Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 115gr | Lehigh Defense Controlled Chaos bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, SNPE Vectan SP 10 and ADI AR 2219.
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% | 52,997 psi | 88% | 3045 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 53,200 psi | 88% | 3133 fps | 99.9% |
| Accurate 2460 | <<locked>> | 96% | 52,199 psi | 87% | 3140 fps | 98.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,089 psi | 68% | 2989 fps | 99% |
| Accurate 2520ᴾ | <<locked>> | 100% | 52,330 psi | 87% | 3179 fps | 98% |
| Accurate 4064ᴾ | <<locked>> | 100% | 38,203 psi | 63% | 2943 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 92% | 53,359 psi | 89% | 3054 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 92% | 53,809 psi | 89% | 3064 fps | 98.1% |
| ADI AR 2207 | <<locked>> | 90% | 52,910 psi | 88% | 3104 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 51,343 psi | 85% | 3159 fps | 99.1% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 52,417 psi | 87% | 3143 fps | 96.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,226 psi | 82% | 3163 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 53,737 psi | 89% | 3166 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 51,576 psi | 86% | 3068 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 51,953 psi | 86% | 3038 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 98% | 52,504 psi | 87% | 3097 fps | 96.8% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 49,908 psi | 83% | 3159 fps | 96.4% |
| Hodgdon H322 | <<locked>> | 96% | 53,156 psi | 88% | 3186 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 94% | 51,010 psi | 85% | 3150 fps | 98.3% |
| Hodgdon H4198 | <<locked>> | 88% | 52,112 psi | 87% | 3054 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,256 psi | 54% | 1913 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 46,557 psi | 77% | 3140 fps | 99.1% |
| IMR 4198 | <<locked>> | 94% | 51,866 psi | 86% | 3091 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 52,228 psi | 87% | 3025 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 52,417 psi | 87% | 3143 fps | 96.2% |
| Lovex D073.4 | <<locked>> | 90% | 53,127 psi | 88% | 3163 fps | 97.9% |
| Lovex D073.5 | <<locked>> | 96% | 52,475 psi | 87% | 3140 fps | 97.2% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 46,267 psi | 77% | 3087 fps | 96.8% |
| Lovex S053 | <<locked>> | 86% | 53,824 psi | 89% | 3012 fps | 100% |
| Norma 200 | <<locked>> | 92% | 53,940 psi | 90% | 3146 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 47,674 psi | 79% | 3091 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,111 psi | 53% | 1955 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 52,257 psi | 87% | 3061 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 52,910 psi | 88% | 3156 fps | 97.7% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 51,779 psi | 86% | 3127 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 90% | 53,127 psi | 88% | 3163 fps | 97.9% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 46,267 psi | 77% | 3087 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 54,143 psi | 90% | 3117 fps | 96% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 54,360 psi | 90% | 2851 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 52,286 psi | 87% | 3166 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 51,648 psi | 86% | 3127 fps | 99.6% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 51,271 psi | 85% | 3048 fps | 98.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,060 psi | 68% | 2874 fps | 97.3% |
| Somchem S321 | <<locked>> | 98% | 53,969 psi | 90% | 3189 fps | 96.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,501 psi | 82% | 3041 fps | 98.7% |
| Vihtavuori N120 | <<locked>> | 90% | 52,982 psi | 88% | 3051 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 54,331 psi | 90% | 3107 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 50,314 psi | 84% | 3051 fps | 99.7% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,221 psi | 70% | 2999 fps | 99.1% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,223 psi | 75% | 3012 fps | 97.6% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 53,171 psi | 88% | 3146 fps | 96.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,729 psi | 73% | 2999 fps | 96.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 51,068 psi | 85% | 3182 fps | 96.9% |
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% | 43,337 psi | 72% | 2877 fps | 99.6% |
| Accurate 2015 | <<locked>> | 82% | 29,936 psi | 50% | 2648 fps | 95.5% |
| Accurate 2460 | <<locked>> | 88% | 39,697 psi | 66% | 2900 fps | 95.5% |
