Load Specifications
Bullet Manufacturer:Winchester
Bullet Weight:190 gr
Bullet Diameter:0.311"
Bullet Length:<<locked>>
Case Length (l3):2.003"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:74 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:6.0
Load data in caliber .300 Rem. SA Ultra Mag. with .311 | 190gr | Winchester Silvertip bullet and 109 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance 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>> | 82% | 57,696 psi | 89% | 2602 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 57,363 psi | 88% | 2635 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 58,552 psi | 90% | 2697 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,448 psi | 85% | 2651 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,863 psi | 74% | 2628 fps | 98.8% |
| Accurate 4064 | <<locked>> | 88% | 57,421 psi | 88% | 2684 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 57,783 psi | 89% | 2785 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 52,069 psi | 80% | 2808 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 84% | 56,913 psi | 88% | 2713 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 57,914 psi | 89% | 2717 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,317 psi | 85% | 2772 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,535 psi | 85% | 2661 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,435 psi | 88% | 2628 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 57,174 psi | 88% | 2841 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 55,013 psi | 85% | 2769 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 58,378 psi | 90% | 2736 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,201 psi | 85% | 2710 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 58,523 psi | 90% | 2838 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,043 psi | 86% | 2815 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,186 psi | 83% | 2759 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,819 psi | 74% | 2700 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,252 psi | 70% | 2654 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,624 psi | 61% | 2569 fps | 97.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,111 psi | 79% | 2825 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,782 psi | 87% | 2733 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 55,753 psi | 86% | 2707 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,819 psi | 74% | 2700 fps | 96.7% |
| Bofors RP7 | <<locked>> | 92% | 55,230 psi | 85% | 2687 fps | 98.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,884 psi | 88% | 2638 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,405 psi | 85% | 2694 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,347 psi | 87% | 2723 fps | 100% |
| Hodgdon H414 | <<locked>> | 94% | 56,492 psi | 87% | 2785 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 92% | 56,536 psi | 87% | 2746 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 84% | 57,551 psi | 89% | 2723 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 58,726 psi | 90% | 2759 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 57,363 psi | 88% | 2756 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,884 psi | 88% | 2825 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,027 psi | 55% | 1644 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 58,726 psi | 90% | 2723 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 58,015 psi | 89% | 2697 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,522 psi | 88% | 2700 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 57,014 psi | 88% | 2687 fps | 99.2% |
| IMR 4350 | <<locked>> | 96% | 55,927 psi | 86% | 2720 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,029 psi | 88% | 2717 fps | 99.2% |
| IMR 4831 | <<locked>> | 98% | 58,146 psi | 89% | 2776 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 56,652 psi | 87% | 2740 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 54,969 psi | 85% | 2703 fps | 96.1% |
| IMR 8208 XBR | <<locked>> | 82% | 55,535 psi | 85% | 2661 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,217 psi | 88% | 2687 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,057 psi | 86% | 2641 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,493 psi | 88% | 2694 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,913 psi | 88% | 2710 fps | 99.8% |
| Lovex S070 | <<locked>> | 96% | 58,117 psi | 89% | 2749 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,827 psi | 61% | 2487 fps | 97.2% |
| Norma 201 | <<locked>> | 84% | 55,492 psi | 85% | 2657 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,188 psi | 86% | 2654 fps | 100% |
| Norma 203B | <<locked>> | 88% | 58,160 psi | 89% | 2746 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,724 psi | 87% | 2769 fps | 98% |
| Norma MRPᴾ | <<locked>> | 100% | 50,459 psi | 78% | 2779 fps | 98.5% |
| Norma URP | <<locked>> | 96% | 56,550 psi | 87% | 2772 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 55,288 psi | 85% | 2726 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 55,216 psi | 85% | 2772 fps | 99.6% |
