Load Specifications
Load data in caliber .240 Weath. Mag. with .243 | 75gr | Impala LW CFN bullet and 82 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.
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 2495 | <<locked>> | 82% | 54,955 psi | 86% | 3323 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,781 psi | 86% | 3340 fps | 96.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,779 psi | 83% | 3369 fps | 97.6% |
| Accurate 4064 | <<locked>> | 84% | 54,824 psi | 86% | 3373 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 54,824 psi | 86% | 3455 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 82% | 56,057 psi | 88% | 3438 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 88% | 57,101 psi | 89% | 3438 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,130 psi | 88% | 3566 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,549 psi | 85% | 3409 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,853 psi | 86% | 3432 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,505 psi | 85% | 3504 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 90% | 56,014 psi | 88% | 3543 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,153 psi | 77% | 3396 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 56,231 psi | 88% | 3602 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,927 psi | 88% | 3445 fps | 99.4% |
| Bofors RP3 | <<locked>> | 86% | 55,883 psi | 88% | 3435 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 55,187 psi | 86% | 3389 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 86% | 56,057 psi | 88% | 3435 fps | 99% |
| Hodgdon H414 | <<locked>> | 92% | 56,420 psi | 88% | 3494 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 90% | 56,014 psi | 88% | 3445 fps | 96% |
| Hodgdon H4895 | <<locked>> | 82% | 56,681 psi | 89% | 3451 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 55,201 psi | 87% | 3428 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,956 psi | 89% | 3488 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 56,652 psi | 89% | 3524 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,390 psi | 57% | 2221 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,624 psi | 90% | 3451 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,101 psi | 89% | 3442 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,550 psi | 89% | 3419 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 84% | 56,028 psi | 88% | 3389 fps | 97.3% |
| IMR 4350 | <<locked>> | 94% | 55,651 psi | 87% | 3412 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,362 psi | 88% | 3419 fps | 97.3% |
| IMR 4831 | <<locked>> | 94% | 54,766 psi | 86% | 3435 fps | 99.3% |
| IMR 4895 | <<locked>> | 84% | 56,217 psi | 88% | 3468 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 82% | 57,014 psi | 89% | 3422 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,795 psi | 86% | 3353 fps | 99.8% |
| Lovex S062 | <<locked>> | 86% | 57,072 psi | 89% | 3422 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,898 psi | 89% | 3422 fps | 98.6% |
| Lovex S070 | <<locked>> | 92% | 54,694 psi | 86% | 3399 fps | 97.3% |
| Norma 201 | <<locked>> | 82% | 55,477 psi | 87% | 3389 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,680 psi | 87% | 3386 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,682 psi | 90% | 3478 fps | 99.9% |
| Norma MRPᴾ | <<locked>> | 100% | 55,042 psi | 86% | 3543 fps | 97.2% |
| Norma URP | <<locked>> | 94% | 56,463 psi | 88% | 3491 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 84% | 54,723 psi | 86% | 3435 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 94% | 55,143 psi | 86% | 3471 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,927 psi | 58% | 2270 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,927 psi | 88% | 3409 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,550 psi | 87% | 3507 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,608 psi | 87% | 3547 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 54,259 psi | 85% | 3465 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 56,275 psi | 88% | 3550 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 84% | 56,086 psi | 88% | 3389 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,985 psi | 88% | 3428 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 57,203 psi | 90% | 3501 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 90% | 55,187 psi | 86% | 3389 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,898 psi | 89% | 3422 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 82% | 57,014 psi | 89% | 3422 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 57,072 psi | 89% | 3422 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,694 psi | 86% | 3399 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 57,029 psi | 89% | 3484 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,607 psi | 86% | 3399 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,753 psi | 87% | 3310 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,507 psi | 89% | 3307 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 56,840 psi | 89% | 3363 fps | 97.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,681 psi | 89% | 3494 fps | 96% |
| Somchem S335 | <<locked>> | 82% | 55,854 psi | 88% | 3310 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,971 psi | 89% | 3419 fps | 99.9% |
| Somchem S355 | <<locked>> | 88% | 55,912 psi | 88% | 3425 fps | 99.9% |
| Somchem S365 | <<locked>> | 96% | 55,593 psi | 87% | 3497 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 54,708 psi | 86% | 3415 fps | 96.5% |
| Vihtavuori N133 | <<locked>> | 82% | 56,014 psi | 88% | 3294 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,796 psi | 87% | 3350 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 56,086 psi | 88% | 3356 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 57,130 psi | 90% | 3392 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,143 psi | 86% | 3425 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 84% | 54,549 psi | 85% | 3346 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,665 psi | 86% | 3428 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 55,027 psi | 86% | 3491 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,911 psi | 86% | 3386 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,420 psi | 88% | 3494 fps | 97.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,657 psi | 70% | 3428 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,853 psi | 86% | 3412 fps | 99.9% |
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 2495 | <<locked>> | 80% | 51,547 psi | 81% | 3271 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 51,488 psi | 81% | 3274 fps | 95.5% |
