Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 123gr | Sako Gamehead bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 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.
A valid access license is required to use the Personalized Load Calculator.
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 2495 | <<locked>> | 84% | 53,954 psi | 89% | 3343 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 52,112 psi | 86% | 3323 fps | 96.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,008 psi | 80% | 3340 fps | 97.6% |
| Accurate 4064 | <<locked>> | 86% | 54,244 psi | 89% | 3402 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,810 psi | 90% | 3491 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 53,461 psi | 88% | 3425 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 88% | 54,795 psi | 90% | 3428 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,635 psi | 88% | 3560 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 51,895 psi | 85% | 3396 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 52,214 psi | 86% | 3419 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 94% | 52,098 psi | 86% | 3497 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,272 psi | 87% | 3533 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,151 psi | 76% | 3376 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,142 psi | 87% | 3589 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,432 psi | 88% | 3435 fps | 99.5% |
| Bofors RP3 | <<locked>> | 86% | 52,562 psi | 86% | 3412 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 52,344 psi | 86% | 3373 fps | 96.7% |
| Hodgdon H380 | <<locked>> | 86% | 53,127 psi | 87% | 3422 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 92% | 53,650 psi | 88% | 3481 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 90% | 53,650 psi | 88% | 3438 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 82% | 54,027 psi | 89% | 3438 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 52,344 psi | 86% | 3415 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,201 psi | 89% | 3474 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,128 psi | 89% | 3517 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,911 psi | 59% | 2221 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 51,822 psi | 85% | 3383 fps | 99.9% |
| IMR 3031 | <<locked>> | 82% | 54,317 psi | 89% | 3428 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,157 psi | 89% | 3412 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 84% | 53,708 psi | 88% | 3379 fps | 97.5% |
| IMR 4350 | <<locked>> | 94% | 53,185 psi | 87% | 3406 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,041 psi | 89% | 3409 fps | 97.5% |
| IMR 4831 | <<locked>> | 94% | 51,750 psi | 85% | 3419 fps | 99.3% |
| IMR 4895 | <<locked>> | 84% | 53,592 psi | 88% | 3455 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 82% | 53,708 psi | 88% | 3399 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 52,678 psi | 86% | 3346 fps | 99.8% |
| Lovex S062 | <<locked>> | 86% | 54,331 psi | 89% | 3409 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,070 psi | 89% | 3412 fps | 98.7% |
| Lovex S070 | <<locked>> | 92% | 51,706 psi | 85% | 3383 fps | 97.4% |
| Norma 201 | <<locked>> | 82% | 52,315 psi | 86% | 3369 fps | 100% |
| Norma 202 | <<locked>> | 82% | 52,968 psi | 87% | 3369 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,897 psi | 90% | 3465 fps | 99.9% |
| Norma MRPᴾ | <<locked>> | 100% | 52,040 psi | 85% | 3527 fps | 97.3% |
| Norma URP | <<locked>> | 94% | 53,737 psi | 88% | 3478 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 84% | 52,025 psi | 85% | 3422 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 94% | 52,562 psi | 86% | 3465 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,361 psi | 60% | 2267 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,287 psi | 87% | 3399 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 52,562 psi | 86% | 3488 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 52,823 psi | 87% | 3530 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,694 psi | 90% | 3510 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,751 psi | 88% | 3543 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 84% | 52,837 psi | 87% | 3366 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 52,591 psi | 86% | 3406 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,462 psi | 89% | 3494 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 90% | 52,344 psi | 86% | 3373 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,070 psi | 89% | 3412 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 53,708 psi | 88% | 3399 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,331 psi | 89% | 3409 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 51,706 psi | 85% | 3383 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,215 psi | 89% | 3468 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,781 psi | 90% | 3422 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 51,967 psi | 85% | 3386 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,142 psi | 87% | 3297 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,143 psi | 89% | 3297 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 53,998 psi | 89% | 3350 fps | 97.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,969 psi | 89% | 3484 fps | 96.2% |
| Somchem S335 | <<locked>> | 82% | 53,040 psi | 87% | 3294 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,375 psi | 89% | 3409 fps | 99.9% |
| Somchem S355 | <<locked>> | 88% | 52,794 psi | 87% | 3402 fps | 99.9% |
| Somchem S365 | <<locked>> | 96% | 52,359 psi | 86% | 3478 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 51,677 psi | 85% | 3396 fps | 96.6% |
| Vihtavuori N133 | <<locked>> | 82% | 53,534 psi | 88% | 3284 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 52,953 psi | 87% | 3333 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 53,577 psi | 88% | 3346 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,085 psi | 89% | 3376 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 52,301 psi | 86% | 3409 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 84% | 51,779 psi | 85% | 3330 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 51,532 psi | 85% | 3409 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,387 psi | 84% | 3468 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 52,417 psi | 86% | 3376 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 53,896 psi | 88% | 3488 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,684 psi | 68% | 3406 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 52,098 psi | 86% | 3396 fps | 99.9% |
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 2495 | <<locked>> | 80% | 47,239 psi | 78% | 3232 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 48,762 psi | 80% | 3258 fps | 95.6% |