| Ramshot TAC | <<locked>> | 82% | 55,825 psi | 86% | 2690 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,782 psi | 86% | 2703 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,608 psi | 56% | 1680 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,318 psi | 87% | 2707 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,130 psi | 86% | 2776 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,782 psi | 86% | 2808 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 57,508 psi | 88% | 2808 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,188 psi | 86% | 2835 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 56,652 psi | 87% | 2638 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,202 psi | 86% | 2657 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,564 psi | 85% | 2700 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 57,000 psi | 88% | 2740 fps | 97.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,229 psi | 82% | 2743 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 92% | 55,230 psi | 85% | 2687 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,913 psi | 88% | 2710 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,217 psi | 88% | 2687 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,493 psi | 88% | 2694 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 58,117 psi | 89% | 2749 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,348 psi | 88% | 2759 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 58,189 psi | 90% | 2720 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,259 psi | 85% | 2687 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,637 psi | 87% | 2592 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,363 psi | 88% | 2592 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,913 psi | 88% | 2667 fps | 99.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,736 psi | 81% | 2736 fps | 97.7% |
| Somchem S335 | <<locked>> | 84% | 56,130 psi | 86% | 2589 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 57,870 psi | 89% | 2707 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,709 psi | 86% | 2697 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 55,434 psi | 85% | 2687 fps | 95.9% |
| Somchem S365 | <<locked>> | 98% | 54,955 psi | 85% | 2769 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,085 psi | 83% | 2723 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 84% | 57,072 psi | 88% | 2572 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,333 psi | 87% | 2618 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,913 psi | 88% | 2638 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,188 psi | 88% | 2674 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,288 psi | 85% | 2717 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 46,528 psi | 72% | 2592 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 82% | 56,130 psi | 86% | 2661 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 58,494 psi | 90% | 2680 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 57,740 psi | 89% | 2772 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,386 psi | 78% | 2723 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 58,755 psi | 90% | 2736 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,449 psi | 87% | 2707 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,753 psi | 87% | 2789 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,611 psi | 62% | 2694 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,448 psi | 85% | 2697 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 50,807 psi | 78% | 2664 fps | 97% |
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% | 54,302 psi | 84% | 2559 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,268 psi | 73% | 2500 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 54,766 psi | 84% | 2648 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,672 psi | 70% | 2497 fps | 96.7% |
| Accurate 3100 | <<locked>> | 90% | 34,026 psi | 52% | 2365 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 44,730 psi | 69% | 2507 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,504 psi | 52% | 2365 fps | 96.9% |
| Accurate High Country | <<locked>> | 98% | 48,602 psi | 75% | 2749 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 50,270 psi | 77% | 2618 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,685 psi | 66% | 2477 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 94% | 45,484 psi | 70% | 2608 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,330 psi | 81% | 2615 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,563 psi | 82% | 2582 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,485 psi | 72% | 2674 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 42,670 psi | 66% | 2556 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,902 psi | 66% | 2503 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,832 psi | 71% | 2562 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,286 psi | 51% | 2375 fps | 97.1% |
| Alliant Reloder-17 | 52.6 gr | 80% | 37,173 psi | 57% | 2490 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 94% | 44,991 psi | 69% | 2602 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 96% | 42,061 psi | 65% | 2592 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 82% | 25,759 psi | 40% | 2195 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 94% | 32,837 psi | 51% | 2402 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 86% | 31,241 psi | 48% | 2408 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,705 psi | 76% | 2628 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 42,772 psi | 66% | 2510 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 42,061 psi | 65% | 2592 fps | 95% |
| Bofors RP7 | <<locked>> | 82% | 40,654 psi | 63% | 2438 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,635 psi | 83% | 2595 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,938 psi | 80% | 2644 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,453 psi | 67% | 2516 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 82% | 38,072 psi | 59% | 2464 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 82% | 41,263 psi | 63% | 2484 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 50,778 psi | 78% | 2625 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,647 psi | 47% | 2277 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,021 psi | 72% | 2608 fps | 100% |
| Hodgdon Superformance | 58.4 gr | 84% | 39,769 psi | 61% | 2526 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,934 psi | 41% | 1467 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,530 psi | 75% | 2579 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,111 psi | 79% | 2605 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,875 psi | 69% | 2510 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,239 psi | 73% | 2533 fps | 97.8% |
