Load data for .308 Win. Ackley Improved + .308 | 220gr | Remington SP Core-Lokt

.308 Win. Ackley Improved cartridge drawing
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Load Specifications

Bullet Manufacturer:Remington
Bullet Weight:220 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.014"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:59 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:60,191 psi
Recommended Twist Rate:1:6.0

Load data in caliber .308 Win. Ackley Improved with .308 | 220gr | Remington SP Core-Lokt bullet and 101 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Superformance, Alliant Reloder-17 and ReloadSwiss RS 60.

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>>82%51,677 psi86%2244 fps100%
Accurate 2495<<locked>>88%53,142 psi88%2306 fps100%
Accurate 2520<<locked>>82%51,343 psi85%2323 fps100%
Accurate 2700<<locked>>88%52,301 psi87%2313 fps97.6%
Accurate 3100ᴾ<<locked>>100%40,059 psi67%2238 fps96.9%
Accurate 4064<<locked>>90%53,229 psi88%2349 fps100%
Accurate 4350<<locked>>98%52,547 psi87%2428 fps99.9%
ADI AR 2206H<<locked>>86%53,795 psi89%2379 fps100%
ADI AR 2208<<locked>>90%51,663 psi86%2339 fps99.9%
ADI Benchmark 8208<<locked>>84%52,837 psi88%2333 fps100%
Alliant AR-Comp<<locked>>84%53,795 psi89%2310 fps100%
Alliant Power Pro 2000-MR<<locked>>88%53,084 psi88%2484 fps100%
Alliant Power Pro Varmintᴾ<<locked>>100%47,732 psi79%2362 fps95.9%
Alliant Power Pro Varmintᴾ<<locked>>100%47,732 psi79%2362 fps95.9%
Alliant Reloder- TS 15.5<<locked>>90%51,227 psi85%2356 fps100%
Alliant Reloder-15<<locked>>88%52,025 psi86%2375 fps100%
Alliant Reloder-16ᴾ<<locked>>100%53,983 psi90%2477 fps100%
Alliant Reloder-17<<locked>>94%51,547 psi86%2464 fps100%
Alliant Reloder-19ᴾ<<locked>>100%47,036 psi78%2356 fps95.8%
Alliant Reloder-23ᴾ<<locked>>100%38,508 psi64%2264 fps99.5%
Alliant Reloder-26ᴾ<<locked>>100%42,554 psi71%2398 fps98.8%
Baschieri & Pellagri 107<<locked>>86%53,316 psi89%2395 fps99.9%
Bofors RP3<<locked>>90%51,532 psi86%2369 fps100%
Bofors RP7<<locked>>94%52,083 psi87%2349 fps97.8%
Hodgdon Benchmark<<locked>>82%51,401 psi85%2277 fps100%
Hodgdon BL-C2<<locked>>84%51,953 psi86%2362 fps100%
Hodgdon CFE223<<locked>>82%53,969 psi90%2448 fps100%
Hodgdon H380<<locked>>90%52,576 psi87%2382 fps99.7%
Hodgdon H414<<locked>>96%51,837 psi86%2428 fps98.4%
Hodgdon H4350<<locked>>94%52,852 psi88%2395 fps97.4%
Hodgdon H4895<<locked>>86%54,375 psi90%2385 fps100%
Hodgdon Hybrid 100Vᴾ<<locked>>100%50,256 psi83%2369 fps100%
Hodgdon LEVERevolution<<locked>>88%53,505 psi89%2418 fps100%
Hodgdon Superformance<<locked>>96%52,199 psi87%2457 fps98.1%
Hodgdon TrailBossᴾ<<locked>>100%35,505 psi59%1414 fps100%
Hodgdon VARGET<<locked>>86%51,996 psi86%2343 fps100%
IMR 3031<<locked>>86%54,447 psi90%2365 fps100%
IMR 4064<<locked>>90%54,389 psi90%2365 fps100%
IMR 4166 Enduron<<locked>>88%54,273 psi90%2349 fps98.6%
IMR 4350<<locked>>98%51,967 psi86%2369 fps97.8%
IMR 4451 Enduron<<locked>>94%53,954 psi90%2375 fps98.5%
IMR 4831ᴾ<<locked>>100%52,881 psi88%2418 fps99.9%
IMR 4895<<locked>>88%53,272 psi89%2398 fps100%
IMR 8208 XBR<<locked>>84%52,837 psi88%2333 fps100%
