Load Specifications
Load data in caliber .243 WSSM with .243 | 73gr | SUS-TAC HPT bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.
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>> | 86% | 54,650 psi | 86% | 3307 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,826 psi | 89% | 3383 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,478 psi | 89% | 3373 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,955 psi | 86% | 3389 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 56,289 psi | 88% | 3419 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 52,562 psi | 82% | 3422 fps | 97.9% |
| Accurate LT-30 | <<locked>> | 82% | 56,869 psi | 89% | 3297 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 57,261 psi | 90% | 3330 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 57,246 psi | 90% | 3455 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 94% | 54,926 psi | 86% | 3389 fps | 98.7% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,362 psi | 88% | 3406 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 88% | 56,753 psi | 89% | 3396 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,418 psi | 85% | 3474 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 57,421 psi | 90% | 3583 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 54,447 psi | 85% | 3412 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 84% | 57,479 psi | 90% | 3369 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 55,143 psi | 86% | 3435 fps | 98.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,879 psi | 80% | 3422 fps | 97.9% |
| Alliant Reloder-17 | <<locked>> | 98% | 55,825 psi | 87% | 3543 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,376 psi | 88% | 3281 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 57,725 psi | 90% | 3468 fps | 98.8% |
| Bofors RP3 | <<locked>> | 94% | 55,230 psi | 87% | 3428 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,839 psi | 86% | 3337 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,753 psi | 87% | 3432 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 86% | 57,682 psi | 90% | 3543 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 84% | 56,797 psi | 89% | 3412 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,433 psi | 85% | 3376 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 56,637 psi | 89% | 3442 fps | 98.1% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 55,898 psi | 88% | 3478 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 88% | 54,288 psi | 85% | 3409 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,949 psi | 74% | 3281 fps | 98.4% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 57,290 psi | 90% | 3501 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,911 psi | 55% | 2146 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,796 psi | 87% | 3415 fps | 99.5% |
| IMR 3031 | <<locked>> | 90% | 57,290 psi | 90% | 3461 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 54,331 psi | 85% | 3369 fps | 98.8% |
| IMR 4198 | <<locked>> | 84% | 57,348 psi | 90% | 3330 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 57,580 psi | 90% | 3419 fps | 96% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,777 psi | 78% | 3346 fps | 97.5% |
| IMR 4895 | <<locked>> | 92% | 56,536 psi | 89% | 3474 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 88% | 56,362 psi | 88% | 3406 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 84% | 56,927 psi | 89% | 3392 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 57,174 psi | 90% | 3432 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 57,014 psi | 89% | 3376 fps | 99.4% |
| Lovex S062 | <<locked>> | 94% | 57,537 psi | 90% | 3432 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,826 psi | 89% | 3409 fps | 97.4% |
| Norma 201 | <<locked>> | 90% | 55,854 psi | 88% | 3396 fps | 99.8% |
| Norma 202 | <<locked>> | 90% | 56,710 psi | 89% | 3409 fps | 100% |
| Norma 203B | <<locked>> | 92% | 54,317 psi | 85% | 3419 fps | 99.1% |
| Norma URPᴾ | <<locked>> | 100% | 51,793 psi | 81% | 3409 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 92% | 55,274 psi | 87% | 3448 fps | 99.1% |
| Ramshot TAC | <<locked>> | 88% | 57,334 psi | 90% | 3419 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 88% | 56,652 psi | 89% | 3442 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 86% | 57,580 psi | 90% | 3402 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,288 psi | 55% | 2195 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,796 psi | 87% | 3392 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 57,174 psi | 90% | 3415 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,709 psi | 87% | 3514 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,405 psi | 87% | 3550 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,446 psi | 82% | 3438 fps | 97.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,866 psi | 83% | 3465 fps | 97.2% |
| Rottweil R 901 | <<locked>> | 88% | 56,811 psi | 89% | 3389 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,304 psi | 88% | 3392 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 96% | 55,071 psi | 86% | 3419 fps | 99.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,826 psi | 89% | 3409 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 90% | 57,174 psi | 90% | 3432 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 57,537 psi | 90% | 3432 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,593 psi | 87% | 3353 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 57,101 psi | 89% | 3488 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,824 psi | 86% | 3343 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,230 psi | 87% | 3383 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,970 psi | 88% | 3422 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,157 psi | 85% | 3284 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,288 psi | 85% | 3278 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 54,259 psi | 85% | 3379 fps | 99.8% |
| Somchem S335 | <<locked>> | 90% | 56,869 psi | 89% | 3333 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,998 psi | 86% | 3379 fps | 99.1% |
| Somchem S355 | <<locked>> | 96% | 55,376 psi | 87% | 3415 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,137 psi | 72% | 3343 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 86% | 57,508 psi | 90% | 3310 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,230 psi | 85% | 3271 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,970 psi | 88% | 3366 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 57,217 psi | 90% | 3379 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 57,217 psi | 90% | 3396 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,549 psi | 85% | 3412 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 88% | 56,869 psi | 89% | 3406 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 55,608 psi | 87% | 3373 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,708 psi | 84% | 3412 fps | 97.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,767 psi | 87% | 3392 fps | 99.7% |
| Winchester 748 | <<locked>> | 88% | 56,826 psi | 89% | 3461 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,898 psi | 88% | 3478 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,912 psi | 88% | 3432 fps | 99.6% |
