Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 180gr | Sellier & Bellot XRG bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Accurate High Country and Alliant Reloder-26.
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% | 54,505 psi | 89% | 2943 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,359 psi | 86% | 2927 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 52,214 psi | 86% | 3038 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 92% | 52,808 psi | 87% | 3035 fps | 97.6% |
| ADI AR 2209 | <<locked>> | 90% | 52,837 psi | 87% | 2976 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 94% | 54,244 psi | 89% | 3038 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,704 psi | 80% | 2933 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,468 psi | 71% | 2894 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,098 psi | 87% | 2972 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,142 psi | 87% | 2982 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,041 psi | 89% | 2992 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 52,475 psi | 86% | 2966 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,244 psi | 89% | 3035 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 94% | 51,895 psi | 85% | 2956 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,520 psi | 90% | 3068 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 51,866 psi | 85% | 3041 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 53,272 psi | 87% | 3018 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,691 psi | 83% | 3005 fps | 98.6% |
| Bofors RP5 | <<locked>> | 94% | 54,244 psi | 89% | 3035 fps | 99.5% |
| Bofors RP7 | <<locked>> | 84% | 54,824 psi | 90% | 2923 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,534 psi | 88% | 3022 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 84% | 53,809 psi | 88% | 2976 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 52,924 psi | 87% | 2930 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 92% | 54,230 psi | 89% | 2976 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,156 psi | 87% | 2956 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,345 psi | 88% | 2900 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,621 psi | 88% | 3140 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 54,056 psi | 89% | 3012 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,086 psi | 61% | 1864 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 52,866 psi | 87% | 2910 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 52,663 psi | 86% | 2890 fps | 99.8% |
| IMR 4831 | <<locked>> | 86% | 52,721 psi | 87% | 2917 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 51,953 psi | 85% | 2904 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 94% | 52,199 psi | 86% | 3015 fps | 98.4% |
| Lovex S065 | <<locked>> | 84% | 53,388 psi | 88% | 2890 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,013 psi | 90% | 2943 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 52,170 psi | 86% | 2907 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,461 psi | 88% | 2959 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 38,972 psi | 64% | 2815 fps | 97.8% |
| Norma MRP | <<locked>> | 92% | 53,983 psi | 89% | 3058 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 54,331 psi | 89% | 2963 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 52,591 psi | 86% | 3031 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 86% | 53,040 psi | 87% | 2966 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,810 psi | 90% | 3028 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,985 psi | 62% | 1909 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 52,228 psi | 86% | 2946 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 53,969 psi | 89% | 3028 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,114 psi | 89% | 3133 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,211 psi | 81% | 3018 fps | 97.1% |
| Rottweil R 904 | <<locked>> | 90% | 54,288 psi | 89% | 2946 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 90% | 52,098 psi | 86% | 2956 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 84% | 54,824 psi | 90% | 2923 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,388 psi | 88% | 2890 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,013 psi | 90% | 2943 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,562 psi | 86% | 2841 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,998 psi | 90% | 3005 fps | 99.5% |
| Somchem S361 | <<locked>> | 88% | 52,185 psi | 86% | 2881 fps | 97.7% |
| Somchem S365 | <<locked>> | 88% | 54,723 psi | 90% | 2963 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 52,678 psi | 86% | 2930 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 82% | 53,359 psi | 88% | 2838 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 52,620 psi | 86% | 2900 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 52,025 psi | 85% | 2907 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 84% | 51,808 psi | 85% | 2904 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,186 psi | 89% | 2982 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,838 psi | 88% | 3051 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 98% | 53,795 psi | 88% | 3031 fps | 98.5% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,241 psi | 82% | 3018 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 51,866 psi | 85% | 2858 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,983 psi | 89% | 2979 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 52,808 psi | 87% | 3091 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,257 psi | 86% | 2920 fps | 99.1% |
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% | 34,185 psi | 56% | 2552 fps | 97.4% |
| Accurate 4350 | <<locked>> | 80% | 45,672 psi | 75% | 2812 fps | 100% |
| Accurate High Country | 72.4 gr | 82% | 39,465 psi | 65% | 2779 fps | 95.3% |
