Load data for 7.62 UKM + .308 | 140gr | Lehigh Defense Controlled Chaos

7.62 UKM cartridge drawing
Lehigh Defense logo

Load Specifications

Bullet Manufacturer:Lehigh Defense
Bullet Weight:140 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
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:1:14.5

Load data in caliber 7.62 UKM with .308 | 140gr | Lehigh Defense Controlled Chaos bullet and 92 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 Alliant Reloder-26.

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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>84%57,043 psi89%3130 fps100%
Accurate 2700<<locked>>84%54,897 psi86%3136 fps97.6%
Accurate 3100ᴾ<<locked>>100%52,649 psi83%3166 fps98.7%
Accurate 4064<<locked>>86%57,508 psi90%3189 fps100%
Accurate 4350<<locked>>92%54,592 psi86%3232 fps99.8%
ADI AR 2206H<<locked>>82%56,376 psi88%3222 fps100%
ADI AR 2208<<locked>>88%57,508 psi90%3222 fps100%
ADI AR 2209<<locked>>98%55,883 psi88%3271 fps97%
Alliant Power Pro 2000-MR<<locked>>84%57,014 psi89%3356 fps100%
Alliant Reloder- TS 15.5<<locked>>86%54,911 psi86%3192 fps100%
Alliant Reloder-15<<locked>>84%55,143 psi86%3215 fps99.9%
Alliant Reloder-16<<locked>>94%55,434 psi87%3297 fps100%
Alliant Reloder-17<<locked>>90%57,000 psi89%3330 fps100%
Alliant Reloder-19<<locked>>98%55,216 psi87%3258 fps97%
Alliant Reloder-22ᴾ<<locked>>100%52,344 psi82%3251 fps96.6%
Alliant Reloder-23ᴾ<<locked>>100%49,327 psi77%3189 fps100%
Alliant Reloder-25ᴾ<<locked>>100%43,149 psi68%3084 fps97.6%
Alliant Reloder-26ᴾ<<locked>>100%57,246 psi90%3402 fps100%
Baschieri & Pellagri 107<<locked>>82%56,521 psi89%3232 fps99.9%
Bofors RP3<<locked>>86%55,724 psi87%3205 fps100%
Bofors RP5ᴾ<<locked>>100%52,344 psi82%3251 fps96.6%
Bofors RP7<<locked>>90%55,274 psi87%3182 fps97.9%
Hodgdon H380<<locked>>86%56,231 psi88%3222 fps99.7%
Hodgdon H414<<locked>>92%57,145 psi90%3291 fps98.7%
Hodgdon H4350<<locked>>90%56,724 psi89%3245 fps97.5%
Hodgdon H4895<<locked>>82%57,000 psi89%3228 fps100%
Hodgdon Hybrid 100V<<locked>>96%55,796 psi87%3215 fps100%
Hodgdon LEVERevolution<<locked>>84%57,464 psi90%3264 fps100%
Hodgdon Superformance<<locked>>92%57,725 psi90%3327 fps98.6%
Hodgdon TrailBossᴾ<<locked>>100%36,100 psi57%2044 fps100%
Hodgdon VARGET<<locked>>82%54,549 psi85%3176 fps100%
IMR 3031<<locked>>82%57,638 psi90%3209 fps100%
IMR 4064<<locked>>86%56,971 psi89%3205 fps100%
IMR 4166 Enduron<<locked>>84%56,405 psi88%3182 fps98.5%
IMR 4350<<locked>>94%56,217 psi88%3215 fps98.1%
IMR 4451 Enduron<<locked>>90%56,942 psi89%3215 fps98.5%
IMR 4831<<locked>>94%55,114 psi86%3225 fps99.8%
IMR 4895<<locked>>84%56,608 psi89%3248 fps100%
Lovex D073.6<<locked>>82%56,927 psi89%3189 fps100%
Lovex S060<<locked>>82%55,085 psi86%3136 fps100%
Lovex S062<<locked>>86%57,232 psi90%3199 fps100%
Lovex S065<<locked>>92%57,000 psi89%3212 fps99.4%
