Load Specifications
Bullet:.243 | 95gr | Barnes LRX BT
Bullet Manufacturer:Barnes
Bullet Weight:95 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Caliber:.243 WSSM load data
Case Length (l3):1.663"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:53.9 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:7.5
Load data in caliber .243 WSSM with .243 | 95gr | Barnes LRX BT bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Winchester 760.
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 2015 | <<locked>> | 84% | 56,797 psi | 89% | 2949 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,593 psi | 87% | 2972 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,056 psi | 85% | 2995 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,114 psi | 86% | 2982 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,047 psi | 67% | 2864 fps | 96.6% |
| Accurate 4064 | <<locked>> | 90% | 55,593 psi | 87% | 3022 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,623 psi | 89% | 3123 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 56,420 psi | 88% | 3068 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,479 psi | 90% | 3064 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,158 psi | 86% | 3009 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,202 psi | 88% | 2979 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,420 psi | 88% | 3192 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,566 psi | 90% | 3084 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,418 psi | 85% | 3054 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,566 psi | 90% | 3186 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,201 psi | 87% | 3163 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,133 psi | 64% | 2900 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,557 psi | 73% | 3081 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,405 psi | 88% | 3081 fps | 99.8% |
| Bofors RP3 | <<locked>> | 90% | 54,534 psi | 85% | 3045 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,795 psi | 86% | 3018 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,594 psi | 89% | 2989 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,839 psi | 86% | 3041 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,855 psi | 89% | 3146 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,376 psi | 87% | 3061 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 96% | 55,724 psi | 87% | 3120 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 94% | 56,188 psi | 88% | 3081 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 86% | 57,014 psi | 89% | 3074 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,766 psi | 84% | 3048 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,666 psi | 89% | 3107 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,362 psi | 88% | 3159 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,636 psi | 56% | 1883 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,447 psi | 85% | 3022 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,014 psi | 89% | 3051 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,072 psi | 89% | 3051 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,724 psi | 89% | 3025 fps | 98.3% |
| IMR 4350 | <<locked>> | 98% | 55,158 psi | 86% | 3045 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,521 psi | 89% | 3051 fps | 98.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,768 psi | 89% | 3110 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 55,840 psi | 88% | 3087 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,158 psi | 86% | 3009 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,188 psi | 88% | 3035 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,825 psi | 87% | 2989 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 56,478 psi | 89% | 3038 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,072 psi | 88% | 3045 fps | 99.1% |
| Lovex S070 | <<locked>> | 98% | 57,159 psi | 90% | 3084 fps | 98.5% |
| Norma 201 | <<locked>> | 86% | 54,969 psi | 86% | 3005 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,680 psi | 87% | 3009 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,363 psi | 90% | 3097 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,927 psi | 88% | 3100 fps | 96.5% |
| Norma MRPᴾ | <<locked>> | 100% | 46,180 psi | 72% | 3028 fps | 96.2% |
| Norma URP | <<locked>> | 98% | 55,361 psi | 87% | 3107 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 54,447 psi | 85% | 3068 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,056 psi | 85% | 3100 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 55,332 psi | 87% | 3028 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,274 psi | 87% | 3048 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,912 psi | 88% | 3009 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,824 psi | 56% | 1923 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,014 psi | 88% | 3048 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,288 psi | 87% | 3130 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,926 psi | 86% | 3163 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,420 psi | 88% | 3146 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,680 psi | 87% | 3176 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 84% | 55,521 psi | 87% | 2982 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,477 psi | 87% | 3002 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,375 psi | 85% | 3038 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 54,795 psi | 86% | 3018 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,072 psi | 88% | 3045 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,188 psi | 88% | 3035 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,478 psi | 89% | 3038 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,159 psi | 90% | 3084 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,739 psi | 89% | 3110 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 53,737 psi | 84% | 3002 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,853 psi | 86% | 3035 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,101 psi | 88% | 2936 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,811 psi | 89% | 2936 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,463 psi | 88% | 2995 fps | 98.2% |
| Somchem S321 | <<locked>> | 82% | 56,347 psi | 88% | 3041 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,854 psi | 88% | 2936 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,464 psi | 90% | 3054 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 54,810 psi | 86% | 3038 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,621 psi | 84% | 3110 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,574 psi | 78% | 2982 fps | 96.5% |
| Vihtavuori N130 | <<locked>> | 82% | 55,854 psi | 88% | 2897 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,478 psi | 89% | 2920 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,448 psi | 87% | 2966 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,086 psi | 88% | 2982 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,478 psi | 89% | 3015 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,302 psi | 85% | 3048 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 55,709 psi | 87% | 3009 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,520 psi | 85% | 2979 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,029 psi | 89% | 3110 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,469 psi | 71% | 2982 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,331 psi | 85% | 3022 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,912 psi | 88% | 3061 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,724 psi | 87% | 3120 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,651 psi | 57% | 2904 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,781 psi | 86% | 3041 fps | 100% |
