Load data for .22-250 Ackley Improved + .224 | 58gr | Peregrine Plainsmaster (VLR-4)

.22-250 Ackley Improved cartridge drawing
Peregrine logo

Load Specifications

Bullet Manufacturer:Peregrine
Bullet Weight:58 gr
Bullet Diameter:0.224"
Bullet Length:<<locked>>
Case Length (l3):1.94"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:46.9 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:57,986 psi
Recommended Twist Rate:1:8.5

Load data in caliber .22-250 Ackley Improved with .224 | 58gr | Peregrine Plainsmaster (VLR-4) bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 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"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>86%51,779 psi89%3366 fps100%
Accurate 2460<<locked>>82%50,154 psi86%3369 fps99.8%
Accurate 2495<<locked>>90%49,298 psi85%3363 fps100%
Accurate 2520<<locked>>86%49,734 psi86%3406 fps99.7%
Accurate 2520<<locked>>86%49,734 psi86%3406 fps99.7%
Accurate 4064<<locked>>92%49,429 psi85%3402 fps100%
Accurate 4350ᴾ<<locked>>100%48,660 psi84%3435 fps96.2%
ADI AR 2206H<<locked>>88%50,879 psi88%3435 fps97.9%
ADI AR 2208<<locked>>94%52,098 psi90%3432 fps97.6%
ADI Benchmark 8208<<locked>>86%50,038 psi86%3389 fps98.8%
Alliant AR-Comp<<locked>>86%49,588 psi86%3392 fps100%
Alliant Power Pro 1200-R<<locked>>82%50,865 psi88%3507 fps98.4%
Alliant Power Pro 2000-MR<<locked>>90%50,343 psi87%3533 fps97%
Alliant Reloder- TS 15.5<<locked>>94%51,605 psi89%3458 fps98.8%
Alliant Reloder-10x<<locked>>82%51,097 psi88%3376 fps100%
Alliant Reloder-15<<locked>>92%52,228 psi90%3474 fps97.7%
Alliant Reloder-16ᴾ<<locked>>100%47,950 psi83%3445 fps96.2%
Alliant Reloder-17<<locked>>98%52,257 psi90%3570 fps98.8%
Baschieri & Pellagri 107<<locked>>88%50,517 psi87%3432 fps96.9%
Bofors RP3<<locked>>94%51,924 psi90%3468 fps98.9%
Hodgdon Benchmark<<locked>>86%52,156 psi90%3386 fps99.4%
Hodgdon BL-C2<<locked>>86%48,950 psi84%3406 fps99.1%
Hodgdon CFE223<<locked>>84%50,386 psi87%3507 fps97.4%
Hodgdon H322<<locked>>84%49,864 psi86%3396 fps100%
Hodgdon H380<<locked>>92%49,937 psi86%3409 fps95.9%
Hodgdon H4895<<locked>>88%51,300 psi88%3448 fps98.5%
Hodgdon Hybrid 100Vᴾ<<locked>>100%43,816 psi76%3301 fps96.9%
Hodgdon LEVERevolution<<locked>>92%50,401 psi87%3474 fps98.7%
Hodgdon TrailBossᴾ<<locked>>100%34,461 psi59%2215 fps100%
Hodgdon VARGET<<locked>>92%51,590 psi89%3435 fps98.5%
IMR 3031<<locked>>92%52,054 psi90%3484 fps100%
IMR 4064<<locked>>94%50,488 psi87%3392 fps97.4%
IMR 4198<<locked>>82%51,401 psi89%3343 fps100%
IMR 4895<<locked>>90%50,053 psi86%3451 fps97.9%
IMR 8208 XBR<<locked>>86%50,038 psi86%3389 fps98.8%
Lovex D073.5<<locked>>82%49,951 psi86%3369 fps99.3%
Lovex D073.6<<locked>>88%50,169 psi87%3415 fps99.7%
Lovex S060<<locked>>88%51,213 psi88%3366 fps98%
Lovex S062<<locked>>92%50,952 psi88%3412 fps99%
Norma 201<<locked>>88%49,864 psi86%3383 fps98.8%
Norma 202<<locked>>88%49,850 psi86%3392 fps99.9%
Norma 203B<<locked>>92%51,401 psi89%3461 fps98.1%
Norma URPᴾ<<locked>>100%48,428 psi84%3432 fps96.1%
Ramshot Big Game<<locked>>92%51,677 psi89%3478 fps98%
Ramshot Wild Boar<<locked>>86%49,719 psi86%3406 fps97.7%
Ramshot X-Terminator<<locked>>84%51,488 psi89%3389 fps97.9%
ReloadSwiss RS 14ᴾ<<locked>>100%34,896 psi60%2267 fps100%
ReloadSwiss RS 40<<locked>>82%49,676 psi86%3379 fps99.5%
ReloadSwiss RS 52<<locked>>90%51,677 psi89%3540 fps97.6%