Lovex S070<<locked>>92%54,766 psi86%3192 fps98.5%
Lovex S071ᴾ<<locked>>100%43,627 psi68%2995 fps96.9%
Norma 201<<locked>>82%55,042 psi86%3156 fps100%
Norma 202<<locked>>82%55,767 psi87%3159 fps100%
Norma 203B<<locked>>84%54,433 psi85%3199 fps100%
Norma 204<<locked>>94%57,261 psi90%3271 fps97.2%
Norma MRPᴾ<<locked>>100%55,927 psi88%3346 fps98.6%
Norma URP<<locked>>94%57,116 psi90%3278 fps99.9%
Ramshot Big Game<<locked>>84%55,172 psi86%3222 fps100%
Ramshot Hunter<<locked>>94%56,014 psi88%3274 fps99.1%
ReloadSwiss RS 14ᴾ<<locked>>100%36,811 psi58%2093 fps100%
ReloadSwiss RS 50<<locked>>86%56,144 psi88%3202 fps98.9%
ReloadSwiss RS 52<<locked>>82%55,956 psi88%3287 fps100%
ReloadSwiss RS 60<<locked>>88%56,318 psi88%3323 fps100%
ReloadSwiss RS 62<<locked>>92%54,607 psi86%3255 fps99.7%
ReloadSwiss RS 70<<locked>>94%57,101 psi89%3346 fps99.8%
Rottweil R 902<<locked>>84%55,651 psi87%3156 fps100%
Rottweil R 903<<locked>>88%55,782 psi87%3202 fps100%
Rottweil R 904<<locked>>98%57,624 psi90%3241 fps96.2%
Rottweil R 905<<locked>>98%54,215 psi85%3238 fps97%
Rottweil R 907<<locked>>90%55,274 psi87%3182 fps97.9%
Shooters World Long Rifle<<locked>>92%57,000 psi89%3212 fps99.4%
Shooters World Match Rifle<<locked>>82%56,927 psi89%3189 fps100%
Shooters World Precision<<locked>>86%57,232 psi90%3199 fps100%
Shooters World SW4350<<locked>>92%54,766 psi86%3192 fps98.5%
SNPE Vectan SP 11<<locked>>88%57,522 psi90%3264 fps100%
SNPE Vectan SP 9<<locked>>82%54,810 psi86%3182 fps100%
SNPE Vectan Tubal 3000<<locked>>82%55,898 psi88%3091 fps100%
SNPE Vectan Tubal 5000<<locked>>88%56,797 psi89%3087 fps100%
SNPE Vectan Tubal 7000<<locked>>92%56,840 psi89%3156 fps98.6%
SNPE Vectan Tubal 8000ᴾ<<locked>>100%57,624 psi90%3301 fps97.6%
Somchem S335<<locked>>82%55,579 psi87%3084 fps100%
Somchem S341<<locked>>82%57,479 psi90%3205 fps100%
Somchem S355<<locked>>88%55,709 psi87%3199 fps100%
Somchem S365<<locked>>96%56,449 psi88%3284 fps100%
Somchem S385<<locked>>98%54,998 psi86%3215 fps97.9%
Vihtavuori N133<<locked>>82%56,391 psi88%3071 fps100%
Vihtavuori N135<<locked>>84%56,057 psi88%3120 fps100%
Vihtavuori N140<<locked>>84%56,405 psi88%3133 fps100%
Vihtavuori N150<<locked>>90%57,290 psi90%3173 fps100%
Vihtavuori N160<<locked>>92%55,492 psi87%3212 fps99.8%
Vihtavuori N165ᴾ<<locked>>100%50,749 psi80%3120 fps96.6%
Vihtavuori N540<<locked>>84%54,679 psi86%3123 fps100%
Vihtavuori N550<<locked>>92%54,781 psi86%3219 fps99.7%
Vihtavuori N555ᴾ<<locked>>100%55,303 psi87%3274 fps100%
Winchester 6.5 StaBALL<<locked>>92%55,550 psi87%3179 fps100%
Winchester 760<<locked>>92%57,145 psi90%3291 fps98.7%
Winchester StaBALL HDᴾ<<locked>>100%44,802 psi70%3238 fps100%
Winchester StaBALL Match<<locked>>82%55,013 psi86%3192 fps100%
Winchester Supreme 780ᴾ<<locked>>100%55,347 psi87%3209 fps96.9%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%50,169 psi79%3028 fps100%
