Load Specifications
Load data in caliber .22-250 Ackley Improved with .224 | 55gr | Norma ORYX bullet and 75 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% | 52,199 psi | 90% | 3455 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 50,357 psi | 87% | 3455 fps | 99.8% |
| Accurate 2495 | <<locked>> | 88% | 52,431 psi | 90% | 3533 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 50,531 psi | 87% | 3501 fps | 99.7% |
| Accurate 4064 | <<locked>> | 92% | 49,937 psi | 86% | 3491 fps | 99.9% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,472 psi | 85% | 3527 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 88% | 51,343 psi | 89% | 3520 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 94% | 52,373 psi | 90% | 3514 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 50,604 psi | 87% | 3478 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 86% | 50,430 psi | 87% | 3491 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 51,750 psi | 89% | 3606 fps | 98.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 50,763 psi | 88% | 3619 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 51,822 psi | 89% | 3540 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 82% | 51,822 psi | 89% | 3474 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 49,269 psi | 85% | 3494 fps | 96.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,269 psi | 83% | 3527 fps | 96% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,385 psi | 85% | 3583 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 51,039 psi | 88% | 3517 fps | 96.7% |
| Bofors RP3 | <<locked>> | 92% | 49,153 psi | 85% | 3491 fps | 98.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 49,559 psi | 85% | 3415 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 49,676 psi | 86% | 3497 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 84% | 51,068 psi | 88% | 3599 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 84% | 50,299 psi | 87% | 3488 fps | 100% |
| Hodgdon H4895 | <<locked>> | 88% | 51,764 psi | 89% | 3537 fps | 98.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,614 psi | 77% | 3392 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 50,937 psi | 88% | 3566 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,708 psi | 60% | 2293 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 51,996 psi | 90% | 3524 fps | 98.4% |
| IMR 3031 | <<locked>> | 90% | 49,255 psi | 85% | 3517 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 50,894 psi | 88% | 3481 fps | 97.3% |
| IMR 4198 | <<locked>> | 82% | 51,793 psi | 89% | 3438 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 50,502 psi | 87% | 3537 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 86% | 50,604 psi | 87% | 3478 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 82% | 50,502 psi | 87% | 3458 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 88% | 50,531 psi | 87% | 3501 fps | 99.7% |
| Lovex S060 | <<locked>> | 88% | 51,329 psi | 89% | 3448 fps | 97.9% |
| Lovex S062 | <<locked>> | 92% | 51,372 psi | 89% | 3497 fps | 98.9% |
| Norma 201 | <<locked>> | 88% | 50,038 psi | 86% | 3465 fps | 98.6% |
| Norma 202 | <<locked>> | 88% | 50,415 psi | 87% | 3481 fps | 99.9% |
| Norma 203B | <<locked>> | 92% | 51,721 psi | 89% | 3547 fps | 97.9% |
| Norma URPᴾ | <<locked>> | 100% | 49,153 psi | 85% | 3520 fps | 96% |
| Ramshot Big Game | <<locked>> | 90% | 48,776 psi | 84% | 3497 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 50,401 psi | 87% | 3497 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 84% | 51,822 psi | 89% | 3474 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,766 psi | 60% | 2339 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 49,966 psi | 86% | 3465 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 52,373 psi | 90% | 3632 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 48,994 psi | 84% | 3599 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 86% | 50,981 psi | 88% | 3468 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 90% | 50,546 psi | 87% | 3465 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 96% | 52,359 psi | 90% | 3543 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 50,531 psi | 87% | 3501 fps | 99.7% |
| Shooters World Precision | <<locked>> | 92% | 51,372 psi | 89% | 3497 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 50,589 psi | 87% | 3540 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 52,257 psi | 90% | 3491 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 49,995 psi | 86% | 3481 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 52,112 psi | 90% | 3428 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 52,054 psi | 90% | 3419 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 51,808 psi | 89% | 3514 fps | 99.1% |
| Somchem S335 | <<locked>> | 88% | 51,213 psi | 88% | 3419 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,141 psi | 90% | 3501 fps | 97.9% |
| Somchem S355 | <<locked>> | 94% | 49,356 psi | 85% | 3478 fps | 97.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,801 psi | 76% | 3448 fps | 98.1% |
| Vihtavuori N130 | <<locked>> | 84% | 50,459 psi | 87% | 3389 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 51,227 psi | 88% | 3412 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 49,574 psi | 85% | 3448 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 50,256 psi | 87% | 3448 fps | 99.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,676 psi | 87% | 3465 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 98% | 50,821 psi | 88% | 3501 fps | 96.3% |
| Vihtavuori N530 | <<locked>> | 84% | 50,270 psi | 87% | 3491 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 90% | 50,082 psi | 86% | 3471 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 98% | 51,343 psi | 89% | 3560 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,472 psi | 85% | 3435 fps | 98.2% |
| Winchester 748 | <<locked>> | 84% | 51,082 psi | 88% | 3537 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 82% | 50,952 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% | 42,888 psi | 74% | 3274 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,239 psi | 81% | 3392 fps | 99.5% |
