Load Specifications
Bullet Manufacturer:Hammer
Bullet Weight:215 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:1:13.5
Load data in caliber .358 STA with .358 | 215gr | Hammer Hammer HH bullet and 107 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.
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>> | 88% | 58,276 psi | 90% | 2864 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,985 psi | 88% | 2897 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,521 psi | 87% | 2887 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,998 psi | 85% | 2907 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,391 psi | 87% | 2881 fps | 96.7% |
| Accurate 4064 | <<locked>> | 94% | 56,376 psi | 87% | 2933 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 52,141 psi | 80% | 2956 fps | 99.2% |
| Accurate LT-30 | <<locked>> | 82% | 57,232 psi | 88% | 2805 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 57,653 psi | 89% | 2831 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 57,363 psi | 88% | 2969 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 96% | 58,392 psi | 90% | 2966 fps | 99.8% |
| ADI AR 2219 | <<locked>> | 82% | 58,566 psi | 90% | 2933 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,507 psi | 87% | 2920 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 56,985 psi | 88% | 2894 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 58,392 psi | 90% | 3031 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 57,043 psi | 88% | 3091 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 58,146 psi | 89% | 2986 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 57,957 psi | 89% | 2867 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 58,798 psi | 90% | 3012 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,604 psi | 78% | 2959 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 98% | 55,288 psi | 85% | 3058 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,042 psi | 55% | 2684 fps | 97.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,827 psi | 61% | 2828 fps | 96.2% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,507 psi | 87% | 2802 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 57,305 psi | 88% | 2986 fps | 99.6% |
| Bofors RP3 | <<locked>> | 96% | 58,755 psi | 90% | 3002 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 55,593 psi | 86% | 2917 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 58,349 psi | 90% | 2900 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,709 psi | 86% | 2953 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 57,769 psi | 89% | 3054 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 84% | 57,159 psi | 88% | 2913 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 58,407 psi | 90% | 2943 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 56,217 psi | 86% | 2963 fps | 99.2% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 55,405 psi | 85% | 3009 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 98% | 56,507 psi | 87% | 2969 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 90% | 57,928 psi | 89% | 2979 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,775 psi | 72% | 2835 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 57,174 psi | 88% | 3012 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 56,724 psi | 87% | 3045 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,143 psi | 54% | 1772 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,782 psi | 86% | 2930 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 57,711 psi | 89% | 2959 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,856 psi | 89% | 2946 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 92% | 58,146 psi | 89% | 2927 fps | 97.8% |
| IMR 4198 | <<locked>> | 84% | 57,812 psi | 89% | 2822 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,098 psi | 80% | 2884 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 98% | 57,566 psi | 89% | 2949 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,443 psi | 76% | 2894 fps | 98.9% |
| IMR 4895 | <<locked>> | 92% | 56,637 psi | 87% | 2992 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 56,507 psi | 87% | 2920 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 56,811 psi | 87% | 2907 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 57,029 psi | 88% | 2943 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 57,014 psi | 88% | 2894 fps | 99.9% |
| Lovex S062 | <<locked>> | 94% | 57,522 psi | 88% | 2943 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,550 psi | 87% | 2940 fps | 98.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,766 psi | 83% | 2917 fps | 97.4% |
| Norma 201 | <<locked>> | 90% | 55,985 psi | 86% | 2910 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,521 psi | 87% | 2913 fps | 100% |
| Norma 203B | <<locked>> | 94% | 57,943 psi | 89% | 2995 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 51,343 psi | 79% | 2943 fps | 99% |
| Ramshot Big Game | <<locked>> | 94% | 58,726 psi | 90% | 3025 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,430 psi | 78% | 2933 fps | 97.5% |
