Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 183gr | Peregrine Plainsmaster (VLR-4) bullet and 77 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% | 51,663 psi | 85% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 53,200 psi | 87% | 2920 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 53,098 psi | 87% | 3035 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 94% | 54,114 psi | 89% | 3038 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 82% | 54,998 psi | 90% | 2884 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 54,259 psi | 89% | 2979 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 94% | 51,909 psi | 85% | 2979 fps | 98.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,325 psi | 76% | 2867 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,118 psi | 68% | 2825 fps | 99% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 54,462 psi | 89% | 2976 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 54,317 psi | 89% | 2979 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 51,677 psi | 85% | 2940 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 53,737 psi | 88% | 2966 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 94% | 51,721 psi | 85% | 2976 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 52,794 psi | 87% | 2949 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,069 psi | 85% | 3009 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 52,750 psi | 87% | 3035 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 54,201 psi | 89% | 2940 fps | 96% |
| Bofors RP15 | <<locked>> | 98% | 54,360 psi | 89% | 3018 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,863 psi | 79% | 2936 fps | 98.2% |
| Bofors RP5 | <<locked>> | 94% | 51,721 psi | 85% | 2976 fps | 99.2% |
| Bofors RP7 | <<locked>> | 84% | 52,591 psi | 86% | 2867 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,155 psi | 84% | 2959 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 84% | 51,547 psi | 85% | 2920 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 84% | 54,534 psi | 90% | 2936 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 51,895 psi | 85% | 2917 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,520 psi | 90% | 2959 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,505 psi | 89% | 2897 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,024 psi | 84% | 3074 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 84% | 51,517 psi | 85% | 2953 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,753 psi | 60% | 1837 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,114 psi | 89% | 2910 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,288 psi | 89% | 2897 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 53,606 psi | 88% | 2913 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 53,345 psi | 88% | 2907 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 96% | 53,447 psi | 88% | 3015 fps | 98.7% |
| Lovex S065 | <<locked>> | 86% | 54,534 psi | 90% | 2890 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 52,736 psi | 87% | 2887 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,547 psi | 86% | 2897 fps | 100% |
| Norma 204 | <<locked>> | 88% | 55,027 psi | 90% | 2966 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 36,506 psi | 60% | 2743 fps | 97.1% |
| Norma MRP | <<locked>> | 94% | 55,056 psi | 90% | 3054 fps | 100% |
| Norma URP | <<locked>> | 86% | 51,982 psi | 85% | 2907 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 53,940 psi | 89% | 3035 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 54,404 psi | 89% | 2966 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 52,083 psi | 86% | 2966 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,623 psi | 62% | 1880 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,013 psi | 90% | 2979 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 53,316 psi | 88% | 2946 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 51,619 psi | 85% | 2972 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,430 psi | 84% | 3071 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 46,180 psi | 76% | 2943 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 82% | 53,548 psi | 88% | 2871 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 52,127 psi | 86% | 2890 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 92% | 53,040 psi | 87% | 2953 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 84% | 52,591 psi | 86% | 2867 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,534 psi | 90% | 2890 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 52,736 psi | 87% | 2887 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,056 psi | 89% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,838 psi | 88% | 2844 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 52,634 psi | 86% | 2949 fps | 99.3% |
| Somchem S355 | <<locked>> | 82% | 53,490 psi | 88% | 2864 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 53,490 psi | 88% | 2884 fps | 97.9% |
| Somchem S365 | <<locked>> | 88% | 51,967 psi | 85% | 2907 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 53,490 psi | 88% | 2927 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 54,578 psi | 90% | 2835 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 53,853 psi | 88% | 2900 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 53,127 psi | 87% | 2904 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 86% | 52,910 psi | 87% | 2904 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,810 psi | 90% | 2976 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,042 psi | 90% | 3051 fps | 98.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,621 psi | 90% | 3028 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 47,645 psi | 78% | 2953 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 53,330 psi | 88% | 2858 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 51,750 psi | 85% | 2923 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 53,548 psi | 88% | 3084 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,490 psi | 88% | 2920 fps | 99.3% |
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% | 31,691 psi | 52% | 2480 fps | 96.6% |
| Accurate 4350 | <<locked>> | 80% | 43,062 psi | 71% | 2749 fps | 99.9% |
