Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 150gr | Fox Classic Hunter bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, ReloadSwiss RS 70 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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 53,722 psi | 88% | 3110 fps | 98.5% |
| Accurate 3100 | <<locked>> | 98% | 52,185 psi | 86% | 3153 fps | 99.5% |
| Accurate 4064 | <<locked>> | 82% | 52,707 psi | 87% | 3097 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 53,983 psi | 89% | 3212 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 53,505 psi | 88% | 3307 fps | 97.2% |
| Accurate MAGPRO | <<locked>> | 98% | 54,694 psi | 90% | 3307 fps | 96% |
| ADI AR 2208 | <<locked>> | 84% | 53,171 psi | 87% | 3136 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 51,750 psi | 85% | 3199 fps | 97.6% |
| ADI AR 2213 | <<locked>> | 98% | 53,069 psi | 87% | 3251 fps | 96.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 51,808 psi | 85% | 3192 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,027 psi | 89% | 3159 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,027 psi | 89% | 3182 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,114 psi | 90% | 3281 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 52,576 psi | 86% | 3241 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,810 psi | 90% | 3251 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 52,199 psi | 86% | 3245 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,692 psi | 87% | 3232 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,643 psi | 75% | 3153 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,823 psi | 87% | 3320 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,184 psi | 84% | 3225 fps | 97.6% |
| Bofors RP3 | <<locked>> | 84% | 54,636 psi | 90% | 3173 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 52,199 psi | 86% | 3245 fps | 97.9% |
| Bofors RP7 | <<locked>> | 88% | 54,259 psi | 89% | 3159 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 84% | 55,114 psi | 90% | 3196 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 52,779 psi | 87% | 3209 fps | 99% |
| Hodgdon H4350 | <<locked>> | 86% | 52,475 psi | 86% | 3166 fps | 98% |
| Hodgdon H4831 | <<locked>> | 96% | 53,156 psi | 87% | 3192 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 51,677 psi | 85% | 3136 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,773 psi | 74% | 3186 fps | 96.9% |
| Hodgdon Superformance | <<locked>> | 88% | 52,939 psi | 87% | 3241 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,245 psi | 60% | 2028 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 52,634 psi | 86% | 3117 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,042 psi | 90% | 3153 fps | 99.2% |
| IMR 4350 | <<locked>> | 90% | 52,098 psi | 86% | 3136 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 52,591 psi | 86% | 3133 fps | 98.8% |
| IMR 4831 | <<locked>> | 92% | 54,549 psi | 90% | 3205 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,708 psi | 90% | 3182 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,259 psi | 89% | 3287 fps | 97.1% |
| Lovex S062 | <<locked>> | 82% | 52,692 psi | 87% | 3110 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 52,518 psi | 86% | 3127 fps | 99.6% |
| Lovex S070 | <<locked>> | 90% | 53,983 psi | 89% | 3173 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,108 psi | 76% | 3045 fps | 98.7% |
| Norma 203B | <<locked>> | 82% | 53,330 psi | 88% | 3166 fps | 100% |
| Norma 204 | <<locked>> | 90% | 52,620 psi | 86% | 3189 fps | 97.6% |
| Norma MRP | <<locked>> | 96% | 51,663 psi | 85% | 3268 fps | 98.9% |
| Norma URP | <<locked>> | 90% | 52,953 psi | 87% | 3199 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,302 psi | 89% | 3192 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,810 psi | 90% | 3307 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 90% | 51,735 psi | 85% | 3192 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,994 psi | 80% | 3163 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,956 psi | 61% | 2073 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 51,634 psi | 85% | 3117 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 51,967 psi | 85% | 3232 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,114 psi | 89% | 3238 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 52,562 psi | 86% | 3264 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,846 psi | 74% | 3179 fps | 98% |
| Rottweil R 902 | <<locked>> | 82% | 54,520 psi | 90% | 3123 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,911 psi | 90% | 3173 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,359 psi | 88% | 3169 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 96% | 53,824 psi | 88% | 3228 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 54,259 psi | 89% | 3159 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 52,518 psi | 86% | 3127 fps | 99.6% |
| Shooters World Precision | <<locked>> | 82% | 52,692 psi | 87% | 3110 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 53,983 psi | 89% | 3173 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,055 psi | 87% | 3179 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,359 psi | 86% | 2999 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 52,025 psi | 85% | 3071 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,359 psi | 88% | 3225 fps | 98.1% |
| Somchem S355 | <<locked>> | 86% | 54,911 psi | 90% | 3169 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 52,373 psi | 86% | 3202 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,592 psi | 90% | 3205 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 82% | 54,969 psi | 90% | 3077 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 52,750 psi | 87% | 3087 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,926 psi | 90% | 3192 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,998 psi | 89% | 3176 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 82% | 53,650 psi | 88% | 3091 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,128 psi | 89% | 3196 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,013 psi | 90% | 3261 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 51,909 psi | 85% | 3255 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,810 psi | 90% | 3153 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 52,779 psi | 87% | 3209 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,486 psi | 80% | 3304 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,839 psi | 90% | 3199 fps | 98.1% |
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 2700 | <<locked>> | 80% | 50,212 psi | 82% | 3048 fps | 98% |
| Accurate 3100 | <<locked>> | 86% | 34,156 psi | 56% | 2772 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 49,356 psi | 81% | 3041 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,782 psi | 62% | 2890 fps | 98.2% |
