Load Specifications
Bullet:.308 | 150gr | Barnes X S
Bullet Manufacturer:Barnes
Bullet Weight:150 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:7.62 UKM load data
Case Length (l3):2.244"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:95.5 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:13.0
Load data in caliber 7.62 UKM with .308 | 150gr | Barnes X S bullet and 86 powders. The key underlying parameters are shown in the table above.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 55,550 psi | 87% | 3038 fps | 98.2% |
| Accurate 3100 | <<locked>> | 98% | 54,868 psi | 86% | 3097 fps | 99.3% |
| Accurate 4064 | <<locked>> | 82% | 56,478 psi | 89% | 3054 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 56,637 psi | 89% | 3153 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 55,361 psi | 87% | 3235 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 54,679 psi | 86% | 3064 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 56,695 psi | 89% | 3182 fps | 97.7% |
| ADI AR 2213 | <<locked>> | 98% | 54,476 psi | 85% | 3169 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 57,711 psi | 90% | 3251 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 56,855 psi | 89% | 3179 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,956 psi | 88% | 3094 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,057 psi | 88% | 3117 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 56,347 psi | 88% | 3202 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,114 psi | 85% | 3169 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 56,144 psi | 88% | 3169 fps | 97.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 57,319 psi | 90% | 3232 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,418 psi | 85% | 3166 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,587 psi | 75% | 3087 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,766 psi | 86% | 3255 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,852 psi | 83% | 3153 fps | 97.1% |
| Bofors RP3 | <<locked>> | 84% | 57,421 psi | 90% | 3117 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 57,319 psi | 90% | 3232 fps | 98.1% |
| Bofors RP7 | <<locked>> | 88% | 56,231 psi | 88% | 3091 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 84% | 57,246 psi | 90% | 3127 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 54,505 psi | 85% | 3136 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 88% | 57,377 psi | 90% | 3150 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 98% | 57,058 psi | 89% | 3153 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 57,029 psi | 89% | 3123 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,644 psi | 73% | 3117 fps | 96.3% |
| Hodgdon Superformance | <<locked>> | 88% | 54,404 psi | 85% | 3169 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,782 psi | 58% | 1975 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,580 psi | 90% | 3100 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 56,681 psi | 89% | 3077 fps | 98.9% |
| IMR 4350 | <<locked>> | 92% | 56,855 psi | 89% | 3117 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 57,246 psi | 90% | 3114 fps | 98.9% |
| IMR 4831 | <<locked>> | 92% | 56,768 psi | 89% | 3140 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 57,508 psi | 90% | 3146 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 56,101 psi | 88% | 3104 fps | 95.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,535 psi | 87% | 3202 fps | 96.3% |
| Lovex S062 | <<locked>> | 82% | 55,013 psi | 86% | 3048 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,723 psi | 86% | 3064 fps | 99.4% |
| Lovex S070 | <<locked>> | 90% | 56,101 psi | 88% | 3107 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,153 psi | 77% | 2999 fps | 98.6% |
| Norma 203B | <<locked>> | 82% | 55,448 psi | 87% | 3100 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,172 psi | 85% | 3114 fps | 97.1% |
| Norma MRP | <<locked>> | 98% | 57,174 psi | 90% | 3264 fps | 99.1% |
| Norma URP | <<locked>> | 90% | 54,694 psi | 86% | 3130 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 82% | 56,043 psi | 88% | 3123 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 56,217 psi | 88% | 3222 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 92% | 57,000 psi | 89% | 3182 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,807 psi | 80% | 3091 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,507 psi | 59% | 2018 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,913 psi | 89% | 3104 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 57,217 psi | 90% | 3222 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 56,057 psi | 88% | 3169 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,128 psi | 85% | 3189 fps | 99.8% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,847 psi | 73% | 3110 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 82% | 56,971 psi | 89% | 3061 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 57,464 psi | 90% | 3114 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,853 psi | 86% | 3091 fps | 96.2% |
| Rottweil R 905 | <<locked>> | 96% | 55,521 psi | 87% | 3156 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 88% | 56,231 psi | 88% | 3091 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,723 psi | 86% | 3064 fps | 99.4% |
| Shooters World Precision | <<locked>> | 82% | 55,013 psi | 86% | 3048 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,101 psi | 88% | 3107 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,868 psi | 86% | 3114 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 57,464 psi | 90% | 2982 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,172 psi | 85% | 3005 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,042 psi | 86% | 3153 fps | 97.6% |
| Somchem S355 | <<locked>> | 86% | 56,942 psi | 89% | 3104 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 56,826 psi | 89% | 3084 fps | 95.8% |
| Somchem S365 | <<locked>> | 92% | 54,201 psi | 85% | 3133 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 56,463 psi | 88% | 3133 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 82% | 57,276 psi | 90% | 3018 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 57,174 psi | 90% | 3028 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 54,752 psi | 86% | 3022 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,594 psi | 89% | 3120 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,651 psi | 87% | 3104 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 82% | 55,593 psi | 87% | 3025 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 56,028 psi | 88% | 3127 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 57,508 psi | 90% | 3202 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 57,276 psi | 90% | 3248 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 56,115 psi | 88% | 3081 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,505 psi | 85% | 3136 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,777 psi | 78% | 3238 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 56,246 psi | 88% | 3120 fps | 97.6% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 80% | 52,112 psi | 82% | 2979 fps | 97.6% |
