Load Specifications
Load data in caliber .219 Zipper with .224 | 40gr | Nosler Varmageddon bullet and 7 powders. The key underlying parameters are shown in the table above.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| ADI AR 2207 | <<locked>> | 84% | 35,781 psi | 87% | 3314 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 96% | 35,027 psi | 85% | 3330 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,153 psi | 73% | 2323 fps | 100% |
| IMR 4198 | <<locked>> | 88% | 36,260 psi | 88% | 3281 fps | 96.3% |
| Norma 200 | <<locked>> | 86% | 36,216 psi | 88% | 3310 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,834 psi | 72% | 2375 fps | 100% |
| Vihtavuori N120 | <<locked>> | 84% | 35,984 psi | 87% | 3278 fps | 99.5% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| ADI AR 2207 | <<locked>> | 80% | 31,546 psi | 76% | 3196 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 94% | 32,996 psi | 80% | 3268 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,915 psi | 53% | 2087 fps | 100% |
| IMR 4198 | <<locked>> | 86% | 34,185 psi | 83% | 3219 fps | 95.5% |
| Norma 200 | <<locked>> | 84% | 34,084 psi | 82% | 3251 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,828 psi | 53% | 2142 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 31,734 psi | 77% | 3163 fps | 98.7% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 7 powders for .219 Zipper loaded with the .224 | 40gr | Nosler Varmageddon. Alliant AR-Comp delivers the highest muzzle velocity at 3,330 fps; across all powders the maximum-charge window runs from 2,323 fps to 3,330 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 7 of the 7 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (285 MPa), the top charges use 72–88 %, leaving at least 12 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.