Lovex D073.6<<locked>>86%53,461 psi89%2356 fps100%
Lovex S060<<locked>>86%53,330 psi89%2313 fps100%
Lovex S062<<locked>>90%53,867 psi89%2356 fps100%
Lovex S065<<locked>>96%53,214 psi88%2369 fps99.3%
Lovex S070<<locked>>98%53,693 psi89%2395 fps98.7%
Norma 201<<locked>>86%52,707 psi88%2333 fps100%
Norma 202<<locked>>86%53,098 psi88%2329 fps100%
Norma 203B<<locked>>90%54,244 psi90%2405 fps100%
Norma 204<<locked>>98%52,199 psi87%2408 fps96.7%
Norma MRPᴾ<<locked>>100%42,859 psi71%2362 fps96.4%
Norma URP<<locked>>98%51,488 psi86%2415 fps99.8%
Ramshot Big Game<<locked>>88%51,300 psi85%2385 fps100%
Ramshot Hunterᴾ<<locked>>100%53,969 psi90%2464 fps99.3%
Ramshot TAC<<locked>>84%52,823 psi88%2356 fps99.4%
Ramshot Wild Boar<<locked>>84%52,388 psi87%2369 fps100%
Ramshot X-Terminator<<locked>>82%53,447 psi89%2336 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%35,926 psi60%1450 fps100%
ReloadSwiss RS 50<<locked>>90%52,866 psi88%2365 fps98.9%
ReloadSwiss RS 52<<locked>>86%52,199 psi87%2431 fps100%
ReloadSwiss RS 60<<locked>>92%51,198 psi85%2457 fps100%
ReloadSwiss RS 62<<locked>>98%52,040 psi86%2451 fps99.8%
ReloadSwiss RS 70<<locked>>98%51,735 psi86%2474 fps99.7%
Rottweil R 901<<locked>>84%53,635 psi89%2310 fps100%
Rottweil R 902<<locked>>88%53,055 psi88%2329 fps100%
Rottweil R 903<<locked>>92%51,430 psi85%2362 fps100%
Rottweil R 907<<locked>>94%52,083 psi87%2349 fps97.8%
Shooters World Long Rifle<<locked>>96%53,214 psi88%2369 fps99.3%
Shooters World Match Rifle<<locked>>86%53,461 psi89%2356 fps100%
Shooters World Precision<<locked>>90%53,867 psi89%2356 fps100%
Shooters World SW4350<<locked>>98%53,693 psi89%2395 fps98.7%
SNPE Vectan SP 11<<locked>>92%53,084 psi88%2415 fps100%
SNPE Vectan SP 7<<locked>>84%51,285 psi85%2336 fps99.5%
SNPE Vectan SP 9<<locked>>86%52,243 psi87%2359 fps100%
SNPE Vectan Tubal 3000<<locked>>86%54,215 psi90%2274 fps100%
SNPE Vectan Tubal 5000<<locked>>92%54,302 psi90%2277 fps100%
SNPE Vectan Tubal 7000<<locked>>96%53,316 psi89%2326 fps98.4%
Somchem S321<<locked>>82%53,867 psi89%2362 fps100%
Somchem S335<<locked>>86%53,621 psi89%2274 fps100%
Somchem S341<<locked>>86%54,418 psi90%2372 fps100%
Somchem S355<<locked>>92%51,837 psi86%2359 fps100%
Somchem S365ᴾ<<locked>>100%49,501 psi82%2418 fps100%
Somchem S385ᴾ<<locked>>100%46,093 psi77%2323 fps96.7%
Vihtavuori N130<<locked>>82%53,911 psi90%2238 fps100%
Vihtavuori N133<<locked>>86%54,462 psi90%2260 fps100%
Vihtavuori N135<<locked>>88%52,736 psi88%2293 fps100%
Vihtavuori N140<<locked>>88%53,534 psi89%2313 fps100%
Vihtavuori N150<<locked>>94%53,200 psi88%2339 fps100%
Vihtavuori N160<<locked>>98%54,302 psi90%2415 fps99.9%
Vihtavuori N530<<locked>>84%53,403 psi89%2336 fps100%
Vihtavuori N540<<locked>>88%51,634 psi86%2313 fps100%
Vihtavuori N550<<locked>>98%53,084 psi88%2421 fps99.8%
Vihtavuori N555ᴾ<<locked>>100%42,018 psi70%2326 fps99.4%
Winchester 6.5 StaBALL<<locked>>98%54,288 psi90%2395 fps100%
Winchester 748<<locked>>84%52,895 psi88%2375 fps100%
Winchester 760<<locked>>96%52,141 psi87%2431 fps98.5%
Winchester StaBALL HDᴾ<<locked>>100%34,418 psi57%2274 fps99.5%
Winchester StaBALL Match<<locked>>86%51,895 psi86%2362 fps100%

