Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 168gr | Sierra Tipped MatchKing bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Ramshot Grand 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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 52,649 psi | 86% | 2933 fps | 99.2% |
| Accurate 3100 | <<locked>> | 96% | 54,781 psi | 90% | 3041 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 52,678 psi | 86% | 3028 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,070 psi | 89% | 3140 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 82% | 54,273 psi | 89% | 2992 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 53,534 psi | 88% | 3081 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 96% | 54,853 psi | 90% | 3140 fps | 98.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,890 psi | 75% | 2959 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,727 psi | 67% | 2913 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,650 psi | 88% | 3091 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,621 psi | 90% | 3104 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 53,069 psi | 87% | 3068 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,607 psi | 90% | 3136 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 96% | 52,112 psi | 86% | 3058 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,372 psi | 84% | 3110 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 51,938 psi | 85% | 3143 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 53,519 psi | 88% | 3117 fps | 98.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,181 psi | 77% | 3035 fps | 97.3% |
| Bofors RP5 | <<locked>> | 96% | 54,607 psi | 90% | 3136 fps | 99.1% |
| Bofors RP7 | <<locked>> | 84% | 52,272 psi | 86% | 2976 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,108 psi | 77% | 2986 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 82% | 51,866 psi | 85% | 3038 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 86% | 52,489 psi | 86% | 3018 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 98% | 54,273 psi | 89% | 3064 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 53,824 psi | 88% | 3058 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 53,882 psi | 88% | 3009 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,270 psi | 83% | 3169 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 86% | 54,911 psi | 90% | 3123 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,811 psi | 60% | 1926 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,417 psi | 88% | 2969 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 52,025 psi | 85% | 2949 fps | 99.5% |
| IMR 4350 | <<locked>> | 88% | 53,577 psi | 88% | 3015 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,592 psi | 88% | 2999 fps | 99.6% |
| IMR 4831 | <<locked>> | 92% | 54,346 psi | 89% | 3041 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 52,779 psi | 87% | 3005 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 94% | 52,852 psi | 87% | 3120 fps | 98% |
| Lovex S065 | <<locked>> | 86% | 54,114 psi | 89% | 2999 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 52,272 psi | 86% | 2992 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,199 psi | 86% | 3005 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 54,433 psi | 89% | 3071 fps | 98.8% |
| Norma MRP | <<locked>> | 94% | 54,360 psi | 89% | 3159 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 54,868 psi | 90% | 3068 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 52,489 psi | 86% | 3123 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 88% | 53,809 psi | 88% | 3074 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 96% | 53,301 psi | 88% | 3097 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,652 psi | 62% | 1972 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,969 psi | 89% | 3094 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 52,649 psi | 86% | 3051 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,636 psi | 90% | 3140 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,720 psi | 83% | 3166 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 82% | 53,142 psi | 87% | 2982 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,940 psi | 90% | 3048 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 92% | 52,460 psi | 86% | 3054 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 84% | 52,272 psi | 86% | 2976 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,114 psi | 89% | 2999 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 52,272 psi | 86% | 2992 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,679 psi | 90% | 3041 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,505 psi | 88% | 2854 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,548 psi | 88% | 2949 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 52,040 psi | 85% | 3051 fps | 98.8% |
| Somchem S355 | <<locked>> | 82% | 53,127 psi | 87% | 2979 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 52,968 psi | 87% | 2982 fps | 97.2% |
| Somchem S365 | <<locked>> | 90% | 54,940 psi | 90% | 3071 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 53,156 psi | 87% | 3031 fps | 99.4% |
| Unknown powder | <<locked>> | 84% | 51,677 psi | 85% | 3015 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,926 psi | 90% | 2963 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 52,011 psi | 85% | 2982 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,143 psi | 89% | 3031 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 84% | 52,605 psi | 86% | 3031 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,447 psi | 89% | 3087 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,868 psi | 90% | 3163 fps | 97.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,983 psi | 89% | 3127 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 52,649 psi | 86% | 2963 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 51,866 psi | 85% | 3038 fps | 99.5% |
| Winchester StaBALL HD | <<locked>> | 98% | 52,489 psi | 86% | 3196 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 54,549 psi | 90% | 3048 fps | 99% |
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 2700 | <<locked>> | 80% | 49,458 psi | 81% | 2877 fps | 98.8% |
