Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 175gr | Barnes LRX BT bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 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>> | 96% | 53,127 psi | 87% | 2963 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,824 psi | 90% | 3005 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 54,650 psi | 90% | 3120 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 94% | 51,735 psi | 85% | 3051 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 82% | 53,316 psi | 88% | 2920 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 52,388 psi | 86% | 3005 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 96% | 53,505 psi | 88% | 3061 fps | 98.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,628 psi | 73% | 2881 fps | 96.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,349 psi | 65% | 2831 fps | 98.1% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 52,591 psi | 86% | 3002 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,273 psi | 89% | 2943 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 52,388 psi | 86% | 3012 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,388 psi | 88% | 3028 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 51,924 psi | 85% | 2992 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 53,055 psi | 87% | 3054 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,128 psi | 89% | 3031 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,806 psi | 82% | 3031 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,201 psi | 89% | 3120 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 52,054 psi | 85% | 3035 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 54,984 psi | 90% | 2956 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,759 psi | 75% | 2953 fps | 97.3% |
| Bofors RP5 | <<locked>> | 96% | 53,055 psi | 87% | 3054 fps | 99.1% |
| Bofors RP7 | <<locked>> | 86% | 54,404 psi | 89% | 2953 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,255 psi | 81% | 2979 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 86% | 53,301 psi | 88% | 3009 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 52,678 psi | 86% | 2963 fps | 99% |
| Hodgdon H4831 | <<locked>> | 94% | 53,737 psi | 88% | 3002 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 52,649 psi | 86% | 2982 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 52,591 psi | 86% | 2930 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,791 psi | 80% | 3087 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 86% | 53,403 psi | 88% | 3041 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,637 psi | 60% | 1873 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 52,504 psi | 86% | 2940 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,591 psi | 86% | 2927 fps | 99.6% |
| IMR 4831 | <<locked>> | 88% | 51,779 psi | 85% | 2943 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,042 psi | 90% | 2989 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 98% | 54,998 psi | 90% | 3100 fps | 98.5% |
| Lovex S065 | <<locked>> | 86% | 52,939 psi | 87% | 2923 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,375 psi | 89% | 2969 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,531 psi | 83% | 2923 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 52,997 psi | 87% | 2989 fps | 98.8% |
| Norma MRP | <<locked>> | 94% | 52,823 psi | 87% | 3077 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 53,577 psi | 88% | 2992 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 51,561 psi | 85% | 3051 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 88% | 52,315 psi | 86% | 2992 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,780 psi | 88% | 3048 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,478 psi | 62% | 1919 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,085 psi | 90% | 2963 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,649 psi | 86% | 3012 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,795 psi | 90% | 3028 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 53,258 psi | 87% | 3061 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,255 psi | 81% | 3084 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 82% | 51,837 psi | 85% | 2904 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,751 psi | 88% | 2972 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 94% | 54,621 psi | 90% | 3035 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 54,404 psi | 89% | 2953 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,939 psi | 87% | 2923 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,375 psi | 89% | 2969 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,388 psi | 88% | 2963 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,388 psi | 86% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,243 psi | 86% | 2874 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,172 psi | 89% | 3031 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 51,677 psi | 85% | 2897 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 51,837 psi | 85% | 2907 fps | 97.1% |
| Somchem S365 | <<locked>> | 90% | 53,417 psi | 88% | 2989 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 51,648 psi | 85% | 2949 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 84% | 52,953 psi | 87% | 2871 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 51,880 psi | 85% | 2927 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,650 psi | 90% | 2982 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 88% | 54,491 psi | 89% | 2986 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,721 psi | 87% | 3005 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 52,895 psi | 87% | 3071 fps | 97.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,170 psi | 86% | 3041 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,114 psi | 90% | 2943 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,301 psi | 88% | 3009 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,824 psi | 90% | 3169 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 51,590 psi | 85% | 2946 fps | 98.7% |
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% | 30,400 psi | 50% | 2493 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 41,423 psi | 68% | 2772 fps | 99.7% |
