Load Specifications
Load data in caliber .308 Win. Ackley Improved with .306 | 155gr | Fox Classic Hunter bullet and 84 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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 51,634 psi | 86% | 2595 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 53,780 psi | 89% | 2700 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 51,967 psi | 86% | 2733 fps | 96.7% |
| Accurate 2230 | <<locked>> | 86% | 52,112 psi | 87% | 2740 fps | 97.1% |
| Accurate 2460 | <<locked>> | 92% | 52,330 psi | 87% | 2717 fps | 99.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 48,617 psi | 81% | 2694 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 53,258 psi | 88% | 2769 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 45,121 psi | 75% | 2671 fps | 99.6% |
| Accurate LT-30 | <<locked>> | 88% | 52,924 psi | 88% | 2621 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 53,374 psi | 89% | 2638 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 98% | 52,707 psi | 88% | 2759 fps | 97.8% |
| ADI AR 2207 | <<locked>> | 86% | 53,171 psi | 88% | 2648 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 47,529 psi | 79% | 2651 fps | 95.9% |
| ADI AR 2219 | <<locked>> | 88% | 51,619 psi | 86% | 2726 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 52,547 psi | 87% | 2730 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 98% | 53,911 psi | 90% | 2772 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 53,287 psi | 89% | 2828 fps | 98.5% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 52,866 psi | 88% | 2848 fps | 96.5% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 45,339 psi | 75% | 2667 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 92% | 54,099 psi | 90% | 2717 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 49,647 psi | 82% | 2733 fps | 96.7% |
| Alliant Reloder-7 | <<locked>> | 84% | 51,227 psi | 85% | 2618 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 51,256 psi | 85% | 2615 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 52,707 psi | 88% | 2772 fps | 96.6% |
| Bofors RP3ᴾ | <<locked>> | 100% | 44,773 psi | 74% | 2671 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 94% | 52,388 psi | 87% | 2680 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 98% | 53,998 psi | 90% | 2805 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 94% | 52,402 psi | 87% | 2831 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 92% | 53,563 psi | 89% | 2753 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 51,111 psi | 85% | 2723 fps | 99.8% |
| Hodgdon H4198 | <<locked>> | 84% | 51,459 psi | 85% | 2618 fps | 100% |
| Hodgdon H4895 | <<locked>> | 98% | 53,055 psi | 88% | 2776 fps | 98.3% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 51,126 psi | 85% | 2792 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,967 psi | 55% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 51,808 psi | 86% | 2733 fps | 98% |
| IMR 3031 | <<locked>> | 98% | 50,879 psi | 85% | 2772 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 49,951 psi | 83% | 2684 fps | 96.7% |
| IMR 4198 | <<locked>> | 90% | 52,388 psi | 87% | 2644 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 50,792 psi | 84% | 2769 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 96% | 52,547 psi | 87% | 2730 fps | 98.7% |
| Lovex D073.4 | <<locked>> | 86% | 52,779 psi | 88% | 2730 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 92% | 52,199 psi | 87% | 2720 fps | 99.3% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 54,172 psi | 90% | 2792 fps | 99.8% |
| Lovex S053 | <<locked>> | 82% | 53,214 psi | 88% | 2549 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 54,114 psi | 90% | 2700 fps | 97.9% |
| Lovex S062ᴾ | <<locked>> | 100% | 48,588 psi | 81% | 2687 fps | 98.3% |
| Norma 200 | <<locked>> | 88% | 54,143 psi | 90% | 2694 fps | 100% |
| Norma 201 | <<locked>> | 98% | 51,430 psi | 85% | 2717 fps | 98.7% |
| Norma 202 | <<locked>> | 98% | 51,459 psi | 85% | 2730 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 48,660 psi | 81% | 2723 fps | 97.1% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 49,676 psi | 83% | 2746 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 96% | 52,040 psi | 86% | 2756 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 92% | 51,242 psi | 85% | 2684 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,982 psi | 55% | 1657 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 52,649 psi | 87% | 2726 fps | 99.6% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 52,489 psi | 87% | 2844 fps | 97.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 43,439 psi | 72% | 2703 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 96% | 52,286 psi | 87% | 2710 fps | 99.8% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 51,372 psi | 85% | 2703 fps | 98.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 41,408 psi | 69% | 2598 fps | 96.1% |
