Load Specifications
Load data in caliber .240 Weath. Mag. with .243 | 90gr | Speer FMJ bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country and Norma MRP.
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"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 56,811 psi | 89% | 3114 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 54,215 psi | 85% | 3120 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,884 psi | 89% | 3228 fps | 99.5% |
| Accurate 4064 | <<locked>> | 84% | 57,421 psi | 90% | 3176 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,013 psi | 86% | 3228 fps | 99.9% |
| Accurate High Country | <<locked>> | 96% | 54,273 psi | 85% | 3310 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 86% | 57,188 psi | 90% | 3205 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,709 psi | 87% | 3264 fps | 97.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 57,348 psi | 90% | 3320 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,869 psi | 89% | 3337 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 55,912 psi | 88% | 3261 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,505 psi | 85% | 3173 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,752 psi | 86% | 3196 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,390 psi | 87% | 3287 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 57,000 psi | 89% | 3314 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,143 psi | 86% | 3251 fps | 97.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,521 psi | 89% | 3317 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,330 psi | 84% | 3241 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,311 psi | 73% | 3153 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,809 psi | 84% | 3330 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,663 psi | 81% | 3225 fps | 96.8% |
| Bofors RP3 | <<locked>> | 84% | 55,622 psi | 87% | 3192 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,521 psi | 89% | 3317 fps | 97.9% |
| Bofors RP7 | <<locked>> | 88% | 54,940 psi | 86% | 3173 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 84% | 55,912 psi | 88% | 3209 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 90% | 56,855 psi | 89% | 3278 fps | 99% |
| Hodgdon H4350 | <<locked>> | 88% | 56,492 psi | 89% | 3235 fps | 98% |
| Hodgdon H4831 | <<locked>> | 98% | 57,725 psi | 90% | 3264 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,028 psi | 88% | 3209 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,232 psi | 90% | 3248 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 57,696 psi | 90% | 3320 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,434 psi | 57% | 2047 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,377 psi | 90% | 3209 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,463 psi | 88% | 3186 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,492 psi | 87% | 3163 fps | 98.8% |
| IMR 4350 | <<locked>> | 92% | 56,115 psi | 88% | 3209 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,478 psi | 89% | 3202 fps | 98.8% |
| IMR 4831 | <<locked>> | 92% | 55,230 psi | 87% | 3215 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,202 psi | 88% | 3228 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,100 psi | 86% | 3186 fps | 95.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,911 psi | 86% | 3291 fps | 96.2% |
| Lovex S062 | <<locked>> | 84% | 56,768 psi | 89% | 3179 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,710 psi | 89% | 3199 fps | 99.6% |
| Lovex S070 | <<locked>> | 90% | 54,578 psi | 86% | 3182 fps | 98.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,007 psi | 74% | 3051 fps | 98.1% |
| Norma 203B | <<locked>> | 84% | 57,696 psi | 90% | 3241 fps | 100% |
| Norma 204 | <<locked>> | 92% | 57,058 psi | 89% | 3261 fps | 97.6% |
| Norma MRP | <<locked>> | 98% | 56,144 psi | 88% | 3343 fps | 99% |
| Norma URP | <<locked>> | 92% | 57,116 psi | 90% | 3268 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,882 psi | 86% | 3205 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,317 psi | 87% | 3307 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 92% | 56,086 psi | 88% | 3264 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,487 psi | 78% | 3159 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,231 psi | 58% | 2096 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,637 psi | 87% | 3186 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,492 psi | 89% | 3307 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,839 psi | 86% | 3248 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 57,087 psi | 89% | 3340 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,730 psi | 72% | 3179 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 82% | 55,361 psi | 87% | 3143 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,811 psi | 87% | 3189 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,508 psi | 90% | 3238 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 96% | 54,418 psi | 85% | 3235 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 88% | 54,940 psi | 86% | 3173 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,710 psi | 89% | 3199 fps | 99.6% |
| Shooters World Precision | <<locked>> | 84% | 56,768 psi | 89% | 3179 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,578 psi | 86% | 3182 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,305 psi | 90% | 3251 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,275 psi | 88% | 3064 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,521 psi | 89% | 3146 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,954 psi | 85% | 3228 fps | 97.4% |
| Somchem S355 | <<locked>> | 86% | 55,361 psi | 87% | 3179 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 56,913 psi | 89% | 3274 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,230 psi | 87% | 3212 fps | 98.3% |
| Vihtavuori N135 | <<locked>> | 82% | 55,477 psi | 87% | 3097 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,898 psi | 88% | 3114 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,768 psi | 89% | 3153 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,709 psi | 87% | 3205 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,549 psi | 85% | 3182 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 82% | 54,317 psi | 85% | 3107 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,665 psi | 86% | 3205 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 98% | 56,014 psi | 88% | 3274 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,275 psi | 88% | 3327 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,361 psi | 87% | 3166 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 57,217 psi | 90% | 3284 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,081 psi | 77% | 3307 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,288 psi | 87% | 3202 fps | 97.5% |
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% | 53,142 psi | 83% | 3058 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,821 psi | 80% | 3058 fps | 97.3% |