| Accurate High Country | <<locked>> | 86% | 41,031 psi | 67% | 2854 fps | 95.4% |
| Accurate MAGPRO | <<locked>> | 90% | 44,730 psi | 73% | 2917 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 50,067 psi | 82% | 2867 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 37,275 psi | 61% | 2697 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 90% | 43,569 psi | 72% | 2867 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 98% | 41,582 psi | 68% | 2815 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 96% | 34,548 psi | 57% | 2703 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 37,550 psi | 62% | 2700 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,966 psi | 84% | 2890 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,987 psi | 66% | 2782 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,122 psi | 76% | 2910 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 37,202 psi | 61% | 2690 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,681 psi | 62% | 2746 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,341 psi | 48% | 2530 fps | 98.6% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,312 psi | 48% | 2546 fps | 95.5% |
| Alliant Reloder-26 | 71 gr | 80% | 31,720 psi | 52% | 2654 fps | 97.5% |
| Bofors RP15 | <<locked>> | 88% | 37,333 psi | 61% | 2736 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 51,532 psi | 85% | 2904 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,813 psi | 65% | 2828 fps | 95.5% |
| Bofors RP5 | <<locked>> | 86% | 37,681 psi | 62% | 2746 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 44,817 psi | 74% | 2782 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 40,001 psi | 66% | 2782 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 43,439 psi | 71% | 2825 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 46,253 psi | 76% | 2844 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 43,540 psi | 71% | 2812 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,730 psi | 75% | 2858 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,579 psi | 62% | 2664 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,333 psi | 61% | 2818 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 42,540 psi | 70% | 2841 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,456 psi | 45% | 1677 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,495 psi | 66% | 2710 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,470 psi | 76% | 2815 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 39,566 psi | 65% | 2717 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 86% | 42,569 psi | 70% | 2753 fps | 95% |
| IMR 7828 SSC | <<locked>> | 90% | 41,655 psi | 68% | 2838 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 43,729 psi | 72% | 2759 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 41,945 psi | 69% | 2743 fps | 98.3% |
| Lovex S071 | <<locked>> | 84% | 29,747 psi | 49% | 2477 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 40,190 psi | 66% | 2743 fps | 96% |
| Norma MRP | 70.7 gr | 82% | 34,316 psi | 56% | 2690 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 40,930 psi | 67% | 2762 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 41,423 psi | 68% | 2848 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 39,871 psi | 65% | 2756 fps | 98.4% |
| Ramshot Magnum | <<locked>> | 90% | 36,695 psi | 60% | 2713 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,949 psi | 46% | 1716 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,605 psi | 85% | 2907 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,994 psi | 80% | 2959 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,336 psi | 68% | 2792 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,943 psi | 66% | 2808 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,142 psi | 56% | 2726 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 48,356 psi | 79% | 2848 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 41,452 psi | 68% | 2740 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 82% | 36,347 psi | 60% | 2674 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 44,817 psi | 74% | 2782 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,729 psi | 72% | 2759 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 41,945 psi | 69% | 2743 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,922 psi | 82% | 2910 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,313 psi | 81% | 2736 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,815 psi | 70% | 2703 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,537 psi | 63% | 2726 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 48,501 psi | 80% | 2844 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,121 psi | 74% | 2785 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 37,652 psi | 62% | 2720 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,490 psi | 57% | 2598 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 46,383 psi | 76% | 2769 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,525 psi | 70% | 2762 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 36,463 psi | 60% | 2638 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 41,829 psi | 69% | 2762 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 32,822 psi | 54% | 2608 fps | 98.5% |
| Vihtavuori N560 | 75.8 gr | 88% | 42,772 psi | 70% | 2874 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 94% | 42,235 psi | 69% | 2851 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,568 psi | 68% | 2726 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,627 psi | 72% | 2828 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,860 psi | 42% | 2516 fps | 98.2% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,769 psi | 64% | 2697 fps | 95.8% |
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 | 175gr | Barnes LRX BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,169 fps; across all powders the maximum-charge window runs from 1,873 fps to 3,169 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 175.0 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for .300 Lapua Mag. with the .308 | 175gr | Barnes LRX 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.