| Accurate 3100 | <<locked>> | 94% | 43,555 psi | 68% | 3182 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 48,660 psi | 76% | 3264 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 39,334 psi | 62% | 3120 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 52,692 psi | 83% | 3376 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 45,020 psi | 71% | 3199 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,066 psi | 77% | 3425 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,484 psi | 71% | 3232 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,472 psi | 76% | 3304 fps | 98.7% |
| Alliant Reloder-16 | 43.6 gr | 82% | 37,913 psi | 59% | 3117 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,132 psi | 63% | 3202 fps | 98% |
| Alliant Reloder-23 | <<locked>> | 88% | 34,113 psi | 53% | 3018 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 90% | 39,784 psi | 62% | 3232 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,547 psi | 82% | 3383 fps | 99% |
| Bofors RP3 | <<locked>> | 80% | 46,137 psi | 72% | 3245 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 48,718 psi | 76% | 3258 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 46,412 psi | 73% | 3245 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 86% | 46,354 psi | 73% | 3291 fps | 95% |
| Hodgdon H4350 | <<locked>> | 88% | 52,663 psi | 83% | 3379 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 53,301 psi | 84% | 3389 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,286 psi | 52% | 2940 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,908 psi | 78% | 3360 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 88% | 49,255 psi | 77% | 3376 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 43% | 1991 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,879 psi | 80% | 3327 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 53,809 psi | 84% | 3386 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,340 psi | 74% | 3241 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,574 psi | 78% | 3261 fps | 95.9% |
| IMR 4350 | <<locked>> | 90% | 49,168 psi | 77% | 3284 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 47,210 psi | 74% | 3235 fps | 95.1% |
| IMR 4831 | <<locked>> | 82% | 37,565 psi | 59% | 3058 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 49,632 psi | 78% | 3340 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 53,577 psi | 84% | 3363 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,793 psi | 81% | 3294 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 47,950 psi | 75% | 3255 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 42,366 psi | 66% | 3123 fps | 95.3% |
| Lovex S070 | <<locked>> | 86% | 45,759 psi | 72% | 3215 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 52,199 psi | 82% | 3327 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 52,257 psi | 82% | 3327 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,863 psi | 75% | 3291 fps | 99% |
| Norma MRP | <<locked>> | 96% | 48,051 psi | 75% | 3399 fps | 95.4% |
| Norma URP | <<locked>> | 82% | 38,638 psi | 61% | 3104 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 47,950 psi | 75% | 3304 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 45,629 psi | 72% | 3278 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,775 psi | 44% | 2041 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,311 psi | 73% | 3215 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,996 psi | 81% | 3438 fps | 99.2% |
| ReloadSwiss RS 60 | 45.8 gr | 80% | 42,453 psi | 67% | 3278 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 38,841 psi | 61% | 3127 fps | 95.2% |
| ReloadSwiss RS 70 | 48.8 gr | 84% | 40,335 psi | 63% | 3189 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 49,821 psi | 78% | 3274 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 43,627 psi | 68% | 3182 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 98% | 53,896 psi | 84% | 3442 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 86% | 48,718 psi | 76% | 3258 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 82% | 42,366 psi | 66% | 3123 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 53,577 psi | 84% | 3363 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,950 psi | 75% | 3255 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 45,759 psi | 72% | 3215 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,135 psi | 69% | 3228 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,372 psi | 81% | 3337 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,562 psi | 82% | 3258 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,527 psi | 70% | 3097 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 47,050 psi | 74% | 3173 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 53,403 psi | 84% | 3432 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 52,576 psi | 82% | 3255 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,548 psi | 84% | 3360 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 43,801 psi | 69% | 3179 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 33,025 psi | 52% | 2992 fps | 97.1% |
| Somchem S385 | <<locked>> | 96% | 51,387 psi | 81% | 3350 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 52,910 psi | 83% | 3245 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,617 psi | 78% | 3245 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,763 psi | 78% | 3248 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,829 psi | 66% | 3100 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 37,521 psi | 59% | 3041 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 48,254 psi | 76% | 3235 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 39,856 psi | 62% | 3110 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 86% | 35,302 psi | 55% | 3051 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,101 psi | 58% | 3005 fps | 97.4% |
| Winchester 760 | <<locked>> | 86% | 46,673 psi | 73% | 3297 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 90% | 32,648 psi | 51% | 3054 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,256 psi | 80% | 3343 fps | 99.7% |
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 82 powders for .240 Weath. Mag. loaded with the .243 | 75gr | Impala LW CFN. Alliant Reloder-26 delivers the highest muzzle velocity at 3,602 fps; across all powders the maximum-charge window runs from 2,221 fps to 3,602 fps. Accurate 3100 gives the best case fill at 100 %, and 82 of the 82 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 75.0 gr projectile in 0.243" calls for a 1:10.0 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. ReloadSwiss RS 60, Alliant Reloder-16, ReloadSwiss RS 70 rank at the top here: for .240 Weath. Mag. with the .243 | 75gr | Impala LW CFN 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.