Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | Sierra MatchKing bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, Hodgdon CFE223 and Alliant Power Pro 1200-R.
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% | 53,737 psi | 89% | 2684 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 53,055 psi | 88% | 2749 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 50,850 psi | 84% | 2776 fps | 96.5% |
| Accurate 2230 | <<locked>> | 84% | 51,285 psi | 85% | 2785 fps | 97% |
| Accurate 2460 | <<locked>> | 90% | 51,837 psi | 86% | 2769 fps | 99.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 51,938 psi | 86% | 2795 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 52,373 psi | 87% | 2815 fps | 99.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,153 psi | 80% | 2776 fps | 99.8% |
| Accurate LT-30 | <<locked>> | 86% | 51,474 psi | 86% | 2664 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 51,880 psi | 86% | 2677 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 96% | 52,185 psi | 87% | 2815 fps | 97.7% |
| ADI AR 2207 | <<locked>> | 84% | 52,286 psi | 87% | 2694 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 49,908 psi | 83% | 2749 fps | 96.4% |
| ADI AR 2219 | <<locked>> | 88% | 53,983 psi | 90% | 2822 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 51,706 psi | 86% | 2779 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 96% | 53,243 psi | 88% | 2825 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 52,489 psi | 87% | 2877 fps | 98.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 51,488 psi | 86% | 2890 fps | 96.3% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 47,993 psi | 80% | 2769 fps | 97.8% |
| Alliant Reloder-10x | <<locked>> | 90% | 53,258 psi | 88% | 2766 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 52,533 psi | 87% | 2841 fps | 97.3% |
| Alliant Reloder-7 | <<locked>> | 84% | 53,548 psi | 89% | 2710 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 53,679 psi | 89% | 2707 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 51,561 psi | 86% | 2815 fps | 96.4% |
| Bofors RP3ᴾ | <<locked>> | 100% | 47,819 psi | 79% | 2776 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 92% | 51,358 psi | 85% | 2726 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 96% | 53,098 psi | 88% | 2854 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 92% | 51,561 psi | 86% | 2881 fps | 97% |
| Hodgdon H322 | <<locked>> | 90% | 52,533 psi | 87% | 2799 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 53,505 psi | 89% | 2822 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 84% | 53,403 psi | 89% | 2710 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 52,504 psi | 87% | 2828 fps | 98.3% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 53,983 psi | 90% | 2900 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,460 psi | 56% | 1673 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 54,317 psi | 90% | 2835 fps | 98.4% |
| IMR 3031 | <<locked>> | 98% | 54,085 psi | 90% | 2877 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 52,547 psi | 87% | 2789 fps | 97.2% |
| IMR 4198 | <<locked>> | 90% | 54,157 psi | 90% | 2733 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 53,795 psi | 89% | 2877 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 94% | 51,706 psi | 86% | 2779 fps | 98.6% |
| Lovex D073.4 | <<locked>> | 84% | 51,750 psi | 86% | 2776 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 90% | 51,561 psi | 86% | 2769 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 98% | 53,505 psi | 89% | 2844 fps | 99.8% |
| Lovex S060 | <<locked>> | 96% | 53,113 psi | 88% | 2749 fps | 97.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 51,401 psi | 85% | 2789 fps | 98.7% |
| Norma 200 | <<locked>> | 86% | 53,592 psi | 89% | 2746 fps | 100% |
| Norma 201 | <<locked>> | 98% | 53,983 psi | 90% | 2815 fps | 99% |
| Norma 202 | <<locked>> | 98% | 54,288 psi | 90% | 2831 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 51,605 psi | 86% | 2831 fps | 97.7% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 51,924 psi | 86% | 2844 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 94% | 51,184 psi | 85% | 2802 fps | 97.4% |
| Ramshot X-Terminator | <<locked>> | 92% | 53,679 psi | 89% | 2782 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,547 psi | 56% | 1713 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 51,967 psi | 86% | 2779 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 51,605 psi | 86% | 2897 fps | 97.1% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 45,934 psi | 76% | 2815 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 94% | 51,996 psi | 86% | 2766 fps | 99.8% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 54,331 psi | 90% | 2808 fps | 99% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 44,150 psi | 73% | 2703 fps | 96.8% |
