Load Specifications
Load data in caliber .240 Weath. Mag. with .243 | 80gr | Sierra VarmintKing bullet and 91 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Winchester 760.
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>> | 84% | 55,724 psi | 87% | 3264 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 57,435 psi | 90% | 3320 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,213 psi | 80% | 3278 fps | 97.9% |
| Accurate 4064 | <<locked>> | 86% | 56,188 psi | 88% | 3323 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 56,913 psi | 89% | 3419 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 55,143 psi | 86% | 3350 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 88% | 56,521 psi | 89% | 3356 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 98% | 54,447 psi | 85% | 3386 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 82% | 57,334 psi | 90% | 3353 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,753 psi | 87% | 3484 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 54,505 psi | 85% | 3383 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,130 psi | 90% | 3379 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 57,493 psi | 90% | 3402 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 57,711 psi | 90% | 3488 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,477 psi | 87% | 3458 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,392 psi | 90% | 3438 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,935 psi | 75% | 3304 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,930 psi | 66% | 3179 fps | 96.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,506 psi | 87% | 3520 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,259 psi | 87% | 3360 fps | 99.6% |
| Bofors RP3 | <<locked>> | 86% | 54,476 psi | 85% | 3337 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 57,464 psi | 90% | 3366 fps | 97.7% |
| Hodgdon BL-C2 | <<locked>> | 82% | 57,566 psi | 90% | 3379 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 54,926 psi | 86% | 3346 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 92% | 55,767 psi | 87% | 3412 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 90% | 55,434 psi | 87% | 3366 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 82% | 55,738 psi | 87% | 3363 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,157 psi | 85% | 3337 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,970 psi | 88% | 3396 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 56,173 psi | 88% | 3448 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,100 psi | 57% | 2159 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 56,724 psi | 89% | 3360 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 56,217 psi | 88% | 3346 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,782 psi | 87% | 3333 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,042 psi | 86% | 3301 fps | 97.7% |
| IMR 4350 | <<locked>> | 94% | 55,071 psi | 86% | 3337 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,782 psi | 87% | 3340 fps | 97.8% |
| IMR 4831 | <<locked>> | 96% | 57,479 psi | 90% | 3409 fps | 99.8% |
| IMR 4895 | <<locked>> | 84% | 55,245 psi | 87% | 3376 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 82% | 57,334 psi | 90% | 3353 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,695 psi | 87% | 3323 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 57,319 psi | 90% | 3323 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,941 psi | 88% | 3330 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,796 psi | 87% | 3337 fps | 98.9% |
| Lovex S070 | <<locked>> | 94% | 57,087 psi | 89% | 3376 fps | 98.3% |
| Norma 201 | <<locked>> | 84% | 57,377 psi | 90% | 3350 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,607 psi | 86% | 3291 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,710 psi | 89% | 3389 fps | 100% |
| Norma 204 | <<locked>> | 94% | 55,782 psi | 87% | 3386 fps | 96.1% |
| Norma MRPᴾ | <<locked>> | 100% | 54,346 psi | 85% | 3461 fps | 97.7% |
| Norma URP | <<locked>> | 94% | 55,651 psi | 87% | 3402 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 86% | 57,653 psi | 90% | 3412 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 54,563 psi | 86% | 3392 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,550 psi | 57% | 2201 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,100 psi | 86% | 3327 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 54,723 psi | 86% | 3415 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 54,723 psi | 86% | 3451 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 57,058 psi | 89% | 3438 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,796 psi | 87% | 3471 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 84% | 54,694 psi | 86% | 3294 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 54,592 psi | 86% | 3333 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,623 psi | 89% | 3425 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 92% | 57,464 psi | 90% | 3366 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,796 psi | 87% | 3337 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,695 psi | 87% | 3323 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,941 psi | 88% | 3330 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,087 psi | 89% | 3376 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,072 psi | 88% | 3392 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,739 psi | 89% | 3350 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,334 psi | 90% | 3373 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,810 psi | 86% | 3222 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,796 psi | 87% | 3222 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,782 psi | 87% | 3281 fps | 97.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,115 psi | 88% | 3419 fps | 96.6% |
| Somchem S335 | <<locked>> | 82% | 54,404 psi | 85% | 3215 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,217 psi | 88% | 3333 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 54,389 psi | 85% | 3323 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 54,868 psi | 86% | 3409 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,435 psi | 90% | 3396 fps | 97.7% |
| Vihtavuori N133 | <<locked>> | 82% | 55,288 psi | 87% | 3209 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 54,650 psi | 86% | 3255 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,158 psi | 86% | 3264 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,811 psi | 87% | 3301 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,389 psi | 85% | 3340 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 86% | 57,101 psi | 89% | 3314 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,290 psi | 90% | 3402 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,548 psi | 84% | 3396 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,302 psi | 85% | 3304 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,767 psi | 87% | 3412 fps | 97.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,468 psi | 68% | 3340 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 57,638 psi | 90% | 3383 fps | 100% |
