Load Specifications
Load data in caliber .17 Rem. Fireball with .172 | 22gr | Impala LW CFN bullet and 25 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 3, Alliant Reloder-10x and Norma 200.
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>> | 84% | 47,674 psi | 87% | 3720 fps | 98.4% |
| Accurate 2015 | <<locked>> | 98% | 48,196 psi | 87% | 3812 fps | 97.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,683 psi | 74% | 3698 fps | 96.3% |
| Accurate LT-30 | <<locked>> | 90% | 47,993 psi | 87% | 3717 fps | 96.1% |
| ADI AR 2207 | <<locked>> | 88% | 47,703 psi | 87% | 3835 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 49,023 psi | 89% | 3885 fps | 96.1% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 46,572 psi | 85% | 3891 fps | 99.5% |
| Alliant Reloder-10x | <<locked>> | 94% | 48,254 psi | 88% | 3865 fps | 98.6% |
| Alliant Reloder-7 | <<locked>> | 88% | 49,429 psi | 90% | 3822 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 47,152 psi | 86% | 3688 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,749 psi | 58% | 2539 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 44,498 psi | 81% | 3842 fps | 95.8% |
| IMR 4198 | <<locked>> | 94% | 49,443 psi | 90% | 3858 fps | 99.4% |
| IMR 4227 | <<locked>> | 82% | 46,673 psi | 85% | 3740 fps | 99.7% |
| Lovex S053 | <<locked>> | 84% | 48,950 psi | 89% | 3763 fps | 100% |
| Norma 200 | <<locked>> | 90% | 49,284 psi | 89% | 3862 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,459 psi | 57% | 2592 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 46,673 psi | 85% | 3770 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 49,734 psi | 90% | 3596 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 48,269 psi | 88% | 3848 fps | 96.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 48,443 psi | 88% | 3760 fps | 95.9% |
| Vihtavuori N120 | <<locked>> | 88% | 47,616 psi | 86% | 3783 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 49,066 psi | 89% | 3793 fps | 98.6% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 47,950 psi | 87% | 3763 fps | 97.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 40,393 psi | 73% | 3681 fps | 95.9% |
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>> | 80% | 41,785 psi | 76% | 3583 fps | 97.2% |
| Accurate 2015 | <<locked>> | 92% | 40,089 psi | 73% | 3619 fps | 95.6% |
| Accurate 2495 | <<locked>> | 98% | 37,869 psi | 69% | 3622 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 88% | 45,730 psi | 83% | 3665 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 37,550 psi | 68% | 3593 fps | 99.1% |
| ADI AR 2219 | <<locked>> | 90% | 45,788 psi | 83% | 3809 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 88% | 32,358 psi | 59% | 3481 fps | 95.3% |
| Alliant Reloder-10x | 15.1 gr | 84% | 35,679 psi | 65% | 3540 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,305 psi | 71% | 3579 fps | 97% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 44,353 psi | 80% | 3625 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,409 psi | 42% | 2283 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 42,308 psi | 77% | 3783 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 33,214 psi | 60% | 3419 fps | 95.3% |
| IMR 4227 | <<locked>> | 80% | 44,367 psi | 81% | 3688 fps | 99.4% |
| Lovex S053 | <<locked>> | 80% | 43,569 psi | 79% | 3648 fps | 100% |
| Norma 200 | 14.9 gr | 80% | 36,129 psi | 66% | 3530 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,322 psi | 42% | 2336 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 43,714 psi | 79% | 3698 fps | 99.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,059 psi | 73% | 3409 fps | 100% |
| SNPE Vectan SP 3 | 16.2 gr | 90% | 42,917 psi | 78% | 3717 fps | 95.4% |
| Somchem S335 | <<locked>> | 98% | 45,440 psi | 82% | 3691 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 37,565 psi | 68% | 3550 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 86% | 36,506 psi | 66% | 3481 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 94% | 39,958 psi | 73% | 3573 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 98% | 38,377 psi | 70% | 3625 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 25 powders for .17 Rem. Fireball loaded with the .172 | 22gr | Impala LW CFN. Alliant AR-Comp delivers the highest muzzle velocity at 3,891 fps; across all powders the maximum-charge window runs from 2,539 fps to 3,891 fps. Accurate 2495 gives the best case fill at 100 %, and 25 of the 25 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 22.0 gr projectile in 0.172" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, 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. SNPE Vectan SP 3, Alliant Reloder-10x, Norma 200 rank at the top here: for .17 Rem. Fireball with the .172 | 22gr | Impala LW CFN 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.