Load Specifications
Load data in caliber .219 Zipper with .224 | 45gr | Sierra SP HORNET bullet and 11 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 |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 36,201 psi | 88% | 3159 fps | 95.9% |
| Accurate 2495 | <<locked>> | 98% | 35,897 psi | 87% | 3215 fps | 96.4% |
| Alliant AR-Comp | <<locked>> | 92% | 35,824 psi | 87% | 3245 fps | 98.4% |
| Alliant Reloder-10x | <<locked>> | 86% | 36,927 psi | 89% | 3215 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,198 psi | 75% | 2234 fps | 100% |
| IMR 4198 | <<locked>> | 84% | 36,506 psi | 88% | 3166 fps | 98% |
| Norma 200 | <<locked>> | 82% | 36,724 psi | 89% | 3192 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,038 psi | 75% | 2287 fps | 100% |
| Vihtavuori N130 | <<locked>> | 86% | 35,389 psi | 86% | 3100 fps | 96.6% |
| Vihtavuori N133 | <<locked>> | 92% | 37,246 psi | 90% | 3146 fps | 96.1% |
| Vihtavuori N135 | <<locked>> | 98% | 37,043 psi | 90% | 3235 fps | 96.5% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 34,142 psi | 83% | 3107 fps | 95.2% |
| Accurate 2495 | <<locked>> | 96% | 33,272 psi | 80% | 3146 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 86% | 29,457 psi | 71% | 3048 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 32,430 psi | 78% | 3091 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,105 psi | 56% | 2018 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 32,155 psi | 78% | 3041 fps | 96.5% |
| Norma 200 | <<locked>> | 80% | 34,301 psi | 83% | 3130 fps | 97.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,698 psi | 55% | 2057 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 33,402 psi | 81% | 3048 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 90% | 34,795 psi | 84% | 3084 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 96% | 34,969 psi | 85% | 3179 fps | 95.7% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 11 powders for .219 Zipper loaded with the .224 | 45gr | Sierra SP HORNET. Alliant AR-Comp delivers the highest muzzle velocity at 3,245 fps; across all powders the maximum-charge window runs from 2,234 fps to 3,245 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 11 of the 11 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (285 MPa), the top charges use 75–90 %, leaving at least 10 % 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.