Load Specifications
Load data in caliber .22-250 Ackley Improved with .224 | 63gr | Sierra VarmintKing bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Alliant Reloder-17.
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>> | 82% | 49,748 psi | 86% | 3215 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 51,590 psi | 89% | 3287 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 51,735 psi | 89% | 3337 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 51,692 psi | 89% | 3330 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 51,300 psi | 88% | 3386 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 86% | 52,388 psi | 90% | 3363 fps | 99% |
| ADI AR 2208 | <<locked>> | 90% | 50,111 psi | 86% | 3294 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 84% | 51,488 psi | 89% | 3314 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 84% | 51,837 psi | 89% | 3307 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 51,851 psi | 89% | 3471 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 49,980 psi | 86% | 3320 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 88% | 50,560 psi | 87% | 3343 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 98% | 49,690 psi | 86% | 3392 fps | 97.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 50,734 psi | 87% | 3438 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,942 psi | 65% | 3127 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 52,069 psi | 90% | 3363 fps | 98.1% |
| Bofors RP3 | <<locked>> | 90% | 50,430 psi | 87% | 3337 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 50,169 psi | 87% | 3248 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 84% | 50,691 psi | 87% | 3333 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,431 psi | 90% | 3442 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 82% | 51,126 psi | 88% | 3307 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 51,503 psi | 89% | 3343 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 84% | 49,661 psi | 86% | 3314 fps | 99% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,008 psi | 85% | 3317 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 52,286 psi | 90% | 3406 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,983 psi | 60% | 2152 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 49,690 psi | 86% | 3294 fps | 98.9% |
| IMR 3031 | <<locked>> | 88% | 51,097 psi | 88% | 3350 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 52,286 psi | 90% | 3327 fps | 98.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,064 psi | 79% | 3264 fps | 96.9% |
| IMR 4895 | <<locked>> | 88% | 51,851 psi | 89% | 3383 fps | 99% |
| IMR 8208 XBR | <<locked>> | 84% | 51,488 psi | 89% | 3314 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 86% | 51,735 psi | 89% | 3337 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 51,938 psi | 90% | 3281 fps | 98.9% |
| Lovex S062 | <<locked>> | 88% | 49,371 psi | 85% | 3278 fps | 99.4% |
| Lovex S065 | <<locked>> | 96% | 52,141 psi | 90% | 3320 fps | 96.7% |
| Norma 201 | <<locked>> | 86% | 51,024 psi | 88% | 3304 fps | 99.5% |
| Norma 202 | <<locked>> | 86% | 51,517 psi | 89% | 3314 fps | 100% |
| Norma 203B | <<locked>> | 88% | 49,821 psi | 86% | 3327 fps | 98.6% |
| Norma URP | <<locked>> | 98% | 50,720 psi | 87% | 3376 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 88% | 50,067 psi | 86% | 3343 fps | 98.6% |
| Ramshot TAC | <<locked>> | 84% | 51,663 psi | 89% | 3310 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 51,271 psi | 88% | 3337 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 52,330 psi | 90% | 3304 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,520 psi | 61% | 2205 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 52,069 psi | 90% | 3320 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 50,386 psi | 87% | 3406 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 50,241 psi | 87% | 3448 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 51,111 psi | 88% | 3406 fps | 97.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 51,227 psi | 88% | 3428 fps | 97.1% |
| Rottweil R 901 | <<locked>> | 84% | 52,185 psi | 90% | 3304 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 51,590 psi | 89% | 3301 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 92% | 50,212 psi | 87% | 3323 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 52,141 psi | 90% | 3320 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 51,735 psi | 89% | 3337 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 49,371 psi | 85% | 3278 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 51,953 psi | 90% | 3389 fps | 98.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 50,285 psi | 87% | 3284 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 50,836 psi | 88% | 3320 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,356 psi | 85% | 3196 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 49,574 psi | 85% | 3192 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 52,011 psi | 90% | 3248 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 49,864 psi | 86% | 3281 fps | 98.5% |
| Somchem S355 | <<locked>> | 92% | 50,749 psi | 88% | 3323 fps | 99.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,457 psi | 84% | 3379 fps | 99.7% |
| Unknown powder | <<locked>> | 96% | 51,663 psi | 89% | 3386 fps | 97.2% |
| Vihtavuori N133 | <<locked>> | 84% | 49,588 psi | 86% | 3186 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 51,285 psi | 88% | 3281 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 52,127 psi | 90% | 3291 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 52,199 psi | 90% | 3307 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 96% | 49,705 psi | 86% | 3314 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 84% | 52,040 psi | 90% | 3317 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 88% | 50,676 psi | 87% | 3281 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 52,475 psi | 90% | 3379 fps | 97.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,191 psi | 71% | 3219 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 50,517 psi | 87% | 3294 fps | 99.3% |
| Winchester 748 | <<locked>> | 82% | 52,098 psi | 90% | 3373 fps | 99.9% |
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 2015 | <<locked>> | 80% | 47,007 psi | 81% | 3169 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,668 psi | 68% | 3061 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,962 psi | 78% | 3205 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 37,449 psi | 65% | 3035 fps | 99.2% |
