Load data for .240 Weath. Mag. + .243 | 65gr | Impala LWHV LS

.240 Weath. Mag. cartridge drawing
Impala Bullets logo

Load Specifications

Bullet Manufacturer:Impala Bullets
Bullet Weight:65 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 | 65gr | Impala LWHV LS bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Alliant Reloder-17.

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"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>82%55,013 psi86%3507 fps100%
Accurate 2495<<locked>>86%55,535 psi87%3540 fps100%
Accurate 2520<<locked>>82%56,043 psi88%3593 fps100%
Accurate 4064<<locked>>88%55,550 psi87%3589 fps100%
Accurate 4350<<locked>>96%54,998 psi86%3642 fps98.2%
ADI AR 2206H<<locked>>86%57,566 psi90%3658 fps99.3%
ADI AR 2208<<locked>>90%55,245 psi87%3586 fps98.6%
ADI Benchmark 8208<<locked>>84%56,130 psi88%3599 fps99.7%
Alliant AR-Comp<<locked>>84%57,435 psi90%3599 fps100%
Alliant Power Pro 2000-MR<<locked>>88%57,464 psi90%3780 fps99%
Alliant Reloder- TS 15.5<<locked>>90%55,622 psi87%3622 fps99.6%
Alliant Reloder-15<<locked>>88%56,086 psi88%3645 fps98.9%
Alliant Reloder-16<<locked>>98%55,100 psi86%3698 fps98.6%
Alliant Reloder-17<<locked>>94%56,710 psi89%3747 fps99.7%
Alliant Reloder-23ᴾ<<locked>>100%43,265 psi68%3432 fps97.4%
Alliant Reloder-26ᴾ<<locked>>100%49,008 psi77%3625 fps96.8%
Baschieri & Pellagri 107<<locked>>86%57,464 psi90%3658 fps98.7%
Bofors RP3<<locked>>90%56,840 psi89%3642 fps99.7%
Hodgdon Benchmark<<locked>>82%54,404 psi85%3527 fps99.8%
Hodgdon BL-C2<<locked>>84%56,463 psi88%3632 fps99.9%
Hodgdon CFE223<<locked>>82%57,740 psi90%3740 fps99%
Hodgdon H380<<locked>>90%57,319 psi90%3642 fps98.1%
Hodgdon H414<<locked>>96%57,290 psi90%3688 fps96.1%
Hodgdon H4895<<locked>>84%54,578 psi86%3606 fps99.3%
Hodgdon Hybrid 100Vᴾ<<locked>>100%55,158 psi86%3615 fps99.4%
Hodgdon LEVERevolution<<locked>>86%54,288 psi85%3635 fps99.6%
Hodgdon TrailBossᴾ<<locked>>100%35,679 psi56%2349 fps100%
Hodgdon VARGET<<locked>>86%55,695 psi87%3609 fps99.4%
IMR 3031<<locked>>84%54,549 psi85%3609 fps100%
IMR 4064<<locked>>88%54,549 psi85%3570 fps98.7%
IMR 4451 Enduron<<locked>>94%57,711 psi90%3615 fps96%
IMR 4831<<locked>>98%55,100 psi86%3622 fps98.3%
IMR 4895<<locked>>88%57,421 psi90%3681 fps99.4%
IMR 8208 XBR<<locked>>84%56,130 psi88%3599 fps99.7%
Lovex D073.6<<locked>>84%54,447 psi85%3576 fps100%
Lovex S060<<locked>>86%56,666 psi89%3570 fps99.3%
Lovex S062<<locked>>88%54,897 psi86%3576 fps99.7%
Lovex S065<<locked>>94%54,433 psi85%3553 fps96.8%
Lovex S070<<locked>>96%55,521 psi87%3589 fps95.9%
Norma 201<<locked>>86%56,710 psi89%3602 fps99.8%
Norma 202<<locked>>86%57,058 psi89%3609 fps100%