ReloadSwiss RS 60<<locked>>96%52,156 psi90%3586 fps99.9%
ReloadSwiss RS 62ᴾ<<locked>>100%48,660 psi84%3455 fps95.9%
Rottweil R 901<<locked>>86%50,444 psi87%3379 fps99.8%
Rottweil R 902<<locked>>90%50,009 psi86%3373 fps98.8%
Rottweil R 903<<locked>>96%51,358 psi89%3448 fps98.6%
Shooters World Match Rifle<<locked>>88%50,169 psi87%3415 fps99.7%
Shooters World Precision<<locked>>92%50,952 psi88%3412 fps99%
SNPE Vectan SP 11<<locked>>94%50,198 psi87%3455 fps97.8%
SNPE Vectan SP 3<<locked>>82%52,040 psi90%3402 fps100%
SNPE Vectan SP 7<<locked>>88%52,127 psi90%3415 fps96.3%
SNPE Vectan SP 9<<locked>>88%49,313 psi85%3389 fps97.6%
SNPE Vectan Tubal 3000<<locked>>88%51,387 psi89%3337 fps99.9%
SNPE Vectan Tubal 5000<<locked>>94%51,692 psi89%3333 fps100%
Somchem S321<<locked>>84%51,039 psi88%3422 fps99.1%
Somchem S335<<locked>>88%51,039 psi88%3333 fps100%
Somchem S341<<locked>>88%51,634 psi89%3415 fps98%
Somchem S355<<locked>>96%52,025 psi90%3451 fps98.6%
Somchem S365ᴾ<<locked>>100%43,134 psi74%3363 fps98.2%
Vihtavuori N130<<locked>>84%50,299 psi87%3304 fps100%
Vihtavuori N133<<locked>>90%50,865 psi88%3323 fps100%
Vihtavuori N135<<locked>>92%52,388 psi90%3415 fps100%
Vihtavuori N140<<locked>>90%49,777 psi86%3360 fps100%
Vihtavuori N150ᴾ<<locked>>100%50,082 psi86%3379 fps99.2%
Vihtavuori N160<<locked>>98%50,169 psi87%3412 fps96.4%
Vihtavuori N530<<locked>>84%49,574 psi85%3396 fps98.8%
Vihtavuori N540<<locked>>90%49,763 psi86%3386 fps99.9%
Vihtavuori N550<<locked>>98%50,662 psi87%3471 fps96.5%
Winchester 6.5 StaBALL<<locked>>98%48,805 psi84%3350 fps98.2%
Winchester 748<<locked>>84%50,299 psi87%3445 fps99.4%
Winchester StaBALL Match<<locked>>82%50,357 psi87%3422 fps98.4%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%42,583 psi73%3189 fps100%
Accurate 2460<<locked>>80%46,499 psi80%3301 fps99.5%
Accurate 2495<<locked>>80%35,157 psi61%3058 fps99.6%
Accurate 2520<<locked>>80%40,379 psi70%3209 fps98.3%
Accurate 2520<<locked>>80%40,379 psi70%3209 fps98.3%
Accurate 4064<<locked>>80%33,199 psi57%3025 fps97.3%
Accurate 4350<<locked>>98%45,208 psi78%3363 fps95.3%
ADI AR 2206H<<locked>>82%41,684 psi72%3232 fps95.7%
ADI AR 2208<<locked>>88%43,105 psi74%3238 fps95.3%
ADI Benchmark 8208<<locked>>80%41,350 psi71%3196 fps96.9%
Alliant AR-Comp<<locked>>80%40,190 psi69%3215 fps100%
Alliant Power Pro 1200-R<<locked>>80%47,921 psi83%3442 fps97.8%
Alliant Power Pro 2000-MR36.8 gr88%47,094 psi81%3461 fps96.1%
Alliant Reloder- TS 15.5<<locked>>84%37,115 psi64%3130 fps95.2%
Alliant Reloder-10x<<locked>>80%48,153 psi83%3323 fps100%
Alliant Reloder-15<<locked>>86%42,772 psi74%3274 fps95.4%
Alliant Reloder-16<<locked>>98%44,875 psi77%3373 fps95.2%
Alliant Reloder-1737 gr90%39,610 psi68%3268 fps95.3%
Baschieri & Pellagri 107<<locked>>84%43,961 psi76%3287 fps95.1%
Bofors RP3<<locked>>84%36,637 psi63%3123 fps95.2%
Hodgdon Benchmark<<locked>>80%43,265 psi75%3202 fps98%
Hodgdon BL-C2<<locked>>80%39,639 psi68%3199 fps97.1%
Hodgdon CFE223<<locked>>80%43,569 psi75%3356 fps95.5%
Hodgdon H322<<locked>>80%43,410 psi75%3268 fps99.7%
Hodgdon H380<<locked>>90%46,644 psi80%3337 fps95%
Hodgdon H4895<<locked>>80%39,639 psi68%3186 fps95.6%
Hodgdon Hybrid 100V<<locked>>96%38,551 psi66%3173 fps95.1%
Hodgdon LEVERevolution<<locked>>84%38,087 psi66%3192 fps95.6%
Hodgdon TrailBoss<<locked>>80%25,657 psi44%1991 fps100%
Hodgdon VARGET<<locked>>84%40,161 psi69%3182 fps95.8%
