Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 166gr | Peregrine Glider (Glider Tactical) bullet and 86 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% | 52,765 psi | 88% | 2507 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 51,619 psi | 86% | 2566 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 52,968 psi | 88% | 2644 fps | 97.4% |
| Accurate 2230 | <<locked>> | 86% | 53,229 psi | 88% | 2651 fps | 97.8% |
| Accurate 2460 | <<locked>> | 92% | 53,621 psi | 89% | 2631 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,792 psi | 83% | 2605 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 50,502 psi | 84% | 2628 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 46,166 psi | 77% | 2585 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 88% | 53,664 psi | 89% | 2526 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 54,085 psi | 90% | 2546 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 98% | 54,056 psi | 90% | 2677 fps | 98.4% |
| ADI AR 2207 | <<locked>> | 86% | 54,128 psi | 90% | 2549 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 48,660 psi | 81% | 2572 fps | 96.7% |
| ADI AR 2219 | <<locked>> | 88% | 52,881 psi | 88% | 2635 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 53,693 psi | 89% | 2641 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 96% | 51,503 psi | 86% | 2635 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 51,213 psi | 85% | 2690 fps | 98.6% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 53,940 psi | 90% | 2766 fps | 97.4% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 46,354 psi | 77% | 2582 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 90% | 51,967 psi | 86% | 2579 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 50,734 psi | 84% | 2651 fps | 97.4% |
| Alliant Reloder-7 | <<locked>> | 84% | 52,185 psi | 87% | 2526 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 52,243 psi | 87% | 2526 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 53,722 psi | 89% | 2687 fps | 97.3% |
| Bofors RP3ᴾ | <<locked>> | 100% | 45,977 psi | 76% | 2592 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 94% | 53,243 psi | 88% | 2592 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 96% | 51,488 psi | 86% | 2667 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 94% | 53,664 psi | 89% | 2749 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 90% | 51,314 psi | 85% | 2615 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 52,344 psi | 87% | 2638 fps | 100% |
| Hodgdon H4198 | <<locked>> | 84% | 52,663 psi | 87% | 2533 fps | 100% |
| Hodgdon H4895 | <<locked>> | 98% | 54,404 psi | 90% | 2690 fps | 98.9% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 52,475 psi | 87% | 2710 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,243 psi | 55% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 52,721 psi | 88% | 2644 fps | 98.6% |
| IMR 3031 | <<locked>> | 98% | 52,199 psi | 87% | 2680 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 51,213 psi | 85% | 2605 fps | 97.5% |
| IMR 4198 | <<locked>> | 90% | 53,330 psi | 89% | 2549 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 51,909 psi | 86% | 2684 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 96% | 53,693 psi | 89% | 2641 fps | 99.2% |
| Lovex D073.4 | <<locked>> | 86% | 53,824 psi | 89% | 2641 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 92% | 53,679 psi | 89% | 2638 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 98% | 51,953 psi | 86% | 2657 fps | 99.8% |
| Lovex S053 | <<locked>> | 82% | 54,404 psi | 90% | 2457 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 52,141 psi | 87% | 2572 fps | 98% |
| Lovex S062ᴾ | <<locked>> | 100% | 49,864 psi | 83% | 2602 fps | 98.8% |
| Norma 200 | <<locked>> | 86% | 51,967 psi | 86% | 2559 fps | 100% |
| Norma 201 | <<locked>> | 98% | 52,243 psi | 87% | 2625 fps | 99.1% |
| Norma 202 | <<locked>> | 98% | 52,750 psi | 88% | 2641 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 49,734 psi | 83% | 2638 fps | 97.8% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 50,734 psi | 84% | 2664 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 96% | 52,939 psi | 88% | 2667 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 92% | 52,489 psi | 87% | 2602 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,315 psi | 55% | 1591 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 53,693 psi | 89% | 2638 fps | 99.8% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 53,505 psi | 89% | 2759 fps | 97.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,570 psi | 74% | 2631 fps | 99% |
| Rottweil R 901 | <<locked>> | 96% | 53,229 psi | 88% | 2618 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 52,634 psi | 87% | 2618 fps | 99.1% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 42,757 psi | 71% | 2530 fps | 97.1% |