| IMR 4350 | <<locked>> | 86% | 40,886 psi | 63% | 2467 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,566 psi | 61% | 2418 fps | 95.8% |
| IMR 4831 | <<locked>> | 80% | 32,460 psi | 50% | 2326 fps | 96.7% |
| IMR 4895 | <<locked>> | 80% | 47,007 psi | 72% | 2592 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 51,532 psi | 79% | 2651 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 52,330 psi | 81% | 2615 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,082 psi | 77% | 2592 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,545 psi | 76% | 2549 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,962 psi | 69% | 2507 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,086 psi | 57% | 2369 fps | 96.6% |
| Lovex S070 | <<locked>> | 82% | 37,608 psi | 58% | 2402 fps | 95.6% |
| Lovex S071 | <<locked>> | 96% | 34,998 psi | 54% | 2388 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 49,197 psi | 76% | 2566 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,763 psi | 77% | 2566 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,208 psi | 70% | 2552 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 43,323 psi | 67% | 2549 fps | 95% |
| Norma MRP | <<locked>> | 92% | 38,551 psi | 59% | 2549 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 33,518 psi | 52% | 2362 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 80% | 45,179 psi | 70% | 2572 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 34,809 psi | 54% | 2402 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 52,185 psi | 80% | 2635 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,112 psi | 80% | 2651 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,325 psi | 42% | 1503 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,555 psi | 67% | 2500 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,979 psi | 75% | 2671 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,537 psi | 61% | 2546 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,141 psi | 51% | 2379 fps | 96.5% |
| ReloadSwiss RS 70 | 53.5 gr | 80% | 32,764 psi | 50% | 2382 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 53,359 psi | 82% | 2592 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,905 psi | 72% | 2523 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,263 psi | 62% | 2457 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 96% | 50,386 psi | 78% | 2641 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 94% | 43,758 psi | 67% | 2582 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 82% | 40,654 psi | 63% | 2438 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,086 psi | 57% | 2369 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,082 psi | 77% | 2592 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,962 psi | 69% | 2507 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,608 psi | 58% | 2402 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,249 psi | 63% | 2507 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,821 psi | 78% | 2615 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,617 psi | 75% | 2589 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,314 psi | 77% | 2507 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,293 psi | 65% | 2385 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,580 psi | 59% | 2365 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,323 psi | 67% | 2579 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 49,879 psi | 77% | 2507 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,589 psi | 78% | 2608 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,915 psi | 63% | 2461 fps | 99.7% |
| Somchem S361 | <<locked>> | 96% | 51,692 psi | 80% | 2631 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 30,139 psi | 46% | 2320 fps | 98.8% |
| Somchem S385 | <<locked>> | 90% | 39,146 psi | 60% | 2467 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 50,792 psi | 78% | 2493 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,905 psi | 72% | 2493 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,021 psi | 72% | 2503 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,870 psi | 60% | 2395 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 34,983 psi | 54% | 2365 fps | 97.2% |
| Vihtavuori N165 | <<locked>> | 96% | 40,872 psi | 63% | 2490 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 52,504 psi | 81% | 2612 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,469 psi | 70% | 2500 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,490 psi | 53% | 2365 fps | 96.9% |
| Vihtavuori N555 | <<locked>> | 82% | 27,833 psi | 43% | 2264 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,345 psi | 53% | 2339 fps | 98.9% |
| Winchester 748 | <<locked>> | 80% | 52,837 psi | 81% | 2657 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 38,072 psi | 59% | 2464 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 86% | 25,744 psi | 40% | 2267 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,399 psi | 74% | 2595 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 44,179 psi | 68% | 2552 fps | 95.4% |
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 109 powders for .300 Rem. SA Ultra Mag. loaded with the .311 | 190gr | Winchester Silvertip. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,841 fps; across all powders the maximum-charge window runs from 1,644 fps to 2,841 fps. Accurate 3100 gives the best case fill at 100 %, and 109 of the 109 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.311" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2209 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 Rem. SA Ultra Mag. with the .311 | 190gr | Winchester Silvertip 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.