Load Specifications
Load data in caliber .240 Flang. N.E. with .243 | 75gr | Barnes BND SPIT-FIRE bullet and 24 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, Hodgdon Hybrid 100V and Winchester 6.5 StaBALL.
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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Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4064 | <<locked>> | 82% | 40,335 psi | 87% | 3159 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 82% | 39,421 psi | 85% | 3110 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 41,713 psi | 90% | 3202 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 92% | 41,597 psi | 90% | 3268 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 88% | 41,597 psi | 90% | 3297 fps | 98% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,247 psi | 82% | 3196 fps | 96.9% |
| Bofors RP3 | <<locked>> | 84% | 41,539 psi | 90% | 3205 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 41,002 psi | 88% | 3202 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,215 psi | 76% | 2188 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 41,379 psi | 89% | 3156 fps | 96.8% |
| Lovex S062 | <<locked>> | 82% | 41,336 psi | 89% | 3163 fps | 98.5% |
| Norma 203B | <<locked>> | 82% | 41,394 psi | 89% | 3202 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 82% | 41,089 psi | 89% | 3212 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,563 psi | 77% | 2238 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,452 psi | 89% | 3314 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 86% | 41,713 psi | 90% | 3202 fps | 98.1% |
| Shooters World Precision | <<locked>> | 82% | 41,336 psi | 89% | 3163 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 40,132 psi | 86% | 3196 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 41,437 psi | 89% | 3087 fps | 100% |
| Somchem S355 | <<locked>> | 84% | 39,813 psi | 86% | 3146 fps | 97.4% |
| Somchem S365 | <<locked>> | 94% | 40,176 psi | 87% | 3255 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 86% | 40,582 psi | 87% | 3130 fps | 98.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,901 psi | 90% | 3297 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,713 psi | 90% | 3169 fps | 98.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4064 | <<locked>> | 80% | 37,913 psi | 82% | 3104 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 37,115 psi | 80% | 3051 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,651 psi | 79% | 3077 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 90% | 39,160 psi | 84% | 3202 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 82% | 34,040 psi | 73% | 3084 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 36,042 psi | 78% | 3130 fps | 96% |
| Bofors RP3 | <<locked>> | 80% | 36,376 psi | 78% | 3077 fps | 96.9% |
| Hodgdon Hybrid 100V | 41.6 gr | 88% | 33,591 psi | 72% | 3005 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,150 psi | 56% | 1965 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,943 psi | 84% | 3094 fps | 96.1% |
| Lovex S062 | <<locked>> | 80% | 38,899 psi | 84% | 3104 fps | 97.9% |
| Norma 203B | <<locked>> | 80% | 38,696 psi | 83% | 3133 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 80% | 38,450 psi | 83% | 3143 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,295 psi | 57% | 2005 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,678 psi | 73% | 3091 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 80% | 34,055 psi | 73% | 3005 fps | 95.7% |
| Shooters World Precision | <<locked>> | 80% | 38,899 psi | 84% | 3104 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,085 psi | 76% | 3058 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,564 psi | 79% | 2976 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 35,012 psi | 75% | 3018 fps | 95.8% |
| Somchem S365 | 41.8 gr | 86% | 30,777 psi | 66% | 2986 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 33,199 psi | 72% | 2943 fps | 96.8% |
| Vihtavuori N555 | <<locked>> | 96% | 36,405 psi | 78% | 3156 fps | 95.1% |
| Winchester 6.5 StaBALL | 44.2 gr | 84% | 33,968 psi | 73% | 2966 fps | 95.6% |
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 24 powders for .240 Flang. N.E. loaded with the .243 | 75gr | Barnes BND SPIT-FIRE. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,314 fps; across all powders the maximum-charge window runs from 2,188 fps to 3,314 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 24 of the 24 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (320 MPa), the top charges use 76–90 %, leaving at least 10 % headroom. The 75.0 gr projectile in 0.243" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon TrailBoss, ReloadSwiss RS 14 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. Somchem S365, Hodgdon Hybrid 100V, Winchester 6.5 StaBALL rank at the top here: for .240 Flang. N.E. with the .243 | 75gr | Barnes BND SPIT-FIRE 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.