Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 165gr | Frontier BTSP 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 Hodgdon BL-C2.
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% | 53,592 psi | 89% | 2520 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 52,750 psi | 88% | 2585 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 54,215 psi | 90% | 2664 fps | 97.6% |
| Accurate 2230 | <<locked>> | 84% | 51,082 psi | 85% | 2621 fps | 97.4% |
| Accurate 2460 | <<locked>> | 90% | 51,329 psi | 85% | 2602 fps | 99.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 51,793 psi | 86% | 2631 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 52,011 psi | 86% | 2651 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 47,993 psi | 80% | 2615 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 86% | 51,358 psi | 85% | 2500 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 51,735 psi | 86% | 2516 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 96% | 51,880 psi | 86% | 2651 fps | 98% |
| ADI AR 2207 | <<locked>> | 84% | 52,344 psi | 87% | 2530 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 49,429 psi | 82% | 2589 fps | 96.8% |
| ADI AR 2219 | <<locked>> | 88% | 53,766 psi | 89% | 2651 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 51,503 psi | 86% | 2615 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 96% | 52,881 psi | 88% | 2654 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 52,562 psi | 87% | 2713 fps | 98.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 51,213 psi | 85% | 2726 fps | 96.8% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 47,630 psi | 79% | 2605 fps | 98.2% |
| Alliant Reloder-10x | <<locked>> | 90% | 53,011 psi | 88% | 2598 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 52,025 psi | 86% | 2674 fps | 97.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 42,424 psi | 70% | 2575 fps | 96% |
| Alliant Reloder-7 | <<locked>> | 84% | 53,563 psi | 89% | 2546 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 53,301 psi | 89% | 2543 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 51,169 psi | 85% | 2651 fps | 96.8% |
| Bofors RP3ᴾ | <<locked>> | 100% | 47,471 psi | 79% | 2618 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 94% | 54,418 psi | 90% | 2612 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 96% | 52,808 psi | 88% | 2687 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 92% | 51,082 psi | 85% | 2713 fps | 97.4% |
| Hodgdon H322 | <<locked>> | 90% | 52,185 psi | 87% | 2631 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 53,214 psi | 88% | 2654 fps | 100% |
| Hodgdon H4198 | <<locked>> | 84% | 53,388 psi | 89% | 2546 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 52,228 psi | 87% | 2661 fps | 98.6% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 53,287 psi | 89% | 2726 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,692 psi | 56% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 53,867 psi | 89% | 2664 fps | 98.7% |
| IMR 3031 | <<locked>> | 98% | 53,592 psi | 89% | 2703 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 51,996 psi | 86% | 2618 fps | 97.5% |
| IMR 4198 | <<locked>> | 90% | 54,070 psi | 90% | 2562 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 53,229 psi | 88% | 2707 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 94% | 51,503 psi | 86% | 2615 fps | 98.9% |
| Lovex D073.4 | <<locked>> | 84% | 51,750 psi | 86% | 2615 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 90% | 51,329 psi | 85% | 2608 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 98% | 53,040 psi | 88% | 2677 fps | 99.9% |
| Lovex S060 | <<locked>> | 96% | 52,881 psi | 88% | 2589 fps | 98.1% |
| Lovex S062ᴾ | <<locked>> | 100% | 50,865 psi | 85% | 2621 fps | 98.9% |
| Norma 200 | <<locked>> | 86% | 53,287 psi | 89% | 2575 fps | 100% |
| Norma 201 | <<locked>> | 98% | 53,664 psi | 89% | 2648 fps | 99.2% |
| Norma 202 | <<locked>> | 98% | 53,693 psi | 89% | 2657 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 51,053 psi | 85% | 2661 fps | 98% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 51,488 psi | 86% | 2680 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 96% | 54,099 psi | 90% | 2687 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 92% | 53,301 psi | 89% | 2618 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,533 psi | 56% | 1594 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 51,474 psi | 86% | 2612 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 51,227 psi | 85% | 2726 fps | 97.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 45,353 psi | 75% | 2648 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 94% | 51,953 psi | 86% | 2602 fps | 99.9% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 53,722 psi | 89% | 2638 fps | 99.2% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 43,830 psi | 73% | 2546 fps | 97.2% |