| Accurate High Country | <<locked>> | 84% | 39,885 psi | 65% | 2776 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 88% | 43,511 psi | 71% | 2838 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 51,677 psi | 85% | 2835 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 36,114 psi | 59% | 2618 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 86% | 39,450 psi | 65% | 2723 fps | 95% |
| ADI AR 2217 | <<locked>> | 96% | 40,553 psi | 67% | 2746 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 92% | 31,517 psi | 52% | 2572 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,463 psi | 60% | 2621 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,655 psi | 68% | 2759 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,935 psi | 79% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,129 psi | 59% | 2615 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 84% | 36,695 psi | 60% | 2671 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,676 psi | 50% | 2516 fps | 99.3% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,543 psi | 47% | 2474 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,330 psi | 55% | 2651 fps | 98.6% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 50,981 psi | 84% | 2884 fps | 95.1% |
| Bofors RP15 | <<locked>> | 86% | 36,376 psi | 60% | 2661 fps | 95.5% |
| Bofors RP30 | <<locked>> | 94% | 38,914 psi | 64% | 2756 fps | 95.8% |
| Bofors RP5 | <<locked>> | 84% | 36,695 psi | 60% | 2671 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 46,354 psi | 76% | 2759 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 92% | 38,827 psi | 64% | 2710 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 45,005 psi | 74% | 2802 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 80% | 47,747 psi | 78% | 2818 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 42,264 psi | 69% | 2736 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 86% | 41,394 psi | 68% | 2717 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,015 psi | 64% | 2641 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 33,997 psi | 56% | 2677 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 44,454 psi | 73% | 2825 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,572 psi | 45% | 1644 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,829 psi | 69% | 2687 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,805 psi | 78% | 2785 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 41,234 psi | 68% | 2697 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 84% | 41,263 psi | 68% | 2677 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 88% | 40,466 psi | 66% | 2762 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 45,266 psi | 74% | 2733 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 43,497 psi | 71% | 2723 fps | 99% |
| Lovex S071 | <<locked>> | 82% | 29,095 psi | 48% | 2411 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 41,785 psi | 69% | 2723 fps | 97% |
| Norma 217 | <<locked>> | 98% | 33,982 psi | 56% | 2677 fps | 96.1% |
| Norma MRP | 69 gr | 80% | 33,301 psi | 55% | 2615 fps | 96% |
| Norma URP | <<locked>> | 80% | 42,583 psi | 70% | 2740 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 40,118 psi | 66% | 2769 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 41,510 psi | 68% | 2736 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 86% | 33,141 psi | 54% | 2575 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,079 psi | 46% | 1683 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,952 psi | 84% | 2923 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,149 psi | 71% | 2772 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,481 psi | 68% | 2785 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,069 psi | 54% | 2651 fps | 96% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 42,772 psi | 70% | 2871 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 50,212 psi | 82% | 2818 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 40,147 psi | 66% | 2661 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 35,317 psi | 58% | 2598 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 46,354 psi | 76% | 2759 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,266 psi | 74% | 2733 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 43,497 psi | 71% | 2723 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,691 psi | 83% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,135 psi | 72% | 2677 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 34,998 psi | 57% | 2592 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 50,241 psi | 82% | 2815 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 43,656 psi | 72% | 2707 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 39,291 psi | 65% | 2690 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,810 psi | 59% | 2582 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 80% | 48,022 psi | 79% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,019 psi | 72% | 2736 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 82% | 33,199 psi | 55% | 2510 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 43,294 psi | 71% | 2736 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 34,287 psi | 56% | 2592 fps | 99.2% |
| Vihtavuori N560 | 74.1 gr | 86% | 41,495 psi | 68% | 2795 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 92% | 41,307 psi | 68% | 2779 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 98% | 44,222 psi | 73% | 2884 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,047 psi | 71% | 2697 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,194 psi | 74% | 2805 fps | 99.1% |
| Winchester StaBALL HD | 68.3 gr | 80% | 27,064 psi | 44% | 2520 fps | 99.3% |
| Winchester Supreme 780 | <<locked>> | 82% | 35,056 psi | 58% | 2562 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 77 powders for .300 Lapua Mag. loaded with the .308 | 183gr | Peregrine Plainsmaster (VLR-4). Winchester StaBALL HD delivers the highest muzzle velocity at 3,084 fps; across all powders the maximum-charge window runs from 1,837 fps to 3,084 fps. ADI AR 2217 gives the best case fill at 100 %, and 77 of the 77 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 183.0 gr projectile in 0.308" calls for a 1:10.5 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 | 183gr | Peregrine Plainsmaster (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.