IMR 3031<<locked>>80%35,012 psi60%3114 fps99%
IMR 4064<<locked>>88%41,945 psi72%3205 fps95.2%
IMR 4198<<locked>>80%48,399 psi83%3291 fps100%
IMR 4895<<locked>>84%40,930 psi71%3245 fps95.5%
IMR 8208 XBR<<locked>>80%41,350 psi71%3196 fps96.9%
Lovex D073.5<<locked>>80%46,296 psi80%3297 fps98.8%
Lovex D073.6<<locked>>80%37,666 psi65%3140 fps97.6%
Lovex S060<<locked>>80%39,769 psi69%3110 fps95.1%
Lovex S062<<locked>>82%37,057 psi64%3097 fps95.7%
Norma 201<<locked>>80%38,450 psi66%3123 fps96.2%
Norma 202<<locked>>80%38,653 psi67%3146 fps98.5%
Norma 203B<<locked>>86%42,032 psi72%3258 fps95.8%
Norma URP<<locked>>98%45,237 psi78%3363 fps95.2%
Ramshot Big Game<<locked>>86%41,916 psi72%3264 fps95.5%
Ramshot Wild Boar<<locked>>80%40,451 psi70%3199 fps95.2%
Ramshot X-Terminator<<locked>>80%44,933 psi77%3251 fps96.5%
ReloadSwiss RS 14<<locked>>80%25,831 psi45%2037 fps100%
ReloadSwiss RS 40<<locked>>80%46,485 psi80%3314 fps99.1%
ReloadSwiss RS 52<<locked>>86%44,831 psi77%3392 fps95.9%
ReloadSwiss RS 6034.5 gr84%34,316 psi59%3133 fps95.8%
ReloadSwiss RS 62<<locked>>98%45,411 psi78%3386 fps95%
Rottweil R 901<<locked>>80%42,061 psi73%3202 fps98.9%
Rottweil R 902<<locked>>80%36,361 psi63%3058 fps95.4%
Rottweil R 903<<locked>>88%39,175 psi68%3182 fps95.7%
Shooters World Match Rifle<<locked>>80%37,666 psi65%3140 fps97.6%
Shooters World Precision<<locked>>82%37,057 psi64%3097 fps95.7%
SNPE Vectan SP 11<<locked>>88%40,741 psi70%3245 fps95.2%
SNPE Vectan SP 3<<locked>>80%48,979 psi84%3346 fps100%
SNPE Vectan SP 7<<locked>>86%48,776 psi84%3350 fps95.5%
SNPE Vectan SP 9<<locked>>82%40,480 psi70%3189 fps95.2%
SNPE Vectan Tubal 3000<<locked>>80%40,074 psi69%3104 fps98.7%
SNPE Vectan Tubal 5000<<locked>>80%32,982 psi57%2927 fps98%
Somchem S321<<locked>>80%44,759 psi77%3291 fps98.1%
Somchem S335<<locked>>80%39,581 psi68%3100 fps99.2%
Somchem S341<<locked>>82%41,945 psi72%3209 fps95.7%
Somchem S355<<locked>>86%37,797 psi65%3133 fps95%
Somchem S365<<locked>>94%35,418 psi61%3156 fps95.5%
Vihtavuori N130<<locked>>80%44,338 psi76%3192 fps100%
Vihtavuori N133<<locked>>80%37,420 psi65%3051 fps99.7%
Vihtavuori N135<<locked>>80%35,491 psi61%3071 fps99.6%
Vihtavuori N140<<locked>>80%36,027 psi62%3058 fps98.2%
Vihtavuori N150<<locked>>88%34,243 psi59%3015 fps95.4%
Vihtavuori N160<<locked>>96%46,818 psi81%3346 fps95.5%
Vihtavuori N530<<locked>>80%43,236 psi75%3258 fps97.6%
Vihtavuori N540<<locked>>80%35,636 psi61%3064 fps97.6%
Vihtavuori N550<<locked>>96%47,340 psi82%3406 fps95.6%
Winchester 6.5 StaBALL<<locked>>92%39,842 psi69%3150 fps95.8%
Winchester 748<<locked>>80%43,874 psi76%3314 fps98.4%
Winchester StaBALL Match<<locked>>80%46,731 psi81%3350 fps97.7%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 79 powders for .22-250 Ackley Improved loaded with the .224 | 58gr | Peregrine Plainsmaster (VLR-4). ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,586 fps; across all powders the maximum-charge window runs from 2,215 fps to 3,586 fps. Accurate 4350 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (400 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 58.0 gr projectile in 0.224" calls for a 1:8.5 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .22-250 Ackley Improved with the .224 | 58gr | Peregrine Plainsmaster (VLR-4) 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.

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