Load Specifications
Load data in caliber .243 Ackley Improved with .243 | 69gr | Berger LD 15 Ogive bullet and 64 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Reloder-16.
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 2495 | <<locked>> | 86% | 48,602 psi | 88% | 3330 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 50,009 psi | 90% | 3389 fps | 99.9% |
| Accurate 4064 | <<locked>> | 88% | 48,892 psi | 88% | 3376 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 48,515 psi | 88% | 3422 fps | 97% |
| ADI AR 2206H | <<locked>> | 84% | 49,226 psi | 89% | 3392 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 88% | 47,340 psi | 86% | 3330 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 48,254 psi | 87% | 3346 fps | 99% |
| Alliant AR-Comp | <<locked>> | 82% | 48,414 psi | 88% | 3350 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 48,718 psi | 88% | 3501 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 47,137 psi | 85% | 3356 fps | 98.6% |
| Alliant Reloder-15 | <<locked>> | 86% | 47,543 psi | 86% | 3373 fps | 97.5% |
| Alliant Reloder-16 | <<locked>> | 96% | 46,934 psi | 85% | 3422 fps | 96.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 47,630 psi | 86% | 3468 fps | 98.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 49,081 psi | 89% | 3396 fps | 97.3% |
| Bofors RP3 | <<locked>> | 88% | 47,442 psi | 86% | 3369 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 82% | 47,587 psi | 86% | 3366 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 88% | 48,283 psi | 87% | 3369 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 84% | 49,690 psi | 90% | 3409 fps | 98.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,443 psi | 89% | 3419 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 48,965 psi | 89% | 3435 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,998 psi | 63% | 2238 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 47,848 psi | 87% | 3353 fps | 98.4% |
| IMR 3031 | <<locked>> | 84% | 49,168 psi | 89% | 3415 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 49,792 psi | 90% | 3379 fps | 98% |
| IMR 4831 | <<locked>> | 98% | 49,124 psi | 89% | 3415 fps | 97.3% |
| IMR 4895 | <<locked>> | 86% | 48,718 psi | 88% | 3412 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 82% | 48,254 psi | 87% | 3346 fps | 99% |
| Lovex D073.6 | <<locked>> | 84% | 48,776 psi | 88% | 3376 fps | 99.8% |
| Lovex S060 | <<locked>> | 84% | 49,139 psi | 89% | 3323 fps | 98.3% |
| Lovex S062 | <<locked>> | 88% | 49,588 psi | 90% | 3379 fps | 99.3% |
| Norma 201 | <<locked>> | 84% | 48,109 psi | 87% | 3340 fps | 99% |
| Norma 202 | <<locked>> | 84% | 48,733 psi | 88% | 3360 fps | 100% |
| Norma 203B | <<locked>> | 86% | 46,818 psi | 85% | 3360 fps | 97.8% |
| Norma URP | <<locked>> | 96% | 47,703 psi | 86% | 3409 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 86% | 47,108 psi | 85% | 3376 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 48,080 psi | 87% | 3369 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,331 psi | 64% | 2287 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 47,326 psi | 86% | 3438 fps | 97.3% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 47,471 psi | 86% | 3484 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 48,138 psi | 87% | 3435 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 82% | 49,095 psi | 89% | 3343 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 86% | 48,747 psi | 88% | 3343 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 90% | 47,282 psi | 86% | 3356 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 84% | 48,776 psi | 88% | 3376 fps | 99.8% |
| Shooters World Precision | <<locked>> | 88% | 49,588 psi | 90% | 3379 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 48,892 psi | 88% | 3419 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 47,935 psi | 87% | 3356 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,705 psi | 90% | 3297 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 46,746 psi | 85% | 3235 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 49,110 psi | 89% | 3291 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 50,009 psi | 90% | 3379 fps | 98.4% |
| Somchem S355 | <<locked>> | 90% | 47,834 psi | 87% | 3360 fps | 98.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,211 psi | 89% | 3484 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 84% | 49,937 psi | 90% | 3294 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 48,095 psi | 87% | 3323 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 49,284 psi | 89% | 3333 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 49,211 psi | 89% | 3346 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 94% | 46,992 psi | 85% | 3350 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 82% | 48,689 psi | 88% | 3346 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 86% | 47,500 psi | 86% | 3314 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 96% | 49,516 psi | 90% | 3415 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 47,529 psi | 86% | 3327 fps | 98.7% |
| Winchester 748 | <<locked>> | 82% | 48,254 psi | 87% | 3396 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 47,616 psi | 86% | 3360 fps | 98.5% |
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% | 39,682 psi | 72% | 3150 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,731 psi | 85% | 3327 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 37,492 psi | 68% | 3123 fps | 99% |
