Load Specifications
Load data in caliber 7.62 UKM with .308 | 138gr | Hammer HHT bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Hodgdon Superformance.
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 2015 | <<locked>> | 82% | 57,450 psi | 90% | 3133 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 56,884 psi | 89% | 3156 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,738 psi | 87% | 3166 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,602 psi | 76% | 3114 fps | 97.8% |
| Accurate 4064 | <<locked>> | 88% | 57,217 psi | 90% | 3212 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,433 psi | 85% | 3251 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 84% | 56,971 psi | 89% | 3248 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,868 psi | 86% | 3196 fps | 99.8% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,347 psi | 88% | 3294 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,724 psi | 87% | 3192 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,203 psi | 90% | 3163 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,838 psi | 84% | 3317 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,216 psi | 87% | 3219 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,434 psi | 87% | 3241 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,521 psi | 87% | 3320 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 57,261 psi | 90% | 3356 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,303 psi | 87% | 3274 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,919 psi | 72% | 3146 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,089 psi | 63% | 3025 fps | 96.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,736 psi | 83% | 3346 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 57,305 psi | 90% | 3264 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 55,869 psi | 88% | 3232 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 55,593 psi | 87% | 3205 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,101 psi | 89% | 3173 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,564 psi | 87% | 3219 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,637 psi | 89% | 3248 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 57,276 psi | 90% | 3310 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 92% | 57,217 psi | 90% | 3271 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 84% | 57,580 psi | 90% | 3261 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,825 psi | 87% | 3238 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,056 psi | 85% | 3232 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,070 psi | 85% | 3284 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,723 psi | 56% | 2044 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,303 psi | 87% | 3205 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,288 psi | 85% | 3182 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,172 psi | 85% | 3176 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 57,130 psi | 90% | 3212 fps | 98.4% |
| IMR 4350 | <<locked>> | 96% | 56,536 psi | 89% | 3235 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,537 psi | 90% | 3241 fps | 98.4% |
| IMR 4831 | <<locked>> | 96% | 55,245 psi | 87% | 3248 fps | 99.8% |
| IMR 4895 | <<locked>> | 86% | 56,898 psi | 89% | 3274 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,724 psi | 87% | 3192 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,305 psi | 90% | 3219 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,854 psi | 88% | 3166 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,595 psi | 90% | 3225 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 57,290 psi | 90% | 3232 fps | 99.3% |
| Lovex S070 | <<locked>> | 94% | 54,940 psi | 86% | 3215 fps | 98.2% |
| Norma 201 | <<locked>> | 84% | 55,419 psi | 87% | 3186 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,304 psi | 88% | 3189 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,665 psi | 86% | 3222 fps | 100% |
| Norma 204 | <<locked>> | 96% | 57,682 psi | 90% | 3294 fps | 96.9% |
| Norma MRPᴾ | <<locked>> | 100% | 51,953 psi | 81% | 3294 fps | 97.6% |
| Norma URP | <<locked>> | 96% | 57,188 psi | 90% | 3301 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 86% | 55,796 psi | 87% | 3251 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 56,144 psi | 88% | 3294 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 56,043 psi | 88% | 3212 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,898 psi | 88% | 3228 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,376 psi | 57% | 2093 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,739 psi | 89% | 3228 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,391 psi | 88% | 3314 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,753 psi | 89% | 3353 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,636 psi | 86% | 3274 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 57,667 psi | 90% | 3376 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 82% | 55,927 psi | 88% | 3163 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,043 psi | 88% | 3186 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,912 psi | 88% | 3225 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,331 psi | 85% | 3258 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 92% | 55,593 psi | 87% | 3205 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 57,290 psi | 90% | 3232 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,305 psi | 90% | 3219 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,595 psi | 90% | 3225 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,940 psi | 86% | 3215 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,259 psi | 85% | 3235 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,534 psi | 85% | 3186 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,477 psi | 87% | 3212 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,637 psi | 89% | 3120 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,508 psi | 90% | 3117 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,392 psi | 90% | 3179 fps | 98.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,838 psi | 84% | 3251 fps | 96.5% |
| Somchem S335 | <<locked>> | 84% | 56,130 psi | 88% | 3114 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,505 psi | 85% | 3179 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,014 psi | 88% | 3222 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 56,246 psi | 88% | 3304 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,042 psi | 86% | 3232 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 84% | 57,101 psi | 89% | 3100 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,202 psi | 88% | 3146 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 57,058 psi | 89% | 3163 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,638 psi | 90% | 3199 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,782 psi | 87% | 3235 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 82% | 56,188 psi | 88% | 3192 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 55,317 psi | 87% | 3156 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,984 psi | 86% | 3238 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,097 psi | 80% | 3228 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,144 psi | 88% | 3205 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,826 psi | 89% | 3241 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,493 psi | 90% | 3314 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,321 psi | 65% | 3173 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,622 psi | 87% | 3222 fps | 100% |