| Accurate 3100 | <<locked>> | 80% | 31,850 psi | 52% | 2575 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 42,917 psi | 70% | 2854 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 94% | 50,401 psi | 83% | 3071 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 51,140 psi | 84% | 2943 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,377 psi | 63% | 2772 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 90% | 44,904 psi | 74% | 2946 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 98% | 42,902 psi | 70% | 2894 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 94% | 33,663 psi | 55% | 2720 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,147 psi | 68% | 2861 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,340 psi | 78% | 2986 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,363 psi | 63% | 2769 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,914 psi | 64% | 2825 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,545 psi | 50% | 2608 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,443 psi | 50% | 2621 fps | 95.7% |
| Alliant Reloder-26 | 73.3 gr | 80% | 33,098 psi | 54% | 2740 fps | 97.7% |
| Bofors RP15 | <<locked>> | 88% | 38,580 psi | 63% | 2815 fps | 95.3% |
| Bofors RP30 | <<locked>> | 96% | 41,220 psi | 68% | 2907 fps | 95.6% |
| Bofors RP5 | <<locked>> | 86% | 38,914 psi | 64% | 2825 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 46,006 psi | 76% | 2858 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 96% | 41,176 psi | 68% | 2858 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 48,443 psi | 80% | 2979 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 43,468 psi | 71% | 2841 fps | 97.1% |
| Hodgdon H4831 | <<locked>> | 92% | 44,614 psi | 73% | 2887 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 47,108 psi | 77% | 2936 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,856 psi | 64% | 2743 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 38,508 psi | 63% | 2894 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 43,859 psi | 72% | 2920 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,601 psi | 45% | 1722 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,241 psi | 82% | 2917 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,023 psi | 80% | 2894 fps | 99.1% |
| IMR 4350 | <<locked>> | 80% | 41,539 psi | 68% | 2785 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,427 psi | 78% | 2890 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 37,144 psi | 61% | 2713 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,671 psi | 72% | 2828 fps | 95% |
| IMR 7828 SSC | <<locked>> | 88% | 42,888 psi | 70% | 2917 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 44,976 psi | 74% | 2835 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 43,352 psi | 71% | 2822 fps | 98.4% |
| Lovex S071 | <<locked>> | 84% | 31,198 psi | 51% | 2559 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 41,307 psi | 68% | 2815 fps | 96% |
| Norma MRP | <<locked>> | 82% | 35,462 psi | 58% | 2769 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 42,322 psi | 69% | 2844 fps | 99.6% |
| Ramshot Grand | 78.9 gr | 86% | 41,916 psi | 69% | 2910 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 41,060 psi | 67% | 2831 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 86% | 36,376 psi | 60% | 2753 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,108 psi | 46% | 1762 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,227 psi | 82% | 3035 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,859 psi | 70% | 2874 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,031 psi | 67% | 2884 fps | 99.4% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,520 psi | 58% | 2812 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 49,951 psi | 82% | 2930 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,540 psi | 70% | 2815 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 82% | 37,608 psi | 62% | 2753 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 46,006 psi | 76% | 2858 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,976 psi | 74% | 2835 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 80% | 43,352 psi | 71% | 2822 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,111 psi | 84% | 2986 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,328 psi | 83% | 2808 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,976 psi | 72% | 2776 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,275 psi | 61% | 2746 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 49,792 psi | 82% | 2923 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,412 psi | 76% | 2861 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 38,972 psi | 64% | 2795 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,708 psi | 59% | 2674 fps | 95.5% |
| Unknown powder | <<locked>> | 80% | 45,295 psi | 74% | 2897 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 42,757 psi | 70% | 2759 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,455 psi | 75% | 2867 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 86% | 36,535 psi | 60% | 2687 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 46,108 psi | 76% | 2917 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 34,258 psi | 56% | 2690 fps | 98.7% |
| Vihtavuori N560 | <<locked>> | 90% | 44,759 psi | 73% | 2972 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 94% | 43,845 psi | 72% | 2933 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,728 psi | 70% | 2799 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,443 psi | 80% | 2979 fps | 99.2% |
| Winchester StaBALL HD | 70.4 gr | 80% | 27,093 psi | 44% | 2602 fps | 98.5% |
| Winchester Supreme 780 | <<locked>> | 82% | 38,087 psi | 63% | 2730 fps | 95.2% |
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 82 powders for .300 Lapua Mag. loaded with the .308 | 168gr | Sierra Tipped MatchKing. Winchester StaBALL HD delivers the highest muzzle velocity at 3,196 fps; across all powders the maximum-charge window runs from 1,926 fps to 3,196 fps. ADI AR 2217 gives the best case fill at 100 %, and 82 of the 82 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 168.0 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. Alliant Reloder-26, Ramshot Grand, Winchester StaBALL HD rank at the top here: for .300 Lapua Mag. with the .308 | 168gr | Sierra Tipped MatchKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, IMR 8133 Enduron, Vihtavuori N570 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.