Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 135gr | CutEdge ER Raptor bullet and 57 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, ADI AR 2219 and ReloadSwiss RS 40.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 86% | 53,098 psi | 88% | 2789 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 53,113 psi | 88% | 2874 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 52,127 psi | 87% | 2887 fps | 99% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,814 psi | 68% | 2749 fps | 99.6% |
| Accurate 2520ᴾ | <<locked>> | 100% | 52,750 psi | 88% | 2936 fps | 98.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 37,942 psi | 63% | 2710 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 92% | 53,722 psi | 89% | 2805 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 92% | 54,215 psi | 90% | 2815 fps | 98.9% |
| ADI AR 2207 | <<locked>> | 90% | 53,316 psi | 89% | 2841 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 51,735 psi | 86% | 2907 fps | 99.7% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 52,765 psi | 88% | 2897 fps | 97.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,501 psi | 82% | 2907 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 53,040 psi | 88% | 2999 fps | 96.9% |
| Alliant Reloder-10x | <<locked>> | 96% | 53,969 psi | 90% | 2904 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 51,953 psi | 86% | 2812 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 52,112 psi | 87% | 2795 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 98% | 52,605 psi | 87% | 2848 fps | 97.8% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 49,748 psi | 83% | 2913 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 96% | 53,301 psi | 89% | 2930 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 94% | 51,082 psi | 85% | 2897 fps | 99.1% |
| Hodgdon H4198 | <<locked>> | 88% | 52,576 psi | 87% | 2805 fps | 99.5% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 49,676 psi | 83% | 2887 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,010 psi | 53% | 1719 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 47,065 psi | 78% | 2897 fps | 99.7% |
| IMR 4198 | <<locked>> | 94% | 52,344 psi | 87% | 2831 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 52,576 psi | 87% | 2762 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 52,765 psi | 88% | 2897 fps | 97.3% |
| Lovex D073.4 | <<locked>> | 90% | 53,200 psi | 88% | 2910 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 96% | 52,388 psi | 87% | 2890 fps | 98.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 46,282 psi | 77% | 2848 fps | 97.9% |
| Lovex S053 | <<locked>> | 86% | 54,114 psi | 90% | 2749 fps | 100% |
| Norma 200 | <<locked>> | 92% | 53,838 psi | 89% | 2881 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 47,834 psi | 79% | 2822 fps | 96.5% |
| Norma 202ᴾ | <<locked>> | 100% | 47,674 psi | 79% | 2844 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,894 psi | 53% | 1759 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 52,272 psi | 87% | 2795 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 52,968 psi | 88% | 2904 fps | 98.6% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 51,576 psi | 86% | 2874 fps | 99% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 45,107 psi | 75% | 2762 fps | 95.8% |
| Shooters World AR Plus | <<locked>> | 90% | 53,200 psi | 88% | 2910 fps | 98.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 46,282 psi | 77% | 2848 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 54,172 psi | 90% | 2871 fps | 97.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 51,880 psi | 86% | 2559 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 52,373 psi | 87% | 2913 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 51,822 psi | 86% | 2867 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 51,416 psi | 85% | 2802 fps | 99% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,060 psi | 68% | 2644 fps | 98.2% |
| Somchem S321 | <<locked>> | 98% | 54,070 psi | 90% | 2943 fps | 97.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,705 psi | 83% | 2802 fps | 99.4% |
| Vihtavuori N120 | <<locked>> | 90% | 53,388 psi | 89% | 2789 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 51,532 psi | 86% | 2808 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 50,560 psi | 84% | 2802 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,293 psi | 70% | 2759 fps | 99.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,295 psi | 75% | 2776 fps | 98.5% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 53,330 psi | 89% | 2897 fps | 97.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,569 psi | 72% | 2762 fps | 97.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 51,053 psi | 85% | 2933 fps | 97.9% |
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% | 43,381 psi | 72% | 2638 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 27,847 psi | 46% | 2379 fps | 96% |