| Shooters World AR Plus | <<locked>> | 86% | 53,824 psi | 89% | 2641 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 98% | 51,953 psi | 86% | 2657 fps | 99.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 49,864 psi | 83% | 2602 fps | 98.8% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 54,346 psi | 90% | 2608 fps | 99% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 52,098 psi | 87% | 2283 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 52,997 psi | 88% | 2641 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 45,295 psi | 75% | 2585 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 53,243 psi | 88% | 2598 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 51,909 psi | 86% | 2615 fps | 96% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 52,533 psi | 87% | 2651 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 52,257 psi | 87% | 2546 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 48,138 psi | 80% | 2500 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 51,372 psi | 85% | 2631 fps | 99.1% |
| Somchem S335 | <<locked>> | 98% | 53,867 psi | 89% | 2585 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 51,532 psi | 86% | 2621 fps | 97.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 44,121 psi | 73% | 2536 fps | 97.1% |
| Vihtavuori N120 | <<locked>> | 86% | 54,143 psi | 90% | 2500 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 52,344 psi | 87% | 2533 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 51,779 psi | 86% | 2539 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 50,792 psi | 84% | 2602 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 53,287 psi | 89% | 2621 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,598 psi | 71% | 2484 fps | 98% |
| Vihtavuori N530 | <<locked>> | 94% | 51,068 psi | 85% | 2598 fps | 98.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 51,387 psi | 85% | 2618 fps | 99.9% |
| Winchester 748 | <<locked>> | 96% | 52,373 psi | 87% | 2684 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 98% | 51,706 psi | 86% | 2657 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% | 49,400 psi | 82% | 2461 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 33,098 psi | 55% | 2264 fps | 99.4% |
| Accurate 2200 | <<locked>> | 80% | 43,482 psi | 72% | 2487 fps | 95.3% |
| Accurate 2230 | <<locked>> | 80% | 42,902 psi | 71% | 2487 fps | 95.7% |
| Accurate 2460 | <<locked>> | 80% | 35,404 psi | 59% | 2333 fps | 97.9% |
| Accurate 2495 | <<locked>> | 80% | 25,048 psi | 42% | 2139 fps | 97.7% |
| Accurate 2520 | <<locked>> | 80% | 30,792 psi | 51% | 2270 fps | 96% |
| Accurate 4064 | <<locked>> | 82% | 25,556 psi | 42% | 2162 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 42,090 psi | 70% | 2356 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 42,467 psi | 71% | 2369 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 88% | 39,175 psi | 65% | 2428 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 45,063 psi | 75% | 2428 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 42,946 psi | 71% | 2477 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 40,147 psi | 67% | 2441 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 34,360 psi | 57% | 2303 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 30,240 psi | 50% | 2277 fps | 100% |
| Alliant Power Pro 1200-R | 34.7 gr | 80% | 36,724 psi | 61% | 2428 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 46,876 psi | 78% | 2648 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 35,853 psi | 60% | 2392 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,000 psi | 63% | 2365 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 41,872 psi | 70% | 2503 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 46,021 psi | 76% | 2438 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,451 psi | 67% | 2349 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 43,932 psi | 73% | 2530 fps | 95.1% |
| Bofors RP3 | <<locked>> | 92% | 34,896 psi | 58% | 2388 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,592 psi | 57% | 2267 fps | 95.9% |
| Hodgdon BL-C2 | <<locked>> | 84% | 34,026 psi | 57% | 2359 fps | 95.8% |
| Hodgdon CFE223 | 41.6 gr | 88% | 43,729 psi | 73% | 2585 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 36,550 psi | 61% | 2372 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 80% | 36,912 psi | 61% | 2385 fps | 98.4% |
