Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 150gr | Hasler Hunting bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 and Hodgdon H414.
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% | 54,143 psi | 89% | 3123 fps | 98.6% |
| Accurate 3100 | <<locked>> | 98% | 52,765 psi | 87% | 3166 fps | 99.6% |
| Accurate 4064 | <<locked>> | 82% | 53,229 psi | 87% | 3107 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,404 psi | 89% | 3222 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 53,621 psi | 88% | 3146 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 52,286 psi | 86% | 3212 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 98% | 53,577 psi | 88% | 3264 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,505 psi | 89% | 3173 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,505 psi | 89% | 3192 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 51,996 psi | 85% | 3232 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,026 psi | 87% | 3251 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 51,692 psi | 85% | 3199 fps | 97.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 52,750 psi | 87% | 3261 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,316 psi | 88% | 3245 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,122 psi | 76% | 3163 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,664 psi | 88% | 3333 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,735 psi | 85% | 3238 fps | 97.8% |
| Bofors RP3 | <<locked>> | 84% | 55,100 psi | 90% | 3186 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 52,750 psi | 87% | 3261 fps | 98.1% |
| Bofors RP7 | <<locked>> | 88% | 54,650 psi | 90% | 3169 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 82% | 52,054 psi | 85% | 3143 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 53,200 psi | 87% | 3219 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 86% | 52,866 psi | 87% | 3176 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 96% | 53,693 psi | 88% | 3205 fps | 96.2% |
| Hodgdon H4831 SC | <<locked>> | 96% | 52,431 psi | 86% | 3182 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 52,315 psi | 86% | 3150 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,237 psi | 74% | 3202 fps | 97.1% |
| Hodgdon Superformance | <<locked>> | 88% | 53,534 psi | 88% | 3255 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,376 psi | 60% | 2034 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 52,924 psi | 87% | 3127 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 52,460 psi | 86% | 3146 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 52,982 psi | 87% | 3143 fps | 98.9% |
| IMR 4831 | <<locked>> | 90% | 51,488 psi | 85% | 3156 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,822 psi | 85% | 3133 fps | 96% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,781 psi | 90% | 3301 fps | 97.2% |
| Lovex S062 | <<locked>> | 82% | 53,171 psi | 87% | 3120 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,113 psi | 87% | 3143 fps | 99.7% |
| Lovex S070 | <<locked>> | 90% | 54,389 psi | 89% | 3182 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,702 psi | 77% | 3058 fps | 98.8% |
| Norma 203B | <<locked>> | 82% | 53,809 psi | 88% | 3176 fps | 100% |
| Norma 204 | <<locked>> | 90% | 53,229 psi | 87% | 3202 fps | 97.8% |
| Norma MRP | <<locked>> | 96% | 52,446 psi | 86% | 3287 fps | 99.1% |
| Norma URP | <<locked>> | 90% | 53,359 psi | 88% | 3209 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,723 psi | 90% | 3202 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 51,314 psi | 84% | 3245 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 90% | 52,330 psi | 86% | 3205 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,458 psi | 81% | 3176 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,912 psi | 61% | 2077 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 52,025 psi | 85% | 3127 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 52,460 psi | 86% | 3241 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,737 psi | 90% | 3248 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,156 psi | 87% | 3278 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,411 psi | 75% | 3196 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 82% | 54,998 psi | 90% | 3133 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 51,866 psi | 85% | 3127 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,911 psi | 89% | 3182 fps | 97% |
| Rottweil R 905 | <<locked>> | 96% | 54,433 psi | 89% | 3241 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 54,650 psi | 90% | 3169 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,113 psi | 87% | 3143 fps | 99.7% |
| Shooters World Precision | <<locked>> | 82% | 53,171 psi | 87% | 3120 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,389 psi | 89% | 3182 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,476 psi | 88% | 3189 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,823 psi | 87% | 3009 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 52,605 psi | 86% | 3084 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,969 psi | 89% | 3238 fps | 98.2% |
| Somchem S355 | <<locked>> | 84% | 51,880 psi | 85% | 3123 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 52,823 psi | 87% | 3209 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,940 psi | 90% | 3215 fps | 99% |
| Vihtavuori N150 | <<locked>> | 86% | 53,171 psi | 87% | 3097 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 51,837 psi | 85% | 3143 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,520 psi | 90% | 3189 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 82% | 54,070 psi | 89% | 3097 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,505 psi | 89% | 3205 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 52,040 psi | 85% | 3212 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 52,663 psi | 86% | 3274 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 51,517 psi | 85% | 3104 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,403 psi | 88% | 3222 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,124 psi | 81% | 3314 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 51,459 psi | 84% | 3146 fps | 97.6% |
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% | 50,589 psi | 83% | 3058 fps | 98.1% |