| Accurate High Country | <<locked>> | 92% | 46,456 psi | 76% | 3166 fps | 95.4% |
| Accurate MAGPRO | <<locked>> | 96% | 50,865 psi | 84% | 3235 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 46,891 psi | 77% | 3022 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 88% | 42,308 psi | 69% | 3002 fps | 95% |
| ADI AR 2213 | <<locked>> | 96% | 49,574 psi | 81% | 3182 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 42,438 psi | 70% | 2999 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,413 psi | 78% | 3045 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,662 psi | 83% | 3123 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,883 psi | 61% | 2907 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,206 psi | 69% | 3048 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,959 psi | 69% | 2992 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,380 psi | 70% | 3045 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,818 psi | 44% | 2618 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,822 psi | 54% | 2822 fps | 95.2% |
| Alliant Reloder-26 | 75.7 gr | 82% | 30,966 psi | 51% | 2808 fps | 95.2% |
| Bofors RP15 | <<locked>> | 94% | 41,785 psi | 69% | 3028 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 47,805 psi | 78% | 3058 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,380 psi | 70% | 3045 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 41,800 psi | 69% | 2913 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 48,153 psi | 79% | 3071 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 39,958 psi | 66% | 2946 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 43,004 psi | 71% | 2976 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 94% | 49,458 psi | 81% | 3120 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,418 psi | 56% | 2785 fps | 98.8% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,742 psi | 69% | 3110 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 39,117 psi | 64% | 2953 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,137 psi | 45% | 1818 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,313 psi | 81% | 3058 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,692 psi | 85% | 3094 fps | 98.8% |
| IMR 4350 | <<locked>> | 82% | 40,074 psi | 66% | 2890 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,424 psi | 71% | 2953 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 36,448 psi | 60% | 2838 fps | 97.9% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,329 psi | 84% | 3120 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 96% | 47,166 psi | 77% | 3146 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 49,371 psi | 81% | 3051 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,727 psi | 67% | 2890 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 39,030 psi | 64% | 2867 fps | 96.2% |
| Lovex S071 | <<locked>> | 92% | 35,302 psi | 58% | 2802 fps | 95.8% |
| Norma 203B | <<locked>> | 80% | 49,980 psi | 82% | 3107 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,714 psi | 70% | 2989 fps | 95.1% |
| Norma MRP | 78.9 gr | 88% | 38,783 psi | 64% | 2992 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 37,753 psi | 62% | 2887 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 50,705 psi | 83% | 3133 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 47,108 psi | 77% | 3156 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 36,709 psi | 60% | 2871 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 94% | 38,914 psi | 64% | 2943 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,543 psi | 45% | 1857 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,254 psi | 79% | 3051 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,933 psi | 74% | 3107 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,753 psi | 62% | 2907 fps | 97.9% |
| ReloadSwiss RS 70 | 73.2 gr | 80% | 36,709 psi | 60% | 2917 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,711 psi | 64% | 3022 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 51,097 psi | 84% | 3068 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,889 psi | 74% | 2995 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,789 psi | 77% | 3041 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 90% | 43,859 psi | 72% | 3035 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 41,800 psi | 69% | 2913 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,727 psi | 67% | 2890 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 49,371 psi | 81% | 3051 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,030 psi | 64% | 2867 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,369 psi | 76% | 3061 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,195 psi | 76% | 2900 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,972 psi | 66% | 2831 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,468 psi | 71% | 3028 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 45,121 psi | 74% | 2995 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 34,084 psi | 56% | 2835 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 38,870 psi | 64% | 2890 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 51,619 psi | 85% | 3028 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,221 psi | 71% | 2920 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,117 psi | 64% | 2887 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 92% | 41,031 psi | 67% | 2927 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 50,154 psi | 82% | 3035 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,580 psi | 63% | 2887 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 29,689 psi | 49% | 2703 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 94% | 48,356 psi | 79% | 3186 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,334 psi | 63% | 2854 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 40,132 psi | 66% | 2949 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,280 psi | 42% | 2638 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,121 psi | 72% | 2999 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 83 powders for .300 Lapua Mag. loaded with the .308 | 150gr | Fox Classic Hunter. Alliant Reloder-26 delivers the highest muzzle velocity at 3,320 fps; across all powders the maximum-charge window runs from 2,028 fps to 3,320 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 83 of the 83 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 150.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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, ReloadSwiss RS 70, Alliant Reloder-26 rank at the top here: for .300 Lapua Mag. with the .308 | 150gr | Fox Classic Hunter 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.