Load data for .240 Weath. Mag. + .243 | 85gr | Lehigh Defense Controlled Chaos

.240 Weath. Mag. cartridge drawing
Lehigh Defense logo

Load Specifications

Bullet Manufacturer:Lehigh Defense
Bullet Weight:85 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Case Length (l3):2.5"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:64 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:8.5

Load data in caliber .240 Weath. Mag. with .243 | 85gr | Lehigh Defense Controlled Chaos bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-16 and ReloadSwiss RS 70.

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%56,231 psi88%3182 fps100%
Accurate 2700<<locked>>84%54,128 psi85%3179 fps97.2%
Accurate 3100ᴾ<<locked>>100%51,924 psi81%3212 fps98.4%
Accurate 4064<<locked>>86%56,768 psi89%3241 fps100%
Accurate 4350<<locked>>94%57,740 psi90%3346 fps99.9%
ADI AR 2206H<<locked>>82%55,840 psi88%3271 fps100%
ADI AR 2208<<locked>>88%57,087 psi89%3274 fps99.9%
ADI AR 2209<<locked>>98%54,984 psi86%3317 fps96.6%
Alliant Power Pro 2000-MR<<locked>>84%56,289 psi88%3406 fps100%
Alliant Reloder- TS 15.5<<locked>>86%54,070 psi85%3238 fps100%
Alliant Reloder-15<<locked>>84%54,389 psi85%3261 fps99.9%
Alliant Reloder-16<<locked>>94%54,607 psi86%3346 fps99.9%
Alliant Reloder-17<<locked>>90%55,970 psi88%3376 fps100%
Alliant Reloder-19<<locked>>98%54,288 psi85%3301 fps96.5%
Alliant Reloder-22ᴾ<<locked>>100%51,387 psi81%3287 fps96%
Alliant Reloder-23ᴾ<<locked>>100%48,457 psi76%3232 fps99.9%
Alliant Reloder-25ᴾ<<locked>>100%42,482 psi67%3123 fps97.1%
Alliant Reloder-26ᴾ<<locked>>100%56,057 psi88%3445 fps99.9%
Baschieri & Pellagri 107<<locked>>82%55,956 psi88%3284 fps99.8%
Bofors RP3<<locked>>86%55,129 psi86%3258 fps100%
Bofors RP5ᴾ<<locked>>100%51,387 psi81%3287 fps96%
Bofors RP7<<locked>>90%54,549 psi85%3228 fps97.5%
Hodgdon H380<<locked>>86%55,680 psi87%3274 fps99.5%
Hodgdon H414<<locked>>92%56,188 psi88%3337 fps98.4%
Hodgdon H4350<<locked>>90%55,970 psi88%3291 fps97.1%
Hodgdon H4895<<locked>>82%56,507 psi89%3281 fps100%
Hodgdon Hybrid 100V<<locked>>96%54,911 psi86%3264 fps100%
Hodgdon LEVERevolution<<locked>>84%56,710 psi89%3320 fps100%
Hodgdon Superformance<<locked>>92%56,710 psi89%3373 fps98.2%
Hodgdon TrailBossᴾ<<locked>>100%36,071 psi57%2083 fps100%
Hodgdon VARGET<<locked>>84%57,551 psi90%3284 fps100%
IMR 3031<<locked>>82%56,884 psi89%3261 fps100%
IMR 4064<<locked>>86%56,231 psi88%3251 fps100%
IMR 4166 Enduron<<locked>>84%55,521 psi87%3225 fps98.2%
IMR 4350<<locked>>94%55,405 psi87%3258 fps97.7%
IMR 4451 Enduron<<locked>>90%56,173 psi88%3261 fps98.2%
IMR 4831<<locked>>94%54,462 psi85%3274 fps99.7%
IMR 4895<<locked>>84%55,767 psi87%3294 fps100%
Lovex D073.6<<locked>>82%56,246 psi88%3241 fps100%
Lovex S060<<locked>>82%54,621 psi86%3189 fps100%
Lovex S062<<locked>>86%56,420 psi88%3248 fps100%
Lovex S065<<locked>>92%56,304 psi88%3258 fps99.2%