| Accurate 3100 | <<locked>> | 86% | 34,505 psi | 57% | 2785 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 49,850 psi | 82% | 3054 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,232 psi | 63% | 2900 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 47,152 psi | 77% | 3028 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 42,641 psi | 70% | 3012 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 96% | 49,893 psi | 82% | 3192 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,877 psi | 79% | 3058 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,111 psi | 84% | 3133 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,304 psi | 61% | 2917 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,641 psi | 70% | 3058 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,322 psi | 69% | 3005 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,757 psi | 70% | 3058 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,122 psi | 45% | 2631 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,098 psi | 54% | 2831 fps | 95.5% |
| Alliant Reloder-26 | 76.3 gr | 82% | 31,314 psi | 51% | 2818 fps | 95.5% |
| Bofors RP15 | <<locked>> | 94% | 42,134 psi | 69% | 3041 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 48,080 psi | 79% | 3064 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,757 psi | 70% | 3058 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 42,192 psi | 69% | 2923 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 80% | 48,559 psi | 80% | 3081 fps | 99.6% |
| Hodgdon H414 | 71.1 gr | 80% | 40,379 psi | 66% | 2959 fps | 96.4% |
| Hodgdon H4350 | <<locked>> | 80% | 43,236 psi | 71% | 2982 fps | 95.9% |
| Hodgdon H4831 | <<locked>> | 94% | 49,995 psi | 82% | 3136 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,008 psi | 80% | 3117 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,708 psi | 57% | 2795 fps | 98.9% |
| Hodgdon Retumbo | <<locked>> | 98% | 42,192 psi | 69% | 3123 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 39,436 psi | 65% | 2963 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,021 psi | 44% | 1818 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,603 psi | 81% | 3068 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 40,437 psi | 66% | 2904 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,801 psi | 72% | 2963 fps | 97.2% |
| IMR 4831 | <<locked>> | 80% | 36,680 psi | 60% | 2848 fps | 98% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,457 psi | 80% | 3068 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 96% | 47,630 psi | 78% | 3159 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 49,835 psi | 82% | 3064 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,118 psi | 68% | 2904 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 39,276 psi | 64% | 2877 fps | 96.3% |
| Lovex S071 | <<locked>> | 90% | 33,373 psi | 55% | 2756 fps | 95% |
| Norma 203B | <<locked>> | 80% | 50,473 psi | 83% | 3117 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,076 psi | 71% | 2999 fps | 95.3% |
| Norma MRP | 79.5 gr | 88% | 39,117 psi | 64% | 3002 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 38,029 psi | 62% | 2897 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 51,140 psi | 84% | 3143 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 47,659 psi | 78% | 3169 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 36,941 psi | 61% | 2881 fps | 96.2% |
| Ramshot Magnum | <<locked>> | 94% | 39,334 psi | 65% | 2956 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,586 psi | 45% | 1864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,660 psi | 80% | 3064 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,382 psi | 75% | 3120 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,159 psi | 63% | 2920 fps | 98% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,043 psi | 61% | 2930 fps | 97.4% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 39,233 psi | 64% | 3038 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 51,561 psi | 85% | 3077 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,194 psi | 74% | 3005 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,137 psi | 77% | 3051 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 41,336 psi | 68% | 2982 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,192 psi | 69% | 2923 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,118 psi | 68% | 2904 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 49,835 psi | 82% | 3064 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,276 psi | 64% | 2877 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,630 psi | 77% | 3068 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,485 psi | 76% | 2907 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,205 psi | 66% | 2838 fps | 96.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,959 psi | 67% | 2976 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 45,585 psi | 75% | 3009 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 34,505 psi | 57% | 2848 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 39,247 psi | 64% | 2900 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 43,482 psi | 71% | 2927 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,552 psi | 65% | 2900 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 92% | 41,524 psi | 68% | 2940 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 50,546 psi | 83% | 3041 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,986 psi | 64% | 2897 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 80% | 29,936 psi | 49% | 2713 fps | 96% |
| Vihtavuori N560 | <<locked>> | 94% | 48,878 psi | 80% | 3199 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,841 psi | 64% | 2864 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 40,538 psi | 67% | 2959 fps | 96.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,541 psi | 42% | 2654 fps | 95.6% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,495 psi | 68% | 2946 fps | 95% |
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 | Hasler Hunting. Alliant Reloder-26 delivers the highest muzzle velocity at 3,333 fps; across all powders the maximum-charge window runs from 2,034 fps to 3,333 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 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. 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. Norma MRP, Alliant Reloder-26, Hodgdon H414 rank at the top here: for .300 Lapua Mag. with the .308 | 150gr | Hasler Hunting 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.