Load Specifications
Load data in caliber .219 Zipper with .224 | 50gr | Berger Varmint bullet and 10 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, Vihtavuori N135 and Accurate 2495.
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% | 36,912 psi | 89% | 3038 fps | 96.9% |
| Accurate 2495 | <<locked>> | 98% | 36,390 psi | 88% | 3091 fps | 97.2% |
| Alliant AR-Comp | <<locked>> | 92% | 36,245 psi | 88% | 3114 fps | 99% |
| Alliant Reloder-10x | <<locked>> | 84% | 35,114 psi | 85% | 3022 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,488 psi | 76% | 2106 fps | 100% |
| IMR 4198 | <<locked>> | 84% | 36,898 psi | 89% | 3028 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,372 psi | 76% | 2156 fps | 100% |
| Vihtavuori N130 | <<locked>> | 86% | 36,114 psi | 87% | 2979 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 90% | 35,737 psi | 86% | 2972 fps | 96.3% |
| Vihtavuori N135 | <<locked>> | 96% | 35,491 psi | 86% | 3054 fps | 96.7% |
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 2015 | <<locked>> | 86% | 32,634 psi | 79% | 2927 fps | 95.4% |
| Accurate 2495 | 25.4 gr | 94% | 31,575 psi | 76% | 2966 fps | 95.5% |
| Alliant AR-Comp | 22 gr | 82% | 26,484 psi | 64% | 2812 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 30,995 psi | 75% | 2907 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,351 psi | 56% | 1900 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 33,069 psi | 80% | 2927 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,003 psi | 56% | 1936 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,776 psi | 72% | 2808 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 88% | 33,286 psi | 81% | 2907 fps | 95.4% |
| Vihtavuori N135 | 24.1 gr | 92% | 31,415 psi | 76% | 2943 fps | 95% |
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 10 powders for .219 Zipper loaded with the .224 | 50gr | Berger Varmint. Alliant AR-Comp delivers the highest muzzle velocity at 3,114 fps; across all powders the maximum-charge window runs from 2,106 fps to 3,114 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 10 of the 10 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (285 MPa), the top charges use 76–89 %, leaving at least 11 % headroom. The 50.0 gr projectile in 0.224" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. 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, Vihtavuori N135, Accurate 2495 rank at the top here: for .219 Zipper with the .224 | 50gr | Berger Varmint 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.