| Ramshot TAC | <<locked>> | 88% | 56,971 psi | 88% | 2940 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 88% | 56,347 psi | 87% | 2956 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 86% | 57,566 psi | 89% | 2923 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,505 psi | 55% | 1811 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,028 psi | 86% | 2900 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 56,710 psi | 87% | 2943 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,622 psi | 86% | 3028 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,100 psi | 85% | 3061 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,605 psi | 79% | 2976 fps | 98.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,069 psi | 80% | 3002 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 88% | 57,087 psi | 88% | 2894 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,594 psi | 87% | 2910 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 58,581 psi | 90% | 2992 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 55,593 psi | 86% | 2917 fps | 96.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,550 psi | 87% | 2940 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 90% | 57,029 psi | 88% | 2943 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 57,522 psi | 88% | 2943 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,766 psi | 83% | 2917 fps | 97.4% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,811 psi | 86% | 2874 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 56,666 psi | 87% | 3005 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,361 psi | 85% | 2844 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,201 psi | 85% | 2913 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,898 psi | 86% | 2940 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 57,972 psi | 89% | 2851 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 57,740 psi | 89% | 2844 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 57,363 psi | 88% | 2894 fps | 97.6% |
| Somchem S321 | <<locked>> | 86% | 57,885 psi | 89% | 2956 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 56,985 psi | 88% | 2848 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 58,581 psi | 90% | 2959 fps | 100% |
| Somchem S355 | <<locked>> | 98% | 58,798 psi | 90% | 2989 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,006 psi | 71% | 2894 fps | 100% |
| Vihtavuori N130 | <<locked>> | 86% | 57,711 psi | 89% | 2815 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,986 psi | 89% | 2835 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,956 psi | 86% | 2874 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 57,072 psi | 88% | 2890 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,971 psi | 88% | 2920 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,099 psi | 83% | 2940 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 88% | 57,174 psi | 88% | 2920 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 58,784 psi | 90% | 2936 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,272 psi | 82% | 2949 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,624 psi | 59% | 2759 fps | 97.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,955 psi | 85% | 2923 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 56,811 psi | 87% | 2969 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,608 psi | 86% | 3009 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,550 psi | 85% | 2946 fps | 100% |
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% | 45,600 psi | 70% | 2680 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,792 psi | 77% | 2792 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,189 psi | 59% | 2598 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,933 psi | 69% | 2749 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 49,574 psi | 76% | 2772 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 36,129 psi | 56% | 2589 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 34,330 psi | 53% | 2612 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 53,708 psi | 83% | 2756 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 54,114 psi | 83% | 2785 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,930 psi | 65% | 2703 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 35,665 psi | 55% | 2549 fps | 96.1% |
| ADI AR 2219 | <<locked>> | 80% | 54,868 psi | 84% | 2884 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,990 psi | 68% | 2717 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 43,700 psi | 67% | 2707 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,242 psi | 79% | 2923 fps | 99.8% |
| Alliant Power Pro 2000-MR | 68.3 gr | 80% | 37,942 psi | 58% | 2720 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,983 psi | 54% | 2569 fps | 97.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,343 psi | 79% | 2779 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,753 psi | 58% | 2635 fps | 97% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,114 psi | 54% | 2628 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 82% | 32,300 psi | 50% | 2585 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,821 psi | 49% | 2572 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 98% | 37,188 psi | 57% | 2762 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,098 psi | 82% | 2756 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,017 psi | 63% | 2703 fps | 97.2% |
| Bofors RP3 | <<locked>> | 80% | 34,534 psi | 53% | 2572 fps | 97.6% |
| Bofors RP7 | <<locked>> | 94% | 48,965 psi | 75% | 2805 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,803 psi | 70% | 2707 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,525 psi | 65% | 2736 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,760 psi | 72% | 2877 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 80% | 50,169 psi | 77% | 2815 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,155 psi | 79% | 2841 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 37,913 psi | 58% | 2628 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 94% | 45,440 psi | 70% | 2838 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 96% | 52,895 psi | 81% | 2913 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 42,279 psi | 65% | 2717 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,139 psi | 46% | 2467 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,058 psi | 59% | 2680 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 96% | 49,182 psi | 76% | 2920 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,136 psi | 40% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,640 psi | 63% | 2667 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 41,539 psi | 64% | 2713 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,420 psi | 58% | 2582 fps | 96.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,440 psi | 70% | 2713 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 51,590 psi | 79% | 2736 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 48,921 psi | 75% | 2828 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 47,863 psi | 74% | 2789 fps | 95.7% |
