Load Specifications
Bullet Manufacturer:Berger
Bullet Weight:115 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Caliber:.243 Ackley Improved load data
Case Length (l3):2.045"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:57 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:55,259 psi
Recommended Twist Rate:1:7.5
Load data in caliber .243 Ackley Improved with .243 | 115gr | Berger VLD Target bullet and 133 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 Winchester StaBALL HD.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 94% | 46,847 psi | 85% | 2703 fps | 99.3% |
| Accurate 3100 | <<locked>> | 94% | 47,224 psi | 85% | 2713 fps | 99.4% |
| Accurate 4350 | <<locked>> | 86% | 48,733 psi | 88% | 2749 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 48,805 psi | 88% | 2753 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 47,645 psi | 86% | 2831 fps | 96.7% |
| Accurate High Country | <<locked>> | 92% | 48,022 psi | 87% | 2841 fps | 96.8% |
| ADI AR 2209 | <<locked>> | 92% | 49,647 psi | 90% | 2792 fps | 97.9% |
| ADI AR 2209 | <<locked>> | 92% | 49,647 psi | 90% | 2792 fps | 97.9% |
| ADI AR 2213 | <<locked>> | 94% | 47,413 psi | 86% | 2782 fps | 96.2% |
| ADI AR 2213 | <<locked>> | 94% | 47,413 psi | 86% | 2782 fps | 96.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,318 psi | 68% | 2621 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,289 psi | 67% | 2621 fps | 96.5% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 46,688 psi | 84% | 2736 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 49,443 psi | 89% | 2805 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 49,879 psi | 90% | 2812 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 46,876 psi | 85% | 2769 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 46,963 psi | 85% | 2769 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 49,139 psi | 89% | 2782 fps | 97.9% |
| Alliant Reloder-19 | <<locked>> | 92% | 49,501 psi | 90% | 2789 fps | 98% |
| Alliant Reloder-22 | <<locked>> | 96% | 49,922 psi | 90% | 2838 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 46,804 psi | 85% | 2785 fps | 97.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 47,471 psi | 86% | 2779 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 96% | 47,514 psi | 86% | 2779 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,862 psi | 85% | 2818 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,210 psi | 85% | 2825 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 92% | 46,528 psi | 84% | 2841 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 46,905 psi | 85% | 2848 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 48,849 psi | 88% | 2822 fps | 97.9% |
| Bofors RP15 | <<locked>> | 98% | 49,211 psi | 89% | 2828 fps | 98% |
| Bofors RP5 | <<locked>> | 96% | 49,922 psi | 90% | 2838 fps | 98.2% |
| Bofors RP5 | <<locked>> | 94% | 46,804 psi | 85% | 2785 fps | 97.6% |
| Bofors RP7 | <<locked>> | 84% | 49,226 psi | 89% | 2700 fps | 98.6% |
| Bofors RP7 | <<locked>> | 84% | 49,255 psi | 89% | 2703 fps | 98.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,499 psi | 84% | 2756 fps | 96.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,456 psi | 84% | 2759 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 84% | 47,500 psi | 86% | 2746 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 84% | 47,572 psi | 86% | 2746 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 82% | 47,384 psi | 86% | 2703 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 82% | 47,442 psi | 86% | 2707 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,777 psi | 90% | 2769 fps | 96.1% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,792 psi | 90% | 2772 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 46,847 psi | 85% | 2687 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 46,876 psi | 85% | 2690 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,948 psi | 83% | 2861 fps | 98.2% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,934 psi | 83% | 2861 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 84% | 46,644 psi | 84% | 2766 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 84% | 47,021 psi | 85% | 2772 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,608 psi | 66% | 1745 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,767 psi | 67% | 1749 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 47,166 psi | 85% | 2684 fps | 98.3% |
| IMR 4350 | <<locked>> | 86% | 47,181 psi | 85% | 2687 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 82% | 47,529 psi | 86% | 2674 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 47,558 psi | 86% | 2677 fps | 98.7% |
| IMR 4831 | <<locked>> | 88% | 49,226 psi | 89% | 2743 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 49,603 psi | 90% | 2749 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,342 psi | 89% | 2726 fps | 96.2% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,313 psi | 89% | 2726 fps | 96.2% |
| IMR 7828 SSC | <<locked>> | 96% | 48,312 psi | 87% | 2812 fps | 96.5% |
| IMR 7828 SSC | <<locked>> | 96% | 48,660 psi | 88% | 2822 fps | 96.7% |
| Lovex S065 | <<locked>> | 84% | 47,674 psi | 86% | 2674 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 48,080 psi | 87% | 2680 fps | 99.6% |
| Lovex S070 | <<locked>> | 86% | 49,066 psi | 89% | 2720 fps | 99.1% |
| Lovex S070 | <<locked>> | 86% | 49,124 psi | 89% | 2720 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,921 psi | 87% | 2723 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,921 psi | 87% | 2723 fps | 99.4% |
