Load Specifications
Load data in caliber .356 Win. with .358 | 200gr | NorthFork Bonded Core bullet and 22 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2207, ReloadSwiss RS 36 and Norma 200.
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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 92% | 46,557 psi | 90% | 2231 fps | 98.2% |
| Accurate LT-30 | <<locked>> | 98% | 47,007 psi | 90% | 2221 fps | 95.7% |
| ADI AR 2205 | <<locked>> | 82% | 44,918 psi | 86% | 2119 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 44,396 psi | 85% | 2280 fps | 100% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 33,185 psi | 64% | 2136 fps | 95.9% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 41,118 psi | 79% | 2251 fps | 97.5% |
| Alliant Reloder-7 | <<locked>> | 94% | 44,135 psi | 85% | 2238 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,733 psi | 57% | 1362 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 44,889 psi | 86% | 2254 fps | 98.8% |
| IMR 4227 | <<locked>> | 90% | 46,615 psi | 90% | 2224 fps | 99.7% |
| Lovex D060 | <<locked>> | 82% | 45,107 psi | 87% | 2215 fps | 98.7% |
| Lovex D063 | <<locked>> | 82% | 44,817 psi | 86% | 2192 fps | 99.1% |
| Lovex S053 | <<locked>> | 90% | 44,976 psi | 86% | 2195 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 46,717 psi | 90% | 2326 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,457 psi | 57% | 1394 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 45,687 psi | 88% | 2251 fps | 99.6% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 45,107 psi | 87% | 2215 fps | 98.7% |
| Shooters World SOCOM | <<locked>> | 82% | 44,817 psi | 86% | 2192 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 46,485 psi | 89% | 2093 fps | 100% |
| Vihtavuori N110 | <<locked>> | 84% | 44,773 psi | 86% | 2126 fps | 100% |
| Vihtavuori N120 | <<locked>> | 96% | 44,657 psi | 86% | 2247 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 40,248 psi | 77% | 2178 fps | 96.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 33,692 psi | 65% | 2018 fps | 95% |
| Accurate LT-30 | <<locked>> | 96% | 44,338 psi | 85% | 2182 fps | 95% |
| ADI AR 2205 | <<locked>> | 80% | 42,337 psi | 81% | 2083 fps | 100% |
| ADI AR 2207 | 28 gr | 80% | 27,238 psi | 52% | 1962 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 98% | 31,357 psi | 60% | 2093 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 94% | 34,287 psi | 66% | 2129 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 84% | 32,663 psi | 63% | 2034 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,828 psi | 42% | 1214 fps | 100% |
| IMR 4198 | <<locked>> | 88% | 32,010 psi | 62% | 2021 fps | 95.5% |
| IMR 4227 | <<locked>> | 80% | 34,708 psi | 67% | 2031 fps | 98% |
| Lovex D060 | <<locked>> | 80% | 42,540 psi | 82% | 2175 fps | 98.3% |
| Lovex D063 | <<locked>> | 80% | 42,250 psi | 81% | 2152 fps | 98.8% |
| Lovex S053 | <<locked>> | 80% | 34,011 psi | 65% | 2018 fps | 99.8% |
| Norma 200 | 31.5 gr | 86% | 30,356 psi | 58% | 2037 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,495 psi | 41% | 1243 fps | 100% |
| ReloadSwiss RS 36 | 29.1 gr | 80% | 33,446 psi | 64% | 2047 fps | 97.6% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 42,540 psi | 82% | 2175 fps | 98.3% |
| Shooters World SOCOM | <<locked>> | 80% | 42,250 psi | 81% | 2152 fps | 98.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 32,126 psi | 62% | 1886 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 40,190 psi | 77% | 2064 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 27,601 psi | 53% | 1946 fps | 98.3% |
| Vihtavuori N130 | <<locked>> | 96% | 35,766 psi | 69% | 2100 fps | 95.6% |
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 22 powders for .356 Win. loaded with the .358 | 200gr | NorthFork Bonded Core. Norma 200 delivers the highest muzzle velocity at 2,326 fps; across all powders the maximum-charge window runs from 1,362 fps to 2,326 fps. Alliant AR-Comp gives the best case fill at 100 %, and 22 of the 22 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (359 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. Alliant AR-Comp, Alliant Reloder-10x, 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. ADI AR 2207, ReloadSwiss RS 36, Norma 200 rank at the top here: for .356 Win. with the .358 | 200gr | NorthFork Bonded Core 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.