Load data for .30-30 Ackley Improved + .308 | 123gr | Sako Gamehead

.30-30 Ackley Improved cartridge drawing
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Load Specifications

Bullet Manufacturer:SAKO
Bullet Weight:123 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.03"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:48.6 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:46,412 psi

Load data in caliber .30-30 Ackley Improved with .308 | 123gr | Sako Gamehead bullet and 24 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-10x, Norma 200 and Alliant AR-Comp.

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%40,698 psi88%2510 fps98.9%
Accurate 2015<<locked>>96%39,479 psi85%2566 fps97.9%
Accurate 2495ᴾ<<locked>>100%33,141 psi71%2513 fps96.8%
Accurate LT-30<<locked>>88%41,785 psi90%2513 fps96.9%
ADI AR 2207<<locked>>86%40,263 psi87%2579 fps100%
ADI AR 2219<<locked>>90%41,466 psi89%2628 fps96.6%
Alliant AR-Compᴾ<<locked>>100%41,640 psi90%2684 fps99.9%
Alliant Reloder-10x<<locked>>92%40,698 psi88%2612 fps99%
Alliant Reloder-7<<locked>>84%39,842 psi86%2536 fps99.1%
Baschieri & Pellagri 106<<locked>>88%39,711 psi86%2493 fps96.8%
Hodgdon H322<<locked>>96%41,843 psi90%2638 fps96.7%
Hodgdon H4198<<locked>>86%40,669 psi88%2510 fps95.9%
Hodgdon TrailBossᴾ<<locked>>100%30,980 psi67%1670 fps100%
IMR 3031ᴾ<<locked>>100%35,853 psi77%2572 fps95.9%
IMR 4198<<locked>>90%40,625 psi88%2562 fps99.5%
Norma 200<<locked>>88%40,654 psi88%2595 fps99.4%
ReloadSwiss RS 14ᴾ<<locked>>100%30,879 psi67%1713 fps100%
SNPE Vectan BA6 1/2<<locked>>84%41,524 psi89%2369 fps100%
SNPE Vectan SP 3<<locked>>92%41,437 psi89%2605 fps97.6%
Somchem S335<<locked>>98%40,074 psi86%2539 fps96.2%
Vihtavuori N120<<locked>>88%40,059 psi86%2530 fps100%
Vihtavuori N130<<locked>>94%40,814 psi88%2549 fps98.8%
Vihtavuori N133ᴾ<<locked>>100%39,769 psi86%2536 fps97.8%
Vihtavuori N135ᴾ<<locked>>100%35,563 psi77%2536 fps97.1%

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%38,058 psi82%2461 fps98.4%
Accurate 2015<<locked>>88%30,879 psi67%2388 fps95.3%
Accurate 2495<<locked>>96%28,761 psi62%2415 fps95.2%
Accurate LT-30<<locked>>84%36,854 psi79%2421 fps95.5%
ADI AR 2207<<locked>>80%33,373 psi72%2448 fps99.8%
ADI AR 2219<<locked>>88%38,696 psi83%2575 fps95.8%
Alliant AR-Comp30.7 gr84%25,338 psi55%2293 fps95.1%
Alliant Reloder-10x28.5 gr80%27,789 psi60%2329 fps95.3%
Alliant Reloder-7<<locked>>80%35,041 psi76%2438 fps98.2%
Baschieri & Pellagri 106<<locked>>84%34,969 psi75%2398 fps95.3%
Hodgdon H322<<locked>>92%36,767 psi79%2536 fps95.2%
Hodgdon H4198<<locked>>84%38,305 psi83%2464 fps95.2%
Hodgdon TrailBoss<<locked>>80%22,829 psi49%1499 fps100%
IMR 3031<<locked>>98%33,736 psi73%2523 fps95%
IMR 4198<<locked>>80%30,284 psi65%2339 fps97.1%
Norma 20029.5 gr80%31,343 psi68%2405 fps97.5%
ReloadSwiss RS 14<<locked>>80%22,626 psi49%1535 fps100%
SNPE Vectan BA6 1/2<<locked>>80%37,362 psi81%2306 fps100%
SNPE Vectan SP 3<<locked>>86%34,534 psi74%2467 fps95.5%
Somchem S335<<locked>>96%37,521 psi81%2490 fps95.4%
Vihtavuori N120<<locked>>80%31,473 psi68%2369 fps99.9%
Vihtavuori N130<<locked>>82%28,181 psi61%2283 fps95.1%
Vihtavuori N133<<locked>>92%31,647 psi68%2369 fps95.2%
Vihtavuori N135<<locked>>96%31,531 psi68%2444 fps95.7%

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 24 powders for .30-30 Ackley Improved loaded with the .308 | 123gr | Sako Gamehead. Alliant AR-Comp delivers the highest muzzle velocity at 2,684 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,684 fps. Accurate 2495 gives the best case fill at 100 %, and 24 of the 24 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (320 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. Accurate 2495, Alliant AR-Comp, 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. Alliant Reloder-10x, Norma 200, Alliant AR-Comp rank at the top here: for .30-30 Ackley Improved with the .308 | 123gr | Sako Gamehead 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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