| Accurate 4350 | <<locked>> | 92% | 41,930 psi | 76% | 3278 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 43,424 psi | 79% | 3264 fps | 97% |
| ADI AR 2208 | <<locked>> | 84% | 41,742 psi | 76% | 3202 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,469 psi | 82% | 3287 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 80% | 45,368 psi | 82% | 3294 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 42,322 psi | 77% | 3343 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,274 psi | 66% | 3094 fps | 95.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,189 psi | 71% | 3176 fps | 95% |
| Alliant Reloder-16 | 44.2 gr | 92% | 41,365 psi | 75% | 3284 fps | 95% |
| Alliant Reloder-17 | 44.5 gr | 86% | 38,711 psi | 70% | 3241 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,772 psi | 77% | 3258 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 35,984 psi | 65% | 3094 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,208 psi | 80% | 3297 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 86% | 45,121 psi | 82% | 3301 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 43,845 psi | 79% | 3281 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 38,072 psi | 69% | 3156 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,682 psi | 72% | 3225 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,049 psi | 47% | 2008 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,858 psi | 76% | 3219 fps | 97.1% |
| IMR 3031 | <<locked>> | 80% | 42,989 psi | 78% | 3291 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 41,278 psi | 75% | 3189 fps | 95.9% |
| IMR 4831 | <<locked>> | 94% | 43,105 psi | 78% | 3284 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 40,089 psi | 73% | 3212 fps | 96.1% |
| IMR 8208 XBR | <<locked>> | 80% | 45,469 psi | 82% | 3287 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 80% | 42,525 psi | 77% | 3245 fps | 99.2% |
| Lovex S060 | <<locked>> | 80% | 43,453 psi | 79% | 3199 fps | 97.1% |
| Lovex S062 | <<locked>> | 80% | 38,508 psi | 70% | 3127 fps | 97% |
| Norma 201 | <<locked>> | 80% | 42,395 psi | 77% | 3212 fps | 98% |
| Norma 202 | <<locked>> | 80% | 42,598 psi | 77% | 3232 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 38,580 psi | 70% | 3159 fps | 95.5% |
| Norma URP | <<locked>> | 92% | 41,872 psi | 76% | 3278 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 38,014 psi | 69% | 3159 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,049 psi | 82% | 3301 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,426 psi | 48% | 2060 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,756 psi | 74% | 3284 fps | 95.4% |
| ReloadSwiss RS 60 | 41.4 gr | 80% | 33,533 psi | 61% | 3107 fps | 96.5% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 44,875 psi | 81% | 3366 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 46,267 psi | 84% | 3284 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 40,205 psi | 73% | 3150 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 36,114 psi | 65% | 3087 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,525 psi | 77% | 3245 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 38,508 psi | 70% | 3127 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 39,958 psi | 72% | 3219 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,771 psi | 76% | 3215 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,685 psi | 79% | 3179 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,260 psi | 66% | 3005 fps | 99.2% |
| Somchem S335 | <<locked>> | 80% | 43,424 psi | 79% | 3179 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 43,526 psi | 79% | 3241 fps | 97% |
| Somchem S355 | <<locked>> | 82% | 37,072 psi | 67% | 3104 fps | 95.6% |
| Somchem S365 | <<locked>> | 88% | 32,764 psi | 59% | 3068 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 43,947 psi | 80% | 3179 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,508 psi | 71% | 3150 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,292 psi | 73% | 3150 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 32,880 psi | 60% | 2959 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 92% | 43,903 psi | 79% | 3281 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 45,542 psi | 82% | 3281 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 80% | 39,001 psi | 71% | 3127 fps | 99% |
| Vihtavuori N550 | <<locked>> | 92% | 43,337 psi | 78% | 3278 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 36,027 psi | 65% | 3048 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 45,063 psi | 82% | 3327 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,365 psi | 75% | 3219 fps | 97.1% |
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 64 powders for .243 Ackley Improved loaded with the .243 | 69gr | Berger LD 15 Ogive. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,501 fps; across all powders the maximum-charge window runs from 2,238 fps to 3,501 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 64 of the 64 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (381 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. The 69.0 gr projectile in 0.243" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, 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. ReloadSwiss RS 60, Alliant Reloder-17, Alliant Reloder-16 rank at the top here: for .243 Ackley Improved with the .243 | 69gr | Berger LD 15 Ogive 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.