Load Specifications
Load data in caliber .243 Ackley Improved with .243 | 67gr | CutEdge ESP Raptor bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 48,370 psi | 88% | 3330 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 49,647 psi | 90% | 3386 fps | 99.8% |
| Accurate 2495 | <<locked>> | 90% | 48,747 psi | 88% | 3376 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 48,109 psi | 87% | 3389 fps | 99.6% |
| Accurate 4064 | <<locked>> | 92% | 49,168 psi | 89% | 3422 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,617 psi | 88% | 3458 fps | 96.4% |
| ADI AR 2206H | <<locked>> | 86% | 47,645 psi | 86% | 3389 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 92% | 48,762 psi | 88% | 3386 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 47,079 psi | 85% | 3353 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 86% | 49,777 psi | 90% | 3419 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 46,920 psi | 85% | 3481 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 48,167 psi | 87% | 3412 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 90% | 48,965 psi | 89% | 3435 fps | 97.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,921 psi | 87% | 3468 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 96% | 48,994 psi | 89% | 3524 fps | 98.3% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 47,471 psi | 86% | 3389 fps | 96.2% |
| Bofors RP3 | <<locked>> | 92% | 48,327 psi | 87% | 3422 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 49,095 psi | 89% | 3350 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 86% | 48,936 psi | 89% | 3432 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 82% | 46,978 psi | 85% | 3458 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 92% | 49,588 psi | 90% | 3425 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 48,037 psi | 87% | 3406 fps | 98% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,947 psi | 80% | 3327 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 47,050 psi | 85% | 3428 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,229 psi | 62% | 2234 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 49,530 psi | 90% | 3415 fps | 98.2% |
| IMR 3031 | <<locked>> | 86% | 46,992 psi | 85% | 3412 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 48,109 psi | 87% | 3369 fps | 97% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,325 psi | 84% | 3386 fps | 95.9% |
| IMR 4895 | <<locked>> | 88% | 46,702 psi | 85% | 3402 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 84% | 47,079 psi | 85% | 3353 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 82% | 49,647 psi | 90% | 3389 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 88% | 49,937 psi | 90% | 3435 fps | 99.7% |
| Lovex S060 | <<locked>> | 86% | 47,935 psi | 87% | 3323 fps | 97.5% |
| Lovex S062 | <<locked>> | 90% | 47,601 psi | 86% | 3369 fps | 98.6% |
| Norma 201 | <<locked>> | 88% | 49,342 psi | 89% | 3396 fps | 98.8% |
| Norma 202 | <<locked>> | 86% | 46,659 psi | 84% | 3353 fps | 99.7% |
| Norma 203B | <<locked>> | 90% | 48,153 psi | 87% | 3419 fps | 97.5% |
| Norma URPᴾ | <<locked>> | 100% | 48,399 psi | 88% | 3455 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 90% | 48,385 psi | 88% | 3435 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 49,734 psi | 90% | 3432 fps | 97.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 47,906 psi | 87% | 3340 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,751 psi | 63% | 2290 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 49,617 psi | 90% | 3402 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 48,472 psi | 88% | 3497 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 48,747 psi | 88% | 3540 fps | 99.8% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,892 psi | 88% | 3481 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 84% | 47,210 psi | 85% | 3340 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 88% | 46,978 psi | 85% | 3337 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 94% | 48,182 psi | 87% | 3409 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 88% | 49,937 psi | 90% | 3435 fps | 99.7% |
| Shooters World Precision | <<locked>> | 90% | 47,601 psi | 86% | 3369 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 46,833 psi | 85% | 3409 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 49,588 psi | 90% | 3419 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 48,254 psi | 87% | 3304 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 48,428 psi | 88% | 3297 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 47,587 psi | 86% | 3373 fps | 98.7% |
| Somchem S335 | <<locked>> | 86% | 47,543 psi | 86% | 3294 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 48,443 psi | 88% | 3376 fps | 97.5% |
| Somchem S355 | <<locked>> | 94% | 48,907 psi | 89% | 3415 fps | 98.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,178 psi | 78% | 3386 fps | 98.3% |
| Vihtavuori N130 | <<locked>> | 82% | 47,950 psi | 87% | 3281 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 48,370 psi | 88% | 3301 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 49,168 psi | 89% | 3386 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 47,427 psi | 86% | 3333 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 94% | 47,239 psi | 85% | 3340 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 98% | 47,805 psi | 87% | 3392 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 84% | 47,166 psi | 85% | 3346 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 90% | 49,066 psi | 89% | 3379 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,168 psi | 89% | 3383 fps | 98.4% |
| Winchester 748 | <<locked>> | 84% | 46,528 psi | 84% | 3392 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 88% | 49,226 psi | 89% | 3425 fps | 98.3% |
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 2015 | <<locked>> | 80% | 42,395 psi | 77% | 3209 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,499 psi | 84% | 3323 fps | 99.6% |
| Accurate 2495 | <<locked>> | 80% | 34,505 psi | 62% | 3064 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 41,510 psi | 75% | 3248 fps | 98.6% |
