Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 115gr | Sierra VarmintKing bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 57,566 psi | 90% | 3369 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,420 psi | 88% | 3392 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 55,970 psi | 88% | 3383 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,578 psi | 86% | 3399 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 55,869 psi | 88% | 3425 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,967 psi | 81% | 3415 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 82% | 56,333 psi | 88% | 3310 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 56,724 psi | 89% | 3340 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 56,884 psi | 89% | 3461 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 94% | 54,360 psi | 85% | 3392 fps | 98.2% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,927 psi | 88% | 3415 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 88% | 56,333 psi | 88% | 3406 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 57,508 psi | 90% | 3543 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 56,768 psi | 89% | 3583 fps | 98.6% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 57,580 psi | 90% | 3478 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 57,624 psi | 90% | 3478 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 84% | 57,014 psi | 89% | 3383 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 54,795 psi | 86% | 3442 fps | 98.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,488 psi | 79% | 3422 fps | 97.3% |
| Alliant Reloder-17 | <<locked>> | 98% | 55,158 psi | 86% | 3540 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,072 psi | 88% | 3294 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 57,174 psi | 90% | 3471 fps | 98.4% |
| Bofors RP3 | <<locked>> | 94% | 54,810 psi | 86% | 3432 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,346 psi | 85% | 3343 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,332 psi | 87% | 3438 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 86% | 57,217 psi | 90% | 3547 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 84% | 56,434 psi | 88% | 3422 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,099 psi | 85% | 3383 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 56,246 psi | 88% | 3445 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 90% | 57,406 psi | 90% | 3478 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,572 psi | 73% | 3284 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,855 psi | 89% | 3504 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,809 psi | 55% | 2165 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,317 psi | 87% | 3419 fps | 99.2% |
| IMR 3031 | <<locked>> | 90% | 56,855 psi | 89% | 3471 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,290 psi | 90% | 3438 fps | 98.8% |
| IMR 4198 | <<locked>> | 84% | 57,029 psi | 89% | 3346 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,226 psi | 77% | 3343 fps | 96.8% |
| IMR 4895 | <<locked>> | 92% | 56,188 psi | 88% | 3481 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 88% | 55,927 psi | 88% | 3415 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 84% | 56,376 psi | 88% | 3399 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 90% | 56,623 psi | 89% | 3438 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,637 psi | 89% | 3383 fps | 99.1% |
| Lovex S062 | <<locked>> | 94% | 57,000 psi | 89% | 3435 fps | 99.7% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,405 psi | 88% | 3412 fps | 96.8% |
| Norma 201 | <<locked>> | 90% | 55,434 psi | 87% | 3402 fps | 99.6% |
| Norma 202 | <<locked>> | 90% | 55,970 psi | 88% | 3412 fps | 100% |
| Norma 203B | <<locked>> | 94% | 57,551 psi | 90% | 3488 fps | 99.2% |
| Norma URPᴾ | <<locked>> | 100% | 51,300 psi | 80% | 3406 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 92% | 54,665 psi | 86% | 3448 fps | 98.7% |
| Ramshot TAC | <<locked>> | 88% | 56,811 psi | 89% | 3419 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,985 psi | 88% | 3442 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 86% | 57,406 psi | 90% | 3412 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,172 psi | 55% | 2215 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,332 psi | 87% | 3399 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 56,753 psi | 89% | 3419 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,013 psi | 86% | 3514 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,071 psi | 86% | 3553 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,779 psi | 81% | 3435 fps | 97% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,286 psi | 82% | 3458 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 88% | 56,333 psi | 88% | 3396 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 55,898 psi | 88% | 3399 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 96% | 54,389 psi | 85% | 3419 fps | 99.2% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,405 psi | 88% | 3412 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 56,623 psi | 89% | 3438 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 57,000 psi | 89% | 3435 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,158 psi | 86% | 3356 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 56,666 psi | 89% | 3491 fps | 99% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,592 psi | 86% | 3356 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,911 psi | 86% | 3386 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,390 psi | 87% | 3422 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 57,246 psi | 90% | 3350 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 57,435 psi | 90% | 3340 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 57,580 psi | 90% | 3451 fps | 99.8% |
| Somchem S335 | <<locked>> | 90% | 56,463 psi | 88% | 3343 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,346 psi | 85% | 3383 fps | 98.7% |
| Somchem S355 | <<locked>> | 96% | 55,027 psi | 86% | 3422 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,818 psi | 72% | 3340 fps | 99% |
| Vihtavuori N130 | <<locked>> | 86% | 56,898 psi | 89% | 3320 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,246 psi | 90% | 3337 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,376 psi | 87% | 3376 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 56,768 psi | 89% | 3389 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,681 psi | 89% | 3402 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,925 psi | 85% | 3409 fps | 97.5% |
| Vihtavuori N530 | <<locked>> | 88% | 56,579 psi | 89% | 3415 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 92% | 54,940 psi | 86% | 3376 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,287 psi | 84% | 3412 fps | 97.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,143 psi | 86% | 3392 fps | 99.4% |
| Winchester 748 | <<locked>> | 88% | 56,347 psi | 88% | 3468 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,332 psi | 87% | 3432 fps | 99.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 44,773 psi | 70% | 3150 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,124 psi | 77% | 3264 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 37,449 psi | 59% | 3028 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 44,309 psi | 69% | 3202 fps | 99.2% |
