Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 145gr | SUS-TAC HPT bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Winchester 748 and Accurate 2520.
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.
A valid access license is required to use the Personalized Load Calculator.
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% | 51,329 psi | 85% | 2677 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 52,823 psi | 88% | 2779 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 51,039 psi | 85% | 2802 fps | 95.8% |
| Accurate 2230 | <<locked>> | 86% | 51,445 psi | 85% | 2812 fps | 96.3% |
| Accurate 2460 | <<locked>> | 92% | 51,663 psi | 86% | 2792 fps | 99.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 47,761 psi | 79% | 2769 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 52,228 psi | 87% | 2841 fps | 99.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 44,324 psi | 74% | 2743 fps | 99.2% |
| Accurate LT-30 | <<locked>> | 88% | 52,141 psi | 87% | 2697 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 52,591 psi | 87% | 2713 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 98% | 51,851 psi | 86% | 2831 fps | 96.9% |
| ADI AR 2207 | <<locked>> | 86% | 52,547 psi | 87% | 2733 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 54,244 psi | 90% | 2854 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 51,706 psi | 86% | 2802 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 98% | 52,794 psi | 88% | 2854 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 52,475 psi | 87% | 2904 fps | 97.8% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,527 psi | 74% | 2733 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 92% | 53,258 psi | 88% | 2799 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 54,041 psi | 90% | 2746 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 53,983 psi | 90% | 2736 fps | 100% |
| Bofors RP3ᴾ | <<locked>> | 100% | 43,976 psi | 73% | 2736 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 94% | 51,430 psi | 85% | 2749 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 98% | 52,765 psi | 88% | 2874 fps | 98.8% |
| Hodgdon CFE223 | <<locked>> | 94% | 51,619 psi | 86% | 2904 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 92% | 52,315 psi | 87% | 2825 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 53,896 psi | 90% | 2854 fps | 99.8% |
| Hodgdon H4198 | <<locked>> | 86% | 54,085 psi | 90% | 2746 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 98% | 52,156 psi | 87% | 2848 fps | 97.6% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,401 psi | 84% | 2864 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,185 psi | 55% | 1683 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 54,201 psi | 90% | 2854 fps | 97.8% |
| IMR 3031ᴾ | <<locked>> | 100% | 53,316 psi | 89% | 2900 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 49,153 psi | 82% | 2753 fps | 95.8% |
| IMR 4198 | <<locked>> | 90% | 51,271 psi | 85% | 2723 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 54,186 psi | 90% | 2694 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 49,864 psi | 83% | 2838 fps | 96.7% |
| IMR 8208 XBR | <<locked>> | 96% | 51,706 psi | 86% | 2802 fps | 98.1% |
| Lovex D073.4 | <<locked>> | 86% | 52,185 psi | 87% | 2808 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 92% | 51,517 psi | 86% | 2792 fps | 98.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 52,997 psi | 88% | 2864 fps | 99.5% |
| Lovex S053 | <<locked>> | 82% | 52,939 psi | 88% | 2638 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 53,374 psi | 89% | 2776 fps | 97.2% |
| Lovex S062ᴾ | <<locked>> | 100% | 47,906 psi | 80% | 2756 fps | 97.6% |
| Norma 200 | <<locked>> | 88% | 53,592 psi | 89% | 2779 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 53,722 psi | 89% | 2835 fps | 98.5% |
| Norma 202ᴾ | <<locked>> | 100% | 53,954 psi | 90% | 2854 fps | 99.8% |
| Norma 203Bᴾ | <<locked>> | 100% | 47,819 psi | 79% | 2792 fps | 96.2% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 48,588 psi | 81% | 2808 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 96% | 50,981 psi | 85% | 2822 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 94% | 53,983 psi | 90% | 2808 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,228 psi | 55% | 1722 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 54,172 psi | 90% | 2726 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 51,895 psi | 86% | 2805 fps | 99.1% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 51,285 psi | 85% | 2910 fps | 96.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 43,018 psi | 71% | 2769 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 96% | 51,750 psi | 86% | 2789 fps | 99.5% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 50,836 psi | 84% | 2779 fps | 98% |
