Load Specifications
Load data in caliber .308 Win. with .308 | 135gr | Sierra VarmintKing bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Somchem S321 and Winchester 748.
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>> | 82% | 51,053 psi | 85% | 2789 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 52,750 psi | 88% | 2890 fps | 100% |
| Accurate 2460 | <<locked>> | 92% | 51,561 psi | 86% | 2904 fps | 99.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 47,543 psi | 79% | 2877 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 52,083 psi | 87% | 2953 fps | 99.1% |
| Accurate 4064ᴾ | <<locked>> | 100% | 44,121 psi | 73% | 2844 fps | 98.9% |
| Accurate LT-30 | <<locked>> | 88% | 51,953 psi | 86% | 2808 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 88% | 52,388 psi | 87% | 2822 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 98% | 51,634 psi | 86% | 2940 fps | 96.4% |
| ADI AR 2207 | <<locked>> | 86% | 52,301 psi | 87% | 2848 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 53,998 psi | 90% | 2966 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 96% | 51,677 psi | 86% | 2910 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 98% | 52,402 psi | 87% | 2969 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 51,967 psi | 86% | 3012 fps | 97.3% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,280 psi | 74% | 2835 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 92% | 53,185 psi | 88% | 2917 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 53,534 psi | 89% | 2858 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 53,853 psi | 89% | 2848 fps | 100% |
| Bofors RP3ᴾ | <<locked>> | 100% | 43,830 psi | 73% | 2838 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 94% | 51,300 psi | 85% | 2858 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 98% | 52,794 psi | 88% | 2986 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 92% | 52,199 psi | 87% | 2940 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 92% | 53,621 psi | 89% | 2966 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 86% | 53,679 psi | 89% | 2854 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 98% | 51,953 psi | 86% | 2953 fps | 97.1% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,067 psi | 83% | 2969 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,127 psi | 55% | 1765 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 53,867 psi | 89% | 2959 fps | 97.3% |
| IMR 3031ᴾ | <<locked>> | 100% | 53,171 psi | 88% | 3015 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 54,128 psi | 90% | 2884 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 53,621 psi | 89% | 2805 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 49,835 psi | 83% | 2946 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 96% | 51,677 psi | 86% | 2910 fps | 97.7% |
| Lovex D073.4 | <<locked>> | 86% | 51,648 psi | 86% | 2913 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 92% | 51,517 psi | 86% | 2904 fps | 98.5% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 52,779 psi | 88% | 2972 fps | 99.2% |
| Lovex S053 | <<locked>> | 82% | 52,518 psi | 87% | 2749 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 53,069 psi | 88% | 2881 fps | 96.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 47,761 psi | 79% | 2861 fps | 97.1% |
| Norma 200 | <<locked>> | 88% | 53,185 psi | 88% | 2890 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 53,534 psi | 89% | 2943 fps | 98.1% |
| Norma 202ᴾ | <<locked>> | 100% | 53,679 psi | 89% | 2963 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 98% | 54,215 psi | 90% | 2982 fps | 96.8% |
| Ramshot X-Terminator | <<locked>> | 94% | 53,563 psi | 89% | 2910 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,112 psi | 55% | 1808 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 53,983 psi | 90% | 2844 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 51,648 psi | 86% | 2913 fps | 98.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,641 psi | 71% | 2861 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 96% | 51,663 psi | 86% | 2900 fps | 99.3% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 50,676 psi | 84% | 2887 fps | 97.6% |
| Shooters World AR Plus | <<locked>> | 86% | 51,648 psi | 86% | 2913 fps | 98.9% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 52,779 psi | 88% | 2972 fps | 99.2% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 47,761 psi | 79% | 2861 fps | 97.1% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 52,359 psi | 87% | 2877 fps | 97.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 53,243 psi | 88% | 2598 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 54,331 psi | 90% | 2969 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 53,911 psi | 90% | 2927 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 53,330 psi | 89% | 2959 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 53,809 psi | 89% | 2867 fps | 99.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 46,137 psi | 77% | 2759 fps | 99.4% |
| Somchem S321 | <<locked>> | 94% | 52,620 psi | 87% | 2949 fps | 98.2% |
| Somchem S335 | <<locked>> | 98% | 52,025 psi | 86% | 2864 fps | 99.8% |
| Somchem S341 | <<locked>> | 98% | 52,649 psi | 87% | 2930 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 86% | 52,257 psi | 87% | 2795 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 53,664 psi | 89% | 2861 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 53,011 psi | 88% | 2864 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 48,399 psi | 80% | 2877 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 50,966 psi | 85% | 2894 fps | 99.6% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,799 psi | 68% | 2723 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 96% | 52,344 psi | 87% | 2913 fps | 97.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 49,081 psi | 82% | 2881 fps | 99.1% |
| Winchester 748 | <<locked>> | 98% | 53,577 psi | 89% | 3005 fps | 98.8% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 52,765 psi | 88% | 2969 fps | 97.3% |
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% | 47,790 psi | 79% | 2736 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 31,836 psi | 53% | 2497 fps | 97.9% |
