Load Specifications
Bullet Manufacturer:Hornady
Bullet Weight:250 gr
Bullet Diameter:0.358"
Bullet Length:<<locked>>
Caliber:.358 STA load data
Case Length (l3):2.847"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:105 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:26"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:6.0
Load data in caliber .358 STA with .358 | 250gr | Hornady InterLock RN bullet and 110 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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 56,898 psi | 88% | 2654 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 56,304 psi | 87% | 2684 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 57,667 psi | 89% | 2749 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 58,146 psi | 89% | 2753 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,934 psi | 72% | 2677 fps | 98.7% |
| Accurate 4064 | <<locked>> | 88% | 56,521 psi | 87% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 56,681 psi | 87% | 2838 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 51,111 psi | 79% | 2864 fps | 96.5% |
| ADI AR 2206H | <<locked>> | 84% | 56,014 psi | 86% | 2766 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,956 psi | 88% | 2769 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,273 psi | 83% | 2822 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 58,334 psi | 90% | 2762 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,246 psi | 87% | 2680 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,144 psi | 86% | 2897 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 54,143 psi | 83% | 2822 fps | 97.8% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 54,143 psi | 83% | 2822 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 57,421 psi | 88% | 2789 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 58,001 psi | 89% | 2815 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 57,363 psi | 88% | 2890 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 55,042 psi | 85% | 2867 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,330 psi | 82% | 2812 fps | 97.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 46,905 psi | 72% | 2753 fps | 96.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,150 psi | 68% | 2700 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,827 psi | 60% | 2615 fps | 97.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,951 psi | 77% | 2877 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,825 psi | 86% | 2785 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 58,407 psi | 90% | 2808 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 46,905 psi | 72% | 2753 fps | 96.6% |
| Bofors RP7 | <<locked>> | 94% | 57,914 psi | 89% | 2789 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,202 psi | 86% | 2690 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 58,131 psi | 89% | 2795 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,347 psi | 85% | 2776 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 55,521 psi | 85% | 2838 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 92% | 55,637 psi | 86% | 2795 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 84% | 56,637 psi | 87% | 2776 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 57,508 psi | 88% | 2812 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,405 psi | 87% | 2812 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,811 psi | 86% | 2877 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,013 psi | 55% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 57,841 psi | 89% | 2779 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,101 psi | 88% | 2749 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,594 psi | 87% | 2753 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,130 psi | 86% | 2740 fps | 99.1% |
| IMR 4350 | <<locked>> | 98% | 58,436 psi | 90% | 2818 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,333 psi | 87% | 2769 fps | 99.1% |
| IMR 4831 | <<locked>> | 98% | 56,913 psi | 88% | 2825 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 55,883 psi | 86% | 2792 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 54,012 psi | 83% | 2753 fps | 96% |
| IMR 8208 XBR | <<locked>> | 84% | 58,334 psi | 90% | 2762 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,246 psi | 87% | 2740 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 58,566 psi | 90% | 2740 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,710 psi | 87% | 2746 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,796 psi | 86% | 2759 fps | 99.7% |
| Lovex S070 | <<locked>> | 96% | 57,029 psi | 88% | 2802 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,015 psi | 60% | 2536 fps | 97.1% |
| Norma 201 | <<locked>> | 86% | 58,247 psi | 90% | 2756 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,303 psi | 85% | 2707 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,232 psi | 88% | 2802 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,535 psi | 85% | 2818 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 49,617 psi | 76% | 2835 fps | 98.5% |
| Norma URP | <<locked>> | 96% | 55,390 psi | 85% | 2822 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 58,073 psi | 89% | 2831 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 57,798 psi | 89% | 2877 fps | 99.8% |