| Accurate 4064 | <<locked>> | 80% | 35,389 psi | 55% | 3002 fps | 98.2% |
| Accurate 4350 | <<locked>> | 96% | 45,005 psi | 71% | 3278 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 53,040 psi | 83% | 3258 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,432 psi | 84% | 3281 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,234 psi | 65% | 3136 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 86% | 42,395 psi | 66% | 3143 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,294 psi | 68% | 3159 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 80% | 42,699 psi | 67% | 3176 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,314 psi | 79% | 3406 fps | 98.5% |
| Alliant Power Pro 2000-MR | 67.2 gr | 84% | 42,931 psi | 67% | 3278 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,713 psi | 65% | 3156 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 36,753 psi | 58% | 3038 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,401 psi | 79% | 3274 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,264 psi | 66% | 3176 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 44,382 psi | 70% | 3284 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 88% | 39,030 psi | 61% | 3176 fps | 95.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,605 psi | 82% | 3238 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 43,366 psi | 68% | 3196 fps | 95.3% |
| Bofors RP3 | <<locked>> | 82% | 36,376 psi | 57% | 3035 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,194 psi | 71% | 3163 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,930 psi | 66% | 3173 fps | 98% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,035 psi | 72% | 3327 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 80% | 49,342 psi | 77% | 3301 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,502 psi | 79% | 3320 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 45,701 psi | 72% | 3235 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 41,582 psi | 65% | 3153 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 38,247 psi | 60% | 3087 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,579 psi | 59% | 3097 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,933 psi | 41% | 1942 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,943 psi | 63% | 3097 fps | 96% |
| IMR 3031 | <<locked>> | 80% | 40,785 psi | 64% | 3169 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 41,887 psi | 66% | 3127 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 50,575 psi | 79% | 3241 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 43,178 psi | 68% | 3212 fps | 95.1% |
| IMR 4895 | <<locked>> | 82% | 40,538 psi | 64% | 3153 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 43,294 psi | 68% | 3159 fps | 97.7% |
| Lovex D073.5 | <<locked>> | 80% | 49,037 psi | 77% | 3268 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 39,987 psi | 63% | 3114 fps | 98.4% |
| Lovex S060 | <<locked>> | 80% | 41,669 psi | 65% | 3081 fps | 96.1% |
| Lovex S062 | <<locked>> | 80% | 36,622 psi | 57% | 3005 fps | 95.9% |
| Lovex S065 | <<locked>> | 96% | 49,835 psi | 78% | 3287 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 40,408 psi | 63% | 3091 fps | 97.1% |
| Norma 202 | <<locked>> | 80% | 40,524 psi | 64% | 3110 fps | 99% |
| Norma 203B | <<locked>> | 82% | 38,943 psi | 61% | 3097 fps | 95.1% |
| Norma URP | <<locked>> | 96% | 44,846 psi | 70% | 3271 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 84% | 41,321 psi | 65% | 3173 fps | 95.7% |
| Ramshot TAC | <<locked>> | 84% | 49,559 psi | 78% | 3281 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,641 psi | 67% | 3169 fps | 96.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,094 psi | 74% | 3219 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,020 psi | 41% | 1985 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,660 psi | 76% | 3274 fps | 99.5% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 52,982 psi | 83% | 3350 fps | 95.2% |
| ReloadSwiss RS 52 | 63.6 gr | 82% | 41,292 psi | 65% | 3225 fps | 95.1% |
| ReloadSwiss RS 60 | 64.6 gr | 82% | 33,939 psi | 53% | 3045 fps | 96% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 44,976 psi | 70% | 3294 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 48,747 psi | 76% | 3379 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 44,208 psi | 69% | 3166 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 38,363 psi | 60% | 3031 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 84% | 36,419 psi | 57% | 3028 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 49,835 psi | 78% | 3287 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,987 psi | 63% | 3114 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 36,622 psi | 57% | 3005 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,474 psi | 81% | 3294 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 40,292 psi | 63% | 3153 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,053 psi | 80% | 3297 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 47,776 psi | 75% | 3251 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,914 psi | 63% | 3094 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,785 psi | 65% | 3061 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,519 psi | 54% | 2890 fps | 98.6% |
| Somchem S321 | <<locked>> | 80% | 46,949 psi | 74% | 3255 fps | 98.7% |
| Somchem S335 | <<locked>> | 80% | 41,510 psi | 65% | 3064 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 41,249 psi | 65% | 3114 fps | 95.8% |
| Somchem S355 | <<locked>> | 84% | 37,333 psi | 59% | 3041 fps | 95.2% |
| Somchem S365 | <<locked>> | 92% | 35,027 psi | 55% | 3068 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 47,268 psi | 74% | 3159 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,974 psi | 66% | 3068 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,449 psi | 59% | 3031 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 38,290 psi | 60% | 3028 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 82% | 33,301 psi | 52% | 2904 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 94% | 44,092 psi | 69% | 3212 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 43,395 psi | 68% | 3159 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 80% | 37,043 psi | 58% | 3009 fps | 98.2% |
| Vihtavuori N550 | <<locked>> | 96% | 46,543 psi | 73% | 3278 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 39,262 psi | 62% | 3061 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 42,656 psi | 67% | 3199 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,233 psi | 61% | 3094 fps | 95.9% |
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 108 powders for .308 Norma Mag. loaded with the .308 | 115gr | Sierra VarmintKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,583 fps; across all powders the maximum-charge window runs from 2,165 fps to 3,583 fps. Accurate 4350 gives the best case fill at 100 %, and 108 of the 108 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 115.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .308 Norma Mag. with the .308 | 115gr | Sierra VarmintKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Alliant Reloder-26 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.