Load data for .308 Win. Ackley Improved + .308 | 152gr | MRR Green Hunting

.308 Win. Ackley Improved cartridge drawing
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Load Specifications

Bullet Manufacturer:MRR
Bullet Weight:152 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:1:13.5

Load data in caliber .308 Win. Ackley Improved with .308 | 152gr | MRR Green Hunting bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 1200-R and Winchester 748.

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 1680<<locked>>82%52,721 psi88%2651 fps100%
Accurate 2015<<locked>>94%51,416 psi85%2713 fps100%
Accurate 2200<<locked>>86%53,113 psi88%2795 fps97%
Accurate 2230<<locked>>86%53,461 psi89%2802 fps97.5%
Accurate 2460<<locked>>92%53,432 psi89%2776 fps99.9%
Accurate 2495ᴾ<<locked>>100%49,879 psi83%2753 fps100%
Accurate 2520<<locked>>94%50,807 psi84%2776 fps99.6%
Accurate 4064ᴾ<<locked>>100%46,209 psi77%2730 fps99.7%
Accurate LT-30<<locked>>88%53,722 psi89%2677 fps100%
Accurate LT-32<<locked>>88%54,143 psi90%2694 fps99.8%
ADI AR 2206H<<locked>>98%54,027 psi90%2825 fps98%
ADI AR 2207<<locked>>86%54,360 psi90%2703 fps100%
ADI AR 2208ᴾ<<locked>>100%48,762 psi81%2713 fps96.2%
ADI AR 2219<<locked>>88%52,968 psi88%2785 fps100%
ADI Benchmark 8208<<locked>>96%53,940 psi90%2792 fps98.9%
Alliant AR-Comp<<locked>>96%51,779 psi86%2785 fps100%
Alliant Power Pro 1200-R<<locked>>90%51,358 psi85%2841 fps98.3%
Alliant Power Pro 2000-MRᴾ<<locked>>100%54,070 psi90%2913 fps96.9%
Alliant Reloder- TS 15.5ᴾ<<locked>>100%46,688 psi78%2730 fps97.7%
Alliant Reloder-10x<<locked>>90%51,982 psi86%2733 fps100%
Alliant Reloder-15ᴾ<<locked>>100%50,908 psi85%2799 fps97%
Alliant Reloder-7<<locked>>84%52,286 psi87%2677 fps100%
Baschieri & Pellagri 106<<locked>>88%52,605 psi87%2674 fps100%
Baschieri & Pellagri 107<<locked>>98%54,027 psi90%2835 fps96.9%
Bofors RP3ᴾ<<locked>>100%46,006 psi76%2730 fps97.6%
Hodgdon Benchmark<<locked>>94%53,476 psi89%2740 fps99.2%
Hodgdon BL-C2<<locked>>96%51,779 psi86%2815 fps99.1%
Hodgdon CFE223<<locked>>94%53,925 psi90%2900 fps97.5%
Hodgdon H322<<locked>>90%51,126 psi85%2762 fps100%
Hodgdon H335<<locked>>90%52,156 psi87%2782 fps99.9%
Hodgdon H4198<<locked>>84%52,417 psi87%2677 fps100%
Hodgdon H4895<<locked>>98%54,433 psi90%2838 fps98.6%
Hodgdon LEVERevolutionᴾ<<locked>>100%52,504 psi87%2858 fps98.7%
Hodgdon TrailBossᴾ<<locked>>100%33,156 psi55%1657 fps100%
Hodgdon VARGET<<locked>>98%52,794 psi88%2789 fps98.2%
IMR 3031<<locked>>98%52,620 psi87%2838 fps100%
IMR 4064ᴾ<<locked>>100%51,314 psi85%2749 fps97%
IMR 4198<<locked>>90%53,113 psi88%2697 fps100%
IMR 4895ᴾ<<locked>>100%52,098 psi87%2831 fps97.8%