| Ramshot TAC | <<locked>> | 84% | 58,639 psi | 90% | 2795 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 84% | 58,566 psi | 90% | 2805 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,680 psi | 56% | 1722 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,477 psi | 85% | 2759 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,129 psi | 85% | 2831 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 58,581 psi | 90% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 56,376 psi | 87% | 2861 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,274 psi | 85% | 2890 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 55,666 psi | 86% | 2687 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 58,784 psi | 90% | 2756 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 58,204 psi | 90% | 2799 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 56,217 psi | 86% | 2792 fps | 97% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,199 psi | 80% | 2792 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 94% | 57,914 psi | 89% | 2789 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,796 psi | 86% | 2759 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,246 psi | 87% | 2740 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,710 psi | 87% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 57,029 psi | 88% | 2802 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 56,376 psi | 87% | 2815 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 57,334 psi | 88% | 2776 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 58,030 psi | 89% | 2789 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,912 psi | 86% | 2644 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,362 psi | 87% | 2644 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,028 psi | 86% | 2720 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,721 psi | 80% | 2789 fps | 97.6% |
| Somchem S335 | <<locked>> | 84% | 55,376 psi | 85% | 2641 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,869 psi | 87% | 2759 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 58,349 psi | 90% | 2799 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 58,189 psi | 90% | 2789 fps | 96.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 57,580 psi | 89% | 2871 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,040 psi | 82% | 2772 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 84% | 56,304 psi | 87% | 2625 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,390 psi | 85% | 2671 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,927 psi | 86% | 2687 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,144 psi | 86% | 2723 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,870 psi | 89% | 2815 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,701 psi | 70% | 2641 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 82% | 55,361 psi | 85% | 2713 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 57,537 psi | 89% | 2733 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,884 psi | 88% | 2825 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,226 psi | 76% | 2772 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,754 psi | 89% | 2789 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,724 psi | 86% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,709 psi | 86% | 2841 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,639 psi | 61% | 2736 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 58,189 psi | 90% | 2799 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,647 psi | 76% | 2710 fps | 96.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 53,374 psi | 82% | 2608 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,383 psi | 71% | 2552 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,911 psi | 83% | 2700 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,947 psi | 69% | 2546 fps | 96.6% |
| Accurate 3100 | <<locked>> | 90% | 33,388 psi | 51% | 2415 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 43,888 psi | 68% | 2556 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,735 psi | 50% | 2411 fps | 96.9% |
| Accurate High Country | <<locked>> | 98% | 47,630 psi | 73% | 2802 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 49,429 psi | 76% | 2667 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,018 psi | 65% | 2526 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 94% | 44,875 psi | 69% | 2661 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,532 psi | 79% | 2667 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,794 psi | 81% | 2638 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,426 psi | 70% | 2723 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 44,672 psi | 69% | 2657 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 44,672 psi | 69% | 2657 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,090 psi | 65% | 2552 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,049 psi | 69% | 2615 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,634 psi | 50% | 2421 fps | 97% |
| Alliant Reloder-17 | 71.2 gr | 80% | 36,506 psi | 56% | 2543 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 94% | 44,150 psi | 68% | 2651 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 43,976 psi | 68% | 2697 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 82% | 25,309 psi | 39% | 2238 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,272 psi | 53% | 2503 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 86% | 30,603 psi | 47% | 2454 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,965 psi | 75% | 2680 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 41,974 psi | 65% | 2559 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 43,976 psi | 68% | 2697 fps | 95.8% |
| Bofors RP7 | <<locked>> | 82% | 39,943 psi | 61% | 2484 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,026 psi | 82% | 2648 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,894 psi | 78% | 2694 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,656 psi | 66% | 2566 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 82% | 37,260 psi | 57% | 2510 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 84% | 43,265 psi | 67% | 2585 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 49,937 psi | 77% | 2677 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,153 psi | 46% | 2326 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,224 psi | 71% | 2661 fps | 100% |
