Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 165gr | Sellier & Bellot eXergy TXRG bullet and 76 powders. The key underlying parameters are shown in the table above.
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% | 53,011 psi | 87% | 3035 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 54,708 psi | 90% | 3084 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 54,360 psi | 89% | 3192 fps | 98.1% |
| Accurate MAGPRO | <<locked>> | 94% | 51,430 psi | 84% | 3120 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 82% | 53,055 psi | 87% | 2995 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 52,098 psi | 86% | 3074 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 96% | 53,243 psi | 87% | 3130 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,508 psi | 65% | 2897 fps | 97.5% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 52,301 psi | 86% | 3074 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,128 psi | 89% | 3018 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 52,011 psi | 85% | 3087 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,939 psi | 87% | 3104 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 51,663 psi | 85% | 3061 fps | 98.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,866 psi | 87% | 3127 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,635 psi | 88% | 3107 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,574 psi | 81% | 3100 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,911 psi | 89% | 3199 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 51,822 psi | 85% | 3107 fps | 98.5% |
| Bofors RP3 | <<locked>> | 82% | 55,100 psi | 90% | 3038 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,542 psi | 75% | 3022 fps | 96.6% |
| Bofors RP5 | <<locked>> | 96% | 52,866 psi | 87% | 3127 fps | 98.7% |
| Bofors RP7 | <<locked>> | 86% | 54,331 psi | 89% | 3028 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,979 psi | 80% | 3038 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 86% | 52,982 psi | 87% | 3077 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 84% | 52,475 psi | 86% | 3035 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 94% | 53,287 psi | 87% | 3064 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 94% | 52,228 psi | 86% | 3048 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 52,301 psi | 86% | 3005 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,675 psi | 80% | 3156 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 86% | 53,171 psi | 87% | 3114 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,666 psi | 60% | 1932 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 52,214 psi | 86% | 3009 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,460 psi | 86% | 2999 fps | 99.4% |
| IMR 4831 | <<locked>> | 88% | 51,619 psi | 85% | 3018 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,694 psi | 90% | 3054 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 98% | 54,636 psi | 90% | 3166 fps | 98% |
| Lovex S065 | <<locked>> | 86% | 52,953 psi | 87% | 2999 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 54,259 psi | 89% | 3045 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,517 psi | 83% | 2995 fps | 99.7% |
| Norma 204 | <<locked>> | 88% | 52,765 psi | 87% | 3061 fps | 98.4% |
| Norma MRP | <<locked>> | 94% | 52,489 psi | 86% | 3153 fps | 99.5% |
| Norma URP | <<locked>> | 88% | 53,316 psi | 88% | 3064 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 51,198 psi | 84% | 3117 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 88% | 52,141 psi | 86% | 3068 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,417 psi | 88% | 3117 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,507 psi | 62% | 1982 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,969 psi | 90% | 3038 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,272 psi | 86% | 3091 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,810 psi | 90% | 3107 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,895 psi | 87% | 3133 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,979 psi | 80% | 3150 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 82% | 51,822 psi | 85% | 2982 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,534 psi | 88% | 3045 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 94% | 54,505 psi | 89% | 3107 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 54,331 psi | 89% | 3028 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,953 psi | 87% | 2999 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 54,259 psi | 89% | 3045 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,200 psi | 87% | 3041 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,301 psi | 86% | 2858 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,257 psi | 86% | 2946 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,056 psi | 89% | 3104 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 55,100 psi | 90% | 3028 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,100 psi | 90% | 3031 fps | 97.3% |
| Somchem S365 | <<locked>> | 90% | 53,229 psi | 87% | 3071 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,013 psi | 90% | 3081 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 84% | 52,953 psi | 87% | 2949 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 51,692 psi | 85% | 3002 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,418 psi | 89% | 3054 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 88% | 54,389 psi | 89% | 3064 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,634 psi | 86% | 3084 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 52,576 psi | 86% | 3140 fps | 97.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,083 psi | 86% | 3114 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,723 psi | 90% | 3015 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,185 psi | 87% | 3081 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,027 psi | 89% | 3245 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,100 psi | 90% | 3074 fps | 98.8% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 30,821 psi | 51% | 2566 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 41,626 psi | 68% | 2848 fps | 99.5% |