| Accurate MAGPRO | 77.4 gr | 86% | 42,931 psi | 70% | 2844 fps | 95% |
| ADI AR 2209 | <<locked>> | 80% | 37,985 psi | 62% | 2677 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 86% | 41,568 psi | 68% | 2792 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 94% | 39,943 psi | 66% | 2746 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 90% | 31,604 psi | 52% | 2585 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,421 psi | 63% | 2680 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,540 psi | 71% | 2815 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,343 psi | 83% | 2936 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,072 psi | 63% | 2677 fps | 96% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,274 psi | 60% | 2674 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,677 psi | 54% | 2582 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,543 psi | 47% | 2484 fps | 95.6% |
| Alliant Reloder-26 | 72.8 gr | 80% | 35,708 psi | 59% | 2723 fps | 99.1% |
| Bofors RP15 | <<locked>> | 84% | 36,085 psi | 59% | 2667 fps | 95.2% |
| Bofors RP30 | <<locked>> | 92% | 38,638 psi | 63% | 2762 fps | 95.6% |
| Bofors RP5 | <<locked>> | 82% | 36,274 psi | 60% | 2674 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 48,254 psi | 79% | 2812 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 90% | 38,247 psi | 63% | 2710 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 47,268 psi | 78% | 2861 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 80% | 49,690 psi | 82% | 2874 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 84% | 41,394 psi | 68% | 2733 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,584 psi | 72% | 2779 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,234 psi | 68% | 2697 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,143 psi | 59% | 2753 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 46,572 psi | 76% | 2881 fps | 99.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,789 psi | 46% | 1667 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,714 psi | 72% | 2743 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,632 psi | 81% | 2838 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 43,337 psi | 71% | 2756 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,149 psi | 71% | 2733 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 86% | 39,914 psi | 66% | 2766 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 47,239 psi | 78% | 2785 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 45,687 psi | 75% | 2779 fps | 99.2% |
| Lovex S071 | <<locked>> | 80% | 29,501 psi | 48% | 2431 fps | 95.6% |
| Norma 204 | <<locked>> | 80% | 43,729 psi | 72% | 2782 fps | 97.4% |
| Norma 217 | <<locked>> | 94% | 32,082 psi | 53% | 2635 fps | 95% |
| Norma MRP | <<locked>> | 80% | 35,404 psi | 58% | 2684 fps | 96.7% |
| Norma URP | <<locked>> | 80% | 44,831 psi | 74% | 2799 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 39,566 psi | 65% | 2769 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 43,540 psi | 71% | 2792 fps | 99.3% |
| Ramshot Magnum | <<locked>> | 84% | 32,924 psi | 54% | 2582 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,355 psi | 47% | 1703 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,455 psi | 75% | 2831 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,627 psi | 72% | 2848 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,982 psi | 54% | 2661 fps | 95.9% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,337 psi | 70% | 2874 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 39,392 psi | 65% | 2657 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 80% | 37,449 psi | 61% | 2661 fps | 96% |
| Rottweil R 907 | <<locked>> | 80% | 48,254 psi | 79% | 2812 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,239 psi | 78% | 2785 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 45,687 psi | 75% | 2779 fps | 99.2% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,195 psi | 76% | 2733 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,115 psi | 61% | 2657 fps | 95.9% |
| Somchem S361 | <<locked>> | 82% | 42,830 psi | 70% | 2703 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 41,669 psi | 68% | 2753 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,000 psi | 62% | 2644 fps | 97% |
| Vihtavuori N150 | <<locked>> | 80% | 50,212 psi | 82% | 2789 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,180 psi | 76% | 2792 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,172 psi | 58% | 2572 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 45,600 psi | 75% | 2795 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,782 psi | 60% | 2661 fps | 99.6% |
| Vihtavuori N560 | <<locked>> | 84% | 40,988 psi | 67% | 2799 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 90% | 41,002 psi | 67% | 2785 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 98% | 46,963 psi | 77% | 2956 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,092 psi | 74% | 2749 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,268 psi | 78% | 2861 fps | 99.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 29,095 psi | 48% | 2598 fps | 99.8% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,173 psi | 61% | 2625 fps | 95.7% |
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 Lapua Mag. loaded with the .308 | 180gr | Sellier & Bellot XRG. Hodgdon Retumbo delivers the highest muzzle velocity at 3,140 fps; across all powders the maximum-charge window runs from 1,864 fps to 3,140 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 (420 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 180.0 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. Accurate MAGPRO, Accurate High Country, Alliant Reloder-26 rank at the top here: for .300 Lapua Mag. with the .308 | 180gr | Sellier & Bellot XRG 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.