Load Specifications
Load data in caliber .240 Weath. Mag. with .243 | 105gr | Berger BT Target bullet and 80 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 3100 | <<locked>> | 96% | 54,070 psi | 85% | 2979 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 55,709 psi | 87% | 3025 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 55,361 psi | 87% | 3127 fps | 98% |
| Accurate MAGPRO | <<locked>> | 96% | 56,420 psi | 88% | 3130 fps | 97% |
| ADI AR 2208 | <<locked>> | 84% | 57,261 psi | 90% | 2992 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,507 psi | 89% | 3077 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 96% | 54,317 psi | 85% | 3071 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,161 psi | 63% | 2838 fps | 97.3% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,826 psi | 89% | 3074 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,810 psi | 86% | 2963 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,362 psi | 88% | 3081 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,056 psi | 85% | 3045 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,086 psi | 88% | 3064 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,508 psi | 90% | 3130 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,621 psi | 86% | 3048 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,444 psi | 79% | 3041 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,216 psi | 87% | 3140 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,289 psi | 88% | 3107 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 55,927 psi | 88% | 2979 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,456 psi | 73% | 2963 fps | 96.5% |
| Bofors RP5 | <<locked>> | 98% | 57,508 psi | 90% | 3130 fps | 99.1% |
| Bofors RP7 | <<locked>> | 86% | 54,998 psi | 86% | 2969 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,777 psi | 78% | 2982 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 82% | 56,130 psi | 88% | 2999 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 57,551 psi | 90% | 3081 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 56,652 psi | 89% | 3035 fps | 99% |
| Hodgdon H4831 | <<locked>> | 94% | 54,186 psi | 85% | 3009 fps | 96.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,043 psi | 89% | 3058 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,666 psi | 89% | 2999 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,545 psi | 78% | 3094 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 86% | 54,230 psi | 85% | 3058 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 58% | 1893 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,782 psi | 89% | 2976 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,405 psi | 88% | 3009 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,521 psi | 89% | 2995 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 55,898 psi | 88% | 3015 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,593 psi | 87% | 2999 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 98% | 55,608 psi | 87% | 3107 fps | 97.9% |
| Lovex S062 | <<locked>> | 82% | 57,188 psi | 90% | 2966 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,000 psi | 89% | 2995 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,085 psi | 86% | 2989 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,648 psi | 81% | 2943 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 57,435 psi | 90% | 3064 fps | 98.8% |
| Norma MRP | <<locked>> | 96% | 57,450 psi | 90% | 3156 fps | 99.8% |
| Norma URP | <<locked>> | 90% | 57,667 psi | 90% | 3061 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,434 psi | 88% | 3133 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 56,666 psi | 89% | 3068 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,288 psi | 85% | 3058 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,637 psi | 59% | 1942 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,854 psi | 88% | 2982 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 57,406 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,593 psi | 87% | 3048 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,740 psi | 90% | 3136 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,879 psi | 78% | 3091 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 84% | 56,086 psi | 88% | 2979 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,259 psi | 85% | 2986 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 94% | 55,434 psi | 87% | 3051 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 86% | 54,998 psi | 86% | 2969 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,000 psi | 89% | 2995 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,188 psi | 90% | 2966 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,085 psi | 86% | 2989 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,595 psi | 90% | 3038 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,391 psi | 88% | 2851 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,463 psi | 88% | 2946 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,969 psi | 86% | 3045 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 55,782 psi | 87% | 2969 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,101 psi | 88% | 2979 fps | 97.2% |
| Somchem S365 | <<locked>> | 90% | 54,186 psi | 85% | 3012 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,956 psi | 88% | 3025 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 86% | 57,305 psi | 90% | 2946 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,115 psi | 88% | 3002 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,521 psi | 87% | 3002 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 88% | 55,274 psi | 87% | 3005 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 57,101 psi | 89% | 3077 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 57,377 psi | 90% | 3146 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,895 psi | 83% | 3051 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,622 psi | 87% | 2959 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,114 psi | 85% | 3025 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,390 psi | 87% | 3182 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,159 psi | 88% | 3018 fps | 98.8% |
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 3100 | <<locked>> | 82% | 33,489 psi | 52% | 2569 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 42,366 psi | 66% | 2789 fps | 99.4% |
| Accurate High Country | 48.3 gr | 88% | 44,846 psi | 70% | 2927 fps | 95.5% |