| Accurate High Country | <<locked>> | 88% | 43,961 psi | 72% | 2989 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 92% | 48,051 psi | 79% | 3054 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 49,951 psi | 82% | 2943 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,972 psi | 66% | 2828 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 90% | 43,468 psi | 71% | 2933 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 34,722 psi | 57% | 2766 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 40,089 psi | 66% | 2825 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,908 psi | 84% | 2966 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,958 psi | 66% | 2854 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,919 psi | 75% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,726 psi | 65% | 2818 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,321 psi | 66% | 2874 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,588 psi | 49% | 2598 fps | 98.2% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,459 psi | 52% | 2667 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,908 psi | 52% | 2723 fps | 97% |
| Bofors RP15 | <<locked>> | 90% | 39,929 psi | 66% | 2864 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 51,576 psi | 85% | 2982 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,511 psi | 70% | 2956 fps | 95.7% |
| Bofors RP5 | <<locked>> | 88% | 40,321 psi | 66% | 2874 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 44,889 psi | 74% | 2854 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 96% | 42,714 psi | 70% | 2907 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 43,308 psi | 71% | 2894 fps | 98% |
| Hodgdon H4350 | <<locked>> | 80% | 46,079 psi | 76% | 2913 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 46,514 psi | 76% | 2940 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,629 psi | 75% | 2923 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,652 psi | 62% | 2736 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,362 psi | 61% | 2877 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 42,496 psi | 70% | 2910 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,528 psi | 45% | 1732 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,480 psi | 66% | 2779 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,340 psi | 76% | 2884 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 39,668 psi | 65% | 2789 fps | 99.2% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,339 psi | 74% | 2881 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 92% | 44,527 psi | 73% | 2969 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 43,859 psi | 72% | 2831 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 42,250 psi | 69% | 2818 fps | 97.9% |
| Lovex S071 | <<locked>> | 86% | 32,198 psi | 53% | 2605 fps | 95.6% |
| Norma 204 | <<locked>> | 80% | 40,219 psi | 66% | 2812 fps | 95.3% |
| Norma MRP | <<locked>> | 82% | 34,418 psi | 56% | 2756 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 41,118 psi | 68% | 2838 fps | 99.3% |
| Ramshot Grand | <<locked>> | 92% | 44,483 psi | 73% | 2979 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 39,929 psi | 66% | 2825 fps | 98% |
| Ramshot Magnum | <<locked>> | 90% | 36,883 psi | 61% | 2782 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,021 psi | 46% | 1772 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,590 psi | 85% | 2982 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,733 psi | 80% | 3035 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,423 psi | 68% | 2864 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,914 psi | 66% | 2877 fps | 99% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,840 psi | 60% | 2861 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 80% | 48,660 psi | 80% | 2927 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,135 psi | 72% | 2864 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 84% | 38,928 psi | 64% | 2802 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 44,889 psi | 74% | 2854 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,859 psi | 72% | 2831 fps | 99% |
| Shooters World SW4350 | <<locked>> | 80% | 42,250 psi | 69% | 2818 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,850 psi | 82% | 2986 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,153 psi | 81% | 2812 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,917 psi | 70% | 2772 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,580 psi | 63% | 2795 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 48,588 psi | 80% | 2923 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,225 psi | 79% | 2913 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 37,681 psi | 62% | 2789 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,072 psi | 61% | 2726 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 46,572 psi | 76% | 2848 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,467 psi | 70% | 2831 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 36,521 psi | 60% | 2703 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 41,800 psi | 69% | 2835 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 33,127 psi | 54% | 2680 fps | 98.2% |
| Vihtavuori N560 | <<locked>> | 90% | 45,774 psi | 75% | 3009 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 96% | 45,295 psi | 74% | 2982 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,495 psi | 68% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,497 psi | 71% | 2897 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,252 psi | 43% | 2585 fps | 97.7% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,885 psi | 64% | 2766 fps | 95.1% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 76 powders for .300 Lapua Mag. loaded with the .308 | 165gr | Sellier & Bellot eXergy TXRG. Winchester StaBALL HD delivers the highest muzzle velocity at 3,245 fps; across all powders the maximum-charge window runs from 1,932 fps to 3,245 fps. ADI AR 2225 gives the best case fill at 100 %, and 76 of the 76 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 165.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP30 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.