| Shooters World AR Plus | <<locked>> | 84% | 51,750 psi | 86% | 2615 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 98% | 53,040 psi | 88% | 2677 fps | 99.9% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 50,865 psi | 85% | 2621 fps | 98.9% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 52,040 psi | 86% | 2582 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 52,895 psi | 88% | 2293 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 54,288 psi | 90% | 2661 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 46,441 psi | 77% | 2608 fps | 96.8% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 54,056 psi | 90% | 2612 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 53,272 psi | 89% | 2638 fps | 96.2% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 53,345 psi | 89% | 2667 fps | 98.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 53,577 psi | 89% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 48,950 psi | 81% | 2513 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 52,692 psi | 88% | 2654 fps | 99.3% |
| Somchem S335 | <<locked>> | 96% | 52,228 psi | 87% | 2569 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 52,388 psi | 87% | 2635 fps | 97.9% |
| Somchem S355ᴾ | <<locked>> | 100% | 45,455 psi | 76% | 2559 fps | 97.3% |
| Vihtavuori N120 | <<locked>> | 84% | 52,286 psi | 87% | 2480 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 53,650 psi | 89% | 2552 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 52,982 psi | 88% | 2559 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 51,837 psi | 86% | 2621 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 54,172 psi | 90% | 2638 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 43,555 psi | 72% | 2500 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 94% | 51,953 psi | 86% | 2612 fps | 99% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 52,663 psi | 87% | 2638 fps | 100% |
| Winchester 748 | <<locked>> | 96% | 53,650 psi | 89% | 2703 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 98% | 52,953 psi | 88% | 2677 fps | 98.7% |
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% | 50,227 psi | 83% | 2477 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 34,243 psi | 57% | 2283 fps | 99.5% |
| Accurate 2200 | <<locked>> | 80% | 44,367 psi | 74% | 2507 fps | 95.5% |
| Accurate 2230 | <<locked>> | 80% | 44,309 psi | 74% | 2513 fps | 96% |
| Accurate 2460 | <<locked>> | 80% | 36,666 psi | 61% | 2356 fps | 98.1% |
| Accurate 2495 | <<locked>> | 80% | 26,600 psi | 44% | 2175 fps | 98.2% |
| Accurate 2520 | <<locked>> | 80% | 32,227 psi | 54% | 2303 fps | 96.5% |
| Accurate 4064 | <<locked>> | 82% | 27,006 psi | 45% | 2198 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 42,844 psi | 71% | 2372 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 43,221 psi | 72% | 2382 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 88% | 40,451 psi | 67% | 2454 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 46,064 psi | 77% | 2444 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 43,758 psi | 73% | 2493 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 41,031 psi | 68% | 2457 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 35,563 psi | 59% | 2329 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 31,488 psi | 52% | 2306 fps | 100% |
| Alliant Power Pro 1200-R | 34.8 gr | 80% | 37,739 psi | 63% | 2451 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 45,020 psi | 75% | 2618 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 37,130 psi | 62% | 2418 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,117 psi | 65% | 2385 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 43,120 psi | 72% | 2526 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 39,784 psi | 66% | 2523 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 47,413 psi | 79% | 2461 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,481 psi | 69% | 2369 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 45,078 psi | 75% | 2552 fps | 95.3% |
| Bofors RP3 | <<locked>> | 92% | 36,332 psi | 60% | 2418 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,766 psi | 59% | 2293 fps | 96.2% |
| Hodgdon BL-C2 | 38 gr | 82% | 32,808 psi | 55% | 2333 fps | 95.3% |
| Hodgdon CFE223 | 40.8 gr | 86% | 41,785 psi | 69% | 2549 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 37,782 psi | 63% | 2398 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 80% | 38,130 psi | 63% | 2408 fps | 98.6% |