| Accurate 2460 | <<locked>> | 80% | 34,185 psi | 57% | 2569 fps | 95.7% |
| Accurate 2495 | <<locked>> | 80% | 24,482 psi | 41% | 2359 fps | 95.4% |
| Accurate 2520 | <<locked>> | 84% | 34,229 psi | 57% | 2608 fps | 95.2% |
| Accurate 4064 | <<locked>> | 88% | 30,023 psi | 50% | 2530 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 40,741 psi | 68% | 2612 fps | 98.7% |
| Accurate LT-32 | <<locked>> | 80% | 41,046 psi | 68% | 2621 fps | 97.2% |
| ADI AR 2206H | <<locked>> | 94% | 45,629 psi | 76% | 2831 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 43,439 psi | 72% | 2710 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 38,348 psi | 64% | 2687 fps | 98.2% |
| ADI Benchmark 8208 | <<locked>> | 90% | 42,815 psi | 71% | 2753 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 29,138 psi | 48% | 2510 fps | 99.3% |
| Alliant Power Pro 1200-R | 41.3 gr | 86% | 42,888 psi | 71% | 2841 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 41,698 psi | 69% | 2782 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,593 psi | 61% | 2618 fps | 99.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,512 psi | 74% | 2713 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,015 psi | 65% | 2595 fps | 98.7% |
| Bofors RP3 | <<locked>> | 98% | 40,915 psi | 68% | 2782 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 84% | 38,014 psi | 63% | 2605 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 90% | 40,016 psi | 66% | 2756 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 35,085 psi | 58% | 2612 fps | 97.3% |
| Hodgdon H335 | <<locked>> | 80% | 35,534 psi | 59% | 2625 fps | 96.4% |
| Hodgdon H4198 | <<locked>> | 80% | 44,846 psi | 75% | 2707 fps | 99% |
| Hodgdon H4895 | <<locked>> | 92% | 42,902 psi | 71% | 2789 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 43,932 psi | 73% | 2851 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,308 psi | 40% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 44,773 psi | 74% | 2802 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 27,934 psi | 46% | 2477 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 37,985 psi | 63% | 2608 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 50,401 psi | 84% | 2756 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 46,630 psi | 77% | 2890 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 90% | 42,815 psi | 71% | 2753 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 41,727 psi | 69% | 2740 fps | 97.2% |
| Lovex D073.5 | <<locked>> | 84% | 38,856 psi | 65% | 2674 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 88% | 35,027 psi | 58% | 2641 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 49,443 psi | 82% | 2707 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 47,311 psi | 79% | 2782 fps | 95.4% |
| Lovex S062 | <<locked>> | 94% | 39,639 psi | 66% | 2707 fps | 95% |
| Norma 200 | <<locked>> | 80% | 41,582 psi | 69% | 2700 fps | 100% |
| Norma 201 | <<locked>> | 92% | 41,887 psi | 70% | 2736 fps | 95.6% |
| Norma 202 | <<locked>> | 84% | 32,416 psi | 54% | 2549 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 94% | 47,500 psi | 79% | 2871 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 90% | 47,224 psi | 78% | 2805 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,424 psi | 41% | 1614 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 50,531 psi | 84% | 2792 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 37,391 psi | 62% | 2638 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 39,958 psi | 66% | 2799 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 82% | 34,055 psi | 57% | 2549 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 94% | 42,119 psi | 70% | 2730 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 41,727 psi | 69% | 2740 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 88% | 35,027 psi | 58% | 2641 fps | 95.5% |
| Shooters World Precision | <<locked>> | 94% | 39,639 psi | 66% | 2707 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 42,554 psi | 71% | 2703 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,397 psi | 75% | 2490 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,972 psi | 65% | 2694 fps | 97.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,144 psi | 62% | 2625 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 47,152 psi | 78% | 2854 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 32,677 psi | 54% | 2467 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 29,834 psi | 50% | 2415 fps | 95.4% |
| Somchem S321 | 44.4 gr | 86% | 40,190 psi | 67% | 2723 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 30,168 psi | 50% | 2425 fps | 95.4% |
| Somchem S341 | <<locked>> | 96% | 49,298 psi | 82% | 2874 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 43,497 psi | 72% | 2664 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,983 psi | 58% | 2530 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 80% | 30,458 psi | 51% | 2434 fps | 97.3% |
| Vihtavuori N135 | <<locked>> | 80% | 25,585 psi | 43% | 2375 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 84% | 30,661 psi | 51% | 2484 fps | 95% |
| Vihtavuori N150 | <<locked>> | 98% | 38,072 psi | 63% | 2667 fps | 95% |
| Vihtavuori N530 | <<locked>> | 88% | 40,161 psi | 67% | 2694 fps | 95% |
| Vihtavuori N540 | <<locked>> | 88% | 33,272 psi | 55% | 2562 fps | 95.4% |
| Winchester 748 | 44.2 gr | 88% | 38,508 psi | 64% | 2723 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 94% | 43,250 psi | 72% | 2802 fps | 95% |
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 92 powders for .308 Win. loaded with the .308 | 135gr | Sierra VarmintKing. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,018 fps; across all powders the maximum-charge window runs from 1,765 fps to 3,018 fps. Accurate 2495 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.308" calls for a 1:17.0 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. Alliant Power Pro 1200-R, Somchem S321, Winchester 748 rank at the top here: for .308 Win. with the .308 | 135gr | Sierra VarmintKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2208, Alliant Power Pro 2000-MR, Alliant Reloder-17 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.