Norma 203B<<locked>>88%55,274 psi87%3629 fps99.1%
Norma URP<<locked>>98%56,942 psi89%3684 fps98.4%
Ramshot Big Game<<locked>>88%55,854 psi88%3645 fps99.1%
Ramshot Hunter<<locked>>98%55,854 psi88%3665 fps96.8%
Ramshot TAC<<locked>>84%56,884 psi89%3606 fps97.5%
Ramshot Wild Boar<<locked>>84%56,405 psi88%3629 fps99.2%
Ramshot X-Terminator<<locked>>82%57,101 psi89%3593 fps99.2%
ReloadSwiss RS 14ᴾ<<locked>>100%36,361 psi57%2408 fps100%
ReloadSwiss RS 50<<locked>>90%57,305 psi90%3609 fps96.7%
ReloadSwiss RS 52<<locked>>86%56,304 psi88%3714 fps98.8%
ReloadSwiss RS 60<<locked>>92%56,362 psi88%3757 fps100%
ReloadSwiss RS 62<<locked>>96%54,520 psi85%3652 fps97.9%
ReloadSwiss RS 70<<locked>>98%57,305 psi90%3743 fps98.1%
Rottweil R 901<<locked>>82%54,781 psi86%3547 fps100%
Rottweil R 902<<locked>>88%57,276 psi90%3602 fps99.8%
Rottweil R 903<<locked>>92%56,652 psi89%3632 fps99.6%
Shooters World Long Rifle<<locked>>94%54,433 psi85%3553 fps96.8%
Shooters World Match Rifle<<locked>>84%54,447 psi85%3576 fps100%
Shooters World Precision<<locked>>88%54,897 psi86%3576 fps99.7%
Shooters World SW4350<<locked>>96%55,521 psi87%3589 fps95.9%
SNPE Vectan SP 11<<locked>>90%54,476 psi85%3622 fps99%
SNPE Vectan SP 7<<locked>>84%55,579 psi87%3579 fps97.7%
SNPE Vectan SP 9<<locked>>86%55,912 psi88%3612 fps99.2%
SNPE Vectan Tubal 3000<<locked>>86%57,450 psi90%3537 fps100%
SNPE Vectan Tubal 5000<<locked>>90%54,418 psi85%3468 fps100%
Somchem S335<<locked>>86%57,276 psi90%3530 fps100%
Somchem S341<<locked>>84%55,013 psi86%3570 fps99%
Somchem S355<<locked>>92%56,739 psi89%3625 fps99.5%
Somchem S365ᴾ<<locked>>100%55,361 psi87%3691 fps100%
Vihtavuori N130<<locked>>82%57,101 psi89%3504 fps100%
Vihtavuori N133<<locked>>86%57,566 psi90%3520 fps100%
Vihtavuori N135<<locked>>88%56,710 psi89%3570 fps100%
Vihtavuori N140<<locked>>88%57,537 psi90%3576 fps100%
Vihtavuori N150<<locked>>92%54,505 psi85%3537 fps99.9%
Vihtavuori N160<<locked>>96%55,695 psi87%3615 fps98.2%
Vihtavuori N530<<locked>>84%56,768 psi89%3599 fps99.8%
Vihtavuori N540<<locked>>88%55,898 psi88%3563 fps100%
Vihtavuori N550<<locked>>96%55,100 psi86%3615 fps97.9%
Vihtavuori N555ᴾ<<locked>>100%47,805 psi75%3533 fps97.4%
Winchester 6.5 StaBALL<<locked>>96%56,028 psi88%3579 fps99.7%
Winchester 748<<locked>>84%57,188 psi90%3658 fps100%
Winchester 760<<locked>>96%57,290 psi90%3688 fps96.1%
Winchester StaBALL HDᴾ<<locked>>100%39,320 psi62%3415 fps97%
Winchester StaBALL Match<<locked>>86%55,999 psi88%3619 fps99.5%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%51,895 psi81%3451 fps100%
Accurate 2495<<locked>>80%46,238 psi72%3369 fps100%
