Load Specifications
Bullet:.310 | 123gr | Hornady SST
Bullet Manufacturer:Hornady
Bullet Weight:123 gr
Bullet Diameter:0.31"
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:1:15.5
Load data in caliber 7.62 UKM with .310 | 123gr | Hornady SST bullet and 92 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 2015 | <<locked>> | 82% | 55,332 psi | 87% | 3261 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,868 psi | 86% | 3281 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,246 psi | 88% | 3350 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,087 psi | 89% | 3323 fps | 96.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,166 psi | 72% | 3196 fps | 96.1% |
| Accurate 4064 | <<locked>> | 88% | 54,998 psi | 86% | 3333 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,608 psi | 87% | 3419 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 84% | 54,752 psi | 86% | 3363 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 90% | 56,014 psi | 88% | 3366 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,072 psi | 89% | 3366 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,534 psi | 85% | 3291 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,911 psi | 86% | 3491 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,246 psi | 88% | 3389 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,739 psi | 89% | 3415 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,289 psi | 88% | 3484 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,114 psi | 85% | 3458 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,511 psi | 68% | 3228 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,719 psi | 78% | 3425 fps | 98.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,853 psi | 86% | 3373 fps | 99.2% |
| Bofors RP3 | <<locked>> | 90% | 57,159 psi | 90% | 3406 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,942 psi | 89% | 3366 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,955 psi | 86% | 3294 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,043 psi | 89% | 3396 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,331 psi | 85% | 3356 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 94% | 54,578 psi | 86% | 3409 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 84% | 55,332 psi | 87% | 3376 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,521 psi | 89% | 3399 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,274 psi | 87% | 3409 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,288 psi | 87% | 3442 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,578 psi | 56% | 2156 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,478 psi | 89% | 3376 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 55,317 psi | 87% | 3363 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,434 psi | 87% | 3346 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,955 psi | 86% | 3314 fps | 97% |
| IMR 4350 | <<locked>> | 98% | 57,682 psi | 90% | 3392 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,288 psi | 87% | 3340 fps | 97% |
| IMR 4831 | <<locked>> | 98% | 56,043 psi | 88% | 3406 fps | 99.4% |
| IMR 4895 | <<locked>> | 86% | 54,462 psi | 85% | 3386 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 84% | 57,072 psi | 89% | 3366 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,868 psi | 86% | 3337 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,290 psi | 90% | 3340 fps | 99.9% |
| Lovex S062 | <<locked>> | 88% | 55,303 psi | 87% | 3340 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,013 psi | 86% | 3337 fps | 98.2% |
| Lovex S070 | <<locked>> | 96% | 56,086 psi | 88% | 3373 fps | 97.5% |
| Norma 201 | <<locked>> | 86% | 56,927 psi | 89% | 3363 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,667 psi | 90% | 3366 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,956 psi | 88% | 3399 fps | 99.8% |
| Norma URP | <<locked>> | 96% | 54,288 psi | 85% | 3399 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 88% | 56,898 psi | 89% | 3419 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 98% | 57,145 psi | 90% | 3455 fps | 98.3% |
| Ramshot TAC | <<locked>> | 84% | 57,522 psi | 90% | 3383 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,348 psi | 90% | 3402 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,201 psi | 57% | 2208 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,462 psi | 85% | 3330 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,435 psi | 90% | 3488 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 57,595 psi | 90% | 3527 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,579 psi | 87% | 3435 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,723 psi | 86% | 3465 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 84% | 57,580 psi | 90% | 3346 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,522 psi | 90% | 3363 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,246 psi | 90% | 3399 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 56,942 psi | 89% | 3366 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,013 psi | 86% | 3337 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,868 psi | 86% | 3337 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,303 psi | 87% | 3340 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,086 psi | 88% | 3373 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,390 psi | 87% | 3402 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,130 psi | 88% | 3356 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,739 psi | 89% | 3383 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,563 psi | 86% | 3241 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,259 psi | 87% | 3238 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,085 psi | 86% | 3281 fps | 97.1% |
| Somchem S335 | <<locked>> | 86% | 57,653 psi | 90% | 3291 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,898 psi | 88% | 3346 fps | 99.8% |
| Somchem S355 | <<locked>> | 92% | 57,130 psi | 90% | 3392 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,608 psi | 89% | 3465 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,359 psi | 82% | 3320 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 82% | 57,392 psi | 90% | 3255 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 54,853 psi | 86% | 3225 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,348 psi | 90% | 3320 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,708 psi | 86% | 3284 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,230 psi | 87% | 3314 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,855 psi | 89% | 3399 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 84% | 57,566 psi | 90% | 3366 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,623 psi | 89% | 3330 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,999 psi | 88% | 3399 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,399 psi | 76% | 3323 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,232 psi | 90% | 3369 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,230 psi | 85% | 3356 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,578 psi | 86% | 3409 fps | 97.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,262 psi | 62% | 3235 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,985 psi | 89% | 3396 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 51,938 psi | 81% | 3209 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,831 psi | 70% | 3110 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,562 psi | 82% | 3291 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 50,038 psi | 78% | 3196 fps | 95% |
