Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 175gr | Atomic 29 HP bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon CFE223.
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% | 54,230 psi | 90% | 2533 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 52,257 psi | 87% | 2572 fps | 98% |
| Accurate 2230 | <<locked>> | 84% | 52,692 psi | 88% | 2582 fps | 98.3% |
| Accurate 2460 | <<locked>> | 90% | 52,779 psi | 88% | 2556 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 53,301 psi | 89% | 2579 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 54,186 psi | 90% | 2612 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 49,443 psi | 82% | 2569 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 52,678 psi | 88% | 2454 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 53,171 psi | 88% | 2470 fps | 100% |
| ADI AR 2206H | <<locked>> | 96% | 53,476 psi | 89% | 2608 fps | 98.8% |
| ADI AR 2207 | <<locked>> | 84% | 53,824 psi | 89% | 2477 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 51,314 psi | 85% | 2552 fps | 97.9% |
| ADI AR 2219 | <<locked>> | 86% | 51,953 psi | 86% | 2559 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 53,113 psi | 88% | 2572 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 94% | 51,692 psi | 86% | 2562 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 54,375 psi | 90% | 2671 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 53,200 psi | 88% | 2700 fps | 98% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 49,298 psi | 82% | 2569 fps | 99% |
| Alliant Reloder-10x | <<locked>> | 88% | 51,401 psi | 85% | 2507 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 53,766 psi | 89% | 2635 fps | 98.5% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 43,932 psi | 73% | 2552 fps | 97.5% |
| Alliant Reloder-7 | <<locked>> | 82% | 51,459 psi | 85% | 2448 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 51,532 psi | 86% | 2454 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 53,171 psi | 88% | 2618 fps | 97.9% |
| Bofors RP3ᴾ | <<locked>> | 100% | 49,081 psi | 82% | 2575 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 92% | 52,475 psi | 87% | 2520 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 94% | 51,140 psi | 85% | 2598 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 92% | 53,214 psi | 88% | 2680 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 90% | 53,925 psi | 90% | 2582 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 51,416 psi | 85% | 2562 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 51,474 psi | 86% | 2585 fps | 96.9% |
| Hodgdon H4198 | <<locked>> | 82% | 51,401 psi | 85% | 2451 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 53,838 psi | 89% | 2618 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 52,040 psi | 86% | 2644 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,475 psi | 56% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 52,489 psi | 87% | 2579 fps | 99% |
| IMR 3031 | <<locked>> | 96% | 52,286 psi | 87% | 2612 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 54,056 psi | 90% | 2585 fps | 98.5% |
| IMR 4198 | <<locked>> | 88% | 52,591 psi | 87% | 2474 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 51,909 psi | 86% | 2621 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 94% | 53,113 psi | 88% | 2572 fps | 99.5% |
| Lovex D073.4 | <<locked>> | 84% | 53,301 psi | 89% | 2569 fps | 100% |
| Lovex D073.5 | <<locked>> | 90% | 52,794 psi | 88% | 2562 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 96% | 51,619 psi | 86% | 2589 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 51,358 psi | 85% | 2503 fps | 98.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 52,808 psi | 88% | 2582 fps | 99.5% |
| Norma 200 | <<locked>> | 84% | 51,053 psi | 85% | 2480 fps | 100% |
| Norma 201 | <<locked>> | 96% | 52,040 psi | 86% | 2559 fps | 99.4% |
| Norma 202 | <<locked>> | 96% | 52,228 psi | 87% | 2572 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 52,750 psi | 88% | 2621 fps | 98.8% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 53,606 psi | 89% | 2648 fps | 98.7% |
| Ramshot TAC | <<locked>> | 94% | 53,940 psi | 90% | 2579 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 94% | 52,388 psi | 87% | 2598 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 90% | 51,474 psi | 86% | 2530 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,605 psi | 56% | 1555 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 53,040 psi | 88% | 2566 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 53,519 psi | 89% | 2697 fps | 98.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 47,079 psi | 78% | 2621 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 94% | 53,098 psi | 88% | 2552 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 52,054 psi | 86% | 2552 fps | 99.4% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 45,672 psi | 76% | 2516 fps | 98.3% |