Accurate 2520<<locked>>80%52,286 psi82%3527 fps100%
Accurate 4064<<locked>>80%43,569 psi68%3350 fps99.7%
Accurate 4350<<locked>>90%45,005 psi71%3435 fps95.9%
ADI AR 2206H<<locked>>80%47,877 psi75%3461 fps97.9%
ADI AR 2208<<locked>>80%40,654 psi64%3264 fps95.2%
ADI Benchmark 8208<<locked>>80%49,748 psi78%3474 fps99.1%
Alliant AR-Comp<<locked>>80%50,430 psi79%3481 fps100%
Alliant Power Pro 2000-MR<<locked>>80%43,787 psi69%3474 fps95.8%
Alliant Reloder- TS 15.5<<locked>>80%40,901 psi64%3301 fps97%
Alliant Reloder-15<<locked>>80%43,758 psi69%3376 fps96.3%
Alliant Reloder-16<<locked>>90%43,178 psi68%3425 fps95.5%
Alliant Reloder-1746.3 gr82%38,029 psi60%3307 fps95.5%
Alliant Reloder-23<<locked>>96%38,377 psi60%3297 fps95.7%
Alliant Reloder-26<<locked>>98%45,614 psi71%3540 fps95.6%
Baschieri & Pellagri 107<<locked>>80%47,355 psi74%3451 fps96.7%
Bofors RP3<<locked>>80%41,307 psi65%3314 fps97.3%
Hodgdon Benchmark<<locked>>80%51,126 psi80%3461 fps99.6%
Hodgdon BL-C2<<locked>>80%49,429 psi77%3501 fps99.4%
Hodgdon CFE223<<locked>>80%54,114 psi85%3668 fps98.5%
Hodgdon H380<<locked>>82%44,367 psi70%3369 fps95.1%
Hodgdon H414<<locked>>94%53,301 psi84%3612 fps95.1%
Hodgdon H4895<<locked>>80%48,385 psi76%3478 fps98.4%
Hodgdon Hybrid 100V<<locked>>88%37,927 psi59%3232 fps95.6%
Hodgdon LEVERevolution<<locked>>80%44,411 psi70%3428 fps98%
Hodgdon TrailBoss<<locked>>80%26,745 psi42%2113 fps100%
Hodgdon VARGET<<locked>>80%45,992 psi72%3409 fps97.9%
IMR 3031<<locked>>80%47,892 psi75%3484 fps100%
IMR 4064<<locked>>80%42,685 psi67%3310 fps96.1%
IMR 4451 Enduron<<locked>>92%54,578 psi86%3553 fps95.2%
IMR 4831<<locked>>90%42,917 psi67%3363 fps95.4%
IMR 4895<<locked>>80%44,759 psi70%3415 fps97.2%
IMR 8208 XBR<<locked>>80%49,748 psi78%3474 fps99.1%
Lovex D073.6<<locked>>80%47,892 psi75%3448 fps99.7%
Lovex S060<<locked>>80%47,253 psi74%3383 fps97.8%
Lovex S062<<locked>>80%43,120 psi68%3327 fps98%
Lovex S065<<locked>>90%48,385 psi76%3425 fps95.3%
Lovex S070<<locked>>94%52,402 psi82%3530 fps95.1%
Norma 201<<locked>>80%47,485 psi74%3419 fps98.8%
Norma 202<<locked>>80%47,398 psi74%3425 fps99.9%
Norma 203B<<locked>>80%43,163 psi68%3363 fps96.7%
Norma URP<<locked>>90%43,976 psi69%3412 fps95.5%
Ramshot Big Game<<locked>>80%42,714 psi67%3363 fps96.4%
Ramshot Hunter<<locked>>94%49,110 psi77%3527 fps95.1%
Ramshot TAC<<locked>>80%50,067 psi78%3465 fps96%
Ramshot Wild Boar<<locked>>80%49,487 psi78%3491 fps98.2%
Ramshot X-Terminator<<locked>>80%53,722 psi84%3527 fps98.8%
ReloadSwiss RS 14<<locked>>80%27,195 psi43%2165 fps100%
ReloadSwiss RS 50<<locked>>86%50,633 psi79%3478 fps95.1%
ReloadSwiss RS 52<<locked>>80%46,021 psi72%3497 fps96.8%