| Accurate 2460 | <<locked>> | 84% | 34,243 psi | 57% | 2556 fps | 95.1% |
| Accurate 2495 | <<locked>> | 86% | 24,961 psi | 41% | 2375 fps | 95.2% |
| Accurate 2520 | <<locked>> | 90% | 36,767 psi | 61% | 2654 fps | 95.5% |
| Accurate 4064 | <<locked>> | 96% | 33,286 psi | 55% | 2608 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 37,173 psi | 62% | 2513 fps | 97.5% |
| Accurate LT-32 | <<locked>> | 80% | 37,579 psi | 62% | 2516 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 39,073 psi | 65% | 2615 fps | 100% |
| ADI AR 2219 | 36.6 gr | 80% | 34,258 psi | 57% | 2572 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 94% | 43,497 psi | 72% | 2736 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 25,701 psi | 43% | 2392 fps | 97.7% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 46,325 psi | 77% | 2884 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,561 psi | 54% | 2513 fps | 98.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,205 psi | 67% | 2615 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,317 psi | 59% | 2497 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 41,176 psi | 68% | 2648 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 94% | 40,408 psi | 67% | 2743 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 31,299 psi | 52% | 2497 fps | 95.3% |
| Hodgdon H335 | <<locked>> | 82% | 33,953 psi | 56% | 2566 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 41,060 psi | 68% | 2605 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 98% | 46,528 psi | 77% | 2831 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,699 psi | 39% | 1539 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 29,950 psi | 50% | 2520 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 34,461 psi | 57% | 2513 fps | 99.5% |
| IMR 4227 | <<locked>> | 80% | 46,630 psi | 77% | 2674 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 43,497 psi | 72% | 2736 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 80% | 36,883 psi | 61% | 2615 fps | 95.2% |
| Lovex D073.5 | <<locked>> | 88% | 39,421 psi | 65% | 2664 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 94% | 37,536 psi | 62% | 2680 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 45,411 psi | 75% | 2625 fps | 100% |
| Norma 200 | <<locked>> | 80% | 36,608 psi | 61% | 2589 fps | 99.7% |
| Norma 201 | <<locked>> | 96% | 42,192 psi | 70% | 2717 fps | 95% |
| Norma 202 | <<locked>> | 90% | 34,606 psi | 57% | 2589 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,467 psi | 39% | 1575 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,180 psi | 77% | 2703 fps | 100% |
| ReloadSwiss RS 40 | 38.9 gr | 86% | 38,145 psi | 63% | 2635 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 88% | 35,955 psi | 60% | 2579 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 98% | 42,192 psi | 70% | 2710 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 36,883 psi | 61% | 2615 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 94% | 37,536 psi | 62% | 2680 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 47,079 psi | 78% | 2759 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,916 psi | 70% | 2421 fps | 100% |
| SNPE Vectan SP 10 | 37.9 gr | 80% | 34,679 psi | 58% | 2575 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,301 psi | 55% | 2520 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 35,273 psi | 59% | 2507 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 32,126 psi | 53% | 2454 fps | 95.7% |
| Somchem S321 | <<locked>> | 92% | 43,801 psi | 73% | 2772 fps | 95.8% |
| Somchem S335 | <<locked>> | 86% | 32,097 psi | 53% | 2457 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 39,291 psi | 65% | 2575 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,415 psi | 52% | 2431 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 80% | 27,238 psi | 45% | 2329 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 86% | 27,093 psi | 45% | 2411 fps | 95.9% |
| Vihtavuori N140 | <<locked>> | 90% | 32,822 psi | 55% | 2520 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 94% | 43,555 psi | 72% | 2733 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 94% | 35,810 psi | 59% | 2602 fps | 95.7% |
| Winchester 748 | <<locked>> | 94% | 41,684 psi | 69% | 2766 fps | 95.8% |
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 57 powders for .308 Win. Ackley Improved loaded with the .308 | 135gr | CutEdge ER Raptor. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,719 fps to 2,999 fps. Accurate 2015 gives the best case fill at 100 %, and 57 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.308" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 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. SNPE Vectan SP 10, ADI AR 2219, ReloadSwiss RS 40 rank at the top here: for .308 Win. Ackley Improved with the .308 | 135gr | CutEdge ER Raptor 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.