Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 168gr | Barnes TAC-X bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, ReloadSwiss RS 52 and Alliant Power Pro 2000-MR.
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 2015 | <<locked>> | 94% | 53,635 psi | 89% | 2589 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 51,532 psi | 86% | 2625 fps | 97.6% |
| Accurate 2230 | <<locked>> | 84% | 52,040 psi | 86% | 2635 fps | 98% |
| Accurate 2460 | <<locked>> | 90% | 52,402 psi | 87% | 2612 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 52,736 psi | 88% | 2638 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 53,156 psi | 88% | 2661 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,834 psi | 81% | 2621 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 52,141 psi | 87% | 2507 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 52,591 psi | 87% | 2526 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 96% | 52,663 psi | 87% | 2657 fps | 98.5% |
| ADI AR 2207 | <<locked>> | 84% | 52,924 psi | 88% | 2530 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 50,531 psi | 84% | 2602 fps | 97.5% |
| ADI AR 2219 | <<locked>> | 86% | 51,387 psi | 85% | 2615 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 52,388 psi | 87% | 2625 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 96% | 54,215 psi | 90% | 2657 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 53,751 psi | 89% | 2726 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 52,518 psi | 87% | 2749 fps | 97.6% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,834 psi | 81% | 2621 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 90% | 54,172 psi | 90% | 2605 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 53,156 psi | 88% | 2687 fps | 98.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 43,294 psi | 72% | 2598 fps | 97% |
| Alliant Reloder-7 | <<locked>> | 84% | 53,969 psi | 90% | 2543 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 54,447 psi | 90% | 2552 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 52,518 psi | 87% | 2671 fps | 97.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 48,399 psi | 80% | 2628 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 92% | 51,982 psi | 86% | 2575 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 96% | 53,954 psi | 90% | 2697 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 92% | 52,605 psi | 87% | 2736 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 90% | 53,330 psi | 89% | 2641 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 51,097 psi | 85% | 2618 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 50,792 psi | 84% | 2635 fps | 96.4% |
| Hodgdon H4198 | <<locked>> | 84% | 54,346 psi | 90% | 2556 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 53,084 psi | 88% | 2671 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 51,358 psi | 85% | 2697 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,591 psi | 56% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 51,706 psi | 86% | 2631 fps | 98.7% |
| IMR 3031 | <<locked>> | 96% | 51,561 psi | 86% | 2667 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 53,185 psi | 88% | 2635 fps | 98.1% |
| IMR 4198 | <<locked>> | 88% | 52,083 psi | 87% | 2530 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 54,418 psi | 90% | 2720 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 94% | 52,388 psi | 87% | 2625 fps | 99.3% |
| Lovex D073.4 | <<locked>> | 84% | 52,721 psi | 88% | 2625 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 90% | 52,315 psi | 87% | 2618 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 96% | 50,633 psi | 84% | 2638 fps | 99.9% |
| Lovex S060 | <<locked>> | 96% | 54,085 psi | 90% | 2602 fps | 98.6% |
| Lovex S062ᴾ | <<locked>> | 100% | 51,967 psi | 86% | 2635 fps | 99.3% |
| Norma 200 | <<locked>> | 86% | 53,809 psi | 89% | 2579 fps | 100% |
| Norma 201 | <<locked>> | 96% | 51,329 psi | 85% | 2612 fps | 99.2% |
| Norma 202 | <<locked>> | 96% | 51,488 psi | 86% | 2625 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 52,141 psi | 87% | 2677 fps | 98.5% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 52,794 psi | 88% | 2697 fps | 98.3% |
