Load Specifications
Load data in caliber .243 Win. with .243 | 100gr | Norma FMJ bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP 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>> | 82% | 54,244 psi | 90% | 2789 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 51,880 psi | 86% | 2792 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,403 psi | 89% | 2884 fps | 99.5% |
| Accurate 4064 | <<locked>> | 82% | 51,256 psi | 85% | 2795 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 51,532 psi | 86% | 2884 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 84% | 51,488 psi | 86% | 2825 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 52,765 psi | 88% | 2920 fps | 97.5% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,288 psi | 90% | 2969 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 53,693 psi | 89% | 2986 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,084 psi | 88% | 2923 fps | 97.7% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,084 psi | 88% | 2923 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 52,156 psi | 87% | 2844 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 52,257 psi | 87% | 2864 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 52,301 psi | 87% | 2940 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 53,693 psi | 89% | 2966 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 52,373 psi | 87% | 2913 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,113 psi | 88% | 2966 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,995 psi | 83% | 2904 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,497 psi | 72% | 2822 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,621 psi | 89% | 3035 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,588 psi | 81% | 2887 fps | 96.8% |
| Bofors RP3 | <<locked>> | 84% | 52,721 psi | 88% | 2858 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,113 psi | 88% | 2966 fps | 97.9% |
| Bofors RP7 | <<locked>> | 88% | 52,446 psi | 87% | 2838 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 84% | 53,055 psi | 88% | 2871 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 90% | 53,954 psi | 90% | 2933 fps | 99% |
| Hodgdon H4350 | <<locked>> | 88% | 53,519 psi | 89% | 2890 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 98% | 54,143 psi | 90% | 2910 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 52,591 psi | 87% | 2864 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,114 psi | 90% | 2907 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,215 psi | 90% | 2966 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,361 psi | 60% | 1837 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,215 psi | 90% | 2858 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,113 psi | 88% | 2828 fps | 98.8% |
| IMR 4350 | <<locked>> | 92% | 53,258 psi | 88% | 2867 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 53,867 psi | 89% | 2864 fps | 98.8% |
| IMR 4831 | <<locked>> | 92% | 52,359 psi | 87% | 2881 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 53,621 psi | 89% | 2894 fps | 100% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,663 psi | 86% | 2936 fps | 96.1% |
| Lovex S062 | <<locked>> | 84% | 54,085 psi | 90% | 2848 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 53,911 psi | 90% | 2861 fps | 99.6% |
| Lovex S070 | <<locked>> | 90% | 52,011 psi | 86% | 2851 fps | 98.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,121 psi | 73% | 2733 fps | 98.1% |
| Norma 203B | <<locked>> | 82% | 51,561 psi | 86% | 2851 fps | 100% |
| Norma 204 | <<locked>> | 92% | 53,969 psi | 90% | 2917 fps | 97.6% |
| Norma MRP | <<locked>> | 98% | 52,576 psi | 87% | 2989 fps | 98.9% |
| Norma URP | <<locked>> | 92% | 54,085 psi | 90% | 2927 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 52,025 psi | 86% | 2871 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,025 psi | 86% | 2949 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 92% | 52,881 psi | 88% | 2920 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,311 psi | 77% | 2822 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,999 psi | 61% | 1883 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,011 psi | 88% | 2851 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 52,982 psi | 88% | 2959 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 51,590 psi | 86% | 2904 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 53,940 psi | 90% | 2989 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,583 psi | 71% | 2835 fps | 97% |
| Rottweil R 902 | <<locked>> | 82% | 52,750 psi | 88% | 2812 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 52,924 psi | 88% | 2854 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,404 psi | 90% | 2890 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 96% | 51,256 psi | 85% | 2890 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 88% | 52,446 psi | 87% | 2838 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 53,911 psi | 90% | 2861 fps | 99.6% |
| Shooters World Precision | <<locked>> | 84% | 54,085 psi | 90% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 52,011 psi | 86% | 2851 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 50,778 psi | 84% | 2854 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,041 psi | 90% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 53,693 psi | 89% | 2812 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,288 psi | 90% | 2943 fps | 98% |
| Somchem S355 | <<locked>> | 86% | 52,692 psi | 88% | 2848 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 53,171 psi | 88% | 2923 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 51,982 psi | 86% | 2871 fps | 98.3% |
| Vihtavuori N135 | <<locked>> | 82% | 52,895 psi | 88% | 2772 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,519 psi | 89% | 2789 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,259 psi | 90% | 2825 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 52,518 psi | 87% | 2864 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,445 psi | 85% | 2844 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 82% | 51,779 psi | 86% | 2782 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 51,793 psi | 86% | 2871 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 98% | 52,373 psi | 87% | 2930 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,924 psi | 88% | 2976 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 52,112 psi | 87% | 2828 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 53,954 psi | 90% | 2933 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,382 psi | 75% | 2959 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 52,199 psi | 87% | 2864 fps | 97.4% |
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% | 50,749 psi | 84% | 2743 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,356 psi | 80% | 2733 fps | 97.3% |
