Load Specifications
Load data in caliber .300 Weath. Mag. with .307 | 110gr | Prvi Partizan HSP bullet and 88 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-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% | 56,289 psi | 88% | 3448 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,550 psi | 87% | 3468 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,508 psi | 90% | 3540 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 55,651 psi | 87% | 3514 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,376 psi | 88% | 3589 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 86% | 55,811 psi | 87% | 3547 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 92% | 56,956 psi | 89% | 3540 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,505 psi | 85% | 3491 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 84% | 55,463 psi | 87% | 3484 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,898 psi | 88% | 3671 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,116 psi | 90% | 3570 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 90% | 57,711 psi | 90% | 3596 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,014 psi | 89% | 3655 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,027 psi | 86% | 3635 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,075 psi | 64% | 3304 fps | 97% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,717 psi | 73% | 3497 fps | 96.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,970 psi | 88% | 3550 fps | 98.7% |
| Bofors RP3 | <<locked>> | 90% | 54,302 psi | 85% | 3520 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,086 psi | 88% | 3481 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,273 psi | 85% | 3514 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,333 psi | 88% | 3632 fps | 99% |
| Hodgdon H380 | <<locked>> | 90% | 55,332 psi | 87% | 3530 fps | 98% |
| Hodgdon H414 | <<locked>> | 96% | 55,288 psi | 87% | 3576 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 56,434 psi | 88% | 3563 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,476 psi | 84% | 3510 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,130 psi | 88% | 3589 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,259 psi | 55% | 2283 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,595 psi | 90% | 3563 fps | 99.7% |
| IMR 3031 | <<locked>> | 86% | 56,318 psi | 88% | 3556 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,246 psi | 88% | 3527 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,246 psi | 88% | 3491 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,391 psi | 88% | 3517 fps | 96% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,753 psi | 89% | 3576 fps | 98.8% |
| IMR 4895 | <<locked>> | 88% | 55,506 psi | 87% | 3570 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 84% | 54,505 psi | 85% | 3491 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 86% | 55,811 psi | 87% | 3520 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,143 psi | 86% | 3468 fps | 99.3% |
| Lovex S062 | <<locked>> | 90% | 56,246 psi | 88% | 3527 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 55,927 psi | 88% | 3510 fps | 97.4% |
| Lovex S070 | <<locked>> | 98% | 57,072 psi | 89% | 3543 fps | 96.5% |
| Norma 201 | <<locked>> | 86% | 54,520 psi | 85% | 3488 fps | 99.8% |
| Norma 202 | <<locked>> | 86% | 55,056 psi | 86% | 3494 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,884 psi | 89% | 3576 fps | 99.4% |
| Norma URP | <<locked>> | 98% | 55,172 psi | 86% | 3573 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 88% | 54,114 psi | 85% | 3533 fps | 99% |
| Ramshot Hunter | <<locked>> | 98% | 54,056 psi | 85% | 3553 fps | 96.7% |
| Ramshot TAC | <<locked>> | 84% | 55,158 psi | 86% | 3497 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,824 psi | 86% | 3520 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,622 psi | 87% | 3488 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,795 psi | 56% | 2336 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,435 psi | 90% | 3537 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,579 psi | 87% | 3504 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,563 psi | 86% | 3606 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,621 psi | 86% | 3645 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,275 psi | 88% | 3609 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,869 psi | 88% | 3638 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 84% | 55,100 psi | 86% | 3478 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,027 psi | 86% | 3484 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 92% | 54,360 psi | 85% | 3514 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,927 psi | 88% | 3510 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,811 psi | 87% | 3520 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,246 psi | 88% | 3527 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 57,072 psi | 89% | 3543 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,202 psi | 88% | 3579 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,406 psi | 90% | 3537 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,360 psi | 85% | 3507 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,608 psi | 87% | 3432 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,260 psi | 88% | 3422 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,217 psi | 88% | 3448 fps | 96.1% |
| Somchem S321 | <<locked>> | 82% | 56,086 psi | 88% | 3527 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 55,347 psi | 87% | 3425 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,101 psi | 89% | 3530 fps | 99.4% |
| Somchem S355 | <<locked>> | 92% | 54,491 psi | 85% | 3510 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,214 psi | 83% | 3576 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 55,201 psi | 87% | 3396 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,840 psi | 88% | 3415 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,752 psi | 86% | 3458 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,767 psi | 87% | 3468 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,217 psi | 88% | 3494 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 53,998 psi | 85% | 3507 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 84% | 55,056 psi | 86% | 3491 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 90% | 57,725 psi | 90% | 3514 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,855 psi | 89% | 3573 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,339 psi | 71% | 3406 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,505 psi | 85% | 3478 fps | 99.7% |
| Winchester 748 | <<locked>> | 84% | 55,259 psi | 87% | 3547 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,564 psi | 87% | 3579 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,360 psi | 85% | 3510 fps | 99.5% |
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 2015 | <<locked>> | 80% | 49,574 psi | 78% | 3337 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,453 psi | 67% | 3225 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,835 psi | 78% | 3406 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 40,118 psi | 63% | 3202 fps | 99.5% |