Lovex S070<<locked>>92%54,027 psi85%3238 fps98.1%
Lovex S071ᴾ<<locked>>100%42,859 psi67%3031 fps96.4%
Norma 201<<locked>>82%54,389 psi85%3209 fps100%
Norma 202<<locked>>82%54,940 psi86%3205 fps100%
Norma 203B<<locked>>86%57,363 psi90%3310 fps100%
Norma 204<<locked>>94%56,318 psi88%3310 fps96.7%
Norma MRPᴾ<<locked>>100%54,969 psi86%3392 fps98.2%
Norma URP<<locked>>94%56,391 psi88%3327 fps99.8%
Ramshot Big Game<<locked>>84%54,447 psi85%3271 fps100%
Ramshot Hunter<<locked>>94%55,100 psi86%3317 fps98.8%
ReloadSwiss RS 14ᴾ<<locked>>100%36,825 psi58%2136 fps100%
ReloadSwiss RS 50<<locked>>86%55,506 psi87%3248 fps98.6%
ReloadSwiss RS 52<<locked>>82%55,347 psi87%3340 fps99.9%
ReloadSwiss RS 60<<locked>>88%55,448 psi87%3373 fps100%
ReloadSwiss RS 62<<locked>>92%53,882 psi84%3301 fps99.5%
ReloadSwiss RS 70<<locked>>94%56,159 psi88%3392 fps99.7%
Rottweil R 902<<locked>>84%55,013 psi86%3209 fps100%
Rottweil R 903<<locked>>88%54,998 psi86%3251 fps100%
Rottweil R 905ᴾ<<locked>>100%57,348 psi90%3353 fps97.3%
Rottweil R 907<<locked>>90%54,549 psi85%3228 fps97.5%
Shooters World Long Rifle<<locked>>92%56,304 psi88%3258 fps99.2%
Shooters World Match Rifle<<locked>>82%56,246 psi88%3241 fps100%
Shooters World Precision<<locked>>86%56,420 psi88%3248 fps100%
Shooters World SW4350<<locked>>92%54,027 psi85%3238 fps98.1%
SNPE Vectan SP 11<<locked>>88%56,608 psi89%3314 fps100%
SNPE Vectan SP 3<<locked>>82%55,709 psi87%3123 fps100%
SNPE Vectan SP 7<<locked>>82%57,130 psi90%3268 fps99.6%
SNPE Vectan SP 9<<locked>>82%54,360 psi85%3235 fps100%
SNPE Vectan Tubal 3000<<locked>>82%55,259 psi87%3140 fps100%
SNPE Vectan Tubal 5000<<locked>>88%56,217 psi88%3140 fps100%
SNPE Vectan Tubal 7000<<locked>>92%56,014 psi88%3199 fps98.3%
SNPE Vectan Tubal 8000ᴾ<<locked>>100%56,840 psi89%3346 fps97.2%
Somchem S335<<locked>>82%54,940 psi86%3133 fps100%
Somchem S341<<locked>>82%56,985 psi89%3258 fps100%
Somchem S355<<locked>>88%55,013 psi86%3248 fps100%
Somchem S365<<locked>>96%55,463 psi87%3330 fps100%
Somchem S385<<locked>>98%54,346 psi85%3261 fps97.5%
Vihtavuori N133<<locked>>82%55,709 psi87%3123 fps100%
Vihtavuori N135<<locked>>84%55,288 psi87%3173 fps100%
Vihtavuori N140<<locked>>84%55,637 psi87%3182 fps100%
Vihtavuori N150<<locked>>90%56,594 psi89%3222 fps100%
Vihtavuori N160<<locked>>92%54,694 psi86%3261 fps99.6%
Vihtavuori N165ᴾ<<locked>>100%50,111 psi79%3166 fps96.2%
Vihtavuori N540<<locked>>84%54,099 psi85%3176 fps100%
Vihtavuori N550<<locked>>92%54,041 psi85%3264 fps99.5%
Vihtavuori N555ᴾ<<locked>>100%54,244 psi85%3320 fps99.9%
Winchester 6.5 StaBALL<<locked>>92%54,578 psi86%3225 fps100%
Winchester 760<<locked>>92%56,521 psi89%3340 fps98.4%
Winchester StaBALL HDᴾ<<locked>>100%43,947 psi69%3278 fps100%
Winchester StaBALL Match<<locked>>82%54,317 psi85%3241 fps100%
Winchester Supreme 780ᴾ<<locked>>100%54,621 psi86%3251 fps96.5%