| Shooters World AR Plus | <<locked>> | 86% | 52,779 psi | 88% | 2730 fps | 99.6% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 54,172 psi | 90% | 2792 fps | 99.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 48,588 psi | 81% | 2687 fps | 98.3% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 53,548 psi | 89% | 2700 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 53,911 psi | 90% | 2405 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 51,938 psi | 86% | 2730 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 51,880 psi | 86% | 2687 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 51,372 psi | 85% | 2736 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 51,445 psi | 85% | 2638 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,137 psi | 78% | 2585 fps | 99.9% |
| Somchem S321 | <<locked>> | 94% | 53,679 psi | 89% | 2766 fps | 99.1% |
| Somchem S335 | <<locked>> | 98% | 53,069 psi | 88% | 2680 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 53,998 psi | 90% | 2756 fps | 97.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 43,265 psi | 72% | 2618 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 86% | 53,171 psi | 88% | 2598 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 54,418 psi | 90% | 2664 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 53,983 psi | 90% | 2674 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 49,617 psi | 82% | 2694 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 51,851 psi | 86% | 2707 fps | 99.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 41,394 psi | 69% | 2556 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 96% | 53,316 psi | 89% | 2733 fps | 98.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 50,212 psi | 83% | 2703 fps | 99.7% |
| Winchester 748 | <<locked>> | 96% | 51,213 psi | 85% | 2769 fps | 99.2% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 54,172 psi | 90% | 2795 fps | 98.5% |
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 1680 | <<locked>> | 80% | 48,414 psi | 80% | 2549 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,271 psi | 54% | 2336 fps | 99% |
| Accurate 2200 | <<locked>> | 82% | 45,527 psi | 76% | 2621 fps | 95.2% |
| Accurate 2230 | <<locked>> | 82% | 45,223 psi | 75% | 2625 fps | 95.7% |
| Accurate 2460 | <<locked>> | 80% | 34,461 psi | 57% | 2405 fps | 97.1% |
| Accurate 2495 | <<locked>> | 80% | 24,424 psi | 41% | 2205 fps | 96.9% |
| Accurate 2520 | <<locked>> | 80% | 30,139 psi | 50% | 2343 fps | 95.1% |
| Accurate 4064 | <<locked>> | 86% | 28,311 psi | 47% | 2323 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 41,249 psi | 69% | 2438 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 80% | 41,626 psi | 69% | 2448 fps | 98.3% |
| ADI AR 2206H | <<locked>> | 90% | 40,843 psi | 68% | 2556 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 44,179 psi | 73% | 2520 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 44,585 psi | 74% | 2602 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 39,175 psi | 65% | 2520 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 86% | 38,218 psi | 63% | 2477 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 29,660 psi | 49% | 2356 fps | 99.9% |
| Alliant Power Pro 1200-R | 36.8 gr | 82% | 38,159 psi | 63% | 2552 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 49,240 psi | 82% | 2785 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 37,246 psi | 62% | 2513 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,159 psi | 62% | 2448 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 43,642 psi | 73% | 2631 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,368 psi | 75% | 2533 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,711 psi | 66% | 2431 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 45,905 psi | 76% | 2661 fps | 95% |
| Bofors RP3 | <<locked>> | 94% | 36,463 psi | 61% | 2513 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,055 psi | 57% | 2343 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 86% | 35,665 psi | 59% | 2487 fps | 95.7% |
| Hodgdon CFE223 | 44.1 gr | 90% | 45,774 psi | 76% | 2720 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 35,795 psi | 59% | 2451 fps | 98.5% |
| Hodgdon H335 | <<locked>> | 80% | 36,187 psi | 60% | 2464 fps | 97.8% |
| Hodgdon H4198 | <<locked>> | 80% | 45,556 psi | 76% | 2526 fps | 99.6% |
