Load Specifications
Load data in caliber .243 Win. with .243 | 90gr | Barnes X S bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 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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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 2495 | <<locked>> | 82% | 54,070 psi | 90% | 2900 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,259 psi | 90% | 2927 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,808 psi | 86% | 2963 fps | 98.5% |
| Accurate 4064 | <<locked>> | 84% | 54,230 psi | 90% | 2949 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 53,795 psi | 89% | 3028 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 86% | 53,243 psi | 88% | 2959 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 98% | 54,418 psi | 90% | 3048 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 51,677 psi | 86% | 3068 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,056 psi | 90% | 2989 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,172 psi | 90% | 3005 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 53,780 psi | 89% | 3074 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 88% | 51,706 psi | 86% | 3054 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 53,592 psi | 89% | 3031 fps | 96.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,966 psi | 85% | 3031 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,341 psi | 80% | 2986 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,612 psi | 71% | 2887 fps | 97.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 51,314 psi | 85% | 3107 fps | 99.6% |
| Bofors RP3 | <<locked>> | 84% | 52,069 psi | 87% | 2959 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,966 psi | 85% | 3031 fps | 96.2% |
| Bofors RP7 | <<locked>> | 88% | 51,343 psi | 85% | 2920 fps | 97% |
| Hodgdon H380 | <<locked>> | 84% | 52,257 psi | 87% | 2963 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 90% | 52,170 psi | 87% | 3012 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 88% | 52,228 psi | 87% | 2972 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,143 psi | 90% | 2999 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 52,707 psi | 88% | 3002 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 52,025 psi | 86% | 3035 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,230 psi | 60% | 1916 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 53,476 psi | 89% | 2969 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 52,649 psi | 87% | 2943 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 52,141 psi | 87% | 2913 fps | 97.6% |
| IMR 4350 | <<locked>> | 92% | 51,648 psi | 86% | 2940 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 52,707 psi | 88% | 2949 fps | 97.7% |
| IMR 4831 | <<locked>> | 94% | 54,302 psi | 90% | 3018 fps | 99.8% |
| IMR 4895 | <<locked>> | 82% | 52,199 psi | 87% | 2986 fps | 99.9% |
| Lovex S060 | <<locked>> | 82% | 54,215 psi | 90% | 2933 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 53,359 psi | 89% | 2946 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 53,127 psi | 88% | 2953 fps | 98.9% |
| Lovex S070 | <<locked>> | 92% | 54,201 psi | 90% | 2986 fps | 98.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,555 psi | 72% | 2818 fps | 96.9% |
| Norma 203B | <<locked>> | 84% | 53,548 psi | 89% | 2995 fps | 100% |
| Norma 204 | <<locked>> | 92% | 52,170 psi | 87% | 2986 fps | 95.9% |
| Norma MRPᴾ | <<locked>> | 100% | 54,099 psi | 90% | 3120 fps | 98.2% |
| Norma URP | <<locked>> | 92% | 52,402 psi | 87% | 3009 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 84% | 54,070 psi | 90% | 3012 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 54,433 psi | 90% | 3054 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,912 psi | 61% | 1962 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 52,069 psi | 87% | 2936 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 51,010 psi | 85% | 3051 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 53,316 psi | 89% | 3041 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 51,764 psi | 86% | 3058 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 82% | 52,286 psi | 87% | 2913 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 51,866 psi | 86% | 2949 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 52,852 psi | 88% | 3022 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 88% | 51,343 psi | 85% | 2920 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 90% | 53,127 psi | 88% | 2953 fps | 98.9% |
| Shooters World Precision | <<locked>> | 84% | 53,359 psi | 89% | 2946 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,201 psi | 90% | 2986 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 52,750 psi | 88% | 2999 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 53,853 psi | 89% | 2976 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 52,576 psi | 87% | 2841 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 52,678 psi | 88% | 2894 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 52,359 psi | 87% | 3015 fps | 96.4% |
| Somchem S355 | <<locked>> | 86% | 51,895 psi | 86% | 2946 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 51,140 psi | 85% | 3015 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 53,896 psi | 90% | 3002 fps | 97.6% |
| Vihtavuori N135 | <<locked>> | 82% | 51,967 psi | 86% | 2877 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 52,127 psi | 87% | 2884 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 52,910 psi | 88% | 2920 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,244 psi | 90% | 2999 fps | 99.6% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,487 psi | 82% | 2910 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 84% | 54,172 psi | 90% | 2930 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 53,693 psi | 89% | 3005 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,259 psi | 90% | 3071 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,143 psi | 90% | 2966 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 52,170 psi | 87% | 3012 fps | 97.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,976 psi | 73% | 3028 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 53,983 psi | 90% | 2982 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,027 psi | 90% | 2989 fps | 96.5% |
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% | 51,126 psi | 85% | 2858 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,747 psi | 79% | 2815 fps | 95.8% |