| Ramshot TAC | <<locked>> | 94% | 53,359 psi | 89% | 2631 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 94% | 51,822 psi | 86% | 2651 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 92% | 54,331 psi | 90% | 2631 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,692 psi | 56% | 1598 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 52,431 psi | 87% | 2621 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 52,823 psi | 88% | 2749 fps | 98.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,383 psi | 77% | 2671 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 94% | 52,170 psi | 87% | 2602 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 51,677 psi | 86% | 2608 fps | 99.2% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 44,759 psi | 74% | 2562 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 84% | 52,721 psi | 88% | 2625 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 96% | 50,633 psi | 84% | 2638 fps | 99.9% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 51,967 psi | 86% | 2635 fps | 99.3% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 52,895 psi | 88% | 2592 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 53,316 psi | 89% | 2293 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 51,822 psi | 86% | 2621 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 47,601 psi | 79% | 2625 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 51,924 psi | 86% | 2579 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 50,720 psi | 84% | 2602 fps | 96.2% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 51,097 psi | 85% | 2631 fps | 98.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 51,343 psi | 85% | 2536 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 50,154 psi | 83% | 2526 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 53,780 psi | 89% | 2667 fps | 99.6% |
| Somchem S335 | <<locked>> | 96% | 52,910 psi | 88% | 2572 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 53,766 psi | 89% | 2654 fps | 98.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 46,427 psi | 77% | 2575 fps | 98% |
| Vihtavuori N120 | <<locked>> | 84% | 52,924 psi | 88% | 2484 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 54,302 psi | 90% | 2556 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 54,085 psi | 90% | 2566 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 53,272 psi | 89% | 2631 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 52,272 psi | 87% | 2608 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,483 psi | 74% | 2513 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 94% | 53,185 psi | 88% | 2628 fps | 99.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 53,693 psi | 89% | 2648 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 41,104 psi | 68% | 2448 fps | 96.2% |
| Winchester 748 | <<locked>> | 94% | 51,430 psi | 85% | 2667 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 98% | 54,056 psi | 90% | 2690 fps | 99.1% |
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 2015 | <<locked>> | 80% | 34,403 psi | 57% | 2287 fps | 99.7% |
| Accurate 2200 | <<locked>> | 80% | 45,107 psi | 75% | 2516 fps | 96.2% |
| Accurate 2230 | <<locked>> | 80% | 44,817 psi | 74% | 2520 fps | 96.6% |
| Accurate 2460 | <<locked>> | 80% | 37,173 psi | 62% | 2369 fps | 98.6% |
| Accurate 2495 | <<locked>> | 80% | 26,513 psi | 44% | 2172 fps | 98.5% |
| Accurate 2520 | <<locked>> | 80% | 32,474 psi | 54% | 2306 fps | 97% |
| Accurate 4064 | <<locked>> | 80% | 25,150 psi | 42% | 2146 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 43,584 psi | 72% | 2382 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 43,990 psi | 73% | 2395 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 38,551 psi | 64% | 2418 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 47,036 psi | 78% | 2451 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 41,989 psi | 70% | 2461 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 42,047 psi | 70% | 2470 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 33,692 psi | 56% | 2290 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 31,734 psi | 53% | 2306 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 38,392 psi | 64% | 2461 fps | 96.2% |
| Alliant Power Pro 2000-MR | 43.8 gr | 92% | 42,699 psi | 71% | 2575 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 35,317 psi | 59% | 2379 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,740 psi | 66% | 2392 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 41,365 psi | 69% | 2493 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 37,840 psi | 63% | 2484 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 47,790 psi | 79% | 2461 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,959 psi | 70% | 2375 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 42,888 psi | 71% | 2513 fps | 95.3% |
| Bofors RP3 | <<locked>> | 90% | 34,418 psi | 57% | 2375 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,911 psi | 60% | 2297 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 30,951 psi | 51% | 2287 fps | 95.1% |
| Hodgdon CFE223 | 41 gr | 84% | 39,842 psi | 66% | 2510 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 38,145 psi | 63% | 2398 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 80% | 38,624 psi | 64% | 2415 fps | 99% |
| Hodgdon H380 | <<locked>> | 98% | 47,543 psi | 79% | 2585 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 48,109 psi | 80% | 2467 fps | 100% |
