Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 168gr | Hammer HHT bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Alliant Reloder-26 and Ramshot Grand.
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% | 53,853 psi | 88% | 3038 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 51,750 psi | 85% | 3022 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 52,649 psi | 86% | 3130 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 82% | 53,853 psi | 88% | 2995 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 52,924 psi | 87% | 3077 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 96% | 54,331 psi | 89% | 3140 fps | 98.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,223 psi | 74% | 2953 fps | 96.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,001 psi | 66% | 2904 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,810 psi | 90% | 3015 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 52,881 psi | 87% | 3087 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,954 psi | 89% | 3100 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 52,605 psi | 86% | 3068 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 53,969 psi | 89% | 3133 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,926 psi | 90% | 3107 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,705 psi | 83% | 3107 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 51,169 psi | 84% | 3136 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 52,939 psi | 87% | 3114 fps | 98.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,441 psi | 76% | 3025 fps | 97.2% |
| Bofors RP5 | <<locked>> | 96% | 53,969 psi | 89% | 3133 fps | 99.1% |
| Bofors RP7 | <<locked>> | 86% | 54,868 psi | 90% | 3028 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,024 psi | 82% | 3051 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 86% | 53,824 psi | 88% | 3081 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 53,316 psi | 88% | 3038 fps | 99% |
| Hodgdon H4831 | <<locked>> | 94% | 54,404 psi | 89% | 3074 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 53,359 psi | 88% | 3058 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 53,185 psi | 87% | 3005 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,617 psi | 81% | 3163 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 86% | 54,157 psi | 89% | 3117 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 60% | 1929 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 52,968 psi | 87% | 3012 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,142 psi | 87% | 2999 fps | 99.6% |
| IMR 4831 | <<locked>> | 88% | 52,344 psi | 86% | 3015 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 52,170 psi | 86% | 3002 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 96% | 52,098 psi | 86% | 3114 fps | 97.9% |
| Lovex S065 | <<locked>> | 86% | 53,461 psi | 88% | 2999 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,911 psi | 90% | 3045 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,314 psi | 84% | 2995 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 53,780 psi | 88% | 3064 fps | 98.8% |
| Norma MRP | <<locked>> | 94% | 53,679 psi | 88% | 3156 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 54,157 psi | 89% | 3064 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 52,504 psi | 86% | 3130 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 88% | 53,098 psi | 87% | 3068 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,592 psi | 90% | 3127 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,507 psi | 62% | 1975 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,417 psi | 88% | 3091 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 51,793 psi | 85% | 3045 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,128 psi | 89% | 3140 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,096 psi | 82% | 3159 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 82% | 52,344 psi | 86% | 2976 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,302 psi | 89% | 3048 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 92% | 51,895 psi | 85% | 3051 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 86% | 54,868 psi | 90% | 3028 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 53,461 psi | 88% | 2999 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,911 psi | 90% | 3045 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,114 psi | 89% | 3041 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,866 psi | 87% | 2854 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,852 psi | 87% | 2949 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,056 psi | 90% | 3110 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 52,243 psi | 86% | 2972 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 52,402 psi | 86% | 2979 fps | 97.1% |
| Somchem S365 | <<locked>> | 90% | 54,157 psi | 89% | 3064 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 52,286 psi | 86% | 3022 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 84% | 53,534 psi | 88% | 2946 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 52,533 psi | 86% | 3002 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 51,866 psi | 85% | 3002 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 86% | 51,692 psi | 85% | 3005 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 53,490 psi | 88% | 3081 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 53,708 psi | 88% | 3150 fps | 97.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,127 psi | 87% | 3120 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 52,011 psi | 85% | 2959 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,027 psi | 89% | 3084 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 51,822 psi | 85% | 3186 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 52,243 psi | 86% | 3018 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% | 30,705 psi | 50% | 2552 fps | 95.3% |
| Accurate 4350 | <<locked>> | 80% | 41,843 psi | 69% | 2841 fps | 99.6% |