| Shooters World AR Plus | <<locked>> | 86% | 52,185 psi | 87% | 2808 fps | 99.2% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 52,997 psi | 88% | 2864 fps | 99.5% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 47,906 psi | 80% | 2756 fps | 97.6% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 52,750 psi | 88% | 2772 fps | 97.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 53,403 psi | 89% | 2487 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 51,213 psi | 85% | 2808 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 54,346 psi | 90% | 2815 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 53,635 psi | 89% | 2854 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 53,911 psi | 90% | 2759 fps | 99.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 46,456 psi | 77% | 2657 fps | 99.6% |
| Somchem S321 | <<locked>> | 94% | 53,069 psi | 88% | 2844 fps | 98.6% |
| Somchem S335 | <<locked>> | 98% | 52,417 psi | 87% | 2756 fps | 99.9% |
| Somchem S341 | <<locked>> | 98% | 52,794 psi | 88% | 2822 fps | 96.9% |
| Vihtavuori N120 | <<locked>> | 86% | 52,518 psi | 87% | 2680 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 53,853 psi | 89% | 2749 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 53,229 psi | 88% | 2753 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 48,776 psi | 81% | 2772 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 50,908 psi | 85% | 2779 fps | 99.7% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,741 psi | 68% | 2621 fps | 96.4% |
| Vihtavuori N530 | <<locked>> | 96% | 52,460 psi | 87% | 2805 fps | 98.2% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 49,255 psi | 82% | 2772 fps | 99.4% |
| Winchester 748 | <<locked>> | 98% | 53,824 psi | 89% | 2897 fps | 99.1% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 52,910 psi | 88% | 2861 fps | 97.7% |
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% | 47,892 psi | 80% | 2628 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,082 psi | 53% | 2405 fps | 98.4% |
| Accurate 2200 | <<locked>> | 84% | 47,921 psi | 80% | 2746 fps | 95% |
| Accurate 2230 | <<locked>> | 84% | 47,906 psi | 80% | 2753 fps | 95.5% |
| Accurate 2460 | <<locked>> | 80% | 34,316 psi | 57% | 2474 fps | 96.3% |
| Accurate 2495 | <<locked>> | 80% | 24,598 psi | 41% | 2274 fps | 96.2% |
| Accurate 2520 | 39.5 gr | 82% | 32,213 psi | 54% | 2467 fps | 95.1% |
| Accurate 4064 | <<locked>> | 88% | 30,313 psi | 50% | 2444 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 40,944 psi | 68% | 2513 fps | 99.1% |
| Accurate LT-32 | <<locked>> | 80% | 41,321 psi | 69% | 2520 fps | 97.7% |
| ADI AR 2206H | <<locked>> | 94% | 45,861 psi | 76% | 2730 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 43,569 psi | 72% | 2598 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 38,711 psi | 64% | 2592 fps | 98.6% |
| ADI Benchmark 8208 | <<locked>> | 88% | 40,480 psi | 67% | 2602 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 29,370 psi | 49% | 2421 fps | 99.6% |
| Alliant Power Pro 1200-R | 39.3 gr | 86% | 43,265 psi | 72% | 2740 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 39,291 psi | 65% | 2631 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,782 psi | 61% | 2520 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,773 psi | 74% | 2608 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,276 psi | 65% | 2500 fps | 99% |
| Bofors RP3 | <<locked>> | 98% | 41,147 psi | 68% | 2684 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 38,290 psi | 64% | 2510 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 88% | 37,681 psi | 63% | 2605 fps | 95.6% |
| Hodgdon CFE223 | <<locked>> | 92% | 48,211 psi | 80% | 2844 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 35,520 psi | 59% | 2520 fps | 97.9% |
| Hodgdon H335 | <<locked>> | 80% | 35,766 psi | 59% | 2530 fps | 97% |
| Hodgdon H4198 | <<locked>> | 80% | 45,136 psi | 75% | 2602 fps | 99.3% |
| Hodgdon H4895 | <<locked>> | 92% | 43,352 psi | 72% | 2694 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 41,394 psi | 69% | 2697 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,468 psi | 41% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 42,308 psi | 70% | 2651 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 28,195 psi | 47% | 2392 fps | 96.2% |