| Hodgdon H4198 | <<locked>> | 80% | 47,181 psi | 78% | 2457 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 86% | 38,087 psi | 63% | 2415 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 36,361 psi | 60% | 2425 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,758 psi | 41% | 1391 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 37,028 psi | 62% | 2375 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 29,965 psi | 50% | 2280 fps | 98.2% |
| IMR 4064 | <<locked>> | 92% | 40,915 psi | 68% | 2438 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 40,422 psi | 67% | 2365 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 38,928 psi | 65% | 2464 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 82% | 35,563 psi | 59% | 2329 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 44,904 psi | 75% | 2510 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 36,361 psi | 60% | 2352 fps | 96.8% |
| Lovex D073.6 | <<locked>> | 80% | 29,008 psi | 48% | 2238 fps | 95.1% |
| Lovex S060 | <<locked>> | 86% | 39,392 psi | 65% | 2362 fps | 95.1% |
| Lovex S062 | <<locked>> | 88% | 35,172 psi | 58% | 2343 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 44,135 psi | 73% | 2448 fps | 100% |
| Norma 201 | <<locked>> | 84% | 35,041 psi | 58% | 2323 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 30,443 psi | 51% | 2241 fps | 96.5% |
| Norma 203B | <<locked>> | 92% | 39,595 psi | 66% | 2467 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 94% | 42,569 psi | 71% | 2530 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 88% | 41,597 psi | 69% | 2487 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 41,278 psi | 69% | 2421 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,034 psi | 42% | 1430 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,463 psi | 62% | 2372 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 41,945 psi | 70% | 2566 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 33,054 psi | 55% | 2379 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 34,345 psi | 57% | 2290 fps | 97.5% |
| Rottweil R 902 | <<locked>> | 86% | 35,302 psi | 59% | 2320 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 94% | 36,260 psi | 60% | 2405 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 44,904 psi | 75% | 2510 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,008 psi | 48% | 2238 fps | 95.1% |
| Shooters World Precision | <<locked>> | 88% | 35,172 psi | 58% | 2343 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 39,682 psi | 66% | 2379 fps | 96.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 47,776 psi | 79% | 2231 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 41,684 psi | 69% | 2464 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 40,901 psi | 68% | 2507 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,697 psi | 66% | 2395 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 49,821 psi | 83% | 2589 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 41,307 psi | 69% | 2470 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,750 psi | 54% | 2215 fps | 97.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,513 psi | 44% | 2087 fps | 96% |
| Somchem S321 | <<locked>> | 80% | 35,273 psi | 59% | 2349 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 32,010 psi | 53% | 2218 fps | 97.8% |
| Somchem S341 | <<locked>> | 88% | 40,103 psi | 67% | 2438 fps | 95.2% |
| Somchem S355 | <<locked>> | 94% | 37,608 psi | 62% | 2418 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 46,122 psi | 77% | 2402 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,275 psi | 62% | 2303 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,590 psi | 54% | 2224 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 80% | 27,572 psi | 46% | 2185 fps | 98.3% |
| Vihtavuori N140 | <<locked>> | 80% | 28,834 psi | 48% | 2185 fps | 96.3% |
| Vihtavuori N150 | <<locked>> | 92% | 33,837 psi | 56% | 2316 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 82% | 35,346 psi | 59% | 2326 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 27,775 psi | 46% | 2172 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 31,604 psi | 53% | 2300 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 88% | 37,942 psi | 63% | 2425 fps | 95.4% |
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 | 165gr | Frontier BTSP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,562 fps to 2,726 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 56–90 %, leaving at least 10 % headroom. The 165.0 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, Hodgdon BL-C2 rank at the top here: for .308 Win. Ackley Improved with the .308 | 165gr | Frontier BTSP 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.