| Accurate MAGPRO | 82.3 gr | 90% | 45,455 psi | 75% | 2989 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 50,531 psi | 83% | 2940 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 37,797 psi | 62% | 2766 fps | 95% |
| ADI AR 2213 | <<locked>> | 90% | 44,208 psi | 73% | 2940 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 98% | 42,264 psi | 69% | 2887 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 96% | 35,114 psi | 58% | 2772 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,430 psi | 84% | 2963 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,466 psi | 66% | 2854 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,702 psi | 77% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 37,739 psi | 62% | 2762 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,174 psi | 63% | 2815 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,675 psi | 49% | 2592 fps | 98.5% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,689 psi | 49% | 2605 fps | 95.3% |
| Alliant Reloder-26 | 74 gr | 80% | 32,213 psi | 53% | 2720 fps | 97.4% |
| Bofors RP15 | <<locked>> | 88% | 37,826 psi | 62% | 2802 fps | 95.1% |
| Bofors RP30 | <<locked>> | 96% | 40,451 psi | 66% | 2897 fps | 95.4% |
| Bofors RP5 | <<locked>> | 86% | 38,174 psi | 63% | 2815 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 45,368 psi | 74% | 2854 fps | 98.2% |
| Hodgdon H1000 | <<locked>> | 94% | 40,567 psi | 67% | 2851 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 43,859 psi | 72% | 2894 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 80% | 46,702 psi | 77% | 2917 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 88% | 44,106 psi | 72% | 2884 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,441 psi | 76% | 2930 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,058 psi | 62% | 2733 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,855 psi | 62% | 2887 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 43,163 psi | 71% | 2913 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,412 psi | 45% | 1726 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,973 psi | 67% | 2779 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,818 psi | 77% | 2884 fps | 98.8% |
| IMR 4831 | <<locked>> | 80% | 40,103 psi | 66% | 2789 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,934 psi | 75% | 2884 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 90% | 42,337 psi | 70% | 2913 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 44,135 psi | 72% | 2828 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 42,482 psi | 70% | 2815 fps | 98.3% |
| Lovex S071 | <<locked>> | 84% | 30,197 psi | 50% | 2539 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 40,698 psi | 67% | 2812 fps | 95.9% |
| Norma MRP | <<locked>> | 82% | 34,708 psi | 57% | 2756 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 41,510 psi | 68% | 2835 fps | 99.6% |
| Ramshot Grand | 80.1 gr | 90% | 41,974 psi | 69% | 2917 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 40,393 psi | 66% | 2825 fps | 98.4% |
| Ramshot Magnum | <<locked>> | 90% | 37,289 psi | 61% | 2785 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,891 psi | 46% | 1765 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,617 psi | 81% | 3031 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,858 psi | 69% | 2861 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,379 psi | 66% | 2877 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,606 psi | 57% | 2792 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 48,994 psi | 80% | 2923 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 41,930 psi | 69% | 2808 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 82% | 36,767 psi | 60% | 2740 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 45,368 psi | 74% | 2854 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,135 psi | 72% | 2828 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 42,482 psi | 70% | 2815 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,546 psi | 83% | 2982 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,719 psi | 82% | 2808 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,279 psi | 71% | 2772 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 39,044 psi | 64% | 2795 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 48,979 psi | 80% | 2920 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,672 psi | 75% | 2854 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 38,232 psi | 63% | 2789 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,882 psi | 57% | 2664 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 46,963 psi | 77% | 2841 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,873 psi | 70% | 2831 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 36,985 psi | 61% | 2703 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 42,250 psi | 69% | 2831 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 33,243 psi | 55% | 2674 fps | 98.5% |
| Vihtavuori N560 | <<locked>> | 88% | 43,410 psi | 71% | 2946 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 94% | 43,033 psi | 71% | 2923 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,105 psi | 69% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,034 psi | 72% | 2897 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,252 psi | 43% | 2579 fps | 98.1% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,363 psi | 65% | 2769 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 79 powders for .300 Lapua Mag. loaded with the .308 | 168gr | Hammer HHT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,186 fps; across all powders the maximum-charge window runs from 1,929 fps to 3,186 fps. ADI AR 2217 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.308" calls for a 1:13.5 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. Accurate MAGPRO, Alliant Reloder-26, Ramshot Grand rank at the top here: for .300 Lapua Mag. with the .308 | 168gr | Hammer HHT 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 N170 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.