Load Specifications
Load data in caliber .22-250 Ackley Improved with .224 | 55gr | Norma FMJ bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and ReloadSwiss RS 52.
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>> | 86% | 52,083 psi | 90% | 3451 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 50,662 psi | 87% | 3461 fps | 99.8% |
| Accurate 2495 | <<locked>> | 90% | 50,270 psi | 87% | 3458 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 50,821 psi | 88% | 3507 fps | 99.7% |
| Accurate 4064 | <<locked>> | 92% | 50,212 psi | 87% | 3497 fps | 99.9% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,763 psi | 86% | 3533 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 88% | 51,619 psi | 89% | 3527 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 92% | 49,429 psi | 85% | 3455 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 50,473 psi | 87% | 3478 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 86% | 50,328 psi | 87% | 3488 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 51,648 psi | 89% | 3602 fps | 98.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 51,053 psi | 88% | 3629 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 52,156 psi | 90% | 3547 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 82% | 51,663 psi | 89% | 3471 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 49,545 psi | 85% | 3501 fps | 97% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,559 psi | 84% | 3533 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,690 psi | 86% | 3589 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 51,329 psi | 89% | 3524 fps | 96.8% |
| Bofors RP3 | <<locked>> | 94% | 52,431 psi | 90% | 3556 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 49,458 psi | 85% | 3412 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 49,559 psi | 85% | 3494 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 84% | 50,952 psi | 88% | 3596 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 84% | 50,212 psi | 87% | 3484 fps | 100% |
| Hodgdon H4895 | <<locked>> | 88% | 52,112 psi | 90% | 3547 fps | 98.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,498 psi | 77% | 3389 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 50,821 psi | 88% | 3563 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,650 psi | 60% | 2293 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 52,272 psi | 90% | 3527 fps | 98.4% |
| IMR 3031 | <<locked>> | 90% | 49,559 psi | 85% | 3524 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 51,169 psi | 88% | 3484 fps | 97.4% |
| IMR 4198 | <<locked>> | 82% | 52,156 psi | 90% | 3445 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 50,778 psi | 88% | 3543 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 86% | 50,473 psi | 87% | 3478 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 82% | 50,792 psi | 88% | 3465 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 88% | 50,821 psi | 88% | 3507 fps | 99.7% |
| Lovex S060 | <<locked>> | 88% | 51,619 psi | 89% | 3455 fps | 97.9% |
| Lovex S062 | <<locked>> | 92% | 51,648 psi | 89% | 3504 fps | 98.9% |
| Norma 201 | <<locked>> | 88% | 50,328 psi | 87% | 3471 fps | 98.7% |
| Norma 202 | <<locked>> | 88% | 50,691 psi | 87% | 3488 fps | 99.9% |
| Norma 203B | <<locked>> | 92% | 51,982 psi | 90% | 3550 fps | 98% |
| Norma URPᴾ | <<locked>> | 100% | 49,023 psi | 85% | 3517 fps | 96% |
| Ramshot Big Game | <<locked>> | 92% | 52,301 psi | 90% | 3566 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 50,647 psi | 87% | 3504 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 51,706 psi | 89% | 3471 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,708 psi | 60% | 2339 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 50,241 psi | 87% | 3471 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 48,820 psi | 84% | 3556 fps | 96.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,298 psi | 85% | 3606 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 86% | 51,227 psi | 88% | 3474 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 90% | 50,836 psi | 88% | 3471 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 96% | 52,257 psi | 90% | 3540 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 50,821 psi | 88% | 3507 fps | 99.7% |
| Shooters World Precision | <<locked>> | 92% | 51,648 psi | 89% | 3504 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 50,908 psi | 88% | 3547 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 49,879 psi | 86% | 3481 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 52,011 psi | 90% | 3428 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 51,938 psi | 90% | 3415 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 51,692 psi | 89% | 3510 fps | 99.1% |
| Somchem S335 | <<locked>> | 88% | 51,488 psi | 89% | 3425 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,402 psi | 90% | 3504 fps | 97.9% |
| Somchem S355 | <<locked>> | 94% | 49,632 psi | 86% | 3481 fps | 98% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,671 psi | 75% | 3448 fps | 98.1% |
| Vihtavuori N130 | <<locked>> | 84% | 50,720 psi | 87% | 3392 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 51,517 psi | 89% | 3419 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 49,879 psi | 86% | 3455 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 50,531 psi | 87% | 3455 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,937 psi | 88% | 3471 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 98% | 51,155 psi | 88% | 3507 fps | 96.4% |
| Vihtavuori N530 | <<locked>> | 84% | 50,096 psi | 86% | 3484 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 90% | 50,343 psi | 87% | 3474 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 98% | 51,213 psi | 88% | 3560 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,719 psi | 86% | 3442 fps | 98.3% |
| Winchester 748 | <<locked>> | 84% | 50,937 psi | 88% | 3537 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 82% | 50,836 psi | 88% | 3514 fps | 98.3% |
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>> | 80% | 43,149 psi | 74% | 3281 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,123 psi | 81% | 3389 fps | 99.5% |
