Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 150gr | Ferrobull Entox Sport bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Alliant Reloder-16.
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% | 54,694 psi | 90% | 3136 fps | 98.8% |
| Accurate 3100 | <<locked>> | 98% | 53,490 psi | 88% | 3182 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 53,751 psi | 88% | 3120 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 51,430 psi | 84% | 3176 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 54,215 psi | 89% | 3163 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 52,794 psi | 87% | 3228 fps | 97.9% |
| ADI AR 2213 | <<locked>> | 98% | 54,230 psi | 89% | 3284 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,911 psi | 90% | 3182 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 52,605 psi | 86% | 3248 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,867 psi | 88% | 3268 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,373 psi | 86% | 3215 fps | 97.9% |
| Alliant Reloder-22 | <<locked>> | 98% | 53,447 psi | 88% | 3278 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,085 psi | 89% | 3261 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,920 psi | 77% | 3186 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,462 psi | 89% | 3353 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,446 psi | 86% | 3258 fps | 98% |
| Bofors RP3 | <<locked>> | 82% | 52,243 psi | 86% | 3143 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 53,447 psi | 88% | 3278 fps | 98.3% |
| Bofors RP7 | <<locked>> | 86% | 51,779 psi | 85% | 3127 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 82% | 52,475 psi | 86% | 3159 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 53,766 psi | 88% | 3235 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 86% | 53,417 psi | 88% | 3196 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 96% | 54,360 psi | 89% | 3222 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,098 psi | 87% | 3199 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 52,953 psi | 87% | 3163 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,803 psi | 75% | 3222 fps | 97.4% |
| Hodgdon Superformance | <<locked>> | 88% | 54,244 psi | 89% | 3274 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,405 psi | 60% | 2041 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,577 psi | 88% | 3140 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 52,982 psi | 87% | 3163 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,519 psi | 88% | 3159 fps | 99.1% |
| IMR 4831 | <<locked>> | 90% | 52,243 psi | 86% | 3176 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,257 psi | 86% | 3146 fps | 96.2% |
| IMR 7828 SSC | <<locked>> | 98% | 51,851 psi | 85% | 3255 fps | 96.7% |
| Lovex S062 | <<locked>> | 82% | 53,606 psi | 88% | 3133 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,664 psi | 88% | 3156 fps | 99.7% |
| Lovex S070 | <<locked>> | 90% | 54,940 psi | 90% | 3199 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,413 psi | 78% | 3077 fps | 99% |
| Norma 203B | <<locked>> | 82% | 54,462 psi | 89% | 3192 fps | 100% |
| Norma 204 | <<locked>> | 90% | 53,737 psi | 88% | 3219 fps | 98% |
| Norma MRP | <<locked>> | 96% | 53,185 psi | 87% | 3307 fps | 99.2% |
| Norma URP | <<locked>> | 90% | 53,983 psi | 89% | 3222 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,185 psi | 86% | 3271 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 90% | 52,866 psi | 87% | 3222 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,241 psi | 82% | 3199 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,115 psi | 61% | 2087 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 52,576 psi | 86% | 3143 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,098 psi | 87% | 3258 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 51,561 psi | 85% | 3199 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,838 psi | 88% | 3294 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,093 psi | 76% | 3219 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 84% | 52,272 psi | 86% | 3140 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,389 psi | 89% | 3199 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 94% | 51,590 psi | 85% | 3199 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 86% | 51,779 psi | 85% | 3127 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,664 psi | 88% | 3156 fps | 99.7% |
| Shooters World Precision | <<locked>> | 82% | 53,606 psi | 88% | 3133 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,940 psi | 90% | 3199 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,070 psi | 89% | 3202 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,229 psi | 87% | 3018 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,127 psi | 87% | 3100 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,708 psi | 90% | 3258 fps | 98.4% |
| Somchem S355 | <<locked>> | 84% | 52,330 psi | 86% | 3136 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,620 psi | 86% | 3123 fps | 96% |
| Somchem S365 | <<locked>> | 92% | 53,693 psi | 88% | 3225 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,185 psi | 86% | 3173 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 86% | 53,766 psi | 88% | 3110 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 52,402 psi | 86% | 3159 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 51,648 psi | 85% | 3146 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 82% | 54,418 psi | 89% | 3110 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 51,663 psi | 85% | 3163 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 96% | 52,852 psi | 87% | 3232 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 53,330 psi | 88% | 3294 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,156 psi | 86% | 3120 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,969 psi | 89% | 3238 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,256 psi | 83% | 3337 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,112 psi | 86% | 3163 fps | 97.8% |
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% | 51,155 psi | 84% | 3074 fps | 98.3% |