IMR 8208 XBR<<locked>>96%53,940 psi90%2792 fps98.9%
Lovex D073.4<<locked>>86%54,143 psi90%2795 fps99.7%
Lovex D073.5<<locked>>92%53,592 psi89%2782 fps99.4%
Lovex D073.6<<locked>>98%51,996 psi86%2805 fps99.7%
Lovex S053<<locked>>82%54,259 psi90%2605 fps100%
Lovex S060<<locked>>96%51,938 psi86%2713 fps97.6%
Lovex S062ᴾ<<locked>>100%49,937 psi83%2749 fps98.5%
Norma 200<<locked>>86%51,721 psi86%2703 fps100%
Norma 201<<locked>>98%52,475 psi87%2772 fps98.8%
Norma 202<<locked>>98%52,576 psi87%2789 fps99.9%
Norma 203Bᴾ<<locked>>100%49,908 psi83%2785 fps97.4%
Ramshot Big Gameᴾ<<locked>>100%50,850 psi84%2808 fps97.2%
Ramshot Wild Boar<<locked>>96%53,142 psi88%2815 fps97.8%
Ramshot X-Terminator<<locked>>92%52,460 psi87%2746 fps97.5%
ReloadSwiss RS 14ᴾ<<locked>>100%33,170 psi55%1693 fps100%
ReloadSwiss RS 40<<locked>>92%53,838 psi89%2789 fps99.7%
ReloadSwiss RS 52ᴾ<<locked>>100%53,679 psi89%2907 fps97.5%
ReloadSwiss RS 60ᴾ<<locked>>100%44,541 psi74%2769 fps98.6%
Rottweil R 901<<locked>>96%53,287 psi89%2769 fps99.9%
Rottweil R 902ᴾ<<locked>>100%52,779 psi88%2769 fps98.8%
Rottweil R 903ᴾ<<locked>>100%42,627 psi71%2661 fps96.5%
Shooters World AR Plus<<locked>>86%54,143 psi90%2795 fps99.7%
Shooters World Match Rifle<<locked>>98%51,996 psi86%2805 fps99.7%
Shooters World Precisionᴾ<<locked>>100%49,937 psi83%2749 fps98.5%
Shooters World Tactical Rifle<<locked>>88%50,894 psi85%2707 fps98.2%
SNPE Vectan BA6 1/2<<locked>>84%51,779 psi86%2418 fps100%
SNPE Vectan SP 10<<locked>>88%53,113 psi88%2789 fps99.9%
SNPE Vectan SP 11ᴾ<<locked>>100%45,440 psi75%2726 fps96.1%
SNPE Vectan SP 3<<locked>>90%53,214 psi88%2749 fps100%
SNPE Vectan SP 9<<locked>>98%52,576 psi87%2795 fps97.7%
SNPE Vectan Tubal 3000<<locked>>96%52,359 psi87%2694 fps99.9%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%48,167 psi80%2641 fps99.9%
Somchem S321<<locked>>92%51,648 psi86%2782 fps98.9%
Somchem S335<<locked>>98%54,128 psi90%2736 fps100%
Somchem S341<<locked>>96%51,663 psi86%2766 fps97.4%
Somchem S355ᴾ<<locked>>100%44,135 psi73%2674 fps96.6%
Vihtavuori N120<<locked>>86%54,302 psi90%2654 fps100%
Vihtavuori N130<<locked>>92%52,518 psi87%2680 fps100%
Vihtavuori N133<<locked>>96%51,895 psi86%2687 fps100%
Vihtavuori N135ᴾ<<locked>>100%50,879 psi85%2753 fps100%
Vihtavuori N140ᴾ<<locked>>100%53,185 psi88%2769 fps100%
Vihtavuori N150ᴾ<<locked>>100%42,540 psi71%2615 fps97.6%
Vihtavuori N530<<locked>>96%54,404 psi90%2792 fps99%
Vihtavuori N540ᴾ<<locked>>100%51,329 psi85%2762 fps99.8%
Winchester 748<<locked>>96%52,866 psi88%2838 fps99.4%
Winchester StaBALL Match<<locked>>98%51,837 psi86%2805 fps98.2%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%49,269 psi82%2605 fps100%