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%49,530 psi78%3077 fps100%
Accurate 2700<<locked>>80%47,413 psi74%3051 fps95.7%
Accurate 3100<<locked>>92%39,117 psi61%2949 fps95.2%
Accurate 4064<<locked>>80%46,847 psi73%3077 fps100%
Accurate 4350<<locked>>80%35,346 psi55%2884 fps95.6%
ADI AR 2206H<<locked>>80%52,257 psi82%3209 fps99.9%
ADI AR 2208<<locked>>80%44,469 psi70%3038 fps98.7%
ADI AR 2209<<locked>>96%51,619 psi81%3251 fps95.7%
Alliant Power Pro 2000-MR<<locked>>80%48,892 psi77%3264 fps99.4%
Alliant Reloder- TS 15.5<<locked>>80%44,701 psi70%3061 fps99.6%
Alliant Reloder-15<<locked>>80%47,819 psi75%3140 fps99.3%
Alliant Reloder-1641.2 gr80%34,722 psi54%2894 fps95.6%
Alliant Reloder-17<<locked>>80%39,363 psi62%3041 fps98.8%
Alliant Reloder-19<<locked>>96%51,039 psi80%3238 fps95.8%
Alliant Reloder-22<<locked>>98%48,254 psi76%3225 fps95.1%
Alliant Reloder-23<<locked>>86%30,821 psi48%2792 fps95.6%
Alliant Reloder-25<<locked>>98%39,711 psi62%3054 fps96%
Alliant Reloder-26<<locked>>88%35,882 psi56%2992 fps95.3%
Baschieri & Pellagri 107<<locked>>80%52,112 psi82%3215 fps99.5%
Bofors RP3<<locked>>80%45,049 psi71%3074 fps99.7%
Bofors RP5<<locked>>98%48,254 psi76%3225 fps95.1%
Bofors RP7<<locked>>84%45,121 psi71%3041 fps95.2%
Hodgdon H380<<locked>>80%45,353 psi71%3077 fps98.1%
Hodgdon H414<<locked>>84%42,989 psi67%3071 fps95.3%
Hodgdon H4350<<locked>>86%49,327 psi77%3166 fps95.6%
Hodgdon H4895<<locked>>80%52,837 psi83%3222 fps100%
Hodgdon Hybrid 100V<<locked>>80%32,140 psi50%2779 fps96.4%
Hodgdon LEVERevolution<<locked>>80%49,530 psi78%3192 fps100%
Hodgdon Superformance<<locked>>86%45,426 psi71%3153 fps95.6%
Hodgdon TrailBoss<<locked>>80%27,050 psi42%1870 fps100%
Hodgdon VARGET<<locked>>80%50,647 psi79%3163 fps99.9%
IMR 3031<<locked>>80%53,374 psi84%3209 fps100%
IMR 4064<<locked>>80%46,760 psi73%3081 fps99.2%
IMR 4166 Enduron<<locked>>80%48,965 psi77%3104 fps96.9%
IMR 4350<<locked>>88%45,934 psi72%3077 fps95.6%
IMR 4451 Enduron<<locked>>82%43,700 psi68%3012 fps95.4%
IMR 4831<<locked>>80%34,040 psi53%2831 fps95.2%
IMR 4895<<locked>>80%49,037 psi77%3173 fps99.7%
Lovex D073.6<<locked>>80%52,518 psi82%3182 fps100%
Lovex S060<<locked>>80%51,169 psi80%3127 fps99.8%
Lovex S062<<locked>>80%46,717 psi73%3077 fps99.9%
Lovex S065<<locked>>80%38,696 psi61%2897 fps95.4%
Lovex S070<<locked>>84%41,843 psi66%2989 fps95.1%
Lovex S071<<locked>>98%40,161 psi63%2972 fps95.5%
Norma 201<<locked>>80%51,155 psi80%3150 fps100%
Norma 202<<locked>>80%51,663 psi81%3153 fps100%
Norma 203B<<locked>>80%47,166 psi74%3123 fps99.5%
Norma 204<<locked>>92%52,562 psi82%3245 fps95.9%
Norma MRP<<locked>>94%44,469 psi70%3179 fps95.6%
Norma URP<<locked>>80%35,230 psi55%2881 fps95.4%
Ramshot Big Game<<locked>>80%47,558 psi75%3146 fps99.5%
Ramshot Hunter<<locked>>84%39,392 psi62%2992 fps95.1%
ReloadSwiss RS 14<<locked>>80%27,311 psi43%1909 fps100%
ReloadSwiss RS 50<<locked>>80%45,527 psi71%3058 fps96.7%
ReloadSwiss RS 52<<locked>>80%51,605 psi81%3271 fps99.7%