| Hodgdon H4198 | <<locked>> | 80% | 46,456 psi | 77% | 2441 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 86% | 37,101 psi | 62% | 2395 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 37,550 psi | 62% | 2448 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,555 psi | 41% | 1388 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 38,392 psi | 64% | 2402 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 28,964 psi | 48% | 2257 fps | 97.9% |
| IMR 4064 | <<locked>> | 94% | 42,163 psi | 70% | 2457 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 39,566 psi | 66% | 2349 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 40,292 psi | 67% | 2487 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 82% | 34,360 psi | 57% | 2303 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 43,743 psi | 73% | 2490 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 35,172 psi | 58% | 2329 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 82% | 29,646 psi | 49% | 2257 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 51,271 psi | 85% | 2418 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 40,872 psi | 68% | 2388 fps | 95.6% |
| Lovex S062 | <<locked>> | 88% | 34,069 psi | 57% | 2320 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 42,801 psi | 71% | 2428 fps | 100% |
| Norma 201 | <<locked>> | 84% | 33,634 psi | 56% | 2293 fps | 95% |
| Norma 202 | <<locked>> | 80% | 29,457 psi | 49% | 2221 fps | 96.2% |
| Norma 203B | <<locked>> | 92% | 38,624 psi | 64% | 2448 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 94% | 41,379 psi | 69% | 2507 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 40,350 psi | 67% | 2461 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 84% | 40,379 psi | 67% | 2405 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,468 psi | 41% | 1417 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,245 psi | 60% | 2346 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 41,002 psi | 68% | 2546 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 34,084 psi | 57% | 2405 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 32,735 psi | 54% | 2257 fps | 97.1% |
| Rottweil R 902 | <<locked>> | 86% | 33,910 psi | 56% | 2293 fps | 95% |
| Rottweil R 903 | <<locked>> | 96% | 37,072 psi | 62% | 2425 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 43,743 psi | 73% | 2490 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 29,646 psi | 49% | 2257 fps | 95.5% |
| Shooters World Precision | <<locked>> | 88% | 34,069 psi | 57% | 2320 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 38,493 psi | 64% | 2356 fps | 96% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,615 psi | 77% | 2215 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,466 psi | 67% | 2441 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 40,059 psi | 67% | 2487 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,783 psi | 64% | 2375 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 48,486 psi | 81% | 2566 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 40,451 psi | 67% | 2451 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,763 psi | 53% | 2192 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 25,614 psi | 43% | 2064 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 34,011 psi | 57% | 2323 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 30,951 psi | 51% | 2195 fps | 97.6% |
| Somchem S341 | <<locked>> | 90% | 41,916 psi | 70% | 2467 fps | 95.8% |
| Somchem S355 | <<locked>> | 96% | 38,812 psi | 64% | 2441 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 45,165 psi | 75% | 2385 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,274 psi | 60% | 2283 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 31,647 psi | 53% | 2205 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 80% | 26,527 psi | 44% | 2162 fps | 98.1% |
| Vihtavuori N140 | <<locked>> | 80% | 27,891 psi | 46% | 2162 fps | 95.9% |
| Vihtavuori N150 | <<locked>> | 92% | 32,590 psi | 54% | 2287 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 82% | 34,098 psi | 57% | 2300 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 82% | 28,442 psi | 47% | 2192 fps | 95.5% |
| Winchester 748 | 37.2 gr | 82% | 32,793 psi | 54% | 2326 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 36,767 psi | 61% | 2402 fps | 95.1% |
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 86 powders for .308 Win. Ackley Improved loaded with the .308 | 166gr | Peregrine Glider (Glider Tactical). Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,766 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,766 fps. Accurate 2495 gives the best case fill at 100 %, and 86 of the 86 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 166.0 gr projectile in 0.308" calls for a 1:10.5 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 .308 | 166gr | Peregrine Glider (Glider Tactical) 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.