Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 125gr | Nosler AccuBond bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, 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.
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 2495 | <<locked>> | 84% | 57,522 psi | 90% | 3340 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,288 psi | 87% | 3330 fps | 97.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,505 psi | 84% | 3360 fps | 98.4% |
| Accurate 4064 | <<locked>> | 84% | 54,317 psi | 85% | 3340 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,259 psi | 87% | 3432 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 56,608 psi | 89% | 3425 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 54,534 psi | 85% | 3369 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 98% | 56,637 psi | 89% | 3474 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 57,653 psi | 90% | 3566 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,201 psi | 87% | 3396 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,521 psi | 87% | 3419 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 55,927 psi | 88% | 3501 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 57,508 psi | 90% | 3533 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,912 psi | 88% | 3458 fps | 96.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,214 psi | 83% | 3448 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,111 psi | 79% | 3386 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,700 psi | 68% | 3268 fps | 97% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,012 psi | 85% | 3530 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 57,043 psi | 89% | 3438 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 56,289 psi | 88% | 3412 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,214 psi | 83% | 3448 fps | 96.1% |
| Bofors RP7 | <<locked>> | 90% | 55,724 psi | 87% | 3379 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 86% | 56,666 psi | 89% | 3422 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 92% | 57,566 psi | 90% | 3491 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 90% | 57,217 psi | 90% | 3448 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 82% | 57,290 psi | 90% | 3438 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 56,260 psi | 88% | 3419 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,128 psi | 85% | 3409 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,331 psi | 85% | 3455 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,129 psi | 57% | 2205 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,882 psi | 86% | 3376 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 57,421 psi | 90% | 3409 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 56,623 psi | 89% | 3383 fps | 98.1% |
| IMR 4350 | <<locked>> | 94% | 56,739 psi | 89% | 3412 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 57,348 psi | 90% | 3415 fps | 98.1% |
| IMR 4831 | <<locked>> | 94% | 55,796 psi | 87% | 3425 fps | 99.7% |
| IMR 4895 | <<locked>> | 84% | 56,971 psi | 89% | 3455 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 57,261 psi | 90% | 3396 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 55,463 psi | 87% | 3340 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 57,667 psi | 90% | 3406 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 57,435 psi | 90% | 3412 fps | 99.1% |
| Lovex S070 | <<locked>> | 92% | 55,274 psi | 87% | 3389 fps | 98% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,193 psi | 69% | 3176 fps | 96.3% |
| Norma 201 | <<locked>> | 82% | 55,390 psi | 87% | 3363 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,057 psi | 88% | 3363 fps | 100% |
| Norma 203B | <<locked>> | 84% | 54,824 psi | 86% | 3402 fps | 99.9% |
| Norma MRPᴾ | <<locked>> | 100% | 56,782 psi | 89% | 3550 fps | 98.2% |
| Norma URP | <<locked>> | 94% | 57,595 psi | 90% | 3481 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 84% | 55,709 psi | 87% | 3425 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 94% | 56,666 psi | 89% | 3474 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,753 psi | 58% | 2257 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 56,666 psi | 89% | 3402 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 56,463 psi | 88% | 3494 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 56,927 psi | 89% | 3533 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,390 psi | 87% | 3455 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,041 psi | 85% | 3484 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 84% | 56,057 psi | 88% | 3363 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 56,333 psi | 88% | 3406 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 55,100 psi | 86% | 3442 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 90% | 55,724 psi | 87% | 3379 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 57,435 psi | 90% | 3412 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 82% | 57,261 psi | 90% | 3396 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 57,667 psi | 90% | 3406 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,274 psi | 87% | 3389 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,346 psi | 85% | 3409 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,259 psi | 87% | 3386 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,057 psi | 88% | 3294 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 57,305 psi | 90% | 3291 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 57,392 psi | 90% | 3353 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,607 psi | 86% | 3432 fps | 96.4% |
| Somchem S335 | <<locked>> | 82% | 55,912 psi | 88% | 3287 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 56,188 psi | 88% | 3402 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 56,971 psi | 89% | 3484 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,709 psi | 87% | 3409 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 82% | 56,492 psi | 89% | 3274 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 56,362 psi | 88% | 3327 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 56,695 psi | 89% | 3337 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 57,740 psi | 90% | 3376 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,101 psi | 88% | 3412 fps | 99.6% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,561 psi | 81% | 3314 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 84% | 55,201 psi | 87% | 3330 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,477 psi | 87% | 3419 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,101 psi | 88% | 3481 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,260 psi | 88% | 3376 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 53,969 psi | 85% | 3425 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,455 psi | 71% | 3428 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,419 psi | 87% | 3392 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,246 psi | 88% | 3406 fps | 96.5% |
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 2495 | <<locked>> | 80% | 50,430 psi | 79% | 3225 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,385 psi | 76% | 3199 fps | 95.5% |