| Shooters World AR Plus | <<locked>> | 84% | 51,750 psi | 86% | 2776 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 98% | 53,505 psi | 89% | 2844 fps | 99.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 51,401 psi | 85% | 2789 fps | 98.7% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 52,199 psi | 87% | 2743 fps | 98.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 52,997 psi | 88% | 2451 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 54,433 psi | 90% | 2828 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 46,891 psi | 78% | 2769 fps | 96.4% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 54,288 psi | 90% | 2782 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 53,795 psi | 89% | 2805 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 53,722 psi | 89% | 2831 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 53,780 psi | 89% | 2730 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 49,429 psi | 82% | 2677 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 52,939 psi | 88% | 2818 fps | 99% |
| Somchem S335 | <<locked>> | 96% | 52,402 psi | 87% | 2730 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 52,808 psi | 88% | 2802 fps | 97.6% |
| Somchem S355ᴾ | <<locked>> | 100% | 45,513 psi | 76% | 2713 fps | 96.9% |
| Vihtavuori N120 | <<locked>> | 84% | 52,257 psi | 87% | 2644 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 53,621 psi | 89% | 2717 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 53,229 psi | 88% | 2723 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 52,402 psi | 87% | 2792 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 51,242 psi | 85% | 2759 fps | 99.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 43,816 psi | 73% | 2654 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 94% | 52,344 psi | 87% | 2779 fps | 98.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 52,939 psi | 88% | 2802 fps | 99.9% |
| Winchester 748 | <<locked>> | 96% | 54,085 psi | 90% | 2874 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 98% | 53,055 psi | 88% | 2841 fps | 98.3% |
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% | 50,618 psi | 84% | 2641 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 34,418 psi | 57% | 2431 fps | 99.3% |
| Accurate 2200 | <<locked>> | 80% | 44,672 psi | 74% | 2664 fps | 95% |
| Accurate 2230 | <<locked>> | 80% | 44,338 psi | 74% | 2667 fps | 95.4% |
| Accurate 2460 | <<locked>> | 80% | 36,941 psi | 61% | 2507 fps | 97.7% |
| Accurate 2495 | <<locked>> | 80% | 26,818 psi | 45% | 2310 fps | 97.8% |
| Accurate 2520 | <<locked>> | 80% | 32,401 psi | 54% | 2444 fps | 95.9% |
| Accurate 4064 | <<locked>> | 82% | 27,079 psi | 45% | 2329 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 42,975 psi | 71% | 2526 fps | 99.6% |
| Accurate LT-32 | <<locked>> | 80% | 43,337 psi | 72% | 2536 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 88% | 40,596 psi | 67% | 2605 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 46,180 psi | 77% | 2605 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 44,005 psi | 73% | 2648 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 41,176 psi | 68% | 2612 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 37,913 psi | 63% | 2526 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 31,546 psi | 52% | 2451 fps | 100% |
| Alliant Power Pro 1200-R | 38.8 gr | 82% | 40,611 psi | 67% | 2661 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 48,182 psi | 80% | 2831 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 37,333 psi | 62% | 2569 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,349 psi | 65% | 2539 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 43,265 psi | 72% | 2680 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 47,485 psi | 79% | 2621 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,553 psi | 69% | 2520 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 48,341 psi | 80% | 2762 fps | 95.6% |
| Bofors RP3 | <<locked>> | 92% | 36,593 psi | 61% | 2566 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,708 psi | 59% | 2431 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 84% | 35,360 psi | 59% | 2530 fps | 95.6% |
| Hodgdon CFE223 | 45.3 gr | 88% | 44,875 psi | 75% | 2762 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 37,884 psi | 63% | 2546 fps | 98.9% |
| Hodgdon H335 | <<locked>> | 80% | 38,247 psi | 64% | 2559 fps | 98.2% |