| Accurate 3100 | <<locked>> | 98% | 42,960 psi | 67% | 3127 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 42,366 psi | 66% | 3100 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 38,972 psi | 61% | 3074 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 48,138 psi | 75% | 3235 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 40,756 psi | 64% | 3051 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,183 psi | 79% | 3248 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 50,995 psi | 80% | 3235 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,295 psi | 69% | 3268 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,741 psi | 64% | 3081 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,787 psi | 69% | 3156 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 38,363 psi | 60% | 3087 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,476 psi | 56% | 3031 fps | 96.4% |
| Alliant Reloder-23 | <<locked>> | 92% | 33,547 psi | 53% | 2963 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 94% | 39,856 psi | 62% | 3192 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,703 psi | 75% | 3235 fps | 98.2% |
| Bofors RP3 | <<locked>> | 80% | 40,727 psi | 64% | 3084 fps | 98.4% |
| Bofors RP7 | <<locked>> | 90% | 50,227 psi | 79% | 3241 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,706 psi | 81% | 3238 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,734 psi | 78% | 3271 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 41,408 psi | 65% | 3087 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 90% | 47,587 psi | 75% | 3268 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 48,602 psi | 76% | 3251 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 33,127 psi | 52% | 2900 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,889 psi | 70% | 3212 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 92% | 51,184 psi | 80% | 3363 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,571 psi | 42% | 1939 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,601 psi | 73% | 3192 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 48,428 psi | 76% | 3248 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,786 psi | 67% | 3097 fps | 97.7% |
| IMR 4166 Enduron | <<locked>> | 82% | 48,414 psi | 76% | 3186 fps | 95.5% |
| IMR 4350 | <<locked>> | 94% | 50,691 psi | 79% | 3268 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 48,718 psi | 76% | 3215 fps | 95.4% |
| IMR 4831 | <<locked>> | 86% | 37,536 psi | 59% | 3022 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 44,846 psi | 70% | 3196 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 50,183 psi | 79% | 3248 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 47,790 psi | 75% | 3212 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,659 psi | 75% | 3163 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 42,946 psi | 67% | 3104 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 42,772 psi | 67% | 3091 fps | 95.4% |
| Lovex S070 | <<locked>> | 90% | 46,296 psi | 73% | 3182 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 46,978 psi | 74% | 3179 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 47,500 psi | 74% | 3192 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,134 psi | 68% | 3143 fps | 98.1% |
| Norma URP | <<locked>> | 86% | 38,972 psi | 61% | 3074 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 43,076 psi | 68% | 3153 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 43,598 psi | 68% | 3186 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 50,256 psi | 79% | 3245 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,067 psi | 78% | 3274 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,890 psi | 42% | 1982 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 44,701 psi | 70% | 3133 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,499 psi | 73% | 3278 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,724 psi | 59% | 3114 fps | 99.2% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 38,769 psi | 61% | 3087 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 41,191 psi | 65% | 3169 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 51,053 psi | 80% | 3238 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,730 psi | 70% | 3123 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 38,348 psi | 60% | 3018 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 90% | 50,227 psi | 79% | 3241 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 42,772 psi | 67% | 3091 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,790 psi | 75% | 3212 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,946 psi | 67% | 3104 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 90% | 46,296 psi | 73% | 3182 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,305 psi | 62% | 3071 fps | 97% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,892 psi | 77% | 3222 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,601 psi | 73% | 3192 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,138 psi | 75% | 3133 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,292 psi | 63% | 2969 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 48,298 psi | 76% | 3153 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 47,805 psi | 75% | 3127 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,573 psi | 76% | 3215 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 38,841 psi | 61% | 3025 fps | 97.5% |
| Somchem S365 | <<locked>> | 82% | 30,530 psi | 48% | 2877 fps | 95.8% |
| Somchem S385 | <<locked>> | 98% | 48,878 psi | 77% | 3255 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 54,114 psi | 85% | 3205 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,515 psi | 76% | 3123 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,454 psi | 70% | 3107 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,092 psi | 71% | 3114 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,144 psi | 58% | 2953 fps | 98.3% |
| Vihtavuori N160 | <<locked>> | 84% | 37,985 psi | 60% | 3015 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 50,459 psi | 79% | 3245 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 43,511 psi | 68% | 3094 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 40,176 psi | 63% | 3077 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 92% | 36,825 psi | 58% | 3058 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,938 psi | 52% | 2851 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 50,720 psi | 79% | 3297 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 47,776 psi | 75% | 3274 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 94% | 32,039 psi | 50% | 2992 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,485 psi | 73% | 3202 fps | 99.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 92 powders for 7.62 UKM loaded with the .310 | 123gr | Hornady SST. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,527 fps; across all powders the maximum-charge window runs from 2,156 fps to 3,527 fps. Accurate 3100 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 (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 123.0 gr projectile in 0.31" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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.