Load Specifications
Load data in caliber .300 Weath. Mag. with .308 | 120gr | SAKO Powerhead Blade bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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>> | 84% | 54,897 psi | 86% | 3291 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 57,014 psi | 89% | 3366 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 57,595 psi | 90% | 3366 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,666 psi | 87% | 3379 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 57,450 psi | 90% | 3412 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 53,925 psi | 85% | 3422 fps | 98.5% |
| ADI AR 2206H | <<locked>> | 88% | 57,682 psi | 90% | 3445 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 92% | 55,434 psi | 87% | 3383 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,753 psi | 89% | 3396 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 86% | 57,377 psi | 90% | 3376 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,085 psi | 85% | 3507 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,390 psi | 87% | 3409 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,638 psi | 90% | 3353 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,912 psi | 88% | 3432 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,013 psi | 86% | 3488 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,855 psi | 89% | 3540 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,523 psi | 62% | 3156 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,172 psi | 85% | 3389 fps | 98.6% |
| Bofors RP3 | <<locked>> | 92% | 56,260 psi | 88% | 3425 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,897 psi | 86% | 3320 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,449 psi | 88% | 3422 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,346 psi | 85% | 3465 fps | 99% |
| Hodgdon H322 | <<locked>> | 82% | 57,087 psi | 89% | 3396 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 57,334 psi | 90% | 3438 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 98% | 56,927 psi | 89% | 3481 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 86% | 54,824 psi | 86% | 3399 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,256 psi | 80% | 3346 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,288 psi | 85% | 3428 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 55% | 2159 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,043 psi | 88% | 3402 fps | 99.7% |
| IMR 3031 | <<locked>> | 86% | 54,621 psi | 86% | 3396 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,679 psi | 86% | 3363 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,781 psi | 86% | 3330 fps | 96% |
| IMR 4198 | <<locked>> | 82% | 57,348 psi | 90% | 3310 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,710 psi | 89% | 3399 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,737 psi | 86% | 3356 fps | 95.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,578 psi | 86% | 3415 fps | 98.7% |
| IMR 4895 | <<locked>> | 90% | 57,348 psi | 90% | 3468 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 86% | 56,753 psi | 89% | 3396 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 57,058 psi | 89% | 3376 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,725 psi | 90% | 3419 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 57,029 psi | 89% | 3366 fps | 99.6% |
| Lovex S062 | <<locked>> | 90% | 54,636 psi | 86% | 3363 fps | 99.9% |
| Lovex S065 | <<locked>> | 98% | 57,450 psi | 90% | 3406 fps | 97.9% |
| Lovex S070 | <<locked>> | 98% | 55,129 psi | 86% | 3383 fps | 96.4% |
| Norma 201 | <<locked>> | 88% | 56,333 psi | 88% | 3383 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 56,985 psi | 89% | 3392 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,085 psi | 86% | 3415 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 56,521 psi | 89% | 3471 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 90% | 55,898 psi | 88% | 3435 fps | 99.4% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,695 psi | 87% | 3461 fps | 97.3% |
| Ramshot TAC | <<locked>> | 86% | 57,348 psi | 90% | 3402 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,913 psi | 89% | 3428 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,638 psi | 90% | 3389 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,708 psi | 56% | 2208 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,086 psi | 88% | 3376 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 57,537 psi | 90% | 3409 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,507 psi | 89% | 3507 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 56,391 psi | 88% | 3547 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 53,809 psi | 84% | 3442 fps | 98.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 57,638 psi | 90% | 3547 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 86% | 57,261 psi | 90% | 3376 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,985 psi | 89% | 3386 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 56,101 psi | 88% | 3415 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 57,450 psi | 90% | 3406 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,725 psi | 90% | 3419 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,636 psi | 86% | 3363 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 55,129 psi | 86% | 3383 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 54,331 psi | 85% | 3419 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,767 psi | 87% | 3376 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,304 psi | 88% | 3409 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,433 psi | 85% | 3271 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,636 psi | 86% | 3261 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,462 psi | 85% | 3291 fps | 96% |
| Somchem S321 | <<locked>> | 82% | 54,418 psi | 85% | 3366 fps | 99.9% |
| Somchem S335 | <<locked>> | 88% | 57,188 psi | 90% | 3317 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,245 psi | 87% | 3369 fps | 99.4% |
| Somchem S355 | <<locked>> | 94% | 56,318 psi | 88% | 3412 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,068 psi | 80% | 3415 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 57,435 psi | 90% | 3291 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,650 psi | 86% | 3258 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,652 psi | 89% | 3353 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 57,522 psi | 90% | 3363 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,360 psi | 85% | 3330 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,535 psi | 87% | 3409 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 86% | 57,348 psi | 90% | 3396 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,043 psi | 88% | 3356 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,766 psi | 86% | 3412 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,381 psi | 68% | 3251 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,275 psi | 88% | 3386 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 57,334 psi | 90% | 3445 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 57,145 psi | 90% | 3481 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,333 psi | 88% | 3419 fps | 99.8% |
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% | 48,428 psi | 76% | 3182 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,345 psi | 84% | 3307 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,278 psi | 65% | 3077 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,501 psi | 76% | 3251 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 39,001 psi | 61% | 3058 fps | 99.5% |