| Accurate 3100 | <<locked>> | 86% | 37,550 psi | 59% | 2759 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 53,200 psi | 83% | 3002 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,046 psi | 64% | 2864 fps | 98.3% |
| Accurate High Country | <<locked>> | 94% | 51,706 psi | 81% | 3169 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 48,689 psi | 76% | 2956 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 46,847 psi | 73% | 2995 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 96% | 50,966 psi | 80% | 3100 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,809 psi | 84% | 3186 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 47,079 psi | 74% | 2999 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,574 psi | 78% | 2986 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,837 psi | 83% | 3061 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,986 psi | 61% | 2858 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,251 psi | 69% | 2992 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 46,557 psi | 73% | 2989 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 92% | 44,498 psi | 70% | 2989 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,646 psi | 46% | 2612 fps | 96.3% |
| Alliant Reloder-25 | <<locked>> | 90% | 35,215 psi | 55% | 2782 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 82% | 33,794 psi | 53% | 2789 fps | 95.6% |
| Bofors RP15 | <<locked>> | 96% | 46,688 psi | 73% | 3035 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 50,589 psi | 79% | 3009 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 44,498 psi | 70% | 2989 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 44,251 psi | 69% | 2864 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 50,531 psi | 79% | 3012 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 42,192 psi | 66% | 2894 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 44,846 psi | 70% | 2913 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,359 psi | 84% | 3091 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,869 psi | 58% | 2749 fps | 98.8% |
| Hodgdon Retumbo | <<locked>> | 98% | 43,888 psi | 69% | 3048 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 41,234 psi | 65% | 2900 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,601 psi | 43% | 1768 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,198 psi | 80% | 2995 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,200 psi | 83% | 3018 fps | 98.4% |
| IMR 4350 | <<locked>> | 82% | 42,076 psi | 66% | 2838 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,179 psi | 71% | 2887 fps | 96.7% |
| IMR 4831 | <<locked>> | 80% | 39,160 psi | 61% | 2805 fps | 97.9% |
| IMR 4895 | <<locked>> | 80% | 54,143 psi | 85% | 3091 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,837 psi | 83% | 3048 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 98% | 52,185 psi | 82% | 3140 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 51,837 psi | 81% | 2995 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,381 psi | 68% | 2848 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 41,669 psi | 65% | 2828 fps | 96.1% |
| Lovex S071 | <<locked>> | 90% | 36,390 psi | 57% | 2730 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 52,228 psi | 82% | 3048 fps | 100% |
| Norma 204 | <<locked>> | 86% | 47,529 psi | 74% | 2989 fps | 95.5% |
| Norma MRP | <<locked>> | 88% | 41,060 psi | 64% | 2943 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 40,147 psi | 63% | 2848 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 52,446 psi | 82% | 3064 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,417 psi | 82% | 3153 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 38,870 psi | 61% | 2825 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 96% | 44,063 psi | 69% | 2956 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,297 psi | 44% | 1811 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,212 psi | 79% | 2989 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,789 psi | 73% | 3051 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,393 psi | 63% | 2871 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,841 psi | 61% | 2867 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 40,973 psi | 64% | 2966 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 53,679 psi | 84% | 3009 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 47,790 psi | 75% | 2953 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 51,576 psi | 81% | 3035 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 46,006 psi | 72% | 2979 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 44,251 psi | 69% | 2864 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,381 psi | 68% | 2848 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 51,837 psi | 81% | 2995 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,669 psi | 65% | 2828 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,269 psi | 76% | 2995 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,993 psi | 75% | 2841 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,409 psi | 66% | 2782 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 45,629 psi | 72% | 2972 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 47,776 psi | 75% | 2946 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,171 psi | 83% | 3018 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 36,738 psi | 58% | 2805 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 41,394 psi | 65% | 2848 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 53,809 psi | 84% | 2969 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 53,809 psi | 84% | 2979 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 45,571 psi | 71% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,437 psi | 65% | 2841 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 43,091 psi | 68% | 2871 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 52,199 psi | 82% | 2972 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,089 psi | 64% | 2844 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 32,808 psi | 51% | 2697 fps | 96.4% |
| Vihtavuori N560 | <<locked>> | 96% | 53,592 psi | 84% | 3182 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,393 psi | 63% | 2802 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 42,395 psi | 66% | 2900 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 82% | 28,253 psi | 44% | 2651 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 92% | 46,166 psi | 72% | 2940 fps | 95.3% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 86 powders for 7.62 UKM loaded with the .308 | 150gr | Barnes X S. Norma MRP delivers the highest muzzle velocity at 3,264 fps; across all powders the maximum-charge window runs from 1,975 fps to 3,264 fps. Alliant Reloder-22 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-22, Alliant Reloder-23, Alliant Reloder-25 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.