Accurate 2015<<locked>>80%32,996 psi55%2388 fps99.1%
Accurate 2200<<locked>>82%46,398 psi77%2680 fps95.5%
Accurate 2230<<locked>>80%43,033 psi71%2628 fps95.1%
Accurate 2460<<locked>>80%35,462 psi59%2464 fps97.4%
Accurate 2495<<locked>>80%25,048 psi42%2254 fps97.1%
Accurate 2520<<locked>>80%30,864 psi51%2395 fps95.4%
Accurate 4064<<locked>>84%27,195 psi45%2326 fps95.2%
Accurate LT-30<<locked>>80%41,930 psi70%2490 fps99.6%
Accurate LT-32<<locked>>80%42,308 psi70%2503 fps98.5%
ADI AR 2206H<<locked>>90%41,974 psi70%2618 fps95.5%
ADI AR 2207<<locked>>80%45,121 psi75%2575 fps100%
ADI AR 2208<<locked>>98%45,847 psi76%2664 fps95.5%
ADI AR 2219<<locked>>80%40,059 psi67%2575 fps99.3%
ADI Benchmark 8208<<locked>>84%36,811 psi61%2487 fps95.3%
Alliant AR-Comp<<locked>>80%30,313 psi50%2408 fps99.9%
Alliant Power Pro 1200-R38.2 gr82%39,044 psi65%2612 fps95.4%
Alliant Power Pro 2000-MR<<locked>>96%47,108 psi78%2792 fps95.2%
Alliant Reloder- TS 15.5<<locked>>94%38,261 psi64%2572 fps95.5%
Alliant Reloder-10x<<locked>>80%37,971 psi63%2500 fps100%
Alliant Reloder-15<<locked>>96%44,933 psi75%2694 fps95.6%
Alliant Reloder-7<<locked>>80%46,137 psi77%2585 fps100%
Baschieri & Pellagri 106<<locked>>80%40,321 psi67%2480 fps99.5%
Baschieri & Pellagri 107<<locked>>94%47,239 psi78%2726 fps95.4%
Bofors RP3<<locked>>94%37,478 psi62%2572 fps95.4%
Hodgdon Benchmark<<locked>>80%34,592 psi57%2395 fps95.3%
Hodgdon BL-C2<<locked>>84%33,968 psi56%2484 fps95.2%
Hodgdon CFE22344.7 gr88%43,569 psi72%2720 fps95.1%
Hodgdon H322<<locked>>80%36,724 psi61%2507 fps98.8%
Hodgdon H335<<locked>>80%37,130 psi62%2520 fps98%
Hodgdon H4198<<locked>>80%46,296 psi77%2582 fps99.7%
Hodgdon H4895<<locked>>88%39,392 psi65%2575 fps95.4%
Hodgdon LEVERevolution<<locked>>90%37,623 psi63%2582 fps95.1%
Hodgdon TrailBoss<<locked>>80%24,540 psi41%1480 fps100%
Hodgdon VARGET<<locked>>90%40,901 psi68%2585 fps95.7%
IMR 3031<<locked>>80%28,805 psi48%2375 fps97.3%
IMR 4064<<locked>>96%44,947 psi75%2644 fps95.6%
IMR 4198<<locked>>80%39,320 psi65%2484 fps100%
IMR 4895<<locked>>92%40,248 psi67%2621 fps95.1%
IMR 8208 XBR<<locked>>84%36,811 psi61%2487 fps95.3%
Lovex D073.4<<locked>>80%43,642 psi73%2628 fps98.6%
Lovex D073.5<<locked>>80%35,128 psi58%2457 fps96%
Lovex D073.6<<locked>>84%31,981 psi53%2434 fps95.8%
Lovex S053<<locked>>80%50,981 psi85%2562 fps100%
Lovex S060<<locked>>88%40,814 psi68%2520 fps95%
Lovex S062<<locked>>90%36,289 psi60%2497 fps95.4%
Norma 200<<locked>>80%42,815 psi71%2569 fps100%
Norma 201<<locked>>86%35,795 psi59%2470 fps95.1%
Norma 202<<locked>>80%29,428 psi49%2339 fps95.6%
Norma 203B<<locked>>94%41,075 psi68%2628 fps95.3%
Ramshot Big Game<<locked>>96%44,367 psi74%2697 fps95.7%
