Load Specifications
Load data in caliber .300 Rem. Ultra Mag. with .311 | 90gr | Inceptor SRR bullet and 92 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 ReloadSwiss RS 60.
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>> | 82% | 55,985 psi | 86% | 3517 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,912 psi | 86% | 3524 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 57,943 psi | 89% | 3599 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,240 psi | 76% | 3415 fps | 96.5% |
| Accurate 4064 | <<locked>> | 88% | 56,347 psi | 87% | 3573 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 58,682 psi | 90% | 3655 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 84% | 56,043 psi | 86% | 3612 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 90% | 57,609 psi | 89% | 3609 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 58,407 psi | 90% | 3622 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,724 psi | 86% | 3553 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 57,406 psi | 88% | 3740 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 58,276 psi | 90% | 3635 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 58,624 psi | 90% | 3661 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,390 psi | 85% | 3661 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 92% | 57,348 psi | 88% | 3701 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,137 psi | 71% | 3451 fps | 99% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 54,447 psi | 84% | 3665 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,869 psi | 88% | 3612 fps | 99.2% |
| Bofors RP3 | <<locked>> | 88% | 55,419 psi | 85% | 3586 fps | 99.9% |
| Bofors RP7 | <<locked>> | 92% | 55,288 psi | 85% | 3540 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,854 psi | 86% | 3550 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,911 psi | 85% | 3576 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,188 psi | 86% | 3593 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 94% | 57,537 psi | 89% | 3645 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 84% | 56,652 psi | 87% | 3629 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,840 psi | 86% | 3573 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 57,392 psi | 88% | 3648 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,810 psi | 84% | 3599 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,172 psi | 54% | 2474 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 58,233 psi | 90% | 3632 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 56,579 psi | 87% | 3622 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,898 psi | 88% | 3596 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,434 psi | 87% | 3556 fps | 96.8% |
| IMR 4350 | <<locked>> | 96% | 56,637 psi | 87% | 3563 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,290 psi | 88% | 3583 fps | 97% |
| IMR 4831 | <<locked>> | 96% | 55,172 psi | 85% | 3573 fps | 99% |
| IMR 4895 | <<locked>> | 86% | 56,086 psi | 86% | 3635 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 84% | 58,407 psi | 90% | 3622 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,507 psi | 87% | 3579 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 58,682 psi | 90% | 3599 fps | 99.8% |
| Lovex S062 | <<locked>> | 88% | 56,884 psi | 88% | 3593 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 57,014 psi | 88% | 3573 fps | 98.2% |
| Lovex S070 | <<locked>> | 96% | 58,624 psi | 90% | 3609 fps | 97.6% |
| Norma 201 | <<locked>> | 86% | 58,146 psi | 89% | 3615 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,317 psi | 85% | 3560 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,885 psi | 89% | 3645 fps | 99.8% |
| Norma MRPᴾ | <<locked>> | 100% | 52,881 psi | 81% | 3606 fps | 96.4% |
| Norma URP | <<locked>> | 96% | 57,203 psi | 88% | 3638 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 86% | 55,463 psi | 85% | 3593 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 96% | 56,739 psi | 87% | 3625 fps | 98% |
| Ramshot TAC | <<locked>> | 82% | 55,521 psi | 85% | 3556 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,390 psi | 85% | 3583 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,520 psi | 55% | 2523 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,507 psi | 87% | 3566 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,361 psi | 85% | 3665 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,666 psi | 87% | 3704 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,085 psi | 85% | 3599 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 58,465 psi | 90% | 3704 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 84% | 58,175 psi | 90% | 3606 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,984 psi | 85% | 3550 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 90% | 55,434 psi | 85% | 3576 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 92% | 55,288 psi | 85% | 3540 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 94% | 57,014 psi | 88% | 3573 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,507 psi | 87% | 3579 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,884 psi | 88% | 3593 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 58,624 psi | 90% | 3609 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,943 psi | 89% | 3645 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 58,088 psi | 89% | 3596 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,752 psi | 84% | 3566 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,477 psi | 85% | 3504 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,884 psi | 88% | 3484 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,508 psi | 89% | 3514 fps | 97.2% |
| Somchem S335 | <<locked>> | 84% | 55,143 psi | 85% | 3484 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 57,885 psi | 89% | 3586 fps | 99.7% |
| Somchem S355 | <<locked>> | 90% | 55,376 psi | 85% | 3576 fps | 99.8% |
| Somchem S365 | <<locked>> | 98% | 56,536 psi | 87% | 3642 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,840 psi | 86% | 3547 fps | 96.4% |
| Vihtavuori N130 | <<locked>> | 82% | 58,146 psi | 89% | 3520 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 55,883 psi | 86% | 3488 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 58,755 psi | 90% | 3576 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,115 psi | 86% | 3530 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,421 psi | 88% | 3550 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,782 psi | 86% | 3570 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 82% | 55,129 psi | 85% | 3556 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 88% | 58,566 psi | 90% | 3570 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,216 psi | 85% | 3570 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,503 psi | 79% | 3547 fps | 98.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,739 psi | 87% | 3533 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,985 psi | 86% | 3609 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,725 psi | 89% | 3645 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,032 psi | 65% | 3461 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,071 psi | 85% | 3573 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% | 52,272 psi | 80% | 3461 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,049 psi | 69% | 3346 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,708 psi | 83% | 3530 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 45,658 psi | 70% | 3346 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 42,583 psi | 66% | 3330 fps | 99.8% |