| Accurate 3100 | <<locked>> | 86% | 35,012 psi | 57% | 2802 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 50,343 psi | 83% | 3068 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,653 psi | 63% | 2917 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 80% | 47,761 psi | 78% | 3045 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 43,134 psi | 71% | 3028 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 94% | 47,282 psi | 78% | 3146 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,341 psi | 79% | 3071 fps | 100% |
| Alliant Reloder-16 | 68.2 gr | 80% | 37,681 psi | 62% | 2933 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,076 psi | 71% | 3074 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,801 psi | 70% | 3022 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 92% | 43,424 psi | 71% | 3077 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,456 psi | 45% | 2648 fps | 96.2% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,475 psi | 55% | 2848 fps | 95.8% |
| Alliant Reloder-26 | 77.2 gr | 82% | 31,879 psi | 52% | 2844 fps | 96% |
| Bofors RP15 | <<locked>> | 94% | 42,815 psi | 70% | 3061 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 48,747 psi | 80% | 3081 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 43,424 psi | 71% | 3077 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 42,583 psi | 70% | 2940 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 80% | 48,979 psi | 80% | 3094 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 40,944 psi | 67% | 2976 fps | 96.7% |
| Hodgdon H4350 | <<locked>> | 80% | 43,772 psi | 72% | 3002 fps | 96.1% |
| Hodgdon H4831 | <<locked>> | 94% | 50,662 psi | 83% | 3156 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,676 psi | 82% | 3136 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,128 psi | 58% | 2812 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 96% | 40,045 psi | 66% | 3074 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 39,914 psi | 66% | 2982 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,137 psi | 45% | 1827 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,227 psi | 82% | 3084 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,261 psi | 63% | 2858 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,193 psi | 73% | 2979 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 37,260 psi | 61% | 2867 fps | 98.2% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,095 psi | 81% | 3087 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 96% | 48,269 psi | 79% | 3182 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 50,314 psi | 83% | 3077 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,524 psi | 68% | 2920 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 39,798 psi | 65% | 2894 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 33,881 psi | 56% | 2772 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 50,908 psi | 84% | 3133 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,598 psi | 72% | 3018 fps | 95.6% |
| Norma MRP | 78.5 gr | 86% | 36,898 psi | 61% | 2949 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 38,595 psi | 63% | 2917 fps | 98.4% |
| Ramshot Grand | <<locked>> | 94% | 44,860 psi | 74% | 3117 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 37,434 psi | 61% | 2897 fps | 96.5% |
| Ramshot Magnum | <<locked>> | 94% | 39,885 psi | 65% | 2976 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,688 psi | 45% | 1870 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,008 psi | 80% | 3077 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,803 psi | 75% | 3133 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,740 psi | 64% | 2940 fps | 98.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,536 psi | 62% | 2949 fps | 97.7% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,898 psi | 61% | 2979 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 45,818 psi | 75% | 3022 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,819 psi | 79% | 3074 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 88% | 41,858 psi | 69% | 3002 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 42,583 psi | 70% | 2940 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,524 psi | 68% | 2920 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 50,314 psi | 83% | 3077 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,798 psi | 65% | 2894 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,224 psi | 78% | 3081 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,920 psi | 77% | 2920 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,683 psi | 67% | 2858 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,481 psi | 68% | 2992 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 46,021 psi | 76% | 3022 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 49,066 psi | 81% | 3058 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 34,954 psi | 57% | 2864 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 39,740 psi | 65% | 2917 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 44,077 psi | 72% | 2943 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,958 psi | 66% | 2917 fps | 98.7% |
| Vihtavuori N165 | <<locked>> | 90% | 39,291 psi | 65% | 2897 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 50,981 psi | 84% | 3054 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,349 psi | 65% | 2913 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 30,472 psi | 50% | 2733 fps | 96.4% |
| Vihtavuori N560 | <<locked>> | 94% | 49,734 psi | 82% | 3225 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,305 psi | 65% | 2881 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 40,944 psi | 67% | 2976 fps | 96.7% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,918 psi | 43% | 2677 fps | 96.2% |
| Winchester Supreme 780 | <<locked>> | 90% | 42,148 psi | 69% | 2966 fps | 95.3% |
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 87 powders for .300 Lapua Mag. loaded with the .308 | 150gr | Ferrobull Entox Sport. Alliant Reloder-26 delivers the highest muzzle velocity at 3,353 fps; across all powders the maximum-charge window runs from 2,041 fps to 3,353 fps. ADI AR 2217 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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, Norma MRP, Alliant Reloder-16 rank at the top here: for .300 Lapua Mag. with the .308 | 150gr | Ferrobull Entox Sport they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Bofors RP30 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.