| Accurate 3100 | <<locked>> | 88% | 37,695 psi | 59% | 2851 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 50,372 psi | 79% | 3064 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,754 psi | 61% | 2904 fps | 97.6% |
| Accurate High Country | 53.6 gr | 94% | 50,633 psi | 79% | 3238 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 47,369 psi | 74% | 3028 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 90% | 45,774 psi | 72% | 3071 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 98% | 53,592 psi | 84% | 3251 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,779 psi | 83% | 3268 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 46,108 psi | 72% | 3071 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,138 psi | 75% | 3061 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,343 psi | 80% | 3136 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,637 psi | 59% | 2913 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,714 psi | 67% | 3051 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 90% | 45,556 psi | 71% | 3061 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 46,064 psi | 72% | 3114 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 82% | 29,457 psi | 46% | 2690 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 92% | 35,795 psi | 56% | 2887 fps | 95.4% |
| Alliant Reloder-26 | 49.3 gr | 84% | 34,200 psi | 54% | 2884 fps | 95.6% |
| Bofors RP15 | <<locked>> | 96% | 45,411 psi | 71% | 3097 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 48,689 psi | 76% | 3074 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 46,064 psi | 72% | 3114 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 42,583 psi | 67% | 2923 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 48,733 psi | 76% | 3081 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 40,567 psi | 64% | 2949 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 82% | 46,528 psi | 73% | 3045 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 96% | 53,548 psi | 84% | 3189 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,157 psi | 55% | 2795 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,272 psi | 83% | 3186 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 42,888 psi | 67% | 3031 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,166 psi | 43% | 1831 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,780 psi | 84% | 3150 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,835 psi | 78% | 3071 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,069 psi | 82% | 3100 fps | 98.2% |
| IMR 4350 | <<locked>> | 84% | 43,352 psi | 68% | 2956 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,019 psi | 69% | 2959 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 37,115 psi | 58% | 2848 fps | 97.2% |
| IMR 4895 | <<locked>> | 80% | 52,678 psi | 83% | 3169 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,982 psi | 81% | 3127 fps | 95% |
| IMR 7828 SSC | <<locked>> | 98% | 51,285 psi | 80% | 3219 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 50,154 psi | 79% | 3068 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,365 psi | 65% | 2900 fps | 97.1% |
| Lovex S070 | <<locked>> | 80% | 39,697 psi | 62% | 2874 fps | 95.4% |
| Lovex S071 | <<locked>> | 92% | 36,274 psi | 57% | 2815 fps | 95% |
| Norma 203B | <<locked>> | 80% | 50,691 psi | 79% | 3120 fps | 100% |
| Norma 204 | <<locked>> | 86% | 46,412 psi | 73% | 3061 fps | 95.2% |
| Norma MRP | 51.3 gr | 90% | 42,366 psi | 66% | 3064 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 38,377 psi | 60% | 2894 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 80% | 51,140 psi | 80% | 3140 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 51,503 psi | 81% | 3235 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 37,246 psi | 58% | 2874 fps | 95.2% |
| Ramshot Magnum | <<locked>> | 96% | 42,627 psi | 67% | 3015 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,702 psi | 43% | 1877 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,704 psi | 76% | 3061 fps | 98.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,382 psi | 71% | 3114 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,595 psi | 60% | 2920 fps | 97.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,231 psi | 58% | 2917 fps | 96.4% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 42,467 psi | 67% | 3097 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 51,851 psi | 81% | 3084 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,643 psi | 72% | 3009 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 50,415 psi | 79% | 3110 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 90% | 44,628 psi | 70% | 3045 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,583 psi | 67% | 2923 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,365 psi | 65% | 2900 fps | 97.1% |
| Shooters World Precision | <<locked>> | 80% | 50,154 psi | 79% | 3068 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,697 psi | 62% | 2874 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,833 psi | 73% | 3064 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,673 psi | 73% | 2913 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,683 psi | 64% | 2838 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 47,355 psi | 74% | 3104 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 45,788 psi | 72% | 3009 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 34,983 psi | 55% | 2848 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 42,380 psi | 66% | 2959 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 52,185 psi | 82% | 3048 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,431 psi | 82% | 3058 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,830 psi | 69% | 2930 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,827 psi | 62% | 2897 fps | 97.8% |
| Vihtavuori N165 | <<locked>> | 94% | 44,541 psi | 70% | 2992 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 50,662 psi | 79% | 3045 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,233 psi | 61% | 2894 fps | 97.4% |
| Vihtavuori N555 | <<locked>> | 80% | 30,458 psi | 48% | 2710 fps | 95% |
| Vihtavuori N560 | <<locked>> | 96% | 52,591 psi | 82% | 3261 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,972 psi | 61% | 2861 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 40,799 psi | 64% | 2956 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 84% | 27,978 psi | 44% | 2723 fps | 95.8% |
| Winchester Supreme 780 | <<locked>> | 94% | 48,095 psi | 75% | 3071 fps | 95.9% |
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 87 powders for .240 Weath. Mag. loaded with the .243 | 90gr | Speer FMJ. Norma MRP delivers the highest muzzle velocity at 3,343 fps; across all powders the maximum-charge window runs from 2,047 fps to 3,343 fps. Accurate 3100 gives the best case fill at 100 %, and 87 of the 87 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 90.0 gr projectile in 0.243" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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-26, Accurate High Country, Norma MRP rank at the top here: for .240 Weath. Mag. with the .243 | 90gr | Speer FMJ 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.