Load Specifications
Load data in caliber .300 Win. Mag. with .307 | 110gr | Prvi Partizan SP RN bullet and 85 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>> | 86% | 55,071 psi | 88% | 3406 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 53,548 psi | 86% | 3419 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 53,490 psi | 86% | 3412 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,767 psi | 89% | 3484 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 53,388 psi | 86% | 3455 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,258 psi | 85% | 3507 fps | 97.5% |
| ADI AR 2206H | <<locked>> | 88% | 54,404 psi | 87% | 3488 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 94% | 55,405 psi | 89% | 3481 fps | 98.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 53,359 psi | 86% | 3438 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 86% | 53,534 psi | 86% | 3438 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,824 psi | 88% | 3566 fps | 99.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,041 psi | 87% | 3599 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,288 psi | 89% | 3507 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,578 psi | 88% | 3419 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 55,927 psi | 90% | 3530 fps | 98.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,474 psi | 83% | 3510 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 52,678 psi | 84% | 3563 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,346 psi | 87% | 3491 fps | 97.9% |
| Bofors RP3 | <<locked>> | 94% | 56,086 psi | 90% | 3527 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,288 psi | 89% | 3432 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 86% | 52,750 psi | 85% | 3461 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,476 psi | 87% | 3570 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 82% | 53,737 psi | 86% | 3451 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,158 psi | 88% | 3471 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 53,592 psi | 86% | 3465 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 88% | 54,911 psi | 88% | 3504 fps | 99.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,587 psi | 76% | 3369 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,273 psi | 87% | 3530 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,824 psi | 56% | 2228 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,260 psi | 90% | 3507 fps | 99.3% |
| IMR 3031 | <<locked>> | 88% | 54,186 psi | 87% | 3501 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 54,839 psi | 88% | 3465 fps | 98.4% |
| IMR 4198 | <<locked>> | 82% | 54,476 psi | 87% | 3379 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,430 psi | 81% | 3432 fps | 97.1% |
| IMR 4895 | <<locked>> | 90% | 53,621 psi | 86% | 3504 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 86% | 53,359 psi | 86% | 3438 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 82% | 53,417 psi | 86% | 3419 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 88% | 53,998 psi | 87% | 3465 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,056 psi | 87% | 3412 fps | 98.7% |
| Lovex S062 | <<locked>> | 92% | 54,433 psi | 87% | 3461 fps | 99.5% |
| Lovex S065 | <<locked>> | 98% | 53,925 psi | 86% | 3435 fps | 96.3% |
| Norma 201 | <<locked>> | 88% | 53,084 psi | 85% | 3432 fps | 99.4% |
| Norma 202 | <<locked>> | 88% | 53,388 psi | 86% | 3438 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,085 psi | 88% | 3517 fps | 98.9% |
| Norma URPᴾ | <<locked>> | 100% | 52,518 psi | 84% | 3494 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 92% | 55,927 psi | 90% | 3537 fps | 98.9% |
| Ramshot TAC | <<locked>> | 86% | 54,056 psi | 87% | 3438 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 53,374 psi | 86% | 3465 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,621 psi | 88% | 3435 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,157 psi | 56% | 2280 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,275 psi | 90% | 3488 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 56,188 psi | 90% | 3606 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 56,231 psi | 90% | 3645 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,272 psi | 85% | 3530 fps | 97.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,447 psi | 86% | 3550 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 86% | 53,809 psi | 86% | 3428 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 53,476 psi | 86% | 3428 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 96% | 55,666 psi | 89% | 3510 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 98% | 53,925 psi | 86% | 3435 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 53,998 psi | 87% | 3465 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 54,433 psi | 87% | 3461 fps | 99.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 56,202 psi | 90% | 3448 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 53,940 psi | 86% | 3510 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,288 psi | 89% | 3445 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,072 psi | 90% | 3478 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,391 psi | 90% | 3510 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,592 psi | 88% | 3379 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,940 psi | 88% | 3373 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 54,694 psi | 88% | 3471 fps | 99.6% |
| Somchem S335 | <<locked>> | 88% | 54,128 psi | 87% | 3373 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,477 psi | 89% | 3471 fps | 98.8% |
| Somchem S355 | <<locked>> | 96% | 56,072 psi | 90% | 3510 fps | 99.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,876 psi | 75% | 3428 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 84% | 54,375 psi | 87% | 3356 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,679 psi | 88% | 3366 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 56,391 psi | 90% | 3461 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,157 psi | 87% | 3419 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,128 psi | 87% | 3428 fps | 99.7% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,143 psi | 88% | 3497 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 86% | 53,795 psi | 86% | 3435 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 92% | 56,173 psi | 90% | 3465 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,302 psi | 87% | 3497 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 52,605 psi | 84% | 3412 fps | 99.1% |
| Winchester 748 | <<locked>> | 86% | 53,490 psi | 86% | 3488 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 52,634 psi | 84% | 3451 fps | 98.9% |
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% | 45,498 psi | 73% | 3232 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,908 psi | 80% | 3350 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 38,218 psi | 61% | 3114 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 45,049 psi | 72% | 3284 fps | 99.3% |