| Accurate 4064 | <<locked>> | 80% | 32,648 psi | 59% | 3031 fps | 97.2% |
| Accurate 4350 | <<locked>> | 98% | 45,266 psi | 82% | 3386 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 82% | 41,640 psi | 75% | 3251 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 88% | 42,946 psi | 78% | 3258 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,118 psi | 74% | 3215 fps | 97% |
| Alliant AR-Comp | <<locked>> | 80% | 40,306 psi | 73% | 3238 fps | 100% |
| Alliant Power Pro 2000-MR | 42.8 gr | 86% | 43,700 psi | 79% | 3402 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 36,883 psi | 67% | 3143 fps | 95.2% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,743 psi | 77% | 3294 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 98% | 44,976 psi | 81% | 3399 fps | 95.4% |
| Alliant Reloder-17 | 44.1 gr | 90% | 39,523 psi | 72% | 3291 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 43,961 psi | 80% | 3310 fps | 95.2% |
| Bofors RP3 | <<locked>> | 84% | 36,347 psi | 66% | 3136 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,033 psi | 78% | 3222 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,450 psi | 71% | 3215 fps | 97.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,700 psi | 79% | 3383 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 90% | 46,441 psi | 84% | 3360 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 39,334 psi | 71% | 3205 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 38,464 psi | 70% | 3192 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 37,855 psi | 69% | 3212 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,396 psi | 46% | 2005 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,014 psi | 69% | 3150 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 38,159 psi | 69% | 3219 fps | 99.6% |
| IMR 4064 | <<locked>> | 86% | 42,293 psi | 77% | 3238 fps | 95.4% |
| IMR 4831 | <<locked>> | 98% | 43,308 psi | 78% | 3320 fps | 95% |
| IMR 4895 | <<locked>> | 84% | 41,046 psi | 74% | 3271 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 41,118 psi | 74% | 3215 fps | 97% |
| Lovex D073.5 | <<locked>> | 80% | 46,238 psi | 84% | 3320 fps | 98.9% |
| Lovex D073.6 | <<locked>> | 80% | 37,376 psi | 68% | 3153 fps | 97.6% |
| Lovex S060 | <<locked>> | 80% | 39,726 psi | 72% | 3136 fps | 95.2% |
| Lovex S062 | <<locked>> | 82% | 36,709 psi | 66% | 3114 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 38,101 psi | 69% | 3140 fps | 96.2% |
| Norma 202 | <<locked>> | 80% | 38,348 psi | 69% | 3163 fps | 98.5% |
| Norma 203B | <<locked>> | 84% | 39,378 psi | 71% | 3215 fps | 95% |
| Norma URP | <<locked>> | 98% | 45,310 psi | 82% | 3386 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 86% | 41,916 psi | 76% | 3291 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,248 psi | 73% | 3219 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,759 psi | 81% | 3271 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,425 psi | 46% | 2047 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,253 psi | 84% | 3333 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 41,655 psi | 75% | 3343 fps | 95% |
| ReloadSwiss RS 60 | 41.2 gr | 84% | 34,345 psi | 62% | 3156 fps | 95.9% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 45,368 psi | 82% | 3409 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 41,524 psi | 75% | 3212 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 80% | 35,955 psi | 65% | 3071 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 88% | 39,088 psi | 71% | 3202 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,376 psi | 68% | 3153 fps | 97.6% |
| Shooters World Precision | <<locked>> | 82% | 36,709 psi | 66% | 3114 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 40,886 psi | 74% | 3271 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 40,451 psi | 73% | 3212 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,842 psi | 72% | 3120 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,721 psi | 59% | 2943 fps | 98% |
| Somchem S321 | <<locked>> | 80% | 44,338 psi | 80% | 3304 fps | 98.1% |
| Somchem S335 | <<locked>> | 80% | 39,320 psi | 71% | 3117 fps | 99.2% |
| Somchem S341 | <<locked>> | 82% | 41,713 psi | 75% | 3228 fps | 95.7% |
| Somchem S355 | <<locked>> | 86% | 37,434 psi | 68% | 3146 fps | 95% |
| Somchem S365 | <<locked>> | 94% | 35,157 psi | 64% | 3169 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 45,266 psi | 82% | 3232 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,030 psi | 72% | 3130 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 35,215 psi | 64% | 3084 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 36,216 psi | 66% | 3081 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 84% | 33,344 psi | 60% | 3009 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 96% | 44,715 psi | 81% | 3327 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 41,075 psi | 74% | 3209 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 80% | 34,896 psi | 63% | 3054 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 39,900 psi | 72% | 3173 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 40,147 psi | 73% | 3245 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 82% | 39,668 psi | 72% | 3212 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 72 powders for .243 Ackley Improved loaded with the .243 | 67gr | CutEdge ESP Raptor. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,540 fps; across all powders the maximum-charge window runs from 2,234 fps to 3,540 fps. Accurate 4350 gives the best case fill at 100 %, and 72 of the 72 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (381 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 67.0 gr projectile in 0.243" calls for a 1:7.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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 Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .243 Ackley Improved with the .243 | 67gr | CutEdge ESP Raptor 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.