| Accurate 2495 | <<locked>> | 80% | 35,766 psi | 62% | 3143 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 40,973 psi | 71% | 3294 fps | 98.2% |
| Accurate 4064 | <<locked>> | 80% | 33,765 psi | 58% | 3107 fps | 97.2% |
| Accurate 4350 | <<locked>> | 98% | 45,934 psi | 79% | 3451 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 82% | 42,322 psi | 73% | 3320 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 88% | 43,497 psi | 75% | 3320 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,713 psi | 72% | 3284 fps | 96.8% |
| Alliant AR-Comp | <<locked>> | 80% | 40,727 psi | 70% | 3304 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,327 psi | 83% | 3533 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 47,485 psi | 82% | 3547 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 37,695 psi | 65% | 3215 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,414 psi | 83% | 3412 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,221 psi | 75% | 3356 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 45,556 psi | 79% | 3461 fps | 95.1% |
| Alliant Reloder-17 | 38.6 gr | 90% | 40,306 psi | 70% | 3360 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 47,819 psi | 82% | 3448 fps | 95.9% |
| Bofors RP3 | <<locked>> | 84% | 37,202 psi | 64% | 3209 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,656 psi | 75% | 3287 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,132 psi | 69% | 3281 fps | 97% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,961 psi | 76% | 3442 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 43,918 psi | 76% | 3356 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 80% | 40,001 psi | 69% | 3268 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 39,305 psi | 68% | 3261 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 38,856 psi | 67% | 3284 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,541 psi | 44% | 2054 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 40,437 psi | 70% | 3261 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 35,650 psi | 61% | 3205 fps | 98.9% |
| IMR 4064 | <<locked>> | 88% | 42,511 psi | 73% | 3294 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 48,805 psi | 84% | 3383 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 41,495 psi | 72% | 3330 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 41,713 psi | 72% | 3284 fps | 96.8% |
| Lovex D073.5 | <<locked>> | 80% | 47,224 psi | 81% | 3392 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 38,319 psi | 66% | 3228 fps | 97.5% |
| Lovex S060 | <<locked>> | 82% | 42,801 psi | 74% | 3261 fps | 95.8% |
| Lovex S062 | <<locked>> | 82% | 37,434 psi | 65% | 3179 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 38,914 psi | 67% | 3205 fps | 96% |
| Norma 202 | <<locked>> | 80% | 39,088 psi | 67% | 3232 fps | 98.3% |
| Norma 203B | <<locked>> | 86% | 42,540 psi | 73% | 3343 fps | 95.7% |
| Norma URP | <<locked>> | 98% | 45,934 psi | 79% | 3451 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 86% | 42,453 psi | 73% | 3353 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,915 psi | 71% | 3284 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,382 psi | 78% | 3337 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,701 psi | 44% | 2100 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,731 psi | 81% | 3399 fps | 99% |
| ReloadSwiss RS 52 | 36.3 gr | 86% | 45,571 psi | 79% | 3488 fps | 95.8% |
| ReloadSwiss RS 60 | 36 gr | 84% | 34,911 psi | 60% | 3219 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 42,728 psi | 74% | 3294 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 80% | 36,854 psi | 64% | 3143 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 88% | 40,001 psi | 69% | 3274 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,319 psi | 66% | 3228 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 37,434 psi | 65% | 3179 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 41,292 psi | 71% | 3330 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 40,973 psi | 71% | 3278 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,306 psi | 70% | 3182 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,185 psi | 57% | 3002 fps | 97.8% |
| Somchem S321 | <<locked>> | 80% | 45,194 psi | 78% | 3376 fps | 98% |
| Somchem S335 | <<locked>> | 80% | 40,030 psi | 69% | 3186 fps | 99.1% |
| Somchem S341 | <<locked>> | 82% | 42,569 psi | 73% | 3297 fps | 95.6% |
| Somchem S355 | <<locked>> | 88% | 40,886 psi | 71% | 3284 fps | 95.7% |
| Somchem S365 | <<locked>> | 94% | 35,853 psi | 62% | 3235 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 44,933 psi | 77% | 3284 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,739 psi | 65% | 3133 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 35,752 psi | 62% | 3150 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 36,448 psi | 63% | 3140 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 88% | 34,490 psi | 59% | 3087 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 96% | 47,442 psi | 82% | 3432 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 43,947 psi | 76% | 3353 fps | 97.5% |
| Vihtavuori N540 | <<locked>> | 80% | 35,984 psi | 62% | 3143 fps | 97.4% |
| Vihtavuori N550 | <<locked>> | 96% | 47,993 psi | 83% | 3491 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 40,582 psi | 70% | 3235 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 44,324 psi | 76% | 3399 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,268 psi | 82% | 3438 fps | 97.6% |
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 74 powders for .22-250 Ackley Improved loaded with the .224 | 55gr | Norma FMJ. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,629 fps; across all powders the maximum-charge window runs from 2,293 fps to 3,629 fps. Accurate 4350 gives the best case fill at 100 %, and 74 of the 74 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (400 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.224" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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. ReloadSwiss RS 60, Alliant Reloder-17, ReloadSwiss RS 52 rank at the top here: for .22-250 Ackley Improved with the .224 | 55gr | Norma FMJ 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.