| Shooters World AR Plus | <<locked>> | 84% | 53,301 psi | 89% | 2569 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 96% | 51,619 psi | 86% | 2589 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 52,808 psi | 88% | 2582 fps | 99.5% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 53,534 psi | 89% | 2539 fps | 99.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 54,085 psi | 90% | 2241 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 52,460 psi | 87% | 2569 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 48,240 psi | 80% | 2579 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 52,605 psi | 87% | 2523 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 51,343 psi | 85% | 2552 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 52,040 psi | 86% | 2582 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 51,851 psi | 86% | 2480 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 50,865 psi | 85% | 2474 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 54,317 psi | 90% | 2612 fps | 99.7% |
| Somchem S335 | <<locked>> | 96% | 53,606 psi | 89% | 2520 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 51,010 psi | 85% | 2556 fps | 98.3% |
| Somchem S355ᴾ | <<locked>> | 100% | 46,891 psi | 78% | 2523 fps | 98.3% |
| Vihtavuori N120 | <<locked>> | 84% | 53,795 psi | 89% | 2428 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 51,648 psi | 86% | 2457 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 51,503 psi | 86% | 2474 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 54,099 psi | 90% | 2575 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 52,750 psi | 88% | 2549 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 45,339 psi | 75% | 2467 fps | 99% |
| Vihtavuori N530 | <<locked>> | 94% | 53,969 psi | 90% | 2575 fps | 99.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 54,375 psi | 90% | 2592 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 41,742 psi | 69% | 2405 fps | 96.8% |
| Winchester 748 | <<locked>> | 94% | 52,011 psi | 86% | 2612 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 96% | 51,256 psi | 85% | 2589 fps | 99% |
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% | 35,012 psi | 58% | 2241 fps | 99.9% |
| Accurate 2200 | <<locked>> | 80% | 45,629 psi | 76% | 2467 fps | 96.7% |
| Accurate 2230 | <<locked>> | 80% | 45,556 psi | 76% | 2474 fps | 97.1% |
| Accurate 2460 | <<locked>> | 80% | 37,434 psi | 62% | 2316 fps | 98.8% |
| Accurate 2495 | <<locked>> | 80% | 26,905 psi | 45% | 2133 fps | 98.9% |
| Accurate 2520 | <<locked>> | 80% | 33,011 psi | 55% | 2264 fps | 97.5% |
| Accurate 4064 | <<locked>> | 80% | 25,512 psi | 42% | 2106 fps | 95.9% |
| Accurate LT-30 | <<locked>> | 80% | 43,903 psi | 73% | 2329 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 44,295 psi | 74% | 2343 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 36,405 psi | 60% | 2316 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 47,340 psi | 79% | 2395 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 40,089 psi | 67% | 2369 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 42,308 psi | 70% | 2415 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 34,113 psi | 57% | 2244 fps | 95.8% |
| Alliant AR-Comp | <<locked>> | 80% | 32,358 psi | 54% | 2264 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 38,914 psi | 65% | 2415 fps | 96.8% |
| Alliant Power Pro 2000-MR | 42.9 gr | 92% | 43,381 psi | 72% | 2533 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 33,678 psi | 56% | 2290 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,059 psi | 67% | 2339 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 39,233 psi | 65% | 2395 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 96% | 38,580 psi | 64% | 2448 fps | 95.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 48,515 psi | 81% | 2411 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 42,525 psi | 71% | 2326 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 40,567 psi | 67% | 2415 fps | 95% |
| Bofors RP3 | <<locked>> | 88% | 32,547 psi | 54% | 2280 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,506 psi | 61% | 2254 fps | 97.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 31,517 psi | 52% | 2247 fps | 95.7% |
| Hodgdon CFE223 | 40.1 gr | 84% | 40,364 psi | 67% | 2464 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 38,899 psi | 65% | 2356 fps | 99.7% |