| Accurate 2495 | <<locked>> | 90% | 29,124 psi | 48% | 2703 fps | 95.7% |
| Accurate 2520 | <<locked>> | 92% | 39,436 psi | 66% | 2936 fps | 95% |
| Accurate 4064 | <<locked>> | 98% | 35,853 psi | 60% | 2887 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 37,115 psi | 62% | 2736 fps | 96.4% |
| Accurate LT-32 | <<locked>> | 84% | 42,395 psi | 70% | 2851 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 39,001 psi | 65% | 2858 fps | 100% |
| ADI AR 2219 | 40.4 gr | 80% | 34,345 psi | 57% | 2795 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 98% | 49,153 psi | 82% | 3084 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 25,889 psi | 43% | 2598 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,605 psi | 54% | 2736 fps | 97.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,219 psi | 67% | 2854 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,317 psi | 59% | 2713 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 94% | 46,615 psi | 77% | 2989 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 98% | 46,296 psi | 77% | 3094 fps | 95.5% |
| Hodgdon H322 | 41 gr | 84% | 35,781 psi | 59% | 2835 fps | 95.7% |
| Hodgdon H335 | <<locked>> | 86% | 38,769 psi | 64% | 2907 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 40,872 psi | 68% | 2838 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,743 psi | 39% | 1709 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 31,966 psi | 53% | 2792 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 34,476 psi | 57% | 2743 fps | 98.9% |
| IMR 4227 | <<locked>> | 80% | 46,238 psi | 77% | 2923 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 49,153 psi | 82% | 3084 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 84% | 42,714 psi | 71% | 2972 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 92% | 45,571 psi | 76% | 3015 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 96% | 40,277 psi | 67% | 2966 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 45,339 psi | 75% | 2881 fps | 100% |
| Norma 200 | <<locked>> | 80% | 37,014 psi | 61% | 2831 fps | 99.2% |
| Norma 202 | <<locked>> | 94% | 39,262 psi | 65% | 2917 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,496 psi | 39% | 1745 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,166 psi | 77% | 2959 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 43,526 psi | 72% | 2979 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 90% | 38,537 psi | 64% | 2861 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 84% | 42,714 psi | 71% | 2972 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 96% | 40,277 psi | 67% | 2966 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 50,343 psi | 84% | 3054 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,814 psi | 69% | 2661 fps | 100% |
| SNPE Vectan SP 10 | 43.9 gr | 84% | 39,827 psi | 66% | 2923 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,185 psi | 55% | 2740 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 37,666 psi | 63% | 2782 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 34,301 psi | 57% | 2717 fps | 95.1% |
| Somchem S321 | <<locked>> | 94% | 47,050 psi | 78% | 3068 fps | 95.3% |
| Somchem S335 | <<locked>> | 88% | 34,389 psi | 57% | 2730 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 39,146 psi | 65% | 2818 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,415 psi | 52% | 2648 fps | 97% |
| Vihtavuori N133 | <<locked>> | 84% | 30,777 psi | 51% | 2638 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 88% | 29,022 psi | 48% | 2674 fps | 95.3% |
| Vihtavuori N140 | <<locked>> | 94% | 37,376 psi | 62% | 2848 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 98% | 49,661 psi | 83% | 3084 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 96% | 38,421 psi | 64% | 2884 fps | 95.2% |
| Winchester 748 | <<locked>> | 96% | 44,512 psi | 74% | 3058 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 81 powders for .308 Win. Ackley Improved loaded with the .308 | 115gr | Lehigh Defense Controlled Chaos. Hodgdon CFE223 delivers the highest muzzle velocity at 3,235 fps; across all powders the maximum-charge window runs from 1,913 fps to 3,235 fps. Accurate 2015 gives the best case fill at 100 %, and 81 of the 81 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 115.0 gr projectile in 0.308" calls for a 1:13.0 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. Hodgdon H322, SNPE Vectan SP 10, ADI AR 2219 rank at the top here: for .308 Win. Ackley Improved with the .308 | 115gr | Lehigh Defense Controlled Chaos they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, ADI AR 2206H burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.