| Accurate 4350 | <<locked>> | 90% | 40,596 psi | 64% | 3146 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 44,643 psi | 70% | 3189 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 80% | 37,985 psi | 60% | 3005 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,702 psi | 73% | 3209 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 80% | 47,050 psi | 74% | 3212 fps | 100% |
| Alliant Power Pro 2000-MR | 67.2 gr | 80% | 40,698 psi | 64% | 3199 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,594 psi | 59% | 3028 fps | 96.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,331 psi | 85% | 3301 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,379 psi | 63% | 3104 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 90% | 40,161 psi | 63% | 3156 fps | 95.2% |
| Alliant Reloder-17 | 67.9 gr | 82% | 34,925 psi | 55% | 3038 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 98% | 37,028 psi | 58% | 3087 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,048 psi | 69% | 3182 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 37,275 psi | 58% | 3028 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,530 psi | 76% | 3202 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,759 psi | 72% | 3222 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,604 psi | 79% | 3392 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 80% | 53,606 psi | 84% | 3340 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 43,700 psi | 68% | 3166 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 53,229 psi | 83% | 3412 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 45,063 psi | 71% | 3205 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 34,664 psi | 54% | 2969 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,133 psi | 64% | 3156 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,266 psi | 41% | 1936 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,250 psi | 68% | 3146 fps | 97.9% |
| IMR 3031 | <<locked>> | 80% | 44,686 psi | 70% | 3212 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,871 psi | 62% | 3051 fps | 96% |
| IMR 4166 Enduron | <<locked>> | 86% | 51,372 psi | 81% | 3264 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 54,070 psi | 85% | 3258 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 53,171 psi | 83% | 3337 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 51,329 psi | 80% | 3291 fps | 95.1% |
| IMR 4831 | <<locked>> | 92% | 41,727 psi | 65% | 3153 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 41,379 psi | 65% | 3140 fps | 97% |
| IMR 8208 XBR | <<locked>> | 80% | 46,702 psi | 73% | 3209 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 53,200 psi | 83% | 3310 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,859 psi | 69% | 3166 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 44,628 psi | 70% | 3123 fps | 97.8% |
| Lovex S062 | <<locked>> | 80% | 39,769 psi | 62% | 3058 fps | 97.8% |
| Lovex S065 | <<locked>> | 90% | 44,889 psi | 70% | 3163 fps | 95% |
| Lovex S070 | <<locked>> | 96% | 51,663 psi | 81% | 3317 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 43,859 psi | 69% | 3143 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 44,092 psi | 69% | 3156 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 39,769 psi | 62% | 3091 fps | 96.4% |
| Norma URP | <<locked>> | 90% | 40,495 psi | 63% | 3140 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 39,378 psi | 62% | 3097 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 96% | 48,588 psi | 76% | 3323 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 46,934 psi | 74% | 3202 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,296 psi | 73% | 3225 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,676 psi | 79% | 3264 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,556 psi | 42% | 1982 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,518 psi | 82% | 3314 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 50,357 psi | 79% | 3274 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,569 psi | 67% | 3222 fps | 96.5% |
| ReloadSwiss RS 60 | 66.2 gr | 80% | 34,635 psi | 54% | 3048 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 43,497 psi | 68% | 3232 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 46,514 psi | 73% | 3317 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 80% | 47,703 psi | 75% | 3205 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,669 psi | 65% | 3084 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 80% | 34,998 psi | 55% | 2959 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 44,889 psi | 70% | 3163 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,859 psi | 69% | 3166 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 39,769 psi | 62% | 3058 fps | 97.8% |
| Shooters World SW4350 | <<locked>> | 96% | 51,663 psi | 81% | 3317 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 38,609 psi | 61% | 3081 fps | 95.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,121 psi | 71% | 3169 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,279 psi | 68% | 3150 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,034 psi | 71% | 3104 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,463 psi | 59% | 2933 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 50,908 psi | 80% | 3225 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 50,821 psi | 80% | 3301 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 44,802 psi | 70% | 3100 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,831 psi | 70% | 3166 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 35,969 psi | 56% | 2976 fps | 95.7% |
| Somchem S365 | <<locked>> | 86% | 31,763 psi | 50% | 2943 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 50,778 psi | 80% | 3186 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,324 psi | 71% | 3100 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,002 psi | 64% | 3074 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,669 psi | 65% | 3074 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 34,069 psi | 53% | 2900 fps | 96.6% |
| Vihtavuori N160 | <<locked>> | 90% | 42,453 psi | 67% | 3150 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 46,891 psi | 73% | 3202 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 40,335 psi | 63% | 3058 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 90% | 42,003 psi | 66% | 3150 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 96% | 37,797 psi | 59% | 3117 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 34,824 psi | 55% | 2923 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 46,731 psi | 73% | 3255 fps | 99.6% |
| Winchester 760 | <<locked>> | 94% | 49,937 psi | 78% | 3346 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,888 psi | 67% | 3153 fps | 97.9% |
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 93 powders for .300 Weath. Mag. loaded with the .308 | 120gr | SAKO Powerhead Blade. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,547 fps; across all powders the maximum-charge window runs from 2,159 fps to 3,547 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 93 of the 93 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 120.0 gr projectile in 0.308" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Hodgdon Hybrid 100V 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 Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .300 Weath. Mag. with the .308 | 120gr | SAKO Powerhead Blade 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.