| Accurate 2495 | <<locked>> | 80% | 39,798 psi | 69% | 3274 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 40,756 psi | 70% | 3287 fps | 98.2% |
| Accurate 4064 | <<locked>> | 80% | 33,533 psi | 58% | 3100 fps | 97.1% |
| Accurate 4350 | <<locked>> | 98% | 46,079 psi | 79% | 3455 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 82% | 42,409 psi | 73% | 3320 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 88% | 43,642 psi | 75% | 3327 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,495 psi | 72% | 3278 fps | 96.7% |
| Alliant AR-Comp | <<locked>> | 80% | 40,828 psi | 70% | 3304 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,008 psi | 83% | 3527 fps | 97.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 47,587 psi | 82% | 3550 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 37,449 psi | 65% | 3209 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,501 psi | 84% | 3412 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,323 psi | 75% | 3360 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 45,658 psi | 79% | 3465 fps | 95.2% |
| Alliant Reloder-17 | 38.5 gr | 90% | 40,045 psi | 69% | 3350 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 44,628 psi | 77% | 3379 fps | 95% |
| Bofors RP3 | <<locked>> | 84% | 37,246 psi | 64% | 3209 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,758 psi | 75% | 3291 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,234 psi | 69% | 3284 fps | 97% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,048 psi | 76% | 3442 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 44,005 psi | 76% | 3360 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 80% | 39,755 psi | 69% | 3264 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 41,771 psi | 72% | 3323 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 38,624 psi | 67% | 3278 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,585 psi | 44% | 2054 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 40,538 psi | 70% | 3264 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 35,389 psi | 61% | 3199 fps | 98.9% |
| IMR 4064 | <<locked>> | 88% | 42,264 psi | 73% | 3287 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 48,907 psi | 84% | 3386 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 41,582 psi | 72% | 3330 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 41,495 psi | 72% | 3278 fps | 96.7% |
| Lovex D073.5 | <<locked>> | 80% | 46,949 psi | 81% | 3386 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 38,116 psi | 66% | 3222 fps | 97.5% |
| Lovex S060 | <<locked>> | 80% | 40,263 psi | 69% | 3199 fps | 95% |
| Lovex S062 | <<locked>> | 82% | 37,507 psi | 65% | 3179 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 38,682 psi | 67% | 3202 fps | 95.9% |
| Norma 202 | <<locked>> | 80% | 38,856 psi | 67% | 3225 fps | 98.3% |
| Norma 203B | <<locked>> | 86% | 42,627 psi | 74% | 3343 fps | 95.7% |
| Norma URP | <<locked>> | 98% | 46,050 psi | 79% | 3451 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 86% | 42,554 psi | 73% | 3353 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,002 psi | 71% | 3287 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,150 psi | 78% | 3330 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,730 psi | 44% | 2100 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,862 psi | 81% | 3402 fps | 99% |
| ReloadSwiss RS 52 | 36.2 gr | 86% | 45,295 psi | 78% | 3481 fps | 95.7% |
| ReloadSwiss RS 60 | 36 gr | 84% | 34,998 psi | 60% | 3222 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 42,453 psi | 73% | 3287 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 80% | 36,927 psi | 64% | 3143 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 88% | 39,740 psi | 69% | 3264 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,116 psi | 66% | 3222 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 37,507 psi | 65% | 3179 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 41,379 psi | 71% | 3333 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,269 psi | 85% | 3438 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 41,060 psi | 71% | 3278 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,379 psi | 70% | 3186 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,257 psi | 57% | 3005 fps | 97.8% |
| Somchem S321 | <<locked>> | 80% | 44,933 psi | 77% | 3369 fps | 97.9% |
| Somchem S335 | <<locked>> | 80% | 39,827 psi | 69% | 3179 fps | 99.1% |
| Somchem S341 | <<locked>> | 82% | 42,322 psi | 73% | 3291 fps | 95.5% |
| Somchem S355 | <<locked>> | 88% | 40,669 psi | 70% | 3278 fps | 95.6% |
| Somchem S365 | <<locked>> | 94% | 35,955 psi | 62% | 3238 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 44,672 psi | 77% | 3278 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,811 psi | 65% | 3133 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 35,824 psi | 62% | 3150 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 36,260 psi | 63% | 3133 fps | 98% |
| Vihtavuori N150 | <<locked>> | 88% | 34,563 psi | 60% | 3091 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 96% | 47,558 psi | 82% | 3432 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 43,671 psi | 75% | 3346 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,056 psi | 62% | 3146 fps | 97.5% |
| Vihtavuori N550 | <<locked>> | 96% | 47,718 psi | 82% | 3484 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 40,393 psi | 70% | 3232 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 44,063 psi | 76% | 3392 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,384 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 75 powders for .22-250 Ackley Improved loaded with the .224 | 55gr | Norma ORYX. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,632 fps; across all powders the maximum-charge window runs from 2,293 fps to 3,632 fps. Accurate 4350 gives the best case fill at 100 %, and 75 of the 75 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 ORYX 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.