| Norma 204 | <<locked>> | 86% | 47,268 psi | 86% | 2726 fps | 97.3% |
| Norma 204 | <<locked>> | 86% | 47,297 psi | 86% | 2730 fps | 97.3% |
| Norma MRP | <<locked>> | 94% | 49,458 psi | 90% | 2864 fps | 99.2% |
| Norma MRP | <<locked>> | 94% | 49,501 psi | 90% | 2864 fps | 99.2% |
| Norma URP | <<locked>> | 86% | 47,906 psi | 87% | 2740 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 47,979 psi | 87% | 2743 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 48,225 psi | 87% | 2822 fps | 96.9% |
| Ramshot Grand | <<locked>> | 96% | 48,646 psi | 88% | 2831 fps | 97% |
| Ramshot Hunter | <<locked>> | 88% | 49,719 psi | 90% | 2789 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 88% | 49,763 psi | 90% | 2789 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 98% | 46,398 psi | 84% | 2766 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 98% | 46,702 psi | 85% | 2772 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,333 psi | 68% | 1788 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,507 psi | 68% | 1791 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 49,806 psi | 90% | 2815 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 49,893 psi | 90% | 2815 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 48,312 psi | 87% | 2766 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 48,675 psi | 88% | 2776 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 46,746 psi | 85% | 2789 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 47,123 psi | 85% | 2795 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,919 psi | 83% | 2854 fps | 99% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,224 psi | 84% | 2861 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 82% | 49,893 psi | 90% | 2713 fps | 100% |
| Rottweil R 903 | <<locked>> | 82% | 49,980 psi | 90% | 2717 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 48,008 psi | 87% | 2710 fps | 96.5% |
| Rottweil R 904 | <<locked>> | 90% | 48,327 psi | 87% | 2717 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 92% | 48,443 psi | 88% | 2769 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 92% | 48,457 psi | 88% | 2769 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 84% | 49,226 psi | 89% | 2700 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 84% | 49,255 psi | 89% | 2703 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 84% | 47,674 psi | 86% | 2674 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 48,080 psi | 87% | 2680 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 86% | 49,066 psi | 89% | 2720 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 86% | 49,124 psi | 89% | 2720 fps | 99.1% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 47,195 psi | 85% | 2628 fps | 98.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 47,239 psi | 85% | 2631 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 48,022 psi | 87% | 2762 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 48,022 psi | 87% | 2766 fps | 97.8% |
| Somchem S355 | <<locked>> | 82% | 49,966 psi | 90% | 2710 fps | 100% |
| Somchem S355 | <<locked>> | 82% | 50,009 psi | 90% | 2713 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 49,385 psi | 89% | 2703 fps | 95.9% |
| Somchem S361 | <<locked>> | 90% | 49,385 psi | 89% | 2707 fps | 96% |
| Somchem S365 | <<locked>> | 88% | 47,224 psi | 85% | 2743 fps | 100% |
| Somchem S365 | <<locked>> | 88% | 47,297 psi | 86% | 2746 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 49,182 psi | 89% | 2749 fps | 98.7% |
| Somchem S385 | <<locked>> | 92% | 49,211 psi | 89% | 2753 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 82% | 47,805 psi | 87% | 2638 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 47,877 psi | 87% | 2638 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 49,559 psi | 90% | 2733 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 49,603 psi | 90% | 2733 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 48,225 psi | 87% | 2723 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 96% | 48,646 psi | 88% | 2730 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 86% | 48,631 psi | 88% | 2733 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 49,023 psi | 89% | 2743 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 94% | 49,850 psi | 90% | 2802 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 49,893 psi | 90% | 2805 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 49,763 psi | 90% | 2851 fps | 96.5% |
| Vihtavuori N560 | <<locked>> | 94% | 49,763 psi | 90% | 2854 fps | 96.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 48,878 psi | 88% | 2825 fps | 96.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 48,907 psi | 89% | 2825 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 48,849 psi | 88% | 2700 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 48,892 psi | 88% | 2700 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 47,500 psi | 86% | 2746 fps | 98.8% |
| Winchester 760 | <<locked>> | 84% | 47,572 psi | 86% | 2746 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,647 psi | 90% | 2946 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 46,122 psi | 83% | 2894 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 48,689 psi | 88% | 2736 fps | 97.7% |
| Winchester Supreme 780 | <<locked>> | 94% | 48,704 psi | 88% | 2736 fps | 97.7% |
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% | 31,372 psi | 57% | 2382 fps | 95.3% |