Accurate 2700<<locked>>80%48,051 psi75%3009 fps96.1%
Accurate 3100<<locked>>92%39,827 psi62%2913 fps95.8%
Accurate 4064<<locked>>80%47,471 psi74%3028 fps100%
Accurate 4350<<locked>>80%35,897 psi56%2844 fps96.2%
ADI AR 2206H<<locked>>80%52,823 psi83%3156 fps100%
ADI AR 2208<<locked>>80%44,947 psi70%2989 fps99%
ADI AR 2209<<locked>>94%48,965 psi77%3140 fps95.4%
Alliant Power Pro 2000-MR<<locked>>80%49,501 psi78%3219 fps99.6%
Alliant Reloder- TS 15.5<<locked>>80%45,208 psi71%3018 fps99.8%
Alliant Reloder-15<<locked>>80%48,370 psi76%3091 fps99.5%
Alliant Reloder-1665.1 gr80%35,215 psi55%2858 fps96.2%
Alliant Reloder-17<<locked>>80%39,900 psi63%2999 fps99.1%
Alliant Reloder-19<<locked>>94%48,341 psi76%3127 fps95.4%
Alliant Reloder-22<<locked>>98%48,820 psi77%3179 fps95.7%
Alliant Reloder-23<<locked>>84%29,240 psi46%2690 fps95.1%
Alliant Reloder-25<<locked>>96%37,927 psi59%2953 fps95.7%
Alliant Reloder-2679 gr88%36,535 psi57%2963 fps96%
Baschieri & Pellagri 107<<locked>>80%52,750 psi83%3166 fps99.7%
Bofors RP3<<locked>>80%45,469 psi71%3028 fps99.8%
Bofors RP5<<locked>>98%48,820 psi77%3179 fps95.7%
Bofors RP7<<locked>>84%45,730 psi72%2999 fps95.8%
Hodgdon H380<<locked>>80%46,035 psi72%3035 fps98.4%
Hodgdon H414<<locked>>84%43,569 psi68%3028 fps95.8%
Hodgdon H4350<<locked>>84%46,644 psi73%3054 fps95.2%
Hodgdon H4895<<locked>>80%53,388 psi84%3169 fps100%
Hodgdon Hybrid 100V<<locked>>80%32,605 psi51%2743 fps96.9%
Hodgdon LEVERevolution<<locked>>80%50,125 psi79%3143 fps100%
Hodgdon Superformance<<locked>>84%42,902 psi67%3038 fps95.1%
Hodgdon TrailBoss<<locked>>80%26,948 psi42%1831 fps100%
Hodgdon VARGET<<locked>>80%51,068 psi80%3114 fps100%
IMR 3031<<locked>>80%54,027 psi85%3156 fps100%
IMR 4064<<locked>>80%47,253 psi74%3031 fps99.4%
IMR 4166 Enduron<<locked>>80%49,588 psi78%3058 fps97.3%
IMR 4350<<locked>>86%43,511 psi68%2969 fps95.1%
IMR 4451 Enduron<<locked>>80%41,553 psi65%2910 fps95%
IMR 4831<<locked>>80%34,635 psi54%2795 fps95.8%
IMR 4895<<locked>>80%49,603 psi78%3127 fps99.8%
Lovex D073.6<<locked>>80%53,272 psi83%3136 fps100%
Lovex S060<<locked>>80%51,837 psi81%3081 fps99.9%
Lovex S062<<locked>>80%47,398 psi74%3031 fps100%
Lovex S065<<locked>>80%39,175 psi61%2858 fps95.9%
Lovex S070<<locked>>84%42,482 psi67%2949 fps95.7%
Lovex S071<<locked>>96%38,189 psi60%2874 fps95.2%
Norma 201<<locked>>80%51,735 psi81%3104 fps100%
Norma 202<<locked>>80%52,243 psi82%3100 fps100%
Norma 203B<<locked>>80%47,747 psi75%3077 fps99.7%
Norma 204<<locked>>90%49,763 psi78%3133 fps95.5%
Norma MRP<<locked>>92%42,076 psi66%3068 fps95.1%
Norma URP<<locked>>80%35,839 psi56%2841 fps96%
Ramshot Big Game<<locked>>80%48,138 psi75%3097 fps99.7%
Ramshot Hunter<<locked>>84%39,958 psi63%2953 fps95.6%
ReloadSwiss RS 14<<locked>>80%27,499 psi43%1877 fps100%
ReloadSwiss RS 50<<locked>>80%46,064 psi72%3012 fps97.1%