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%48,414 psi80%2205 fps100%
Accurate 2495<<locked>>80%41,220 psi68%2152 fps100%
Accurate 2520<<locked>>80%48,153 psi80%2280 fps100%
Accurate 2700<<locked>>82%43,308 psi72%2182 fps95.6%
Accurate 3100<<locked>>96%34,925 psi58%2142 fps95.4%
Accurate 4064<<locked>>80%38,972 psi65%2152 fps100%
Accurate 4350<<locked>>82%30,356 psi50%2057 fps95.7%
ADI AR 2206H<<locked>>80%44,527 psi74%2247 fps99.7%
ADI AR 2208<<locked>>80%38,000 psi63%2126 fps98.4%
ADI Benchmark 8208<<locked>>80%46,572 psi77%2251 fps100%
Alliant AR-Comp<<locked>>80%47,224 psi78%2231 fps100%
Alliant Power Pro 2000-MR<<locked>>80%40,480 psi67%2283 fps98.9%
Alliant Power Pro Varmint<<locked>>98%44,817 psi74%2316 fps95.1%
Alliant Power Pro Varmint<<locked>>98%44,817 psi74%2316 fps95.1%
Alliant Reloder- TS 15.5<<locked>>80%37,594 psi62%2146 fps99.4%
Alliant Reloder-15<<locked>>80%40,277 psi67%2198 fps99%
Alliant Reloder-16<<locked>>80%29,269 psi49%2024 fps95%
Alliant Reloder-1741.2 gr80%32,460 psi54%2129 fps98.2%
Alliant Reloder-19<<locked>>98%44,179 psi73%2310 fps95%
Alliant Reloder-23<<locked>>88%26,832 psi45%1995 fps95.5%
Alliant Reloder-26<<locked>>92%32,430 psi54%2188 fps95.6%
Baschieri & Pellagri 107<<locked>>80%43,642 psi73%2254 fps99.1%
Bofors RP3<<locked>>80%37,304 psi62%2152 fps99.5%
Bofors RP7<<locked>>86%40,654 psi68%2169 fps95.2%
Hodgdon Benchmark<<locked>>80%48,312 psi80%2234 fps100%
Hodgdon BL-C2<<locked>>80%45,411 psi75%2274 fps100%
Hodgdon CFE223<<locked>>80%50,227 psi83%2398 fps99.9%
Hodgdon H380<<locked>>80%38,029 psi63%2152 fps97.5%
Hodgdon H414<<locked>>86%37,507 psi62%2195 fps95.1%
Hodgdon H4350<<locked>>88%43,685 psi73%2254 fps95.3%
Hodgdon H4895<<locked>>80%44,918 psi75%2257 fps99.9%
Hodgdon Hybrid 100V<<locked>>80%26,890 psi45%1946 fps95.9%
Hodgdon LEVERevolution<<locked>>80%40,988 psi68%2238 fps99.8%
Hodgdon Superformance47.9 gr88%39,668 psi66%2254 fps95%
Hodgdon TrailBoss<<locked>>80%26,455 psi44%1263 fps100%
Hodgdon VARGET<<locked>>80%43,192 psi72%2218 fps99.8%
IMR 3031<<locked>>80%44,715 psi74%2244 fps100%
IMR 4064<<locked>>80%39,914 psi66%2152 fps99%
IMR 4166 Enduron<<locked>>80%42,264 psi70%2169 fps96.3%
IMR 4350<<locked>>90%40,640 psi68%2195 fps95.2%
IMR 4451 Enduron<<locked>>84%39,755 psi66%2152 fps95.5%
IMR 4831<<locked>>82%29,791 psi49%2028 fps95.5%
IMR 4895<<locked>>80%41,249 psi69%2221 fps99.5%
IMR 8208 XBR<<locked>>80%46,572 psi77%2251 fps100%
Lovex D073.6<<locked>>80%43,642 psi73%2228 fps100%
Lovex S060<<locked>>80%44,788 psi74%2192 fps99.7%
Lovex S062<<locked>>80%39,900 psi66%2156 fps99.8%
Lovex S065<<locked>>82%34,708 psi58%2067 fps95.6%
Lovex S070<<locked>>86%37,173 psi62%2136 fps95.1%
Norma 201<<locked>>80%43,816 psi73%2208 fps100%
Norma 202<<locked>>80%44,063 psi73%2211 fps100%
Norma 203B<<locked>>80%39,639 psi66%2188 fps99.2%
Norma 204<<locked>>94%45,818 psi76%2313 fps95.2%
Norma MRP<<locked>>98%40,205 psi67%2313 fps95.5%
Norma URP<<locked>>82%31,038 psi52%2060 fps95.7%
Ramshot Big Game<<locked>>80%39,146 psi65%2201 fps99.1%
Ramshot Hunter<<locked>>88%36,709 psi61%2188 fps95.7%
Ramshot TAC<<locked>>80%46,441 psi77%2264 fps98.6%
Ramshot Wild Boar<<locked>>80%45,934 psi76%2277 fps99.8%
