Load Specifications
Load data in caliber .243 Win. with .243 | 90gr | Speer Hot-Cor bullet and 91 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Ramshot Hunter.
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>> | 84% | 53,737 psi | 89% | 2920 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 52,344 psi | 87% | 2917 fps | 97.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,936 psi | 81% | 2933 fps | 98.2% |
| Accurate 4064 | <<locked>> | 86% | 54,056 psi | 90% | 2972 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 51,285 psi | 85% | 3005 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 53,650 psi | 89% | 3002 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 51,300 psi | 85% | 2946 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 98% | 52,765 psi | 88% | 3038 fps | 96.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,679 psi | 89% | 3120 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 52,518 psi | 87% | 3031 fps | 96.5% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 52,518 psi | 87% | 3031 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 52,054 psi | 86% | 2976 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 52,199 psi | 87% | 2995 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 51,880 psi | 86% | 3064 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,359 psi | 89% | 3097 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 51,779 psi | 86% | 3022 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,919 psi | 76% | 2963 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,437 psi | 67% | 2861 fps | 96.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,997 psi | 88% | 3153 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,388 psi | 89% | 3009 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 52,431 psi | 87% | 2986 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 52,489 psi | 87% | 2959 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 86% | 53,287 psi | 89% | 3002 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 92% | 53,766 psi | 89% | 3058 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 90% | 53,693 psi | 89% | 3015 fps | 97% |
| Hodgdon H4895 | <<locked>> | 82% | 54,273 psi | 90% | 3015 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 52,373 psi | 87% | 2992 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,186 psi | 90% | 3041 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 53,824 psi | 89% | 3081 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,955 psi | 60% | 1929 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 51,634 psi | 86% | 2959 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,433 psi | 90% | 2995 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,041 psi | 90% | 2982 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 53,838 psi | 89% | 2963 fps | 98.1% |
| IMR 4350 | <<locked>> | 94% | 52,997 psi | 88% | 2982 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 53,925 psi | 90% | 2989 fps | 98.1% |
| IMR 4831 | <<locked>> | 94% | 51,779 psi | 86% | 2999 fps | 99.6% |
| IMR 4895 | <<locked>> | 84% | 53,577 psi | 89% | 3028 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 53,693 psi | 89% | 2972 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 52,489 psi | 87% | 2923 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,172 psi | 90% | 2979 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 53,838 psi | 89% | 2986 fps | 99.1% |
| Lovex S070 | <<locked>> | 92% | 51,779 psi | 86% | 2969 fps | 98% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,408 psi | 67% | 2776 fps | 96.2% |
| Norma 201 | <<locked>> | 82% | 52,156 psi | 87% | 2943 fps | 100% |
| Norma 202 | <<locked>> | 82% | 52,736 psi | 88% | 2946 fps | 100% |
| Norma 203B | <<locked>> | 84% | 51,503 psi | 86% | 2982 fps | 99.9% |
| Norma 204 | <<locked>> | 94% | 53,896 psi | 90% | 3035 fps | 96.6% |
| Norma MRPᴾ | <<locked>> | 100% | 51,851 psi | 86% | 3100 fps | 98% |
| Norma URP | <<locked>> | 94% | 53,592 psi | 89% | 3048 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 84% | 52,069 psi | 87% | 3002 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 94% | 52,576 psi | 87% | 3041 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,521 psi | 61% | 1972 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,316 psi | 89% | 2979 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 52,692 psi | 88% | 3058 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 52,750 psi | 88% | 3094 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 51,068 psi | 85% | 3025 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,664 psi | 89% | 3110 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 84% | 52,953 psi | 88% | 2946 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 52,663 psi | 87% | 2982 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 50,894 psi | 85% | 3005 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 90% | 52,489 psi | 87% | 2959 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 53,838 psi | 89% | 2986 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 82% | 53,693 psi | 89% | 2972 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,172 psi | 90% | 2979 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 51,779 psi | 86% | 2969 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,114 psi | 90% | 3038 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 52,098 psi | 87% | 2966 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,243 psi | 88% | 2884 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,027 psi | 90% | 2881 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 53,708 psi | 89% | 2930 fps | 98.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,969 psi | 90% | 3061 fps | 97% |
| Somchem S335 | <<locked>> | 82% | 52,837 psi | 88% | 2877 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,375 psi | 90% | 2986 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 52,591 psi | 87% | 2979 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 52,547 psi | 87% | 3051 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 51,634 psi | 86% | 2982 fps | 97.3% |
| Vihtavuori N133 | <<locked>> | 82% | 53,635 psi | 89% | 2867 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 52,982 psi | 88% | 2913 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 53,664 psi | 89% | 2927 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,186 psi | 90% | 2956 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 52,489 psi | 87% | 2992 fps | 99.6% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,427 psi | 79% | 2894 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 84% | 51,779 psi | 86% | 2917 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 51,648 psi | 86% | 2992 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,285 psi | 85% | 3041 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 52,388 psi | 87% | 2959 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 53,766 psi | 89% | 3058 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,481 psi | 69% | 2995 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 52,040 psi | 86% | 2972 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,938 psi | 86% | 2972 fps | 96.3% |
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 2495 | <<locked>> | 80% | 47,079 psi | 78% | 2825 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,513 psi | 76% | 2795 fps | 95.5% |
