Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 110gr | Sierra FMJ RN SportsMaster bullet and 45 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, Shooters World AR Plus and SNPE Vectan SP 3.
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% | 51,387 psi | 85% | 3081 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 51,242 psi | 85% | 3166 fps | 99.7% |
| Accurate 2460 | <<locked>> | 98% | 53,983 psi | 90% | 3225 fps | 98.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 39,421 psi | 65% | 3015 fps | 98.4% |
| Accurate 2520ᴾ | <<locked>> | 100% | 50,415 psi | 84% | 3205 fps | 97.2% |
| Accurate LT-30 | <<locked>> | 92% | 52,156 psi | 87% | 3094 fps | 99% |
| Accurate LT-32 | <<locked>> | 92% | 52,605 psi | 87% | 3104 fps | 97.5% |
| ADI AR 2207 | <<locked>> | 90% | 51,590 psi | 86% | 3153 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 53,330 psi | 89% | 3251 fps | 99% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 47,659 psi | 79% | 3202 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 51,851 psi | 86% | 3202 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 53,301 psi | 89% | 3159 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 53,809 psi | 89% | 3130 fps | 99.4% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 54,186 psi | 90% | 3179 fps | 96.7% |
| Hodgdon H322 | <<locked>> | 96% | 51,227 psi | 85% | 3219 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 96% | 52,794 psi | 88% | 3241 fps | 98.2% |
| Hodgdon H4198 | <<locked>> | 90% | 53,983 psi | 90% | 3146 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,879 psi | 53% | 1949 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 45,049 psi | 75% | 3169 fps | 98.5% |
| IMR 4198 | <<locked>> | 96% | 53,301 psi | 89% | 3179 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 53,983 psi | 90% | 3117 fps | 100% |
| Lovex D073.4 | <<locked>> | 90% | 51,068 psi | 85% | 3189 fps | 97% |
| Lovex D073.5 | <<locked>> | 98% | 54,331 psi | 90% | 3228 fps | 97.1% |
| Lovex S053 | <<locked>> | 86% | 52,344 psi | 87% | 3058 fps | 100% |
| Norma 200 | <<locked>> | 92% | 52,083 psi | 87% | 3182 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 46,151 psi | 77% | 3120 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,647 psi | 53% | 1995 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 53,795 psi | 89% | 3150 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 51,082 psi | 85% | 3182 fps | 96.9% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 50,328 psi | 84% | 3163 fps | 97.6% |
| Shooters World AR Plus | <<locked>> | 90% | 51,068 psi | 85% | 3189 fps | 97% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 53,069 psi | 88% | 2897 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 54,114 psi | 90% | 3258 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 52,982 psi | 88% | 3212 fps | 99.5% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 49,922 psi | 83% | 3084 fps | 97.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 39,929 psi | 66% | 2904 fps | 96.4% |
| Somchem S321 | <<locked>> | 98% | 51,967 psi | 86% | 3215 fps | 95.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 48,109 psi | 80% | 3077 fps | 98.2% |
| Vihtavuori N120 | <<locked>> | 90% | 51,605 psi | 86% | 3097 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 52,881 psi | 88% | 3146 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 48,878 psi | 81% | 3087 fps | 99.4% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 40,727 psi | 68% | 3028 fps | 98.5% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,540 psi | 72% | 3038 fps | 96.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,119 psi | 70% | 3018 fps | 95.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 49,110 psi | 82% | 3202 fps | 95.9% |
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% | 42,018 psi | 70% | 2910 fps | 99.2% |
| Accurate 2015 | <<locked>> | 84% | 30,908 psi | 51% | 2726 fps | 95.4% |
| Accurate 2460 | <<locked>> | 90% | 41,060 psi | 68% | 2986 fps | 95.4% |
| Accurate 2495 | <<locked>> | 92% | 29,820 psi | 50% | 2776 fps | 95.5% |
| Accurate 2520 | <<locked>> | 96% | 43,627 psi | 72% | 3081 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 36,042 psi | 60% | 2766 fps | 95.5% |
| Accurate LT-32 | <<locked>> | 86% | 43,671 psi | 73% | 2933 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 37,710 psi | 63% | 2897 fps | 100% |
| ADI AR 2219 | <<locked>> | 84% | 37,942 psi | 63% | 2943 fps | 95.8% |
| Alliant AR-Comp | <<locked>> | 80% | 25,179 psi | 42% | 2618 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,459 psi | 52% | 2762 fps | 96.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,247 psi | 65% | 2894 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,200 psi | 57% | 2736 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 96% | 48,022 psi | 80% | 3071 fps | 95.3% |
| Hodgdon H322 | 42.1 gr | 86% | 36,927 psi | 61% | 2917 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 88% | 40,132 psi | 67% | 2992 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 39,769 psi | 66% | 2867 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,424 psi | 39% | 1745 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 34,925 psi | 58% | 2930 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 33,446 psi | 56% | 2772 fps | 98.3% |
| IMR 4227 | <<locked>> | 80% | 44,976 psi | 75% | 2966 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 44,280 psi | 74% | 3061 fps | 95.5% |
| Lovex D073.5 | <<locked>> | 94% | 47,137 psi | 78% | 3104 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 44,092 psi | 73% | 2920 fps | 100% |
| Norma 200 | <<locked>> | 80% | 35,694 psi | 59% | 2858 fps | 98.7% |
| Norma 202 | <<locked>> | 96% | 40,393 psi | 67% | 2999 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,409 psi | 39% | 1788 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,802 psi | 74% | 2999 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 44,802 psi | 74% | 3064 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 92% | 39,697 psi | 66% | 2943 fps | 95% |
| Shooters World AR Plus | 45.2 gr | 86% | 44,280 psi | 74% | 3061 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,785 psi | 68% | 2707 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 41,263 psi | 69% | 3009 fps | 95.6% |
| SNPE Vectan SP 3 | 38 gr | 82% | 34,098 psi | 57% | 2818 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 41,350 psi | 69% | 2920 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 37,579 psi | 62% | 2851 fps | 95.7% |
| Somchem S321 | <<locked>> | 96% | 48,660 psi | 81% | 3156 fps | 95.2% |
| Somchem S335 | <<locked>> | 92% | 37,507 psi | 62% | 2858 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 37,840 psi | 63% | 2858 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,429 psi | 51% | 2671 fps | 96.1% |
| Vihtavuori N133 | <<locked>> | 86% | 31,792 psi | 53% | 2717 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 92% | 31,691 psi | 53% | 2805 fps | 95.9% |
| Vihtavuori N140 | <<locked>> | 96% | 38,450 psi | 64% | 2927 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 98% | 39,450 psi | 66% | 2959 fps | 95% |
| Winchester 748 | <<locked>> | 98% | 46,050 psi | 77% | 3143 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 45 powders for .308 Win. Ackley Improved loaded with the .308 | 110gr | Sierra FMJ RN SportsMaster. SNPE Vectan SP 10 delivers the highest muzzle velocity at 3,258 fps; across all powders the maximum-charge window runs from 1,949 fps to 3,258 fps. Accurate 2015 gives the best case fill at 100 %, and 45 of the 45 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. 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, Shooters World AR Plus, SNPE Vectan SP 3 rank at the top here: for .308 Win. Ackley Improved with the .308 | 110gr | Sierra FMJ RN SportsMaster 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.