Ramshot X-Terminator<<locked>>80%50,314 psi84%2293 fps100%
ReloadSwiss RS 14<<locked>>80%26,934 psi45%1296 fps100%
ReloadSwiss RS 50<<locked>>80%38,392 psi64%2139 fps95.9%
ReloadSwiss RS 52<<locked>>80%42,337 psi70%2287 fps99.3%
ReloadSwiss RS 6041.2 gr80%34,577 psi57%2182 fps99.9%
ReloadSwiss RS 62<<locked>>82%30,168 psi50%2070 fps95.1%
ReloadSwiss RS 70<<locked>>84%32,590 psi54%2123 fps95%
Rottweil R 901<<locked>>80%47,848 psi79%2234 fps100%
Rottweil R 902<<locked>>80%41,626 psi69%2165 fps99.9%
Rottweil R 903<<locked>>80%35,012 psi58%2103 fps98.9%
Rottweil R 907<<locked>>86%40,654 psi68%2169 fps95.2%
Shooters World Long Rifle<<locked>>82%34,708 psi58%2067 fps95.6%
Shooters World Match Rifle<<locked>>80%43,642 psi73%2228 fps100%
Shooters World Precision<<locked>>80%39,900 psi66%2156 fps99.8%
Shooters World SW4350<<locked>>86%37,173 psi62%2136 fps95.1%
SNPE Vectan SP 11<<locked>>80%35,882 psi60%2146 fps98.5%
SNPE Vectan SP 7<<locked>>80%44,817 psi74%2241 fps98.7%
SNPE Vectan SP 9<<locked>>80%43,018 psi71%2224 fps99.6%
SNPE Vectan Tubal 3000<<locked>>80%45,107 psi75%2159 fps100%
SNPE Vectan Tubal 5000<<locked>>80%37,565 psi62%2054 fps100%
SNPE Vectan Tubal 7000<<locked>>86%38,638 psi64%2110 fps95.4%
Somchem S321<<locked>>80%50,299 psi84%2316 fps100%
Somchem S335<<locked>>80%44,730 psi74%2162 fps100%
Somchem S341<<locked>>80%44,425 psi74%2238 fps99.7%
Somchem S355<<locked>>80%35,940 psi60%2110 fps98.9%
Somchem S365<<locked>>80%26,034 psi43%1975 fps97.1%
Somchem S385<<locked>>96%40,480 psi67%2231 fps95.2%
Vihtavuori N130<<locked>>80%50,923 psi85%2201 fps100%
Vihtavuori N133<<locked>>80%45,426 psi75%2149 fps100%
Vihtavuori N135<<locked>>80%41,176 psi68%2146 fps100%
Vihtavuori N140<<locked>>80%41,698 psi69%2156 fps100%
Vihtavuori N150<<locked>>80%34,084 psi57%2054 fps99.4%
Vihtavuori N160<<locked>>80%30,255 psi50%2014 fps95.3%
Vihtavuori N530<<locked>>80%46,876 psi78%2247 fps100%
Vihtavuori N540<<locked>>80%40,132 psi67%2152 fps100%
Vihtavuori N550<<locked>>82%31,778 psi53%2064 fps95.7%
Vihtavuori N555<<locked>>88%28,572 psi47%2057 fps95.7%
Winchester 6.5 StaBALL<<locked>>80%30,139 psi50%1998 fps97.4%
Winchester 748<<locked>>80%46,470 psi77%2290 fps100%
Winchester 760<<locked>>86%37,507 psi62%2195 fps95.1%
Winchester StaBALL HD<<locked>>92%26,760 psi44%2060 fps95.9%
Winchester StaBALL Match<<locked>>80%42,583 psi71%2231 fps99.8%

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 101 powders for .308 Win. Ackley Improved loaded with the .308 | 220gr | Remington SP Core-Lokt. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,484 fps; across all powders the maximum-charge window runs from 1,414 fps to 2,484 fps. Accurate 3100 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (415 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Power Pro Varmint, Alliant Power Pro Varmint 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. Hodgdon Superformance, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .308 Win. Ackley Improved with the .308 | 220gr | Remington SP Core-Lokt 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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