| Hodgdon H4895 | <<locked>> | 88% | 38,493 psi | 64% | 2516 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 39,407 psi | 65% | 2582 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,323 psi | 40% | 1447 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 40,118 psi | 67% | 2530 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 28,181 psi | 47% | 2323 fps | 97% |
| IMR 4064 | <<locked>> | 96% | 44,208 psi | 73% | 2589 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 38,667 psi | 64% | 2431 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 41,814 psi | 69% | 2612 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 86% | 38,218 psi | 63% | 2477 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 42,540 psi | 71% | 2569 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 34,432 psi | 57% | 2405 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 84% | 31,038 psi | 52% | 2379 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 50,241 psi | 83% | 2510 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 42,496 psi | 71% | 2510 fps | 95.5% |
| Lovex S062 | <<locked>> | 90% | 35,389 psi | 59% | 2438 fps | 95% |
| Norma 200 | <<locked>> | 80% | 42,003 psi | 70% | 2516 fps | 100% |
| Norma 201 | <<locked>> | 88% | 37,420 psi | 62% | 2467 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 28,834 psi | 48% | 2290 fps | 95.3% |
| Norma 203B | <<locked>> | 96% | 42,728 psi | 71% | 2618 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 96% | 43,149 psi | 72% | 2635 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 90% | 42,395 psi | 70% | 2595 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 86% | 42,032 psi | 70% | 2526 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,207 psi | 40% | 1480 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,462 psi | 59% | 2421 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 45,643 psi | 76% | 2733 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 35,694 psi | 59% | 2533 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 31,981 psi | 53% | 2329 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 90% | 37,710 psi | 63% | 2464 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 98% | 38,957 psi | 65% | 2552 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 42,540 psi | 71% | 2569 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 31,038 psi | 52% | 2379 fps | 95.4% |
| Shooters World Precision | <<locked>> | 90% | 35,389 psi | 59% | 2438 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 37,797 psi | 63% | 2434 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,050 psi | 77% | 2306 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,697 psi | 66% | 2526 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,927 psi | 63% | 2457 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 42,192 psi | 70% | 2579 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,067 psi | 52% | 2264 fps | 96.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 26,600 psi | 44% | 2172 fps | 95.4% |
| Somchem S321 | <<locked>> | 82% | 35,549 psi | 59% | 2448 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 30,385 psi | 50% | 2267 fps | 96.8% |
| Somchem S341 | <<locked>> | 92% | 43,874 psi | 73% | 2595 fps | 95.7% |
| Somchem S355 | <<locked>> | 98% | 40,466 psi | 67% | 2566 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 44,280 psi | 74% | 2477 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,491 psi | 59% | 2362 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 30,922 psi | 51% | 2277 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 80% | 25,817 psi | 43% | 2228 fps | 97.2% |
| Vihtavuori N140 | <<locked>> | 82% | 28,950 psi | 48% | 2274 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 94% | 34,113 psi | 57% | 2411 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 84% | 35,853 psi | 60% | 2425 fps | 95% |
| Vihtavuori N540 | <<locked>> | 84% | 29,791 psi | 49% | 2313 fps | 95.4% |
| Winchester 748 | 39.5 gr | 84% | 34,258 psi | 57% | 2451 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 90% | 38,406 psi | 64% | 2526 fps | 95% |
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 84 powders for .308 Win. Ackley Improved loaded with the .306 | 155gr | Fox Classic Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,848 fps; across all powders the maximum-charge window runs from 1,621 fps to 2,848 fps. Accurate 2495 gives the best case fill at 100 %, and 84 of the 84 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 155.0 gr projectile in 0.306" calls for a 1:11.5 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 .306 | 155gr | Fox Classic Hunter 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.