| Accurate 3100 | <<locked>> | 90% | 37,536 psi | 62% | 2690 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 48,254 psi | 80% | 2858 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,318 psi | 60% | 2690 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 80% | 44,570 psi | 74% | 2805 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 96% | 51,111 psi | 85% | 2989 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,486 psi | 81% | 3012 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,237 psi | 75% | 2838 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,921 psi | 80% | 2900 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,244 psi | 59% | 2690 fps | 96.2% |
| Alliant Reloder-17 | 37.7 gr | 80% | 39,595 psi | 66% | 2822 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 94% | 47,326 psi | 79% | 2923 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 98% | 47,848 psi | 79% | 2976 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 84% | 29,849 psi | 50% | 2556 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 96% | 37,768 psi | 63% | 2772 fps | 95.5% |
| Alliant Reloder-26 | 42.5 gr | 88% | 36,550 psi | 61% | 2792 fps | 96.1% |
| Bofors RP3 | <<locked>> | 80% | 45,571 psi | 76% | 2848 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 47,848 psi | 79% | 2976 fps | 95.3% |
| Bofors RP7 | <<locked>> | 84% | 45,455 psi | 76% | 2812 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 45,832 psi | 76% | 2848 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 84% | 42,931 psi | 71% | 2838 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 86% | 49,110 psi | 82% | 2917 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,011 psi | 55% | 2595 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,153 psi | 82% | 2943 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 45,252 psi | 75% | 2907 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 45% | 1722 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,314 psi | 84% | 2913 fps | 99.9% |
| IMR 4064 | <<locked>> | 80% | 46,862 psi | 78% | 2841 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,095 psi | 82% | 2861 fps | 97% |
| IMR 4350 | <<locked>> | 88% | 45,745 psi | 76% | 2835 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 43,976 psi | 73% | 2785 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 34,940 psi | 58% | 2644 fps | 96% |
| IMR 4895 | <<locked>> | 80% | 49,110 psi | 82% | 2933 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 51,430 psi | 85% | 2887 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 47,485 psi | 79% | 2851 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,595 psi | 66% | 2694 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 42,525 psi | 71% | 2772 fps | 95.6% |
| Lovex S071 | <<locked>> | 96% | 38,595 psi | 64% | 2713 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 47,326 psi | 79% | 2887 fps | 99.6% |
| Norma 204 | <<locked>> | 90% | 48,950 psi | 81% | 2930 fps | 95.1% |
| Norma MRP | <<locked>> | 94% | 44,469 psi | 74% | 2940 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 36,013 psi | 60% | 2687 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 80% | 47,384 psi | 79% | 2904 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 39,682 psi | 66% | 2776 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,615 psi | 46% | 1762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,832 psi | 76% | 2825 fps | 96.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,887 psi | 70% | 2884 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,853 psi | 60% | 2703 fps | 95.9% |
| ReloadSwiss RS 70 | 39.2 gr | 82% | 37,231 psi | 62% | 2753 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 49,458 psi | 82% | 2867 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,236 psi | 72% | 2799 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 96% | 49,530 psi | 82% | 2966 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 84% | 45,455 psi | 76% | 2812 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,595 psi | 66% | 2694 fps | 95.9% |
| Shooters World Precision | <<locked>> | 80% | 47,485 psi | 79% | 2851 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 42,525 psi | 71% | 2772 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,482 psi | 72% | 2835 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,705 psi | 84% | 2927 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,092 psi | 73% | 2710 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 41,104 psi | 68% | 2680 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 49,066 psi | 82% | 2956 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 43,497 psi | 72% | 2795 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 32,503 psi | 54% | 2641 fps | 98.3% |
| Somchem S385 | <<locked>> | 92% | 44,759 psi | 74% | 2841 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 49,095 psi | 82% | 2835 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,356 psi | 82% | 2841 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,423 psi | 69% | 2723 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 37,101 psi | 62% | 2677 fps | 96.5% |
| Vihtavuori N165 | <<locked>> | 98% | 46,499 psi | 77% | 2854 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 47,645 psi | 79% | 2831 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,912 psi | 61% | 2684 fps | 96.2% |
| Vihtavuori N555 | <<locked>> | 84% | 32,663 psi | 54% | 2641 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,680 psi | 61% | 2651 fps | 98.5% |
| Winchester 760 | <<locked>> | 84% | 43,265 psi | 72% | 2844 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 86% | 28,529 psi | 47% | 2585 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,763 psi | 84% | 2933 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 50,212 psi | 83% | 2927 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 94 powders for .243 Win. loaded with the .243 | 90gr | Barnes X S. Norma MRP delivers the highest muzzle velocity at 3,120 fps; across all powders the maximum-charge window runs from 1,916 fps to 3,120 fps. Accurate 3100 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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 70, Alliant Reloder-26, Alliant Reloder-17 rank at the top here: for .243 Win. with the .243 | 90gr | Barnes X S they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.