| Hodgdon Superformance | 79 gr | 84% | 38,986 psi | 60% | 2575 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,905 psi | 41% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,848 psi | 74% | 2631 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 50,169 psi | 77% | 2657 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,179 psi | 68% | 2559 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,601 psi | 72% | 2585 fps | 97.7% |
| IMR 4350 | <<locked>> | 86% | 40,277 psi | 62% | 2516 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,972 psi | 60% | 2464 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 31,807 psi | 49% | 2372 fps | 96.6% |
| IMR 4895 | <<locked>> | 80% | 46,166 psi | 71% | 2641 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 50,734 psi | 78% | 2700 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 51,532 psi | 79% | 2667 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,269 psi | 76% | 2644 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,994 psi | 75% | 2598 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,353 psi | 68% | 2559 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,419 psi | 56% | 2418 fps | 96.5% |
| Lovex S070 | <<locked>> | 82% | 36,854 psi | 57% | 2444 fps | 95.5% |
| Lovex S071 | <<locked>> | 96% | 34,345 psi | 53% | 2434 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 48,385 psi | 74% | 2618 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,921 psi | 75% | 2618 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,396 psi | 68% | 2602 fps | 99.9% |
| Norma 204 | <<locked>> | 90% | 45,498 psi | 70% | 2654 fps | 95.8% |
| Norma MRP | <<locked>> | 92% | 37,869 psi | 58% | 2598 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 32,967 psi | 51% | 2411 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 80% | 44,208 psi | 68% | 2618 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 34,243 psi | 53% | 2451 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 51,401 psi | 79% | 2687 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,387 psi | 79% | 2703 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,267 psi | 42% | 1535 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,786 psi | 66% | 2549 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,095 psi | 74% | 2723 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,856 psi | 60% | 2598 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,343 psi | 50% | 2425 fps | 96.3% |
| ReloadSwiss RS 70 | 72.3 gr | 80% | 32,082 psi | 49% | 2425 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 52,504 psi | 81% | 2641 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,151 psi | 71% | 2572 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,653 psi | 61% | 2510 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 96% | 49,400 psi | 76% | 2687 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 94% | 42,931 psi | 66% | 2631 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 82% | 39,943 psi | 61% | 2484 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,419 psi | 56% | 2418 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,269 psi | 76% | 2644 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,353 psi | 68% | 2559 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 36,854 psi | 57% | 2444 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,509 psi | 62% | 2556 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,995 psi | 77% | 2667 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,863 psi | 74% | 2641 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,443 psi | 76% | 2556 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,539 psi | 64% | 2431 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,971 psi | 58% | 2411 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 42,525 psi | 65% | 2628 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 49,110 psi | 76% | 2556 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,835 psi | 77% | 2657 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,161 psi | 62% | 2510 fps | 99.7% |
| Somchem S361 | <<locked>> | 96% | 50,923 psi | 78% | 2680 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 29,515 psi | 45% | 2369 fps | 98.8% |
| Somchem S385 | <<locked>> | 90% | 38,232 psi | 59% | 2510 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 49,893 psi | 77% | 2543 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,992 psi | 71% | 2539 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,398 psi | 71% | 2552 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,319 psi | 59% | 2444 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 34,258 psi | 53% | 2411 fps | 97.1% |
| Vihtavuori N165 | <<locked>> | 96% | 40,161 psi | 62% | 2539 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 51,721 psi | 80% | 2664 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,701 psi | 69% | 2549 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,837 psi | 52% | 2415 fps | 96.8% |
| Vihtavuori N555 | <<locked>> | 82% | 27,209 psi | 42% | 2310 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,794 psi | 52% | 2385 fps | 98.9% |
| Winchester 748 | <<locked>> | 80% | 52,083 psi | 80% | 2713 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 37,391 psi | 58% | 2513 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 86% | 25,295 psi | 39% | 2310 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,645 psi | 73% | 2648 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 43,250 psi | 67% | 2598 fps | 95.2% |
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 110 powders for .358 STA loaded with the .358 | 250gr | Hornady InterLock RN. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,913 fps. Accurate 3100 gives the best case fill at 100 %, and 110 of the 110 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 250.0 gr projectile in 0.358" 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 .358 STA with the .358 | 250gr | Hornady InterLock 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.