| Accurate 3100 | <<locked>> | 92% | 40,379 psi | 63% | 3087 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 47,747 psi | 75% | 3222 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,201 psi | 57% | 3015 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 53,171 psi | 83% | 3363 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 45,063 psi | 71% | 3176 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 96% | 52,823 psi | 83% | 3399 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,893 psi | 78% | 3415 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,527 psi | 71% | 3205 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,718 psi | 76% | 3287 fps | 99.2% |
| Alliant Reloder-16 | 71.7 gr | 80% | 35,418 psi | 56% | 3028 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,219 psi | 63% | 3182 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 96% | 52,257 psi | 82% | 3386 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 49,574 psi | 78% | 3373 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 86% | 31,531 psi | 49% | 2917 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 98% | 40,988 psi | 64% | 3196 fps | 96% |
| Alliant Reloder-26 | 87 gr | 88% | 37,014 psi | 58% | 3133 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,200 psi | 83% | 3366 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 45,890 psi | 72% | 3219 fps | 99.6% |
| Bofors RP5 | <<locked>> | 98% | 49,574 psi | 78% | 3373 fps | 95.1% |
| Bofors RP7 | <<locked>> | 84% | 45,905 psi | 72% | 3182 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 46,325 psi | 73% | 3222 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 84% | 43,961 psi | 69% | 3212 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 86% | 50,270 psi | 79% | 3310 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 53,780 psi | 84% | 3376 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,851 psi | 51% | 2907 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,575 psi | 79% | 3343 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 86% | 46,688 psi | 73% | 3301 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,948 psi | 42% | 1978 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,488 psi | 81% | 3314 fps | 99.9% |
| IMR 4064 | <<locked>> | 80% | 47,355 psi | 74% | 3222 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,792 psi | 78% | 3251 fps | 96.7% |
| IMR 4350 | <<locked>> | 88% | 46,833 psi | 73% | 3215 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 82% | 44,541 psi | 70% | 3156 fps | 95.1% |
| IMR 4831 | <<locked>> | 82% | 37,246 psi | 58% | 3028 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 49,966 psi | 78% | 3323 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 53,476 psi | 84% | 3333 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 52,083 psi | 82% | 3281 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 47,688 psi | 75% | 3225 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 39,378 psi | 62% | 3031 fps | 95.1% |
| Lovex S070 | <<locked>> | 84% | 42,743 psi | 67% | 3130 fps | 95% |
| Lovex S071 | <<locked>> | 98% | 41,466 psi | 65% | 3114 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 51,967 psi | 81% | 3301 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,620 psi | 82% | 3304 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,066 psi | 75% | 3271 fps | 99.4% |
| Norma MRP | <<locked>> | 94% | 45,687 psi | 72% | 3323 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 36,085 psi | 57% | 3015 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 48,486 psi | 76% | 3287 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 43,149 psi | 68% | 3199 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,427 psi | 43% | 2028 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,470 psi | 73% | 3202 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 52,634 psi | 82% | 3425 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,728 psi | 67% | 3258 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 38,682 psi | 61% | 3100 fps | 95.9% |
| ReloadSwiss RS 70 | 80.4 gr | 82% | 37,840 psi | 59% | 3104 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 49,516 psi | 78% | 3248 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 43,134 psi | 68% | 3150 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 96% | 51,314 psi | 80% | 3366 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 84% | 45,905 psi | 72% | 3182 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,378 psi | 62% | 3031 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 53,476 psi | 84% | 3333 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,688 psi | 75% | 3225 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 42,743 psi | 67% | 3130 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,338 psi | 69% | 3205 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,779 psi | 81% | 3320 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,692 psi | 83% | 3238 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,483 psi | 70% | 3074 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 43,990 psi | 69% | 3094 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 50,850 psi | 80% | 3363 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 52,562 psi | 82% | 3235 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,482 psi | 68% | 3153 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 32,532 psi | 51% | 2956 fps | 97.5% |
| Somchem S385 | <<locked>> | 94% | 48,776 psi | 76% | 3278 fps | 95.9% |
| Vihtavuori N133 | <<locked>> | 80% | 53,185 psi | 83% | 3222 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,545 psi | 78% | 3215 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,908 psi | 78% | 3225 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,524 psi | 65% | 3074 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 37,463 psi | 59% | 3018 fps | 95.7% |
| Vihtavuori N165 | <<locked>> | 98% | 48,225 psi | 76% | 3248 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 48,370 psi | 76% | 3209 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,072 psi | 58% | 3015 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 86% | 34,940 psi | 55% | 3015 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,927 psi | 58% | 2986 fps | 98% |
| Winchester 760 | <<locked>> | 84% | 44,121 psi | 69% | 3215 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 88% | 29,979 psi | 47% | 2943 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,822 psi | 81% | 3330 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 98% | 52,301 psi | 82% | 3333 fps | 95.6% |
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 88 powders for .300 Norma Mag. loaded with the .308 | 125gr | Nosler AccuBond. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,566 fps; across all powders the maximum-charge window runs from 2,205 fps to 3,566 fps. Accurate 3100 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, 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-16, ReloadSwiss RS 70, Alliant Reloder-26 rank at the top here: for .300 Norma Mag. with the .308 | 125gr | Nosler AccuBond 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.