Load Specifications
Load data in caliber .308 Win. Ackley Improved with .311 | 104gr | CutEdge ESP Raptor bullet and 32 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Norma 200 and ADI AR 2207.
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>> | 90% | 52,620 psi | 87% | 3153 fps | 99.7% |
| Accurate 2015ᴾ | <<locked>> | 100% | 44,295 psi | 74% | 3097 fps | 98.2% |
| Accurate 2460ᴾ | <<locked>> | 100% | 49,559 psi | 82% | 3202 fps | 96.3% |
| Accurate LT-30 | <<locked>> | 96% | 52,823 psi | 88% | 3150 fps | 98.3% |
| Accurate LT-32 | <<locked>> | 96% | 53,330 psi | 89% | 3156 fps | 96.5% |
| ADI AR 2205 | <<locked>> | 82% | 51,416 psi | 85% | 3022 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 54,346 psi | 90% | 3261 fps | 100% |
| ADI AR 2219 | <<locked>> | 98% | 53,461 psi | 89% | 3304 fps | 98.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,060 psi | 68% | 3127 fps | 99.5% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 51,416 psi | 85% | 3255 fps | 99.7% |
| Alliant Reloder-7 | <<locked>> | 94% | 53,461 psi | 89% | 3219 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 51,068 psi | 85% | 3130 fps | 98.3% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 51,198 psi | 85% | 3264 fps | 97.9% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 52,721 psi | 88% | 3284 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 92% | 51,590 psi | 86% | 3153 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,748 psi | 51% | 1965 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 53,432 psi | 89% | 3238 fps | 100% |
| IMR 4227 | <<locked>> | 88% | 51,779 psi | 86% | 3143 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 51,735 psi | 86% | 3186 fps | 99.9% |
| Lovex S053 | <<locked>> | 90% | 52,678 psi | 88% | 3130 fps | 100% |
| Norma 200 | <<locked>> | 96% | 51,459 psi | 85% | 3238 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,371 psi | 50% | 2008 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 54,433 psi | 90% | 3222 fps | 100% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 51,735 psi | 86% | 3186 fps | 99.9% |
| Shooters World SOCOM | <<locked>> | 82% | 52,750 psi | 88% | 3146 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 53,534 psi | 89% | 2969 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 98% | 54,157 psi | 90% | 3307 fps | 97.4% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 52,852 psi | 88% | 3264 fps | 98.8% |
| Vihtavuori N110 | <<locked>> | 84% | 51,996 psi | 86% | 3035 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 51,416 psi | 85% | 3163 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 49,443 psi | 82% | 3143 fps | 99.4% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,815 psi | 71% | 3025 fps | 97.7% |
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% | 37,304 psi | 62% | 2858 fps | 97.5% |
| Accurate 2015 | <<locked>> | 92% | 33,968 psi | 56% | 2867 fps | 95.3% |
| Accurate 2460 | <<locked>> | 98% | 46,035 psi | 76% | 3136 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 86% | 38,595 psi | 64% | 2871 fps | 95% |
| Accurate LT-32 | <<locked>> | 92% | 47,137 psi | 78% | 3041 fps | 95.1% |
| ADI AR 2205 | <<locked>> | 80% | 48,254 psi | 80% | 2972 fps | 100% |
| ADI AR 2207 | 34.6 gr | 80% | 32,663 psi | 54% | 2838 fps | 99.3% |
| ADI AR 2219 | 43 gr | 90% | 40,683 psi | 68% | 3054 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 88% | 27,818 psi | 46% | 2759 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 84% | 30,777 psi | 51% | 2802 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,200 psi | 57% | 2828 fps | 97.2% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 39,204 psi | 65% | 2904 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 94% | 42,192 psi | 70% | 3087 fps | 95.8% |
| Hodgdon H335 | <<locked>> | 96% | 46,093 psi | 77% | 3163 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 86% | 42,699 psi | 71% | 2979 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,466 psi | 37% | 1759 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 29,617 psi | 49% | 2710 fps | 95.8% |
| IMR 4227 | <<locked>> | 80% | 40,393 psi | 67% | 2930 fps | 99.7% |
| Lovex D060 | <<locked>> | 80% | 48,573 psi | 81% | 3127 fps | 99.7% |
| Lovex S053 | <<locked>> | 80% | 39,291 psi | 65% | 2894 fps | 100% |
| Norma 200 | 36.2 gr | 80% | 30,356 psi | 50% | 2779 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,046 psi | 37% | 1795 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 39,581 psi | 66% | 2953 fps | 99.5% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 48,573 psi | 81% | 3127 fps | 99.7% |
| Shooters World SOCOM | <<locked>> | 80% | 49,197 psi | 82% | 3087 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,709 psi | 61% | 2697 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 43,918 psi | 73% | 3117 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 36,013 psi | 60% | 2917 fps | 95% |
| Vihtavuori N110 | <<locked>> | 80% | 46,064 psi | 77% | 2943 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 32,880 psi | 55% | 2808 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 86% | 31,778 psi | 53% | 2762 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 94% | 35,375 psi | 59% | 2858 fps | 95.6% |
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 32 powders for .308 Win. Ackley Improved loaded with the .311 | 104gr | CutEdge ESP Raptor. SNPE Vectan SP 10 delivers the highest muzzle velocity at 3,307 fps; across all powders the maximum-charge window runs from 1,965 fps to 3,307 fps. Accurate 2015 gives the best case fill at 100 %, and 32 of the 32 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 104.0 gr projectile in 0.311" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Alliant AR-Comp 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. ADI AR 2219, Norma 200, ADI AR 2207 rank at the top here: for .308 Win. Ackley Improved with the .311 | 104gr | CutEdge ESP 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.