| Accurate 4350 | <<locked>> | 86% | 40,074 psi | 62% | 3287 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 48,820 psi | 75% | 3481 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 41,234 psi | 63% | 3287 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,981 psi | 78% | 3497 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 51,822 psi | 80% | 3494 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,614 psi | 70% | 3504 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,191 psi | 63% | 3307 fps | 97.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,367 psi | 68% | 3392 fps | 97.2% |
| Alliant Reloder-16 | 81.3 gr | 86% | 39,233 psi | 60% | 3310 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,289 psi | 56% | 3248 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 34,751 psi | 53% | 3169 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 94% | 42,496 psi | 65% | 3409 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,081 psi | 76% | 3471 fps | 97.9% |
| Bofors RP3 | <<locked>> | 80% | 41,408 psi | 64% | 3310 fps | 97.9% |
| Bofors RP7 | <<locked>> | 90% | 51,648 psi | 79% | 3471 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,315 psi | 81% | 3491 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,126 psi | 79% | 3510 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 42,105 psi | 65% | 3310 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 90% | 49,705 psi | 76% | 3497 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 49,342 psi | 76% | 3497 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 36,143 psi | 56% | 3173 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,137 psi | 71% | 3448 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 90% | 50,531 psi | 78% | 3517 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,049 psi | 40% | 2241 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,384 psi | 73% | 3438 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 49,197 psi | 76% | 3504 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,250 psi | 67% | 3333 fps | 97% |
| IMR 4166 Enduron | <<locked>> | 82% | 49,255 psi | 76% | 3422 fps | 95% |
| IMR 4350 | <<locked>> | 94% | 52,953 psi | 81% | 3497 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 50,256 psi | 77% | 3455 fps | 95.2% |
| IMR 4831 | <<locked>> | 88% | 41,408 psi | 64% | 3301 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 45,498 psi | 70% | 3428 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 50,981 psi | 78% | 3497 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 48,762 psi | 75% | 3448 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 48,182 psi | 74% | 3412 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 43,294 psi | 67% | 3337 fps | 98.6% |
| Lovex S065 | <<locked>> | 88% | 46,630 psi | 72% | 3376 fps | 95.8% |
| Lovex S070 | <<locked>> | 90% | 47,906 psi | 74% | 3409 fps | 95% |
| Norma 201 | <<locked>> | 80% | 47,471 psi | 73% | 3425 fps | 99.2% |
| Norma 202 | <<locked>> | 80% | 48,051 psi | 74% | 3435 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,714 psi | 67% | 3376 fps | 97.6% |
| Norma MRP | <<locked>> | 98% | 48,994 psi | 75% | 3527 fps | 95.2% |
| Norma URP | <<locked>> | 86% | 39,972 psi | 62% | 3291 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 44,309 psi | 68% | 3383 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 90% | 45,600 psi | 70% | 3406 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 51,706 psi | 80% | 3484 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,459 psi | 79% | 3514 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,295 psi | 40% | 2290 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 49,110 psi | 76% | 3428 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,601 psi | 73% | 3517 fps | 97.8% |
| ReloadSwiss RS 60 | 81.4 gr | 80% | 38,653 psi | 59% | 3337 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 40,408 psi | 62% | 3301 fps | 95% |
| ReloadSwiss RS 70 | 90.9 gr | 88% | 43,047 psi | 66% | 3389 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 51,097 psi | 79% | 3488 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,005 psi | 69% | 3363 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 38,682 psi | 60% | 3235 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 90% | 51,648 psi | 79% | 3471 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 46,630 psi | 72% | 3376 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,762 psi | 75% | 3448 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 43,294 psi | 67% | 3337 fps | 98.6% |
| Shooters World SW4350 | <<locked>> | 90% | 47,906 psi | 74% | 3409 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,147 psi | 62% | 3294 fps | 96.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,183 psi | 77% | 3455 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,587 psi | 73% | 3432 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,501 psi | 75% | 3386 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,625 psi | 63% | 3205 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 49,908 psi | 77% | 3376 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 48,327 psi | 74% | 3373 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,908 psi | 77% | 3448 fps | 98.8% |
| Somchem S355 | <<locked>> | 80% | 39,218 psi | 60% | 3248 fps | 96.7% |
| Somchem S365 | <<locked>> | 84% | 33,228 psi | 51% | 3146 fps | 96.1% |
| Somchem S385 | <<locked>> | 98% | 51,851 psi | 80% | 3478 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 54,607 psi | 84% | 3468 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,950 psi | 75% | 3376 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,759 psi | 69% | 3353 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,701 psi | 70% | 3353 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,565 psi | 58% | 3169 fps | 97.7% |
| Vihtavuori N160 | <<locked>> | 86% | 41,756 psi | 64% | 3294 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 51,459 psi | 79% | 3494 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 44,425 psi | 68% | 3330 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 41,379 psi | 64% | 3291 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 92% | 38,363 psi | 59% | 3264 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,707 psi | 52% | 3051 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 51,866 psi | 80% | 3540 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 49,922 psi | 77% | 3501 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 94% | 33,591 psi | 52% | 3196 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,587 psi | 73% | 3435 fps | 98.9% |
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 92 powders for .300 Rem. Ultra Mag. loaded with the .311 | 90gr | Inceptor SRR. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,740 fps; across all powders the maximum-charge window runs from 2,474 fps to 3,740 fps. Accurate 3100 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.311" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, 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. Alliant Reloder-16, ReloadSwiss RS 70, ReloadSwiss RS 60 rank at the top here: for .300 Rem. Ultra Mag. with the .311 | 90gr | Inceptor SRR 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.