Load Specifications
Load data in caliber .17 Rem. Fireball with .172 | 20gr | Nosler Varmageddon BTip bullet and 19 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma 200, ADI AR 2207 and Alliant Reloder-10x.
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 1680 | <<locked>> | 88% | 48,863 psi | 89% | 3891 fps | 98.1% |
| Accurate 2015ᴾ | <<locked>> | 100% | 44,788 psi | 81% | 3881 fps | 96.2% |
| ADI AR 2207 | <<locked>> | 92% | 47,645 psi | 86% | 3996 fps | 99.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,394 psi | 75% | 3901 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 98% | 47,747 psi | 87% | 4009 fps | 98% |
| Alliant Reloder-7 | <<locked>> | 90% | 46,891 psi | 85% | 3921 fps | 98.2% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 48,066 psi | 87% | 3839 fps | 95.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,240 psi | 55% | 2644 fps | 100% |
| IMR 4198 | <<locked>> | 96% | 46,934 psi | 85% | 3953 fps | 98.5% |
| IMR 4227 | <<locked>> | 86% | 47,863 psi | 87% | 3924 fps | 99.4% |
| Lovex S053 | <<locked>> | 88% | 48,863 psi | 89% | 3927 fps | 100% |
| Norma 200 | <<locked>> | 94% | 47,950 psi | 87% | 3993 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,704 psi | 54% | 2697 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 47,137 psi | 86% | 3937 fps | 99.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 47,747 psi | 87% | 3730 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 49,269 psi | 89% | 4016 fps | 96.3% |
| Vihtavuori N110 | <<locked>> | 82% | 48,385 psi | 88% | 3858 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 47,761 psi | 87% | 3944 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 49,008 psi | 89% | 3937 fps | 98% |
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 1680 | <<locked>> | 82% | 39,827 psi | 72% | 3675 fps | 95.8% |
| Accurate 2015 | <<locked>> | 98% | 41,655 psi | 76% | 3802 fps | 95.3% |
| ADI AR 2207 | 14.4 gr | 80% | 31,952 psi | 58% | 3579 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 96% | 35,969 psi | 65% | 3737 fps | 96% |
| Alliant Reloder-10x | 16.4 gr | 90% | 37,159 psi | 67% | 3734 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 82% | 36,143 psi | 66% | 3638 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 45,020 psi | 82% | 3770 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,046 psi | 40% | 2382 fps | 100% |
| IMR 4198 | <<locked>> | 86% | 35,012 psi | 64% | 3625 fps | 95.1% |
| IMR 4227 | <<locked>> | 80% | 39,291 psi | 71% | 3714 fps | 98% |
| Lovex S053 | <<locked>> | 80% | 38,305 psi | 70% | 3681 fps | 99.7% |
| Norma 200 | 15.9 gr | 84% | 34,911 psi | 63% | 3648 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,741 psi | 39% | 2434 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 38,928 psi | 71% | 3734 fps | 97.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,042 psi | 65% | 3484 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 45,948 psi | 83% | 3940 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 80% | 44,904 psi | 81% | 3793 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 32,097 psi | 58% | 3547 fps | 98.3% |
| Vihtavuori N130 | <<locked>> | 92% | 38,377 psi | 70% | 3681 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 19 powders for .17 Rem. Fireball loaded with the .172 | 20gr | Nosler Varmageddon BTip. SNPE Vectan SP 3 delivers the highest muzzle velocity at 4,016 fps; across all powders the maximum-charge window runs from 2,644 fps to 4,016 fps. Accurate 2015 gives the best case fill at 100 %, and 19 of the 19 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 54–89 %, leaving at least 11 % headroom. The 20.0 gr projectile in 0.172" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Alliant AR-Comp, Hodgdon TrailBoss 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. Norma 200, ADI AR 2207, Alliant Reloder-10x rank at the top here: for .17 Rem. Fireball with the .172 | 20gr | Nosler Varmageddon BTip 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.