Load Specifications
Load data in caliber .356 Win. with .358 | 225gr | Swift A-Frame bullet and 25 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma 200, ADI AR 2207 and ReloadSwiss RS 36.
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>> | 90% | 46,151 psi | 89% | 2080 fps | 98.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 37,536 psi | 72% | 2034 fps | 96.4% |
| Accurate LT-30 | <<locked>> | 96% | 46,876 psi | 90% | 2073 fps | 96.8% |
| ADI AR 2205 | <<locked>> | 82% | 46,905 psi | 90% | 1995 fps | 100% |
| ADI AR 2207 | <<locked>> | 94% | 44,382 psi | 85% | 2119 fps | 100% |
| ADI AR 2219 | <<locked>> | 98% | 45,992 psi | 88% | 2172 fps | 96.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 35,273 psi | 68% | 2047 fps | 98.1% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 44,179 psi | 85% | 2146 fps | 98.9% |
| Alliant Reloder-7 | <<locked>> | 94% | 46,760 psi | 90% | 2123 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 46,992 psi | 90% | 2103 fps | 97.1% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 43,976 psi | 85% | 2142 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 92% | 45,977 psi | 88% | 2073 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,487 psi | 59% | 1270 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 44,512 psi | 86% | 2100 fps | 99.4% |
| IMR 4227 | <<locked>> | 88% | 46,354 psi | 89% | 2067 fps | 100% |
| Lovex S053 | <<locked>> | 88% | 44,744 psi | 86% | 2034 fps | 100% |
| Norma 200 | <<locked>> | 98% | 46,992 psi | 90% | 2172 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,965 psi | 58% | 1299 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 45,223 psi | 87% | 2090 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 46,180 psi | 89% | 1936 fps | 100% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 45,484 psi | 87% | 2142 fps | 97.4% |
| Vihtavuori N110 | <<locked>> | 82% | 44,541 psi | 86% | 1969 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 44,585 psi | 86% | 2090 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 42,656 psi | 82% | 2070 fps | 98.3% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 37,086 psi | 71% | 1985 fps | 95.8% |
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>> | 80% | 33,518 psi | 64% | 1883 fps | 96.2% |
| Accurate 2015 | <<locked>> | 96% | 33,373 psi | 64% | 1962 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 92% | 41,510 psi | 80% | 1998 fps | 95.6% |
| ADI AR 2205 | <<locked>> | 80% | 44,121 psi | 85% | 1959 fps | 100% |
| ADI AR 2207 | 26.8 gr | 80% | 29,109 psi | 56% | 1870 fps | 98.7% |
| ADI AR 2219 | <<locked>> | 96% | 43,265 psi | 83% | 2133 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 92% | 27,775 psi | 53% | 1883 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 88% | 30,589 psi | 59% | 1916 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 30,748 psi | 59% | 1864 fps | 96.1% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 38,928 psi | 75% | 1988 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 98% | 41,394 psi | 80% | 2103 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 90% | 43,265 psi | 83% | 2034 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,104 psi | 43% | 1125 fps | 100% |
| IMR 4198 | <<locked>> | 82% | 28,572 psi | 55% | 1814 fps | 95.4% |
| IMR 4227 | <<locked>> | 80% | 36,622 psi | 70% | 1926 fps | 99.2% |
| Lovex S053 | <<locked>> | 80% | 35,839 psi | 69% | 1906 fps | 100% |
| Norma 200 | 28 gr | 80% | 27,006 psi | 52% | 1827 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,843 psi | 42% | 1155 fps | 100% |
| ReloadSwiss RS 36 | 27.8 gr | 80% | 35,346 psi | 68% | 1942 fps | 98.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 33,808 psi | 65% | 1775 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 38,189 psi | 73% | 2031 fps | 95.5% |
| Vihtavuori N110 | <<locked>> | 80% | 42,076 psi | 81% | 1936 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 29,414 psi | 57% | 1850 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 90% | 31,952 psi | 61% | 1893 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 98% | 35,259 psi | 68% | 1952 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 25 powders for .356 Win. loaded with the .358 | 225gr | Swift A-Frame. ADI AR 2219 delivers the highest muzzle velocity at 2,172 fps; across all powders the maximum-charge window runs from 1,270 fps to 2,172 fps. Accurate 2015 gives the best case fill at 100 %, and 25 of the 25 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (359 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.358" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Alliant AR-Comp, Alliant Reloder-10x 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. Norma 200, ADI AR 2207, ReloadSwiss RS 36 rank at the top here: for .356 Win. with the .358 | 225gr | Swift A-Frame 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.