| Accurate 3100 | <<locked>> | 82% | 31,430 psi | 57% | 2385 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 39,769 psi | 72% | 2585 fps | 99.2% |
| Accurate 4350 | <<locked>> | 80% | 39,856 psi | 72% | 2589 fps | 99.3% |
| Accurate High Country | 42.8 gr | 90% | 44,599 psi | 81% | 2772 fps | 95.9% |
| Accurate High Country | 41.9 gr | 88% | 41,785 psi | 76% | 2717 fps | 95% |
| ADI AR 2209 | <<locked>> | 86% | 40,843 psi | 74% | 2621 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 86% | 40,901 psi | 74% | 2625 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 92% | 44,440 psi | 80% | 2723 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 92% | 44,454 psi | 80% | 2723 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 98% | 35,041 psi | 63% | 2562 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 98% | 35,085 psi | 63% | 2562 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 38,508 psi | 70% | 2569 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,334 psi | 69% | 2592 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,421 psi | 70% | 2595 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,540 psi | 79% | 2710 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,947 psi | 80% | 2717 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 40,596 psi | 73% | 2618 fps | 95.7% |
| Alliant Reloder-19 | <<locked>> | 86% | 40,654 psi | 74% | 2618 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,174 psi | 69% | 2605 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,493 psi | 70% | 2615 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,340 psi | 51% | 2359 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,384 psi | 51% | 2362 fps | 97.8% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,095 psi | 54% | 2421 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,139 psi | 55% | 2425 fps | 95.2% |
| Alliant Reloder-26 | 39.2 gr | 80% | 30,269 psi | 55% | 2467 fps | 96.3% |
| Alliant Reloder-26 | 39.2 gr | 80% | 30,327 psi | 55% | 2470 fps | 96.3% |
| Bofors RP15 | <<locked>> | 92% | 40,495 psi | 73% | 2657 fps | 95.7% |
| Bofors RP15 | <<locked>> | 92% | 40,524 psi | 73% | 2657 fps | 95.7% |
| Bofors RP5 | <<locked>> | 88% | 38,174 psi | 69% | 2605 fps | 95% |
| Bofors RP5 | <<locked>> | 88% | 38,493 psi | 70% | 2615 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 43,395 psi | 79% | 2595 fps | 97.5% |
| Bofors RP7 | <<locked>> | 80% | 43,439 psi | 79% | 2595 fps | 97.5% |
| Hodgdon H1000 | <<locked>> | 98% | 43,526 psi | 79% | 2697 fps | 95.9% |
| Hodgdon H1000 | <<locked>> | 98% | 43,497 psi | 79% | 2697 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 41,452 psi | 75% | 2628 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 80% | 41,524 psi | 75% | 2631 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 44,179 psi | 80% | 2644 fps | 97% |
| Hodgdon H4350 | <<locked>> | 80% | 44,527 psi | 81% | 2651 fps | 97.1% |
| Hodgdon H4831 SC | <<locked>> | 92% | 46,630 psi | 84% | 2713 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 46,644 psi | 84% | 2713 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,056 psi | 65% | 2487 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,114 psi | 65% | 2490 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 37,681 psi | 68% | 2664 fps | 95.2% |
| Hodgdon Retumbo | <<locked>> | 94% | 37,971 psi | 69% | 2674 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 40,364 psi | 73% | 2641 fps | 97% |
| Hodgdon Superformance | <<locked>> | 80% | 40,408 psi | 73% | 2641 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 49% | 1558 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 50% | 1562 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,044 psi | 71% | 2526 fps | 96.4% |
| IMR 4350 | <<locked>> | 80% | 39,131 psi | 71% | 2526 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,657 psi | 81% | 2621 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,730 psi | 81% | 2621 fps | 98.2% |
| IMR 4831 | <<locked>> | 80% | 37,942 psi | 69% | 2533 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 38,000 psi | 69% | 2536 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,340 psi | 84% | 2671 fps | 95.4% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,383 psi | 84% | 2674 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 94% | 45,266 psi | 82% | 2753 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 94% | 45,295 psi | 82% | 2756 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 42,395 psi | 77% | 2575 fps | 98.8% |
| Lovex S065 | <<locked>> | 80% | 42,438 psi | 77% | 2575 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 40,654 psi | 74% | 2559 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 40,683 psi | 74% | 2562 fps | 97.6% |
| Lovex S071 | <<locked>> | 86% | 30,661 psi | 55% | 2365 fps | 95% |
| Lovex S071 | <<locked>> | 86% | 30,719 psi | 56% | 2365 fps | 95.1% |
| Norma 204 | <<locked>> | 82% | 41,191 psi | 75% | 2608 fps | 95.7% |
| Norma 204 | <<locked>> | 82% | 41,263 psi | 75% | 2612 fps | 95.7% |
| Norma MRP | <<locked>> | 84% | 34,882 psi | 63% | 2559 fps | 95.4% |
| Norma MRP | <<locked>> | 84% | 35,172 psi | 64% | 2566 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 39,378 psi | 71% | 2579 fps | 99.1% |
| Norma URP | <<locked>> | 80% | 39,436 psi | 71% | 2582 fps | 99.1% |
| Ramshot Grand | <<locked>> | 92% | 42,177 psi | 76% | 2700 fps | 95% |