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% | 48,950 psi | 77% | 3156 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,992 psi | 74% | 3123 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 41,408 psi | 65% | 3074 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 46,311 psi | 73% | 3153 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 37,405 psi | 59% | 3012 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 51,677 psi | 81% | 3284 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 43,801 psi | 69% | 3104 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 96% | 51,213 psi | 80% | 3323 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,751 psi | 84% | 3291 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,327 psi | 76% | 3340 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 50,952 psi | 80% | 3314 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,150 psi | 69% | 3133 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,224 psi | 74% | 3212 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 82% | 36,506 psi | 57% | 3018 fps | 95.8% |
| Alliant Reloder-17 | 45.7 gr | 80% | 38,696 psi | 61% | 3104 fps | 98.2% |
| Alliant Reloder-19 | <<locked>> | 96% | 50,256 psi | 79% | 3304 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 88% | 32,358 psi | 51% | 2910 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 98% | 39,291 psi | 62% | 3110 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 90% | 38,072 psi | 60% | 3130 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,503 psi | 81% | 3291 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 44,454 psi | 70% | 3143 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 47,514 psi | 74% | 3173 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 53,954 psi | 85% | 3320 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,005 psi | 71% | 3150 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 86% | 45,368 psi | 71% | 3202 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 88% | 51,953 psi | 81% | 3301 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 52,214 psi | 82% | 3297 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,749 psi | 50% | 2841 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,037 psi | 77% | 3271 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 48,486 psi | 76% | 3297 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,861 psi | 42% | 1932 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,082 psi | 78% | 3241 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 52,489 psi | 82% | 3284 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,035 psi | 72% | 3146 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,385 psi | 76% | 3173 fps | 96.3% |
| IMR 4350 | <<locked>> | 90% | 48,370 psi | 76% | 3205 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 46,064 psi | 72% | 3146 fps | 95.6% |
| IMR 4831 | <<locked>> | 82% | 35,984 psi | 56% | 2956 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 48,414 psi | 76% | 3248 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 53,751 psi | 84% | 3291 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 51,750 psi | 81% | 3258 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,720 psi | 79% | 3205 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 46,238 psi | 72% | 3150 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 40,640 psi | 64% | 3022 fps | 95.5% |
| Lovex S070 | <<locked>> | 86% | 44,266 psi | 69% | 3120 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 50,676 psi | 79% | 3232 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,140 psi | 80% | 3232 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,630 psi | 73% | 3196 fps | 99.2% |
| Norma 204 | <<locked>> | 92% | 52,127 psi | 82% | 3317 fps | 95.3% |
| Norma MRP | <<locked>> | 96% | 47,036 psi | 74% | 3314 fps | 95.9% |
| Norma URP | <<locked>> | 82% | 37,246 psi | 58% | 3009 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 47,007 psi | 74% | 3219 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 41,539 psi | 65% | 3120 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,325 psi | 43% | 1978 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,121 psi | 71% | 3127 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,734 psi | 80% | 3343 fps | 99.4% |
| ReloadSwiss RS 60 | 45.7 gr | 80% | 41,118 psi | 64% | 3182 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 37,130 psi | 58% | 3025 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 39,189 psi | 61% | 3104 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 47,979 psi | 75% | 3169 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 41,611 psi | 65% | 3074 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 96% | 49,284 psi | 77% | 3284 fps | 95% |
| Rottweil R 907 | <<locked>> | 86% | 47,514 psi | 74% | 3173 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 40,640 psi | 64% | 3022 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,750 psi | 81% | 3258 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,238 psi | 72% | 3150 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 44,266 psi | 69% | 3120 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,786 psi | 67% | 3130 fps | 98.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,808 psi | 83% | 3281 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,169 psi | 79% | 3245 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,271 psi | 80% | 3166 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,192 psi | 68% | 3002 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 45,687 psi | 72% | 3084 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 52,344 psi | 82% | 3346 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 51,329 psi | 80% | 3166 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,359 psi | 82% | 3268 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 42,279 psi | 66% | 3084 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 31,357 psi | 49% | 2884 fps | 97% |
| Somchem S385 | <<locked>> | 94% | 46,978 psi | 74% | 3199 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 51,735 psi | 81% | 3150 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,979 psi | 75% | 3143 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,399 psi | 76% | 3153 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,161 psi | 63% | 3002 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 36,187 psi | 57% | 2946 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 47,079 psi | 74% | 3140 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 38,377 psi | 60% | 3012 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 86% | 33,518 psi | 53% | 2940 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,665 psi | 56% | 2913 fps | 97.6% |
| Winchester 760 | 48.2 gr | 86% | 45,658 psi | 72% | 3209 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 90% | 30,908 psi | 48% | 2943 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,299 psi | 79% | 3255 fps | 99.8% |
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 91 powders for .240 Weath. Mag. loaded with the .243 | 80gr | Sierra VarmintKing. Alliant Reloder-26 delivers the highest muzzle velocity at 3,520 fps; across all powders the maximum-charge window runs from 2,159 fps to 3,520 fps. Accurate 3100 gives the best case fill at 100 %, and 91 of the 91 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 80.0 gr projectile in 0.243" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, 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. Alliant Reloder-17, ReloadSwiss RS 60, Winchester 760 rank at the top here: for .240 Weath. Mag. with the .243 | 80gr | Sierra VarmintKing 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.