| Hodgdon H335 | <<locked>> | 80% | 39,204 psi | 65% | 2369 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 96% | 44,947 psi | 75% | 2487 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 48,428 psi | 80% | 2411 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 34,476 psi | 57% | 2283 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 34,983 psi | 58% | 2339 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,816 psi | 41% | 1355 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 35,578 psi | 59% | 2290 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 30,719 psi | 51% | 2244 fps | 99% |
| IMR 4064 | <<locked>> | 90% | 39,349 psi | 65% | 2352 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 41,539 psi | 69% | 2320 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 37,521 psi | 62% | 2375 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 34,113 psi | 57% | 2244 fps | 95.8% |
| Lovex D073.4 | <<locked>> | 80% | 46,137 psi | 77% | 2467 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 37,188 psi | 62% | 2313 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 80% | 29,689 psi | 49% | 2201 fps | 96.3% |
| Lovex S060 | <<locked>> | 84% | 37,797 psi | 63% | 2277 fps | 95.5% |
| Lovex S062 | <<locked>> | 84% | 31,720 psi | 53% | 2211 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 45,049 psi | 75% | 2395 fps | 100% |
| Norma 201 | <<locked>> | 82% | 33,402 psi | 55% | 2234 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 31,198 psi | 52% | 2205 fps | 97.6% |
| Norma 203B | <<locked>> | 88% | 35,955 psi | 60% | 2336 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 90% | 38,232 psi | 64% | 2392 fps | 95.3% |
| Ramshot TAC | <<locked>> | 90% | 47,558 psi | 79% | 2484 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 37,579 psi | 62% | 2352 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 37,260 psi | 62% | 2290 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,787 psi | 41% | 1388 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,421 psi | 64% | 2333 fps | 98.4% |
| ReloadSwiss RS 52 | 39.8 gr | 88% | 38,145 psi | 63% | 2434 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 31,691 psi | 53% | 2300 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 34,548 psi | 57% | 2241 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 82% | 31,749 psi | 53% | 2188 fps | 95% |
| Rottweil R 903 | <<locked>> | 92% | 34,853 psi | 58% | 2323 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 46,137 psi | 77% | 2467 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,689 psi | 49% | 2201 fps | 96.3% |
| Shooters World Precision | <<locked>> | 84% | 31,720 psi | 53% | 2211 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,727 psi | 68% | 2343 fps | 97.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,472 psi | 81% | 2175 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,859 psi | 71% | 2425 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 37,275 psi | 62% | 2379 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,901 psi | 68% | 2352 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 44,541 psi | 74% | 2448 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 37,376 psi | 62% | 2336 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,417 psi | 56% | 2175 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,992 psi | 45% | 2051 fps | 97.1% |
| Somchem S321 | <<locked>> | 80% | 36,201 psi | 60% | 2313 fps | 96.9% |
| Somchem S335 | <<locked>> | 80% | 32,605 psi | 54% | 2178 fps | 98.6% |
| Somchem S341 | <<locked>> | 86% | 38,653 psi | 64% | 2352 fps | 95.7% |
| Somchem S355 | <<locked>> | 90% | 34,069 psi | 57% | 2287 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 47,369 psi | 79% | 2349 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,159 psi | 63% | 2260 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,373 psi | 55% | 2185 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 28,253 psi | 47% | 2149 fps | 99.1% |
| Vihtavuori N140 | <<locked>> | 80% | 29,472 psi | 49% | 2149 fps | 97.3% |
| Vihtavuori N150 | <<locked>> | 88% | 30,501 psi | 51% | 2188 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 33,823 psi | 56% | 2238 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 80% | 28,326 psi | 47% | 2136 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 36,506 psi | 61% | 2303 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 32,358 psi | 54% | 2264 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 84% | 33,997 psi | 56% | 2287 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 88 powders for .308 Win. Ackley Improved loaded with the .308 | 175gr | Atomic 29 HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,700 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 175.0 gr projectile in 0.308" 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon CFE223 rank at the top here: for .308 Win. Ackley Improved with the .308 | 175gr | Atomic 29 HP 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.