| Accurate 4064 | <<locked>> | 80% | 36,100 psi | 58% | 3081 fps | 98.3% |
| Accurate 4350 | <<locked>> | 96% | 46,180 psi | 74% | 3366 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 41,901 psi | 67% | 3219 fps | 96% |
| ADI AR 2208 | <<locked>> | 86% | 43,076 psi | 69% | 3222 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,947 psi | 70% | 3245 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 80% | 43,642 psi | 70% | 3261 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,126 psi | 82% | 3494 fps | 98.6% |
| Alliant Power Pro 2000-MR | 69.9 gr | 84% | 43,743 psi | 70% | 3366 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 37,362 psi | 60% | 3114 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,213 psi | 82% | 3363 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,989 psi | 69% | 3261 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 96% | 45,382 psi | 73% | 3373 fps | 95.8% |
| Alliant Reloder-17 | 72.1 gr | 88% | 39,871 psi | 64% | 3264 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 44,280 psi | 71% | 3281 fps | 95.5% |
| Bofors RP3 | <<locked>> | 82% | 37,101 psi | 59% | 3117 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,890 psi | 74% | 3248 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,757 psi | 69% | 3255 fps | 98.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,065 psi | 75% | 3419 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 80% | 50,169 psi | 80% | 3386 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,401 psi | 82% | 3406 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 46,775 psi | 75% | 3327 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 42,235 psi | 68% | 3235 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 39,160 psi | 63% | 3173 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,247 psi | 61% | 3176 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,933 psi | 42% | 2001 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,625 psi | 65% | 3179 fps | 96.2% |
| IMR 3031 | <<locked>> | 80% | 41,466 psi | 66% | 3251 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 42,438 psi | 68% | 3205 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 51,314 psi | 82% | 3327 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 44,063 psi | 71% | 3297 fps | 95.4% |
| IMR 4895 | <<locked>> | 82% | 41,307 psi | 66% | 3235 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 80% | 43,947 psi | 70% | 3245 fps | 97.8% |
| Lovex D073.5 | <<locked>> | 80% | 49,937 psi | 80% | 3353 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 40,799 psi | 65% | 3199 fps | 98.6% |
| Lovex S060 | <<locked>> | 80% | 42,163 psi | 68% | 3159 fps | 96.2% |
| Lovex S062 | <<locked>> | 80% | 37,173 psi | 60% | 3084 fps | 96% |
| Lovex S065 | <<locked>> | 96% | 50,691 psi | 81% | 3373 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 41,147 psi | 66% | 3176 fps | 97.2% |
| Norma 202 | <<locked>> | 80% | 41,278 psi | 66% | 3192 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 39,726 psi | 64% | 3182 fps | 95.3% |
| Norma URP | <<locked>> | 96% | 45,905 psi | 74% | 3360 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 82% | 39,450 psi | 63% | 3189 fps | 95% |
| Ramshot TAC | <<locked>> | 84% | 50,546 psi | 81% | 3366 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,410 psi | 70% | 3255 fps | 96.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,645 psi | 76% | 3297 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,165 psi | 42% | 2047 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,313 psi | 79% | 3360 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 42,250 psi | 68% | 3314 fps | 95.3% |
| ReloadSwiss RS 60 | 65.6 gr | 80% | 32,358 psi | 52% | 3051 fps | 95% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 46,021 psi | 74% | 3379 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 49,966 psi | 80% | 3478 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 44,889 psi | 72% | 3248 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 39,102 psi | 63% | 3114 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 84% | 37,144 psi | 60% | 3110 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 50,691 psi | 81% | 3373 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,799 psi | 65% | 3199 fps | 98.6% |
| Shooters World Precision | <<locked>> | 80% | 37,173 psi | 60% | 3084 fps | 96% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,359 psi | 84% | 3379 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 41,162 psi | 66% | 3235 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,822 psi | 83% | 3383 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 48,617 psi | 78% | 3333 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,625 psi | 65% | 3176 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,409 psi | 68% | 3143 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,114 psi | 56% | 2966 fps | 98.7% |
| Somchem S321 | <<locked>> | 80% | 47,747 psi | 77% | 3337 fps | 98.8% |
| Somchem S335 | <<locked>> | 80% | 42,192 psi | 68% | 3146 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 42,003 psi | 67% | 3196 fps | 96% |
| Somchem S355 | <<locked>> | 84% | 38,087 psi | 61% | 3123 fps | 95.3% |
| Somchem S365 | <<locked>> | 92% | 35,868 psi | 58% | 3153 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 47,979 psi | 77% | 3245 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,656 psi | 68% | 3146 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,116 psi | 61% | 3110 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 38,986 psi | 63% | 3110 fps | 99% |
| Vihtavuori N150 | <<locked>> | 82% | 33,997 psi | 55% | 2982 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 94% | 45,150 psi | 72% | 3297 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 44,063 psi | 71% | 3241 fps | 98% |
| Vihtavuori N540 | <<locked>> | 80% | 37,739 psi | 61% | 3087 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 94% | 44,541 psi | 71% | 3297 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 37,391 psi | 60% | 3071 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 43,395 psi | 70% | 3281 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,885 psi | 64% | 3176 fps | 96.1% |
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 85 powders for .300 Win. Mag. loaded with the .307 | 110gr | Prvi Partizan SP RN. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,645 fps; across all powders the maximum-charge window runs from 2,228 fps to 3,645 fps. Accurate 4350 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. Accurate 4350, Alliant Reloder-16, 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 Win. Mag. with the .307 | 110gr | Prvi Partizan SP RN 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.