| Accurate 3100 | <<locked>> | 94% | 39,682 psi | 65% | 3136 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 44,643 psi | 73% | 3225 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 35,824 psi | 59% | 3077 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 50,212 psi | 82% | 3366 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 42,511 psi | 70% | 3179 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,470 psi | 76% | 3412 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,627 psi | 70% | 3209 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,803 psi | 75% | 3287 fps | 98.8% |
| Alliant Reloder-16 | 69.4 gr | 82% | 35,375 psi | 58% | 3091 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,362 psi | 61% | 3176 fps | 98% |
| Alliant Reloder-23 | <<locked>> | 88% | 31,241 psi | 51% | 2976 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 36,521 psi | 60% | 3192 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,024 psi | 82% | 3366 fps | 99.1% |
| Bofors RP3 | <<locked>> | 80% | 42,786 psi | 70% | 3215 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 46,108 psi | 76% | 3245 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 43,410 psi | 71% | 3219 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 86% | 43,685 psi | 72% | 3271 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 88% | 50,357 psi | 83% | 3373 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 50,749 psi | 83% | 3376 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,545 psi | 50% | 2904 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,239 psi | 78% | 3343 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 46,601 psi | 77% | 3360 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,687 psi | 44% | 1991 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,588 psi | 80% | 3320 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 50,763 psi | 83% | 3366 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,643 psi | 73% | 3222 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,210 psi | 78% | 3248 fps | 96% |
| IMR 4350 | <<locked>> | 90% | 46,731 psi | 77% | 3274 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 44,860 psi | 74% | 3222 fps | 95.3% |
| IMR 4831 | <<locked>> | 82% | 34,664 psi | 57% | 3025 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 46,963 psi | 77% | 3327 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 50,125 psi | 82% | 3337 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,458 psi | 81% | 3284 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 44,846 psi | 74% | 3225 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 39,450 psi | 65% | 3094 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 42,801 psi | 70% | 3192 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 49,110 psi | 81% | 3304 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 49,487 psi | 81% | 3307 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,165 psi | 74% | 3274 fps | 99.1% |
| Norma MRP | <<locked>> | 96% | 45,179 psi | 74% | 3379 fps | 95.5% |
| Norma URP | <<locked>> | 82% | 35,781 psi | 59% | 3074 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 45,252 psi | 74% | 3287 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 42,830 psi | 70% | 3258 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,166 psi | 45% | 2041 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,685 psi | 72% | 3199 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,921 psi | 80% | 3419 fps | 99.2% |
| ReloadSwiss RS 60 | 72.9 gr | 80% | 39,769 psi | 65% | 3255 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 38,276 psi | 63% | 3163 fps | 96% |
| ReloadSwiss RS 70 | 77.7 gr | 84% | 37,724 psi | 62% | 3166 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 46,702 psi | 77% | 3248 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 40,176 psi | 66% | 3146 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 98% | 50,952 psi | 84% | 3425 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 86% | 46,108 psi | 76% | 3245 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 82% | 39,450 psi | 65% | 3094 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,125 psi | 82% | 3337 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,846 psi | 74% | 3225 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 42,801 psi | 70% | 3192 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,292 psi | 68% | 3205 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,068 psi | 84% | 3353 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,631 psi | 80% | 3320 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,980 psi | 82% | 3245 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,974 psi | 69% | 3081 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 44,324 psi | 73% | 3156 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 50,488 psi | 83% | 3415 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 49,821 psi | 82% | 3241 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,894 psi | 84% | 3346 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 40,814 psi | 67% | 3156 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 30,066 psi | 49% | 2949 fps | 96.6% |
| Somchem S385 | <<locked>> | 96% | 48,356 psi | 79% | 3333 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 50,401 psi | 83% | 3232 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,528 psi | 76% | 3222 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,949 psi | 77% | 3228 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,870 psi | 64% | 3074 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 37,318 psi | 61% | 3077 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 45,542 psi | 75% | 3215 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 36,956 psi | 61% | 3081 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 34,185 psi | 56% | 3068 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,577 psi | 57% | 2982 fps | 97.3% |
| Winchester 760 | <<locked>> | 86% | 43,845 psi | 72% | 3278 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,617 psi | 49% | 2999 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,689 psi | 80% | 3330 fps | 99.8% |
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 | 123gr | Sako Gamehead. Alliant Reloder-26 delivers the highest muzzle velocity at 3,589 fps; across all powders the maximum-charge window runs from 2,221 fps to 3,589 fps. Accurate 3100 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 59–90 %, leaving at least 10 % headroom. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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. ReloadSwiss RS 70, ReloadSwiss RS 60, Alliant Reloder-16 rank at the top here: for .300 Lapua Mag. with the .308 | 123gr | Sako Gamehead 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.