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 2015 | <<locked>> | 80% | 53,838 psi | 84% | 3081 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,398 psi | 73% | 2992 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,455 psi | 71% | 2972 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 39,146 psi | 61% | 2913 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 43,932 psi | 69% | 2989 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 35,462 psi | 56% | 2854 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 49,937 psi | 78% | 3127 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 42,395 psi | 66% | 2956 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 96% | 49,081 psi | 77% | 3159 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,112 psi | 82% | 3133 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,447 psi | 84% | 3110 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,485 psi | 73% | 3179 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,525 psi | 67% | 2982 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,484 psi | 71% | 3054 fps | 99% |
| Alliant Reloder-16 | 65 gr | 82% | 35,085 psi | 55% | 2871 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,057 psi | 58% | 2949 fps | 98.2% |
| Alliant Reloder-19 | <<locked>> | 96% | 48,530 psi | 76% | 3150 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,792 psi | 48% | 2762 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 98% | 37,608 psi | 59% | 2959 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 36,143 psi | 57% | 2969 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,864 psi | 78% | 3133 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 42,525 psi | 67% | 2986 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 45,803 psi | 72% | 3018 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,664 psi | 84% | 3120 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,880 psi | 81% | 3159 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,178 psi | 68% | 2995 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 86% | 43,627 psi | 68% | 3051 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 88% | 50,125 psi | 79% | 3143 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 50,502 psi | 79% | 3140 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,211 psi | 47% | 2690 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,036 psi | 74% | 3110 fps | 99.9% |
| Hodgdon Superformance | 79.4 gr | 88% | 46,369 psi | 73% | 3133 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 42% | 1834 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,414 psi | 76% | 3084 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 50,705 psi | 79% | 3130 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,512 psi | 70% | 2995 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,108 psi | 74% | 3025 fps | 96.4% |
| IMR 4350 | <<locked>> | 90% | 46,688 psi | 73% | 3054 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 44,715 psi | 70% | 2999 fps | 95.6% |
| IMR 4831 | <<locked>> | 82% | 34,156 psi | 54% | 2805 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 46,659 psi | 73% | 3087 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 52,112 psi | 82% | 3133 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,806 psi | 78% | 3100 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,443 psi | 77% | 3054 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 44,628 psi | 70% | 2999 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 39,030 psi | 61% | 2874 fps | 95.5% |
| Lovex S070 | <<locked>> | 86% | 42,453 psi | 67% | 2966 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 48,704 psi | 76% | 3068 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,458 psi | 78% | 3074 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,817 psi | 70% | 3041 fps | 99.2% |
| Norma 204 | <<locked>> | 92% | 50,256 psi | 79% | 3159 fps | 95.2% |
| Norma MRP | <<locked>> | 96% | 44,947 psi | 70% | 3150 fps | 95.7% |
| Norma URP | <<locked>> | 82% | 35,520 psi | 56% | 2854 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 45,165 psi | 71% | 3061 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 39,798 psi | 62% | 2966 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 52,243 psi | 82% | 3146 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,243 psi | 82% | 3166 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,035 psi | 42% | 1877 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,439 psi | 68% | 2976 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,023 psi | 77% | 3182 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,479 psi | 62% | 3025 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,404 psi | 55% | 2874 fps | 95.3% |
| ReloadSwiss RS 70 | 72.9 gr | 84% | 37,507 psi | 59% | 2946 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 52,663 psi | 83% | 3114 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,311 psi | 73% | 3015 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 39,755 psi | 62% | 2920 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 98% | 50,734 psi | 80% | 3192 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 86% | 45,803 psi | 72% | 3018 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 39,030 psi | 61% | 2874 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,806 psi | 78% | 3100 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,628 psi | 70% | 2999 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 42,453 psi | 67% | 2966 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,220 psi | 65% | 2982 fps | 98.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,908 psi | 80% | 3120 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,704 psi | 76% | 3094 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,850 psi | 78% | 3015 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,843 psi | 66% | 2858 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,976 psi | 69% | 2936 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 50,270 psi | 79% | 3186 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 49,516 psi | 78% | 3009 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,720 psi | 79% | 3114 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 40,393 psi | 63% | 2927 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 29,704 psi | 47% | 2733 fps | 96.8% |
| Somchem S385 | <<locked>> | 94% | 44,947 psi | 70% | 3041 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 50,372 psi | 79% | 3002 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,325 psi | 73% | 2989 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,804 psi | 73% | 2999 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,551 psi | 60% | 2854 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 34,534 psi | 54% | 2799 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 52,620 psi | 82% | 3133 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,339 psi | 71% | 2986 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 36,535 psi | 57% | 2858 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 88% | 33,852 psi | 53% | 2851 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,229 psi | 54% | 2772 fps | 97.6% |
| Winchester 748 | <<locked>> | 80% | 53,040 psi | 83% | 3186 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 43,627 psi | 68% | 3051 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,167 psi | 46% | 2785 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,501 psi | 76% | 3097 fps | 99.8% |
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 116 powders for 7.62 UKM loaded with the .308 | 138gr | Hammer HHT. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,376 fps; across all powders the maximum-charge window runs from 2,044 fps to 3,376 fps. Accurate 3100 gives the best case fill at 100 %, and 116 of the 116 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 138.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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 Reloder-16, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for 7.62 UKM with the .308 | 138gr | Hammer HHT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 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.