| Accurate 4350 | <<locked>> | 92% | 41,495 psi | 72% | 3182 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 43,294 psi | 75% | 3169 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 82% | 39,088 psi | 67% | 3045 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,339 psi | 78% | 3189 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 80% | 45,121 psi | 78% | 3196 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 41,959 psi | 72% | 3245 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,056 psi | 62% | 3005 fps | 96.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,030 psi | 67% | 3081 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 92% | 40,988 psi | 71% | 3189 fps | 95.3% |
| Alliant Reloder-17 | 35.6 gr | 84% | 35,781 psi | 62% | 3074 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 35,578 psi | 61% | 3058 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,366 psi | 73% | 3156 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 35,752 psi | 62% | 3005 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,137 psi | 81% | 3186 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,208 psi | 76% | 3205 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,660 psi | 84% | 3366 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 80% | 47,877 psi | 83% | 3248 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 44,831 psi | 77% | 3202 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 43,656 psi | 75% | 3186 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 35,375 psi | 61% | 2999 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,275 psi | 64% | 3077 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,049 psi | 45% | 1932 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,667 psi | 67% | 3048 fps | 96.4% |
| IMR 3031 | <<locked>> | 80% | 39,407 psi | 68% | 3114 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 38,116 psi | 66% | 3018 fps | 95.2% |
| IMR 4831 | <<locked>> | 96% | 40,654 psi | 70% | 3143 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 39,958 psi | 69% | 3120 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 80% | 45,339 psi | 78% | 3189 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 80% | 42,047 psi | 73% | 3143 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 43,366 psi | 75% | 3107 fps | 97.4% |
| Lovex S062 | <<locked>> | 80% | 38,406 psi | 66% | 3035 fps | 97.3% |
| Lovex S065 | <<locked>> | 92% | 45,992 psi | 79% | 3196 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 42,409 psi | 73% | 3123 fps | 98.2% |
| Norma 202 | <<locked>> | 80% | 42,366 psi | 73% | 3133 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 38,406 psi | 66% | 3068 fps | 95.8% |
| Norma URP | <<locked>> | 92% | 41,495 psi | 72% | 3182 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 37,956 psi | 65% | 3074 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 45,353 psi | 78% | 3176 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,788 psi | 77% | 3205 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,849 psi | 84% | 3238 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,295 psi | 45% | 1975 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,530 psi | 84% | 3251 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,611 psi | 70% | 3192 fps | 95.8% |
| ReloadSwiss RS 60 | 33.9 gr | 80% | 33,214 psi | 57% | 3015 fps | 96.8% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 41,379 psi | 71% | 3196 fps | 95% |
| ReloadSwiss RS 70 | 40.5 gr | 94% | 44,628 psi | 77% | 3281 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 45,977 psi | 79% | 3182 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 40,190 psi | 69% | 3061 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 82% | 35,926 psi | 62% | 3002 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 92% | 45,992 psi | 79% | 3196 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,047 psi | 73% | 3143 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 38,406 psi | 66% | 3035 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 37,260 psi | 64% | 3061 fps | 95.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,482 psi | 75% | 3143 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,684 psi | 72% | 3123 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,598 psi | 75% | 3081 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,201 psi | 62% | 2913 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 43,439 psi | 75% | 3084 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,149 psi | 74% | 3143 fps | 97.2% |
| Somchem S355 | <<locked>> | 80% | 34,635 psi | 60% | 2953 fps | 95% |
| Somchem S365 | <<locked>> | 88% | 32,460 psi | 56% | 2979 fps | 95.6% |
| Unknown powder | <<locked>> | 92% | 45,237 psi | 78% | 3255 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 43,830 psi | 76% | 3081 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,436 psi | 68% | 3054 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,205 psi | 69% | 3054 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 32,793 psi | 57% | 2877 fps | 96% |
| Vihtavuori N160 | <<locked>> | 92% | 43,482 psi | 75% | 3182 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 45,266 psi | 78% | 3182 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 80% | 38,972 psi | 67% | 3038 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 42,830 psi | 74% | 3182 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 98% | 38,450 psi | 66% | 3150 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 35,810 psi | 62% | 2963 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 48,443 psi | 84% | 3301 fps | 99.7% |
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 77 powders for .22-250 Ackley Improved loaded with the .224 | 63gr | Sierra VarmintKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,471 fps; across all powders the maximum-charge window runs from 2,152 fps to 3,471 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 77 of the 77 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 63.0 gr projectile in 0.224" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon Hybrid 100V, 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. ReloadSwiss RS 60, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for .22-250 Ackley Improved with the .224 | 63gr | Sierra VarmintKing 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.