| Ramshot Grand | <<locked>> | 92% | 42,192 psi | 76% | 2703 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 37,956 psi | 69% | 2562 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 80% | 38,276 psi | 69% | 2569 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 37,304 psi | 68% | 2575 fps | 95.5% |
| Ramshot Magnum | <<locked>> | 92% | 37,594 psi | 68% | 2585 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,978 psi | 51% | 1598 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,876 psi | 50% | 1598 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,238 psi | 84% | 2756 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,688 psi | 84% | 2766 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,392 psi | 71% | 2602 fps | 99% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,479 psi | 71% | 2605 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,956 psi | 69% | 2608 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,290 psi | 69% | 2615 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,737 psi | 63% | 2585 fps | 95.1% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,737 psi | 63% | 2589 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 46,760 psi | 85% | 2664 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,847 psi | 85% | 2664 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 45,020 psi | 81% | 2654 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 86% | 42,583 psi | 77% | 2608 fps | 95% |
| Rottweil R 905 | <<locked>> | 86% | 39,697 psi | 72% | 2598 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 86% | 39,769 psi | 72% | 2602 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 43,395 psi | 79% | 2595 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 80% | 43,439 psi | 79% | 2595 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,395 psi | 77% | 2575 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,438 psi | 77% | 2575 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 80% | 40,654 psi | 74% | 2559 fps | 97.6% |
| Shooters World SW4350 | <<locked>> | 80% | 40,683 psi | 74% | 2562 fps | 97.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,263 psi | 75% | 2516 fps | 97.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,611 psi | 75% | 2523 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,378 psi | 71% | 2595 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,407 psi | 71% | 2595 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 46,891 psi | 85% | 2661 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 46,963 psi | 85% | 2661 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,122 psi | 83% | 2648 fps | 95.1% |
| Somchem S361 | <<locked>> | 88% | 46,137 psi | 83% | 2648 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 35,911 psi | 65% | 2536 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 35,969 psi | 65% | 2539 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,462 psi | 64% | 2474 fps | 95.1% |
| Somchem S385 | <<locked>> | 82% | 35,491 psi | 64% | 2477 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 44,802 psi | 81% | 2589 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,904 psi | 81% | 2592 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,785 psi | 74% | 2575 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 40,857 psi | 74% | 2575 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 37,188 psi | 67% | 2510 fps | 95.3% |
| Vihtavuori N165 | <<locked>> | 88% | 37,231 psi | 67% | 2510 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 39,958 psi | 72% | 2572 fps | 99% |
| Vihtavuori N550 | <<locked>> | 80% | 40,306 psi | 73% | 2579 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 31,256 psi | 57% | 2428 fps | 97.7% |
| Vihtavuori N555 | <<locked>> | 80% | 31,604 psi | 57% | 2438 fps | 97.8% |
| Vihtavuori N560 | <<locked>> | 92% | 46,325 psi | 84% | 2789 fps | 95.5% |
| Vihtavuori N560 | <<locked>> | 92% | 46,673 psi | 84% | 2795 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 98% | 45,440 psi | 82% | 2762 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 98% | 45,788 psi | 83% | 2769 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,624 psi | 72% | 2539 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,914 psi | 72% | 2546 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,452 psi | 75% | 2628 fps | 97.6% |
| Winchester 760 | <<locked>> | 80% | 41,829 psi | 76% | 2638 fps | 97.7% |
| Winchester StaBALL HD | 37.7 gr | 80% | 24,918 psi | 45% | 2333 fps | 96.8% |
| Winchester StaBALL HD | 37.7 gr | 80% | 25,121 psi | 45% | 2343 fps | 97% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,566 psi | 72% | 2562 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,595 psi | 72% | 2566 fps | 95.4% |
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 133 powders for .243 Ackley Improved loaded with the .243 | 115gr | Berger VLD Target. Winchester StaBALL HD delivers the highest muzzle velocity at 2,946 fps; across all powders the maximum-charge window runs from 1,745 fps to 2,946 fps. ADI AR 2225 gives the best case fill at 100 %, and 133 of the 133 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (381 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 115.0 gr projectile in 0.243" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, ADI AR 2225, Alliant Reloder-25 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, Winchester StaBALL HD rank at the top here: for .243 Ackley Improved with the .243 | 115gr | Berger VLD 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.