| Accurate 4350 | <<locked>> | 90% | 42,279 psi | 66% | 3297 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 45,890 psi | 72% | 3343 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 82% | 41,611 psi | 65% | 3219 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,950 psi | 75% | 3363 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 48,443 psi | 76% | 3369 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,047 psi | 66% | 3356 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,711 psi | 61% | 3176 fps | 96.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,553 psi | 65% | 3255 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 90% | 41,437 psi | 65% | 3307 fps | 95.3% |
| Alliant Reloder-17 | 73.9 gr | 82% | 36,056 psi | 56% | 3179 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 96% | 36,158 psi | 57% | 3169 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 98% | 43,424 psi | 68% | 3415 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,382 psi | 71% | 3333 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 38,609 psi | 61% | 3176 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,647 psi | 78% | 3360 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,282 psi | 74% | 3379 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,257 psi | 82% | 3556 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 84% | 45,107 psi | 71% | 3317 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 94% | 51,576 psi | 81% | 3501 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 46,296 psi | 73% | 3360 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 35,752 psi | 56% | 3110 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,598 psi | 67% | 3314 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 41% | 2054 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,440 psi | 70% | 3297 fps | 97.8% |
| IMR 3031 | <<locked>> | 80% | 45,977 psi | 72% | 3369 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,857 psi | 64% | 3196 fps | 95.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 52,765 psi | 83% | 3425 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 52,939 psi | 83% | 3451 fps | 95.2% |
| IMR 4831 | <<locked>> | 92% | 43,352 psi | 68% | 3304 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 42,569 psi | 67% | 3291 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 80% | 47,950 psi | 75% | 3363 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 45,353 psi | 71% | 3323 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 45,585 psi | 71% | 3271 fps | 97.7% |
| Lovex S062 | <<locked>> | 80% | 40,799 psi | 64% | 3202 fps | 97.7% |
| Lovex S065 | <<locked>> | 90% | 46,195 psi | 72% | 3310 fps | 95% |
| Lovex S070 | <<locked>> | 96% | 53,548 psi | 84% | 3481 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 44,904 psi | 70% | 3291 fps | 98.6% |
| Norma 202 | <<locked>> | 80% | 45,310 psi | 71% | 3307 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 40,915 psi | 64% | 3238 fps | 96.4% |
| Norma URP | <<locked>> | 90% | 42,134 psi | 66% | 3297 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 40,785 psi | 64% | 3248 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 96% | 50,444 psi | 79% | 3481 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 48,211 psi | 76% | 3356 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,761 psi | 75% | 3379 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,909 psi | 81% | 3419 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,571 psi | 42% | 2096 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,882 psi | 84% | 3474 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 51,967 psi | 81% | 3435 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,874 psi | 69% | 3373 fps | 96.5% |
| ReloadSwiss RS 60 | 72.1 gr | 80% | 35,810 psi | 56% | 3192 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 45,295 psi | 71% | 3386 fps | 96% |
| ReloadSwiss RS 70 | 84.2 gr | 92% | 45,092 psi | 71% | 3399 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 48,820 psi | 77% | 3360 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 42,598 psi | 67% | 3228 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 80% | 36,230 psi | 57% | 3107 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 46,195 psi | 72% | 3310 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,353 psi | 71% | 3323 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 40,799 psi | 64% | 3202 fps | 97.7% |
| Shooters World SW4350 | <<locked>> | 96% | 53,548 psi | 84% | 3481 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 39,856 psi | 62% | 3228 fps | 95.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,514 psi | 73% | 3320 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,425 psi | 70% | 3297 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,137 psi | 72% | 3255 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,464 psi | 60% | 3077 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 52,620 psi | 82% | 3379 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 52,286 psi | 82% | 3455 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 45,788 psi | 72% | 3248 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,180 psi | 72% | 3317 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 36,883 psi | 58% | 3114 fps | 95.5% |
| Somchem S365 | <<locked>> | 86% | 32,938 psi | 52% | 3084 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 51,953 psi | 81% | 3340 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,441 psi | 73% | 3251 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,221 psi | 66% | 3225 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,931 psi | 67% | 3225 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 35,215 psi | 55% | 3038 fps | 96.6% |
| Vihtavuori N160 | <<locked>> | 90% | 44,019 psi | 69% | 3301 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 48,240 psi | 76% | 3360 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 80% | 41,495 psi | 65% | 3202 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 90% | 43,497 psi | 68% | 3297 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 96% | 39,436 psi | 62% | 3264 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 35,926 psi | 56% | 3064 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 48,066 psi | 75% | 3409 fps | 99.6% |
| Winchester 760 | <<locked>> | 94% | 51,793 psi | 81% | 3504 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,063 psi | 69% | 3301 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 88 powders for .300 Weath. Mag. loaded with the .307 | 110gr | Prvi Partizan HSP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,671 fps; across all powders the maximum-charge window runs from 2,283 fps to 3,671 fps. Alliant Reloder-16 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 55–90 %, leaving at least 10 % headroom. Alliant Reloder-16, 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-17 rank at the top here: for .300 Weath. Mag. with the .307 | 110gr | Prvi Partizan HSP 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.