ReloadSwiss RS 6044.4 gr80%41,858 psi66%3114 fps100%
ReloadSwiss RS 62<<locked>>80%35,085 psi55%2894 fps95.1%
ReloadSwiss RS 7046.2 gr82%36,956 psi58%2966 fps95.2%
Rottweil R 902<<locked>>80%48,718 psi76%3097 fps100%
Rottweil R 903<<locked>>80%42,134 psi66%3005 fps99.2%
Rottweil R 905<<locked>>96%50,067 psi78%3219 fps95.7%
Rottweil R 907<<locked>>84%45,121 psi71%3041 fps95.2%
Shooters World Long Rifle<<locked>>80%38,696 psi61%2897 fps95.4%
Shooters World Match Rifle<<locked>>80%52,518 psi82%3182 fps100%
Shooters World Precision<<locked>>80%46,717 psi73%3077 fps99.9%
Shooters World SW4350<<locked>>84%41,843 psi66%2989 fps95.1%
SNPE Vectan SP 11<<locked>>80%43,453 psi68%3064 fps99%
SNPE Vectan SP 3<<locked>>80%52,402 psi82%3071 fps100%
SNPE Vectan SP 7<<locked>>80%53,403 psi84%3205 fps99.2%
SNPE Vectan SP 9<<locked>>80%50,865 psi80%3173 fps99.8%
SNPE Vectan Tubal 3000<<locked>>80%51,909 psi81%3087 fps100%
SNPE Vectan Tubal 5000<<locked>>80%43,758 psi69%2933 fps100%
SNPE Vectan Tubal 7000<<locked>>84%43,192 psi68%2956 fps95.5%
SNPE Vectan Tubal 8000<<locked>>96%49,603 psi78%3212 fps95.5%
Somchem S335<<locked>>80%51,779 psi81%3084 fps100%
Somchem S341<<locked>>80%52,968 psi83%3192 fps99.9%
Somchem S355<<locked>>80%42,728 psi67%3012 fps99.2%
Somchem S365<<locked>>80%31,850 psi50%2828 fps97.7%
Somchem S385<<locked>>92%44,498 psi70%3068 fps95%
Vihtavuori N133<<locked>>80%52,402 psi82%3071 fps100%
Vihtavuori N135<<locked>>80%48,704 psi76%3064 fps100%
Vihtavuori N140<<locked>>80%48,921 psi77%3074 fps100%
Vihtavuori N150<<locked>>80%40,640 psi64%2933 fps99.6%
Vihtavuori N160<<locked>>80%36,666 psi57%2884 fps96%
Vihtavuori N165<<locked>>98%46,731 psi73%3100 fps95.3%
Vihtavuori N540<<locked>>80%47,413 psi74%3061 fps100%
Vihtavuori N550<<locked>>80%36,201 psi57%2881 fps95.6%
Vihtavuori N555<<locked>>86%33,997 psi53%2881 fps95.8%
Winchester 6.5 StaBALL<<locked>>80%36,071 psi57%2851 fps98.2%
Winchester 760<<locked>>84%42,989 psi67%3071 fps95.3%
Winchester StaBALL HD<<locked>>88%29,095 psi46%2815 fps95.3%
Winchester StaBALL Match<<locked>>80%50,792 psi80%3179 fps100%
Winchester Supreme 780<<locked>>98%50,778 psi80%3182 fps95.6%

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 93 powders for .240 Weath. Mag. loaded with the .243 | 85gr | Lehigh Defense Controlled Chaos. Alliant Reloder-26 delivers the highest muzzle velocity at 3,445 fps; across all powders the maximum-charge window runs from 2,083 fps to 3,445 fps. Accurate 3100 gives the best case fill at 100 %, and 93 of the 93 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 85.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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. ReloadSwiss RS 60, Alliant Reloder-16, ReloadSwiss RS 70 rank at the top here: for .240 Weath. Mag. with the .243 | 85gr | Lehigh Defense Controlled Chaos they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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