ReloadSwiss RS 6045.2 gr80%37,811 psi59%3323 fps98%
ReloadSwiss RS 62<<locked>>90%44,425 psi70%3438 fps95.4%
ReloadSwiss RS 7052.8 gr92%46,934 psi74%3517 fps95.5%
Rottweil R 901<<locked>>80%51,445 psi81%3484 fps100%
Rottweil R 902<<locked>>80%45,020 psi71%3353 fps98.4%
Rottweil R 903<<locked>>80%38,783 psi61%3241 fps96.2%
Shooters World Long Rifle<<locked>>90%48,385 psi76%3425 fps95.3%
Shooters World Match Rifle<<locked>>80%47,892 psi75%3448 fps99.7%
Shooters World Precision<<locked>>80%43,120 psi68%3327 fps98%
Shooters World SW4350<<locked>>94%52,402 psi82%3530 fps95.1%
SNPE Vectan SP 11<<locked>>80%39,218 psi61%3281 fps95.4%
SNPE Vectan SP 7<<locked>>80%48,660 psi76%3435 fps96.2%
SNPE Vectan SP 9<<locked>>80%46,354 psi73%3412 fps97.5%
SNPE Vectan Tubal 3000<<locked>>80%47,819 psi75%3360 fps99.9%
SNPE Vectan Tubal 5000<<locked>>80%40,176 psi63%3182 fps99.7%
Somchem S335<<locked>>80%48,080 psi75%3366 fps100%
Somchem S341<<locked>>80%48,211 psi76%3435 fps97.9%
Somchem S355<<locked>>80%39,392 psi62%3248 fps96.1%
Somchem S365<<locked>>84%33,054 psi52%3153 fps95.1%
Vihtavuori N130<<locked>>80%53,548 psi84%3445 fps100%
Vihtavuori N133<<locked>>80%47,993 psi75%3353 fps100%
Vihtavuori N135<<locked>>80%44,295 psi69%3343 fps100%
Vihtavuori N140<<locked>>80%44,817 psi70%3337 fps99.8%
Vihtavuori N150<<locked>>80%37,376 psi59%3166 fps97.1%
Vihtavuori N160<<locked>>88%43,091 psi68%3350 fps95.1%
Vihtavuori N530<<locked>>80%50,212 psi79%3474 fps99.2%
Vihtavuori N540<<locked>>80%43,511 psi68%3320 fps99.6%
Vihtavuori N550<<locked>>90%45,498 psi71%3415 fps95.7%
Vihtavuori N555<<locked>>96%42,032 psi66%3402 fps95.8%
Winchester 6.5 StaBALL<<locked>>84%37,913 psi59%3182 fps96%
Winchester 748<<locked>>80%49,980 psi78%3524 fps99.6%
Winchester 760<<locked>>94%53,693 psi84%3619 fps95.2%
Winchester StaBALL HD<<locked>>98%36,927 psi58%3333 fps95.7%
Winchester StaBALL Match<<locked>>80%46,006 psi72%3419 fps98%

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 85 powders for .240 Weath. Mag. loaded with the .243 | 65gr | Impala LWHV LS. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,780 fps; across all powders the maximum-charge window runs from 2,349 fps to 3,780 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 85 of the 85 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 65.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V 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, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for .240 Weath. Mag. with the .243 | 65gr | Impala LWHV LS 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.

← All load data