Load Specifications
Load data in caliber 5.6 x 35 R Vierling with .223 | 45gr | Speer Spitzer Soft Point bullet and 6 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LilGun, ReloadSwiss RS 14 and Hodgdon TrailBoss.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Hodgdon LilGun | <<locked>> | 94% | 32,967 psi | 84% | 2418 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,306 psi | 54% | 1467 fps | 100% |
| Lovex S040 | <<locked>> | 88% | 33,141 psi | 85% | 2238 fps | 96% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,639 psi | 53% | 1506 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 24,598 psi | 63% | 2064 fps | 95.8% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 30,879 psi | 79% | 2274 fps | 96.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Hodgdon LilGun | 8 gr | 86% | 25,773 psi | 66% | 2247 fps | 95.1% |
| Hodgdon TrailBoss | 2.4 gr | 80% | 15,403 psi | 39% | 1309 fps | 100% |
| Lovex S040 | <<locked>> | 86% | 31,894 psi | 81% | 2211 fps | 95.6% |
| ReloadSwiss RS 14 | 2.5 gr | 80% | 15,156 psi | 39% | 1352 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 98% | 23,786 psi | 61% | 2041 fps | 95.3% |
| Vihtavuori N110 | <<locked>> | 96% | 27,630 psi | 71% | 2201 fps | 95.3% |
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 6 powders for 5.6 x 35 R Vierling loaded with the .223 | 45gr | Speer Spitzer Soft Point. Hodgdon LilGun delivers the highest muzzle velocity at 2,418 fps; across all powders the maximum-charge window runs from 1,467 fps to 2,418 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 6 of the 6 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (270 MPa), the top charges use 53–85 %, leaving at least 15 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, SNPE Vectan BA6 1/2 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. Hodgdon LilGun, ReloadSwiss RS 14, Hodgdon TrailBoss rank at the top here: for 5.6 x 35 R Vierling with the .223 | 45gr | Speer Spitzer Soft Point 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.