Load Specifications
Load data in caliber .358 Win. with .356 | 145gr | LOS HP bullet and 23 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 36, Shooters World Buffalo Rifle and Accurate 1680.
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.
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Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 98% | 51,808 psi | 88% | 2900 fps | 98.1% |
| Accurate 5744 | <<locked>> | 84% | 52,199 psi | 89% | 2943 fps | 98.9% |
| Accurate No. 11 FS | <<locked>> | 86% | 50,966 psi | 87% | 2881 fps | 100% |
| ADI AR 2205 | <<locked>> | 90% | 52,518 psi | 89% | 2815 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 44,657 psi | 76% | 2900 fps | 99.8% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 48,022 psi | 82% | 2900 fps | 98.2% |
| Hodgdon LilGun | <<locked>> | 82% | 52,127 psi | 89% | 2920 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,631 psi | 49% | 1736 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 40,683 psi | 69% | 2766 fps | 97% |
| IMR 4227 | <<locked>> | 96% | 50,821 psi | 87% | 2890 fps | 99.6% |
| Lovex D060 | <<locked>> | 90% | 52,533 psi | 89% | 2949 fps | 99% |
| Lovex D063 | <<locked>> | 86% | 52,547 psi | 89% | 2927 fps | 99% |
| Lovex S040 | <<locked>> | 82% | 51,198 psi | 87% | 2782 fps | 100% |
| Lovex S053 | <<locked>> | 98% | 51,111 psi | 87% | 2890 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 41,408 psi | 70% | 2848 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,065 psi | 48% | 1778 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 98% | 52,475 psi | 89% | 2966 fps | 99.7% |
| Shooters World Blackout | <<locked>> | 86% | 52,547 psi | 89% | 2927 fps | 99% |
| Shooters World Buffalo Rifle | <<locked>> | 90% | 52,533 psi | 89% | 2949 fps | 99% |
| Shooters World SOCOM | <<locked>> | 88% | 50,111 psi | 85% | 2867 fps | 99.1% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 49,559 psi | 84% | 2720 fps | 100% |
| Vihtavuori N110 | <<locked>> | 92% | 51,198 psi | 87% | 2818 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 44,933 psi | 76% | 2861 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 1680 | 40.7 gr | 88% | 37,304 psi | 64% | 2641 fps | 95% |
| Accurate 5744 | <<locked>> | 80% | 45,992 psi | 78% | 2835 fps | 98% |
| Accurate No. 11 FS | <<locked>> | 80% | 42,018 psi | 72% | 2733 fps | 99.5% |
| ADI AR 2205 | <<locked>> | 80% | 38,957 psi | 66% | 2592 fps | 99.9% |
| ADI AR 2207 | <<locked>> | 82% | 25,933 psi | 44% | 2464 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 90% | 35,331 psi | 60% | 2654 fps | 95.3% |
| Hodgdon LilGun | <<locked>> | 80% | 48,805 psi | 83% | 2874 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,827 psi | 35% | 1552 fps | 100% |
| IMR 4198 | <<locked>> | 94% | 34,432 psi | 59% | 2625 fps | 95% |
| IMR 4227 | <<locked>> | 80% | 31,444 psi | 54% | 2507 fps | 96% |
| Lovex D060 | <<locked>> | 80% | 39,073 psi | 67% | 2690 fps | 96.5% |
| Lovex D063 | <<locked>> | 80% | 42,917 psi | 73% | 2759 fps | 97.6% |
| Lovex S040 | <<locked>> | 80% | 48,283 psi | 82% | 2736 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 30,632 psi | 52% | 2500 fps | 98.8% |
| Norma 200 | <<locked>> | 94% | 34,229 psi | 58% | 2694 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,552 psi | 35% | 1591 fps | 100% |
| ReloadSwiss RS 36 | 34.5 gr | 80% | 30,211 psi | 51% | 2523 fps | 95.4% |
| Shooters World Blackout | <<locked>> | 80% | 42,917 psi | 73% | 2759 fps | 97.6% |
| Shooters World Buffalo Rifle | 33.1 gr | 80% | 39,073 psi | 67% | 2690 fps | 96.5% |
| Shooters World SOCOM | <<locked>> | 80% | 38,435 psi | 65% | 2657 fps | 97.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 29,124 psi | 50% | 2362 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 36,303 psi | 62% | 2575 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 24,714 psi | 42% | 2392 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 23 powders for .358 Win. loaded with the .356 | 145gr | LOS HP. ReloadSwiss RS 36 delivers the highest muzzle velocity at 2,966 fps; across all powders the maximum-charge window runs from 1,736 fps to 2,966 fps. ADI AR 2207 gives the best case fill at 100 %, and 23 of the 23 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 48–89 %, leaving at least 11 % headroom. ADI AR 2207, Alliant Reloder-7, Hodgdon TrailBoss 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 36, Shooters World Buffalo Rifle, Accurate 1680 rank at the top here: for .358 Win. with the .356 | 145gr | LOS HP 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.