ReloadSwiss RS 52<<locked>>80%52,228 psi82%3222 fps99.8%
ReloadSwiss RS 60<<locked>>80%42,380 psi66%3071 fps100%
ReloadSwiss RS 62<<locked>>80%35,650 psi56%2858 fps95.7%
ReloadSwiss RS 7073 gr82%37,492 psi59%2933 fps95.8%
Rottweil R 902<<locked>>80%49,153 psi77%3048 fps100%
Rottweil R 903<<locked>>80%42,859 psi67%2966 fps99.5%
Rottweil R 904<<locked>>96%54,114 psi85%3179 fps95.4%
Rottweil R 905<<locked>>94%47,413 psi74%3110 fps95.3%
Rottweil R 907<<locked>>84%45,730 psi72%2999 fps95.8%
Shooters World Long Rifle<<locked>>80%39,175 psi61%2858 fps95.9%
Shooters World Match Rifle<<locked>>80%53,272 psi83%3136 fps100%
Shooters World Precision<<locked>>80%47,398 psi74%3031 fps100%
Shooters World SW4350<<locked>>84%42,482 psi67%2949 fps95.7%
SNPE Vectan SP 11<<locked>>80%43,990 psi69%3022 fps99.2%
SNPE Vectan SP 9<<locked>>80%51,416 psi81%3123 fps99.9%
SNPE Vectan Tubal 3000<<locked>>80%52,489 psi82%3038 fps100%
SNPE Vectan Tubal 5000<<locked>>80%44,280 psi69%2884 fps100%
SNPE Vectan Tubal 7000<<locked>>82%40,901 psi64%2851 fps95%
SNPE Vectan Tubal 8000<<locked>>94%46,978 psi74%3104 fps95.1%
Somchem S335<<locked>>80%52,315 psi82%3031 fps100%
Somchem S341<<locked>>80%53,679 psi84%3146 fps100%
Somchem S355<<locked>>80%43,265 psi68%2969 fps99.4%
Somchem S365<<locked>>80%32,329 psi51%2792 fps98.2%
Somchem S385<<locked>>92%45,121 psi71%3025 fps95.6%
Vihtavuori N133<<locked>>80%52,982 psi83%3022 fps100%
Vihtavuori N135<<locked>>80%49,313 psi77%3015 fps100%
Vihtavuori N140<<locked>>80%49,632 psi78%3028 fps100%
Vihtavuori N150<<locked>>80%41,263 psi65%2890 fps99.8%
Vihtavuori N160<<locked>>80%37,188 psi58%2844 fps96.5%
Vihtavuori N165<<locked>>98%47,587 psi75%3061 fps95.8%
Vihtavuori N540<<locked>>80%48,051 psi75%3015 fps100%
Vihtavuori N550<<locked>>80%36,825 psi58%2844 fps96.1%
Vihtavuori N555<<locked>>84%32,285 psi51%2782 fps95.4%
Winchester 6.5 StaBALL<<locked>>80%36,593 psi57%2815 fps98.5%
Winchester 760<<locked>>84%43,685 psi68%3031 fps95.8%
Winchester StaBALL HD<<locked>>88%29,631 psi46%2789 fps96.2%
Winchester StaBALL Match<<locked>>80%51,517 psi81%3130 fps100%
Winchester Supreme 780<<locked>>96%48,022 psi75%3074 fps95.2%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 107 powders for 7.62 UKM loaded with the .308 | 140gr | Lehigh Defense Controlled Chaos. Alliant Reloder-26 delivers the highest muzzle velocity at 3,402 fps; across all powders the maximum-charge window runs from 2,044 fps to 3,402 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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, Alliant Reloder-26 rank at the top here: for 7.62 UKM with the .308 | 140gr | Lehigh Defense Controlled Chaos they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, Hodgdon H1000, Hodgdon Retumbo 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.

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