| Accurate MAGPRO | <<locked>> | 92% | 49,008 psi | 77% | 2995 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 50,749 psi | 80% | 2887 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,669 psi | 64% | 2769 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 92% | 47,224 psi | 74% | 2940 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 96% | 35,346 psi | 55% | 2710 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 40,872 psi | 64% | 2772 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,576 psi | 81% | 2910 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,683 psi | 64% | 2795 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,601 psi | 73% | 2923 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 40,451 psi | 63% | 2762 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 88% | 41,075 psi | 64% | 2818 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,197 psi | 47% | 2543 fps | 98% |
| Alliant Reloder-25 | <<locked>> | 86% | 32,068 psi | 50% | 2615 fps | 95.7% |
| Alliant Reloder-26 | 45.2 gr | 80% | 32,503 psi | 51% | 2664 fps | 96.7% |
| Bofors RP15 | <<locked>> | 90% | 40,524 psi | 64% | 2802 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 52,199 psi | 82% | 2923 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 43,526 psi | 68% | 2900 fps | 95.6% |
| Bofors RP5 | <<locked>> | 88% | 41,075 psi | 64% | 2818 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 45,527 psi | 71% | 2795 fps | 97.7% |
| Hodgdon H1000 | <<locked>> | 96% | 43,468 psi | 68% | 2854 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 52,475 psi | 82% | 2940 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,121 psi | 69% | 2838 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 46,659 psi | 73% | 2854 fps | 97.3% |
| Hodgdon H4831 | <<locked>> | 90% | 47,413 psi | 74% | 2887 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 49,559 psi | 78% | 2927 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,261 psi | 60% | 2680 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 40,553 psi | 64% | 2887 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 43,352 psi | 68% | 2854 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,586 psi | 43% | 1696 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,417 psi | 84% | 2920 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,205 psi | 65% | 2723 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,963 psi | 74% | 2828 fps | 98.4% |
| IMR 4831 | <<locked>> | 80% | 40,393 psi | 63% | 2736 fps | 99.2% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,905 psi | 72% | 2822 fps | 95% |
| IMR 7828 SSC | <<locked>> | 92% | 45,281 psi | 71% | 2913 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 53,490 psi | 84% | 2910 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,585 psi | 70% | 2776 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 42,728 psi | 67% | 2759 fps | 97.8% |
| Lovex S071 | <<locked>> | 86% | 32,866 psi | 52% | 2552 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 40,930 psi | 64% | 2753 fps | 95.2% |
| Norma MRP | 46.1 gr | 84% | 37,536 psi | 59% | 2766 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 41,611 psi | 65% | 2776 fps | 99.2% |
| Ramshot Grand | <<locked>> | 92% | 45,281 psi | 71% | 2923 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 40,654 psi | 64% | 2769 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 90% | 37,637 psi | 59% | 2726 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,210 psi | 44% | 1739 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,301 psi | 82% | 2927 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,414 psi | 77% | 2972 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,163 psi | 66% | 2808 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,466 psi | 63% | 2815 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 37,507 psi | 59% | 2802 fps | 96% |
| Rottweil R 903 | <<locked>> | 80% | 49,211 psi | 77% | 2867 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,802 psi | 70% | 2808 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 84% | 39,755 psi | 62% | 2749 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 45,527 psi | 71% | 2795 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,585 psi | 70% | 2776 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 53,490 psi | 84% | 2910 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,728 psi | 67% | 2759 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,662 psi | 79% | 2930 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,806 psi | 78% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,627 psi | 68% | 2720 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 39,392 psi | 62% | 2743 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 49,385 psi | 77% | 2867 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,994 psi | 77% | 2858 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 38,537 psi | 60% | 2736 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,695 psi | 59% | 2671 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 47,079 psi | 74% | 2789 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,163 psi | 68% | 2779 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 39,769 psi | 62% | 2710 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 42,554 psi | 67% | 2776 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 33,794 psi | 53% | 2628 fps | 98% |
| Vihtavuori N560 | <<locked>> | 90% | 46,586 psi | 73% | 2946 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 96% | 46,311 psi | 73% | 2930 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,177 psi | 66% | 2740 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,121 psi | 69% | 2838 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,789 psi | 42% | 2530 fps | 97.5% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,595 psi | 62% | 2713 fps | 95% |
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 80 powders for .240 Weath. Mag. loaded with the .243 | 105gr | Berger BT Target. Winchester StaBALL HD delivers the highest muzzle velocity at 3,182 fps; across all powders the maximum-charge window runs from 1,893 fps to 3,182 fps. ADI AR 2225 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 105.0 gr projectile in 0.243" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP15 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 | 105gr | Berger BT Target 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.