavuori N150 | <<locked>> | 80% | 48,994 psi | 80% | 2812 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,933 psi | 74% | 2808 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 36,419 psi | 60% | 2638 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 44,367 psi | 73% | 2812 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 35,476 psi | 58% | 2671 fps | 99.2% |
| Vihtavuori N560 | 76.3 gr | 86% | 42,569 psi | 70% | 2871 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 92% | 42,424 psi | 70% | 2854 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 98% | 45,455 psi | 75% | 2963 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,990 psi | 72% | 2769 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,151 psi | 76% | 2877 fps | 99.1% |
| Winchester StaBALL HD | 70.2 gr | 80% | 28,007 psi | 46% | 2595 fps | 99.3% |
| Winchester Supreme 780 | <<locked>> | 84% | 38,551 psi | 63% | 2694 fps | 95.9% |
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 Lapua Mag. loaded with the .308 | 175gr | Prvi Partizan FMJ BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,163 fps; across all powders the maximum-charge window runs from 1,886 fps to 3,163 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 (420 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 175.0 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. Winchester StaBALL HD, Norma MRP, Vihtavuori N560 rank at the top here: for .300 Lapua Mag. with the .308 | 175gr | Prvi Partizan FMJ BT 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.