| Accurate 3100 | <<locked>> | 88% | 35,157 psi | 58% | 2549 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 48,051 psi | 80% | 2746 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,492 psi | 61% | 2605 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 80% | 45,353 psi | 75% | 2720 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 90% | 43,366 psi | 72% | 2749 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 98% | 50,792 psi | 84% | 2907 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,864 psi | 83% | 2927 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 43,366 psi | 72% | 2746 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 43,366 psi | 72% | 2746 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,861 psi | 76% | 2746 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,008 psi | 81% | 2815 fps | 99.9% |
| Alliant Reloder-16 | 35.5 gr | 80% | 35,534 psi | 59% | 2612 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,205 psi | 67% | 2736 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,873 psi | 71% | 2740 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,221 psi | 72% | 2789 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,107 psi | 43% | 2362 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,678 psi | 56% | 2589 fps | 95.4% |
| Alliant Reloder-26 | 41.2 gr | 84% | 32,140 psi | 53% | 2592 fps | 95.7% |
| Bofors RP15 | <<locked>> | 96% | 42,627 psi | 71% | 2772 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 46,195 psi | 77% | 2756 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,221 psi | 72% | 2789 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 40,611 psi | 67% | 2621 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 46,644 psi | 77% | 2766 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 80% | 38,377 psi | 64% | 2644 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 82% | 44,222 psi | 73% | 2726 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 96% | 50,676 psi | 84% | 2854 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,141 psi | 55% | 2510 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,734 psi | 84% | 2858 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 40,205 psi | 67% | 2710 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,079 psi | 45% | 1647 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,645 psi | 79% | 2753 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,893 psi | 83% | 2779 fps | 98.3% |
| IMR 4350 | <<locked>> | 84% | 41,379 psi | 69% | 2654 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,916 psi | 70% | 2651 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 34,969 psi | 58% | 2552 fps | 97.3% |
| IMR 4895 | <<locked>> | 80% | 50,256 psi | 83% | 2841 fps | 100% |
| IMR 7828 SSC | <<locked>> | 98% | 48,327 psi | 80% | 2877 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 47,964 psi | 80% | 2753 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,610 psi | 66% | 2605 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 37,840 psi | 63% | 2582 fps | 95.5% |
| Lovex S071 | <<locked>> | 92% | 34,127 psi | 57% | 2526 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 48,414 psi | 80% | 2799 fps | 100% |
| Norma 204 | <<locked>> | 86% | 43,976 psi | 73% | 2743 fps | 95.2% |
| Norma MRP | 42.8 gr | 90% | 39,653 psi | 66% | 2743 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 36,347 psi | 60% | 2598 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 80% | 48,472 psi | 81% | 2812 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,182 psi | 80% | 2881 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 35,331 psi | 59% | 2582 fps | 95.4% |
| Ramshot Magnum | <<locked>> | 96% | 40,045 psi | 67% | 2697 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,441 psi | 46% | 1683 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,427 psi | 77% | 2740 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,714 psi | 71% | 2792 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,143 psi | 60% | 2615 fps | 97.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,215 psi | 59% | 2618 fps | 96.5% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,856 psi | 66% | 2769 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 49,835 psi | 83% | 2769 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,424 psi | 72% | 2700 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 47,776 psi | 79% | 2779 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 90% | 41,887 psi | 70% | 2720 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 40,611 psi | 67% | 2621 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,610 psi | 66% | 2605 fps | 97.2% |
| Shooters World Precision | <<locked>> | 80% | 47,964 psi | 80% | 2753 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,840 psi | 63% | 2582 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,628 psi | 74% | 2753 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,744 psi | 74% | 2615 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,624 psi | 64% | 2543 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 44,411 psi | 74% | 2772 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 43,787 psi | 73% | 2700 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 32,793 psi | 54% | 2556 fps | 99.3% |
| Somchem S385 | <<locked>> | 88% | 39,798 psi | 66% | 2648 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 49,893 psi | 83% | 2730 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,241 psi | 83% | 2743 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,829 psi | 69% | 2631 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,782 psi | 63% | 2598 fps | 97.9% |
| Vihtavuori N165 | <<locked>> | 94% | 41,858 psi | 70% | 2677 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 48,631 psi | 81% | 2736 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,318 psi | 62% | 2602 fps | 97.6% |
| Vihtavuori N555 | <<locked>> | 80% | 28,398 psi | 47% | 2434 fps | 95.2% |
| Vihtavuori N560 | <<locked>> | 96% | 49,574 psi | 82% | 2917 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,883 psi | 61% | 2566 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 38,638 psi | 64% | 2651 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,223 psi | 44% | 2441 fps | 95.9% |
| Winchester Supreme 780 | <<locked>> | 94% | 45,165 psi | 75% | 2746 fps | 95.8% |
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 85 powders for .243 Win. loaded with the .243 | 100gr | Norma FMJ. Alliant Reloder-26 delivers the highest muzzle velocity at 3,035 fps; across all powders the maximum-charge window runs from 1,837 fps to 3,035 fps. Accurate 3100 gives the best case fill at 100 %, and 85 of the 85 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 100.0 gr projectile in 0.243" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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, Norma MRP, Alliant Reloder-16 rank at the top here: for .243 Win. with the .243 | 100gr | Norma FMJ 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.