| IMR 4831 | <<locked>> | 90% | 35,563 psi | 55% | 2621 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 38,624 psi | 59% | 2667 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 80% | 43,990 psi | 68% | 2717 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 49,676 psi | 76% | 2802 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,669 psi | 63% | 2680 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 42,148 psi | 65% | 2641 fps | 98.5% |
| Lovex S062 | <<locked>> | 80% | 37,173 psi | 57% | 2589 fps | 98.5% |
| Lovex S065 | <<locked>> | 88% | 39,233 psi | 60% | 2631 fps | 95% |
| Lovex S070 | <<locked>> | 94% | 44,701 psi | 69% | 2759 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 41,089 psi | 63% | 2657 fps | 99.2% |
| Norma 202 | <<locked>> | 80% | 41,191 psi | 63% | 2667 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,115 psi | 57% | 2625 fps | 97.3% |
| Norma URP | <<locked>> | 88% | 34,867 psi | 54% | 2615 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 36,579 psi | 56% | 2635 fps | 97% |
| Ramshot Hunter | <<locked>> | 94% | 41,640 psi | 64% | 2766 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 43,859 psi | 67% | 2713 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,221 psi | 66% | 2736 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,471 psi | 73% | 2762 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,382 psi | 41% | 1621 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,211 psi | 76% | 2799 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,903 psi | 68% | 2723 fps | 95.5% |
| ReloadSwiss RS 52 | 66.2 gr | 80% | 39,247 psi | 60% | 2736 fps | 97.4% |
| ReloadSwiss RS 60 | 67.2 gr | 80% | 32,198 psi | 50% | 2595 fps | 98.4% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,593 psi | 56% | 2684 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,784 psi | 61% | 2753 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 45,034 psi | 69% | 2707 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,131 psi | 60% | 2608 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 32,489 psi | 50% | 2516 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 94% | 48,965 psi | 75% | 2805 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 39,233 psi | 60% | 2631 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,669 psi | 63% | 2680 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 37,173 psi | 57% | 2589 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 94% | 44,701 psi | 69% | 2759 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,185 psi | 80% | 2818 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,504 psi | 52% | 2562 fps | 96% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,083 psi | 80% | 2799 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,105 psi | 65% | 2687 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,437 psi | 62% | 2671 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,554 psi | 65% | 2615 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,186 psi | 54% | 2480 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 47,079 psi | 72% | 2733 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 47,442 psi | 73% | 2795 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 42,163 psi | 65% | 2618 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,785 psi | 64% | 2687 fps | 98.3% |
| Somchem S355 | <<locked>> | 80% | 33,460 psi | 51% | 2523 fps | 96.7% |
| Somchem S365 | <<locked>> | 84% | 27,427 psi | 42% | 2448 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 48,138 psi | 74% | 2680 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,772 psi | 66% | 2612 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,305 psi | 59% | 2595 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,059 psi | 60% | 2602 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,749 psi | 49% | 2461 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 36,579 psi | 56% | 2618 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 44,019 psi | 68% | 2710 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 37,637 psi | 58% | 2592 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 35,839 psi | 55% | 2618 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 96% | 33,982 psi | 52% | 2651 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,298 psi | 47% | 2431 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 43,352 psi | 67% | 2756 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 45,614 psi | 70% | 2838 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,798 psi | 61% | 2674 fps | 98.5% |
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 117 powders for .358 STA loaded with the .358 | 215gr | Hammer Hammer HH. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,091 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,091 fps. Accurate 3100 gives the best case fill at 100 %, and 117 of the 117 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. The 215.0 gr projectile in 0.358" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, 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 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .358 STA with the .358 | 215gr | Hammer Hammer HH they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.