| Hodgdon H4198 | <<locked>> | 80% | 47,326 psi | 79% | 2615 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 88% | 40,814 psi | 68% | 2618 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 38,841 psi | 65% | 2625 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,700 psi | 41% | 1493 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 39,697 psi | 66% | 2575 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 30,037 psi | 50% | 2421 fps | 97.7% |
| IMR 4064 | <<locked>> | 94% | 43,482 psi | 72% | 2635 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 40,509 psi | 67% | 2520 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 41,684 psi | 69% | 2664 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 84% | 37,913 psi | 63% | 2526 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 45,034 psi | 75% | 2667 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 36,753 psi | 61% | 2503 fps | 96.4% |
| Lovex D073.6 | <<locked>> | 82% | 31,009 psi | 52% | 2421 fps | 95.3% |
| Lovex S060 | <<locked>> | 88% | 42,105 psi | 70% | 2559 fps | 95.4% |
| Lovex S062 | <<locked>> | 88% | 35,520 psi | 59% | 2493 fps | 95% |
| Norma 200 | <<locked>> | 80% | 44,411 psi | 74% | 2608 fps | 100% |
| Norma 201 | <<locked>> | 86% | 37,391 psi | 62% | 2516 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 30,690 psi | 51% | 2385 fps | 96% |
| Norma 203B | <<locked>> | 94% | 42,438 psi | 71% | 2667 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 94% | 42,612 psi | 71% | 2680 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 88% | 41,698 psi | 69% | 2638 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 44,309 psi | 74% | 2625 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,889 psi | 41% | 1532 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,420 psi | 62% | 2516 fps | 97% |
| ReloadSwiss RS 52 | 45.9 gr | 94% | 45,295 psi | 75% | 2785 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 35,317 psi | 59% | 2575 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 34,301 psi | 57% | 2431 fps | 96.9% |
| Rottweil R 902 | <<locked>> | 88% | 37,637 psi | 63% | 2513 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 96% | 38,928 psi | 65% | 2605 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 45,034 psi | 75% | 2667 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 31,009 psi | 52% | 2421 fps | 95.3% |
| Shooters World Precision | <<locked>> | 88% | 35,520 psi | 59% | 2493 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 39,827 psi | 66% | 2526 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 47,587 psi | 79% | 2382 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 41,814 psi | 69% | 2618 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 43,874 psi | 73% | 2713 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,972 psi | 66% | 2549 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 50,227 psi | 83% | 2749 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 41,582 psi | 69% | 2621 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,938 psi | 55% | 2356 fps | 96.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,701 psi | 44% | 2218 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 35,375 psi | 59% | 2493 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 32,213 psi | 54% | 2359 fps | 97.4% |
| Somchem S341 | <<locked>> | 90% | 43,207 psi | 72% | 2641 fps | 95.5% |
| Somchem S355 | <<locked>> | 96% | 40,350 psi | 67% | 2615 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 46,195 psi | 77% | 2559 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,521 psi | 62% | 2454 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 80% | 32,808 psi | 55% | 2369 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 80% | 27,789 psi | 46% | 2323 fps | 97.9% |
| Vihtavuori N140 | <<locked>> | 80% | 28,964 psi | 48% | 2320 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 92% | 33,953 psi | 56% | 2457 fps | 95% |
| Vihtavuori N530 | <<locked>> | 84% | 37,681 psi | 63% | 2516 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 82% | 29,631 psi | 49% | 2352 fps | 95.3% |
| Winchester 748 | <<locked>> | 82% | 34,026 psi | 57% | 2497 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 90% | 40,567 psi | 67% | 2625 fps | 95.6% |
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 85 powders for .308 Win. Ackley Improved loaded with the .308 | 150gr | Sierra MatchKing. Hodgdon LEVERevolution delivers the highest muzzle velocity at 2,900 fps; across all powders the maximum-charge window runs from 1,673 fps to 2,900 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 56–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:14.5 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. ReloadSwiss RS 52, Hodgdon CFE223, Alliant Power Pro 1200-R rank at the top here: for .308 Win. Ackley Improved with the .308 | 150gr | Sierra MatchKing 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.