| Accurate 3100 | <<locked>> | 92% | 37,144 psi | 62% | 2707 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 44,483 psi | 74% | 2822 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,330 psi | 55% | 2641 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 50,038 psi | 83% | 2946 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 42,699 psi | 71% | 2792 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 96% | 49,443 psi | 82% | 2979 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,369 psi | 77% | 2989 fps | 99.3% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 49,240 psi | 82% | 2972 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 49,240 psi | 82% | 2972 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,598 psi | 71% | 2812 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,643 psi | 76% | 2881 fps | 99.2% |
| Alliant Reloder-16 | 35.8 gr | 80% | 33,185 psi | 55% | 2657 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,275 psi | 62% | 2789 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 96% | 48,573 psi | 81% | 2966 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 86% | 29,167 psi | 48% | 2562 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 98% | 37,927 psi | 63% | 2799 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 88% | 33,823 psi | 56% | 2743 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,835 psi | 83% | 2949 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 42,714 psi | 71% | 2818 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 43,381 psi | 72% | 2792 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 43,279 psi | 72% | 2822 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 84% | 40,843 psi | 68% | 2815 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 86% | 47,007 psi | 78% | 2897 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 50,575 psi | 84% | 2956 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,501 psi | 51% | 2549 fps | 96.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,268 psi | 79% | 2933 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 43,323 psi | 72% | 2887 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,789 psi | 45% | 1729 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,457 psi | 81% | 2904 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 50,894 psi | 85% | 2946 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,875 psi | 75% | 2828 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,181 psi | 78% | 2848 fps | 96.7% |
| IMR 4350 | <<locked>> | 88% | 43,859 psi | 73% | 2818 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 82% | 42,061 psi | 70% | 2766 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 32,314 psi | 54% | 2602 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 46,804 psi | 78% | 2910 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 50,314 psi | 84% | 2923 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,342 psi | 82% | 2871 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 44,773 psi | 74% | 2825 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 36,898 psi | 61% | 2657 fps | 95.2% |
| Lovex S070 | <<locked>> | 84% | 40,190 psi | 67% | 2749 fps | 95.1% |
| Lovex S071 | <<locked>> | 98% | 38,014 psi | 63% | 2723 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 48,921 psi | 81% | 2894 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,487 psi | 82% | 2894 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,005 psi | 75% | 2867 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 50,082 psi | 83% | 2969 fps | 95.6% |
| Norma MRP | <<locked>> | 94% | 42,235 psi | 70% | 2913 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 33,402 psi | 55% | 2644 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 45,150 psi | 75% | 2881 fps | 99.4% |
| Ramshot Hunter | 40.8 gr | 86% | 40,045 psi | 67% | 2805 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 45% | 1768 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,569 psi | 72% | 2805 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,921 psi | 81% | 2995 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,624 psi | 66% | 2858 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,752 psi | 59% | 2720 fps | 96% |
| ReloadSwiss RS 70 | 40.1 gr | 82% | 35,157 psi | 58% | 2720 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 46,601 psi | 77% | 2841 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,132 psi | 67% | 2759 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 96% | 47,572 psi | 79% | 2946 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 84% | 43,381 psi | 72% | 2792 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,898 psi | 61% | 2657 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,314 psi | 84% | 2923 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,773 psi | 74% | 2825 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 40,190 psi | 67% | 2749 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,234 psi | 69% | 2812 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,588 psi | 81% | 2910 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,864 psi | 83% | 2835 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,887 psi | 70% | 2690 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 41,539 psi | 69% | 2713 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 47,181 psi | 78% | 2943 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 49,690 psi | 83% | 2831 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,705 psi | 84% | 2927 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 40,669 psi | 68% | 2762 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 30,008 psi | 50% | 2595 fps | 97.6% |
| Somchem S385 | <<locked>> | 94% | 44,991 psi | 75% | 2864 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 50,299 psi | 84% | 2822 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,427 psi | 77% | 2815 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,905 psi | 78% | 2825 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,783 psi | 64% | 2694 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 34,766 psi | 58% | 2644 fps | 95.8% |
| Vihtavuori N165 | <<locked>> | 98% | 44,396 psi | 74% | 2835 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 45,411 psi | 75% | 2815 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,389 psi | 57% | 2644 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 86% | 31,879 psi | 53% | 2641 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,432 psi | 57% | 2618 fps | 98% |
| Winchester 760 | <<locked>> | 84% | 40,843 psi | 68% | 2815 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 88% | 27,630 psi | 46% | 2579 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,486 psi | 81% | 2913 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 98% | 48,153 psi | 80% | 2910 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 91 powders for .243 Win. loaded with the .243 | 90gr | Speer Hot-Cor. Alliant Reloder-26 delivers the highest muzzle velocity at 3,153 fps; across all powders the maximum-charge window runs from 1,929 fps to 3,153 fps. Accurate 3100 gives the best case fill at 100 %, and 91 of the 91 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 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, 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-16, ReloadSwiss RS 70, Ramshot Hunter rank at the top here: for .243 Win. with the .243 | 90gr | Speer Hot-Cor 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.