| Hodgdon H4895 | <<locked>> | 84% | 36,318 psi | 60% | 2379 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 34,563 psi | 57% | 2385 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,831 psi | 41% | 1394 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 37,449 psi | 62% | 2385 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 30,371 psi | 50% | 2290 fps | 98.7% |
| IMR 4064 | <<locked>> | 92% | 41,307 psi | 69% | 2444 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 41,104 psi | 68% | 2369 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 37,101 psi | 62% | 2425 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 33,692 psi | 56% | 2290 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 45,730 psi | 76% | 2520 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 36,854 psi | 61% | 2362 fps | 97.4% |
| Lovex D073.6 | <<locked>> | 80% | 29,225 psi | 49% | 2241 fps | 95.8% |
| Lovex S060 | <<locked>> | 84% | 37,652 psi | 63% | 2326 fps | 95.1% |
| Lovex S062 | <<locked>> | 86% | 33,431 psi | 56% | 2303 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 44,570 psi | 74% | 2451 fps | 100% |
| Norma 201 | <<locked>> | 82% | 33,025 psi | 55% | 2280 fps | 95.2% |
| Norma 202 | <<locked>> | 80% | 30,835 psi | 51% | 2251 fps | 97.1% |
| Norma 203B | <<locked>> | 90% | 37,942 psi | 63% | 2431 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 92% | 40,393 psi | 67% | 2490 fps | 95.6% |
| Ramshot TAC | <<locked>> | 92% | 50,169 psi | 83% | 2585 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 39,581 psi | 66% | 2448 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 39,349 psi | 65% | 2385 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,758 psi | 41% | 1427 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,942 psi | 63% | 2379 fps | 98% |
| ReloadSwiss RS 52 | 41.6 gr | 90% | 40,190 psi | 67% | 2533 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 31,285 psi | 52% | 2339 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 34,229 psi | 57% | 2290 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 84% | 33,257 psi | 55% | 2277 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 92% | 34,301 psi | 57% | 2365 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 45,730 psi | 76% | 2520 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,225 psi | 49% | 2241 fps | 95.8% |
| Shooters World Precision | <<locked>> | 86% | 33,431 psi | 56% | 2303 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,132 psi | 67% | 2388 fps | 96.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,225 psi | 80% | 2231 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,250 psi | 70% | 2474 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 39,117 psi | 65% | 2470 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,248 psi | 67% | 2398 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 47,152 psi | 78% | 2546 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 39,407 psi | 65% | 2434 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,895 psi | 55% | 2218 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,585 psi | 44% | 2090 fps | 96.5% |
| Somchem S321 | <<locked>> | 80% | 35,578 psi | 59% | 2356 fps | 96.4% |
| Somchem S335 | <<locked>> | 80% | 32,256 psi | 54% | 2224 fps | 98.2% |
| Somchem S341 | <<locked>> | 86% | 38,174 psi | 63% | 2398 fps | 95.1% |
| Somchem S355 | <<locked>> | 92% | 35,940 psi | 60% | 2382 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 47,065 psi | 78% | 2408 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,550 psi | 62% | 2306 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,851 psi | 55% | 2228 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 80% | 27,717 psi | 46% | 2188 fps | 98.7% |
| Vihtavuori N140 | <<locked>> | 80% | 29,124 psi | 48% | 2192 fps | 96.9% |
| Vihtavuori N150 | <<locked>> | 90% | 32,053 psi | 53% | 2277 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 33,417 psi | 56% | 2283 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 27,934 psi | 46% | 2178 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 38,609 psi | 64% | 2398 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 32,111 psi | 53% | 2313 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 36,085 psi | 60% | 2385 fps | 95.3% |
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.
This overview compares 88 powders for .308 Win. Ackley Improved loaded with the .308 | 168gr | Barnes TAC-X. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,749 fps; across all powders the maximum-charge window runs from 1,562 fps to 2,749 fps. Accurate 2495 gives the best case fill at 100 %, and 88 of the 88 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 168.0 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. Hodgdon CFE223, ReloadSwiss RS 52, Alliant Power Pro 2000-MR rank at the top here: for .308 Win. Ackley Improved with the .308 | 168gr | Barnes TAC-X 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.