Ramshot Wild Boar<<locked>>90%43,308 psi72%2651 fps95.7%
Ramshot X-Terminator<<locked>>86%43,062 psi72%2585 fps95.4%
ReloadSwiss RS 14<<locked>>80%24,410 psi41%1512 fps100%
ReloadSwiss RS 40<<locked>>80%36,289 psi60%2477 fps96.8%
ReloadSwiss RS 52<<locked>>94%43,961 psi73%2743 fps95.3%
ReloadSwiss RS 60<<locked>>92%34,200 psi57%2533 fps95.1%
Rottweil R 901<<locked>>80%32,692 psi54%2382 fps96.5%
Rottweil R 902<<locked>>88%36,289 psi60%2474 fps95.3%
Rottweil R 903<<locked>>96%37,376 psi62%2559 fps95%
Shooters World AR Plus<<locked>>80%43,642 psi73%2628 fps98.6%
Shooters World Match Rifle<<locked>>84%31,981 psi53%2434 fps95.8%
Shooters World Precision<<locked>>90%36,289 psi60%2497 fps95.4%
Shooters World Tactical Rifle<<locked>>80%38,479 psi64%2487 fps95.4%
SNPE Vectan BA6 1/2<<locked>>80%46,688 psi78%2352 fps100%
SNPE Vectan SP 10<<locked>>80%40,698 psi68%2582 fps98.7%
SNPE Vectan SP 11<<locked>>98%42,743 psi71%2674 fps95.3%
SNPE Vectan SP 3<<locked>>80%38,754 psi64%2513 fps99.5%
SNPE Vectan SP 9<<locked>>92%43,192 psi72%2638 fps95.7%
SNPE Vectan Tubal 3000<<locked>>80%31,749 psi53%2316 fps96.4%
SNPE Vectan Tubal 5000<<locked>>82%27,311 psi45%2224 fps95.8%
Somchem S321<<locked>>82%36,405 psi60%2503 fps95.6%
Somchem S335<<locked>>80%30,980 psi51%2316 fps97%
Somchem S341<<locked>>90%42,018 psi70%2602 fps95.2%
Somchem S355<<locked>>96%38,899 psi65%2572 fps95.2%
Vihtavuori N120<<locked>>80%45,237 psi75%2530 fps100%
Vihtavuori N130<<locked>>80%36,260 psi60%2415 fps99.9%
Vihtavuori N133<<locked>>80%31,633 psi53%2329 fps98.7%
Vihtavuori N135<<locked>>80%26,498 psi44%2280 fps97.5%
Vihtavuori N140<<locked>>80%27,847 psi46%2280 fps95.3%
Vihtavuori N150<<locked>>94%35,056 psi58%2467 fps95.5%
Vihtavuori N530<<locked>>84%36,564 psi61%2480 fps95.4%
Vihtavuori N540<<locked>>84%30,371 psi50%2359 fps95.7%
Winchester 74841 gr84%35,070 psi58%2510 fps95.8%
Winchester StaBALL Match<<locked>>90%39,291 psi65%2582 fps95.3%

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 85 powders for .308 Win. Ackley Improved loaded with the .308 | 152gr | MRR Green Hunting. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,913 fps. Accurate 2495 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (415 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 152.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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 CFE223, Alliant Power Pro 1200-R, Winchester 748 rank at the top here: for .308 Win. Ackley Improved with the .308 | 152gr | MRR Green Hunting 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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