| IMR 4064 | <<locked>> | 98% | 46,195 psi | 77% | 2703 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 38,189 psi | 63% | 2507 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 50,763 psi | 84% | 2644 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 43,976 psi | 73% | 2733 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 88% | 40,480 psi | 67% | 2602 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 42,047 psi | 70% | 2638 fps | 97.7% |
| Lovex D073.5 | <<locked>> | 82% | 36,753 psi | 61% | 2526 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 86% | 32,822 psi | 55% | 2493 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 49,676 psi | 83% | 2592 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 44,570 psi | 74% | 2625 fps | 95.2% |
| Lovex S062 | <<locked>> | 94% | 39,726 psi | 66% | 2605 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 41,655 psi | 69% | 2592 fps | 100% |
| Norma 201 | <<locked>> | 90% | 39,581 psi | 66% | 2585 fps | 95.5% |
| Norma 202 | <<locked>> | 82% | 30,501 psi | 51% | 2405 fps | 95.1% |
| Norma 203B | <<locked>> | 98% | 44,875 psi | 75% | 2740 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 98% | 45,397 psi | 75% | 2753 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 92% | 44,730 psi | 74% | 2717 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 90% | 47,253 psi | 79% | 2700 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,366 psi | 40% | 1535 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 50,894 psi | 85% | 2684 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,215 psi | 59% | 2490 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 48,153 psi | 80% | 2858 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 37,782 psi | 63% | 2648 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 32,271 psi | 54% | 2405 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 92% | 39,856 psi | 66% | 2582 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 42,047 psi | 70% | 2638 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 32,822 psi | 55% | 2493 fps | 95.3% |
| Shooters World Precision | <<locked>> | 94% | 39,726 psi | 66% | 2605 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 40,147 psi | 67% | 2556 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,774 psi | 76% | 2388 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,218 psi | 65% | 2592 fps | 97.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,333 psi | 62% | 2526 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 44,295 psi | 74% | 2697 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,864 psi | 51% | 2326 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 28,369 psi | 47% | 2283 fps | 95.4% |
| Somchem S321 | <<locked>> | 84% | 37,927 psi | 63% | 2572 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 30,240 psi | 50% | 2333 fps | 96% |
| Somchem S341 | <<locked>> | 94% | 46,253 psi | 77% | 2717 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 43,671 psi | 73% | 2556 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,172 psi | 58% | 2434 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 80% | 30,632 psi | 51% | 2343 fps | 97.9% |
| Vihtavuori N135 | <<locked>> | 80% | 25,744 psi | 43% | 2290 fps | 96.4% |
| Vihtavuori N140 | <<locked>> | 84% | 30,734 psi | 51% | 2392 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 98% | 38,218 psi | 63% | 2572 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 88% | 40,321 psi | 67% | 2595 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 86% | 31,517 psi | 52% | 2425 fps | 95.3% |
| Winchester 748 | 41.1 gr | 86% | 36,289 psi | 60% | 2572 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 94% | 43,221 psi | 72% | 2697 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 94 powders for .308 Win. Ackley Improved loaded with the .308 | 145gr | SUS-TAC HPT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,910 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,910 fps. Accurate 2495 gives the best case fill at 100 %, and 94 of the 94 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 145.0 gr projectile in 0.308" calls for a 1:12.0 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. Alliant Power Pro 1200-R, Winchester 748, Accurate 2520 rank at the top here: for .308 Win. Ackley Improved with the .308 | 145gr | SUS-TAC HPT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2208, Alliant Reloder-17, Hodgdon H380 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.