Load Specifications
Load data in caliber .219 Zipper with .224 | 45gr | Sierra SP SemiSp bullet and 9 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, 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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495ᴾ | <<locked>> | 100% | 37,072 psi | 90% | 3241 fps | 96.7% |
| Alliant AR-Comp | <<locked>> | 92% | 34,838 psi | 84% | 3212 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 86% | 36,230 psi | 88% | 3192 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,415 psi | 76% | 2234 fps | 100% |
| IMR 4198 | <<locked>> | 84% | 35,839 psi | 87% | 3140 fps | 97.7% |
| Norma 200 | <<locked>> | 82% | 35,998 psi | 87% | 3169 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,748 psi | 74% | 2274 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 37,260 psi | 90% | 3143 fps | 97% |
| Vihtavuori N135 | <<locked>> | 98% | 36,477 psi | 88% | 3212 fps | 96.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 98% | 34,780 psi | 84% | 3182 fps | 95.9% |
| Alliant AR-Comp | 23.9 gr | 86% | 28,921 psi | 70% | 3022 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 82% | 31,763 psi | 77% | 3064 fps | 95.3% |
| Hodgdon TrailBoss | 7.7 gr | 80% | 22,742 psi | 55% | 2001 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 31,865 psi | 77% | 3028 fps | 96.3% |
| Norma 200 | <<locked>> | 80% | 33,547 psi | 81% | 3104 fps | 96.8% |
| ReloadSwiss RS 14 | 7.9 gr | 80% | 22,713 psi | 55% | 2051 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 32,764 psi | 79% | 3025 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 96% | 33,997 psi | 82% | 3146 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 9 powders for .219 Zipper loaded with the .224 | 45gr | Sierra SP SemiSp. Accurate 2495 delivers the highest muzzle velocity at 3,241 fps; across all powders the maximum-charge window runs from 2,234 fps to 3,241 fps. Accurate 2495 gives the best case fill at 100 %, and 9 of the 9 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (285 MPa), the top charges use 74–90 %, leaving at least 10 % headroom. Accurate 2495, 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. Alliant AR-Comp, ReloadSwiss RS 14, Hodgdon TrailBoss rank at the top here: for .219 Zipper with the .224 | 45gr | Sierra SP SemiSp 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.