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 2015 | <<locked>> | 80% | 50,270 psi | 79% | 2854 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,424 psi | 66% | 2766 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,459 psi | 79% | 2940 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,078 psi | 71% | 2802 fps | 95% |
| Accurate 3100 | <<locked>> | 98% | 40,292 psi | 63% | 2808 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 40,176 psi | 63% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 34,214 psi | 54% | 2690 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 46,470 psi | 73% | 2894 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 39,537 psi | 62% | 2736 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,646 psi | 76% | 2904 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,023 psi | 77% | 2881 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,380 psi | 66% | 2927 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,088 psi | 61% | 2753 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,076 psi | 66% | 2825 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 34,548 psi | 54% | 2713 fps | 95.8% |
| Alliant Reloder-17 | 36.3 gr | 80% | 33,910 psi | 53% | 2723 fps | 97.4% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,646 psi | 46% | 2598 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 94% | 37,289 psi | 58% | 2867 fps | 96.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,861 psi | 72% | 2900 fps | 98.8% |
| Bofors RP3 | <<locked>> | 80% | 38,595 psi | 60% | 2753 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 45,063 psi | 71% | 2844 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,966 psi | 78% | 2884 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,558 psi | 75% | 2923 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,069 psi | 83% | 3087 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 80% | 39,508 psi | 62% | 2759 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 42,250 psi | 66% | 2871 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 90% | 49,139 psi | 77% | 2959 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 46,963 psi | 74% | 2907 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 29,573 psi | 46% | 2539 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,004 psi | 67% | 2874 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 90% | 45,092 psi | 71% | 2953 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,237 psi | 41% | 1677 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,121 psi | 71% | 2858 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 46,731 psi | 73% | 2897 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,495 psi | 65% | 2772 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,830 psi | 69% | 2792 fps | 95.6% |
| IMR 4350 | <<locked>> | 92% | 45,455 psi | 71% | 2874 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 44,077 psi | 69% | 2825 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 33,301 psi | 52% | 2648 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 43,163 psi | 68% | 2858 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 48,646 psi | 76% | 2904 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,600 psi | 71% | 2867 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,122 psi | 72% | 2825 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 41,133 psi | 64% | 2769 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 38,334 psi | 60% | 2707 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 41,408 psi | 65% | 2795 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 45,179 psi | 71% | 2838 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 45,730 psi | 72% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,437 psi | 65% | 2812 fps | 98.8% |
| Norma 204 | <<locked>> | 96% | 52,141 psi | 82% | 3035 fps | 95.7% |
| Norma MRP | <<locked>> | 98% | 43,062 psi | 67% | 2963 fps | 95.2% |
| Norma URP | <<locked>> | 84% | 34,577 psi | 54% | 2694 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 41,104 psi | 64% | 2825 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 88% | 38,740 psi | 61% | 2799 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 48,631 psi | 76% | 2913 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,080 psi | 75% | 2930 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,373 psi | 82% | 2953 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,789 psi | 42% | 1722 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,132 psi | 63% | 2749 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,672 psi | 70% | 2940 fps | 98.9% |
| ReloadSwiss RS 60 | 36.3 gr | 80% | 36,143 psi | 57% | 2795 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 33,982 psi | 53% | 2707 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 36,593 psi | 57% | 2779 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 48,907 psi | 77% | 2877 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,917 psi | 67% | 2785 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 36,405 psi | 57% | 2697 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 45,063 psi | 71% | 2844 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,334 psi | 60% | 2707 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,600 psi | 71% | 2867 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,133 psi | 64% | 2769 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 41,408 psi | 65% | 2795 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,608 psi | 59% | 2753 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,876 psi | 73% | 2884 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,933 psi | 70% | 2861 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,644 psi | 73% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,899 psi | 61% | 2648 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 43,134 psi | 68% | 2762 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 52,707 psi | 83% | 2986 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,137 psi | 72% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,673 psi | 73% | 2881 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 37,130 psi | 58% | 2703 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 26,977 psi | 42% | 2516 fps | 95.8% |
| Somchem S385 | <<locked>> | 98% | 46,209 psi | 72% | 2920 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 52,591 psi | 82% | 2851 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,094 psi | 74% | 2782 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,757 psi | 67% | 2769 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,381 psi | 68% | 2779 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,462 psi | 56% | 2638 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 33,663 psi | 53% | 2638 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 48,501 psi | 76% | 2894 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,713 psi | 65% | 2762 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 35,621 psi | 56% | 2697 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 90% | 32,097 psi | 50% | 2680 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,386 psi | 49% | 2556 fps | 96.6% |
| Winchester 748 | <<locked>> | 80% | 48,733 psi | 76% | 2946 fps | 100% |
| Winchester 760 | 39.1 gr | 88% | 42,569 psi | 67% | 2877 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 94% | 29,878 psi | 47% | 2684 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,686 psi | 70% | 2867 fps | 99.6% |
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 98 powders for .243 WSSM loaded with the .243 | 95gr | Barnes LRX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,192 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,192 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 95.0 gr projectile in 0.243" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-16, Alliant Reloder-23 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-17, ReloadSwiss RS 60, Winchester 760 rank at the top here: for .243 WSSM with the .243 | 95gr | Barnes LRX BT 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.