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% | 45,281 psi | 71% | 3143 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,617 psi | 78% | 3261 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,942 psi | 59% | 3031 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,512 psi | 70% | 3196 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 35,839 psi | 56% | 3005 fps | 98.8% |
| Accurate 4350 | <<locked>> | 94% | 42,554 psi | 67% | 3215 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 53,345 psi | 84% | 3241 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,722 psi | 84% | 3271 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,756 psi | 65% | 3140 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 40,292 psi | 63% | 3084 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,787 psi | 69% | 3163 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 80% | 43,381 psi | 68% | 3173 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,937 psi | 80% | 3406 fps | 99% |
| Alliant Power Pro 2000-MR | 40.9 gr | 84% | 43,410 psi | 68% | 3287 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,838 psi | 55% | 2979 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,908 psi | 80% | 3264 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 40,045 psi | 63% | 3117 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 41,989 psi | 66% | 3222 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 86% | 36,825 psi | 58% | 3114 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,765 psi | 83% | 3222 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,683 psi | 64% | 3123 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 34,374 psi | 54% | 2976 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,542 psi | 71% | 3159 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,235 psi | 66% | 3169 fps | 98.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,702 psi | 73% | 3333 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 80% | 49,806 psi | 78% | 3294 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,097 psi | 80% | 3317 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 43,062 psi | 67% | 3169 fps | 95% |
| Hodgdon H414 | <<locked>> | 98% | 51,982 psi | 81% | 3402 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 42,076 psi | 66% | 3156 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 36,303 psi | 57% | 3031 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,942 psi | 59% | 3100 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 41% | 1923 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,234 psi | 63% | 3094 fps | 96.7% |
| IMR 3031 | <<locked>> | 80% | 41,060 psi | 64% | 3163 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 39,624 psi | 62% | 3064 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 51,053 psi | 80% | 3228 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,114 psi | 85% | 3353 fps | 95.2% |
| IMR 4831 | <<locked>> | 94% | 40,770 psi | 64% | 3153 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 38,421 psi | 60% | 3091 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 43,787 psi | 69% | 3163 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 80% | 49,371 psi | 77% | 3261 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 40,553 psi | 64% | 3117 fps | 98.9% |
| Lovex S060 | <<locked>> | 80% | 42,032 psi | 66% | 3081 fps | 96.8% |
| Lovex S062 | <<locked>> | 80% | 37,028 psi | 58% | 3009 fps | 96.7% |
| Lovex S065 | <<locked>> | 94% | 47,050 psi | 74% | 3222 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 40,872 psi | 64% | 3091 fps | 97.7% |
| Norma 202 | <<locked>> | 80% | 41,060 psi | 64% | 3110 fps | 99.4% |
| Norma 203B | <<locked>> | 80% | 36,912 psi | 58% | 3038 fps | 95.1% |
| Norma URP | <<locked>> | 94% | 42,438 psi | 67% | 3209 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 82% | 38,914 psi | 61% | 3107 fps | 95.5% |
| Ramshot TAC | <<locked>> | 82% | 46,804 psi | 73% | 3212 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,178 psi | 68% | 3176 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,297 psi | 74% | 3212 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,281 psi | 41% | 1972 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,124 psi | 77% | 3271 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 50,053 psi | 78% | 3284 fps | 95.1% |
| ReloadSwiss RS 52 | 38.7 gr | 82% | 41,814 psi | 66% | 3232 fps | 96% |
| ReloadSwiss RS 60 | 38.3 gr | 80% | 31,952 psi | 50% | 2976 fps | 95.8% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 42,250 psi | 66% | 3228 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 45,803 psi | 72% | 3310 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 44,469 psi | 70% | 3159 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 38,638 psi | 61% | 3031 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 82% | 34,505 psi | 54% | 2969 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 94% | 47,050 psi | 74% | 3222 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,553 psi | 64% | 3117 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 37,028 psi | 58% | 3009 fps | 96.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,750 psi | 81% | 3284 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 38,000 psi | 60% | 3087 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,677 psi | 81% | 3291 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 44,889 psi | 70% | 3179 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,059 psi | 63% | 3094 fps | 96.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,293 psi | 66% | 3061 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,983 psi | 55% | 2890 fps | 99.1% |
| Somchem S321 | <<locked>> | 80% | 47,152 psi | 74% | 3248 fps | 99.1% |
| Somchem S335 | <<locked>> | 80% | 41,945 psi | 66% | 3061 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 41,466 psi | 65% | 3110 fps | 96.5% |
| Somchem S355 | <<locked>> | 82% | 35,505 psi | 56% | 2986 fps | 95.1% |
| Somchem S365 | <<locked>> | 90% | 33,185 psi | 52% | 3009 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 47,819 psi | 75% | 3153 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,496 psi | 67% | 3064 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,956 psi | 59% | 3031 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,841 psi | 61% | 3035 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 31,560 psi | 49% | 2851 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 94% | 44,715 psi | 70% | 3222 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 43,845 psi | 69% | 3156 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 80% | 37,275 psi | 58% | 3005 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 94% | 43,932 psi | 69% | 3215 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 37,014 psi | 58% | 2999 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 43,192 psi | 68% | 3202 fps | 98.9% |
| Winchester 760 | <<locked>> | 98% | 52,344 psi | 82% | 3412 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,450 psi | 62% | 3094 fps | 96.6% |
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 92 powders for .243 WSSM loaded with the .243 | 73gr | SUS-TAC HPT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,583 fps; across all powders the maximum-charge window runs from 2,146 fps to 3,583 fps. Accurate 4350 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 73.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon H414 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 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .243 WSSM with the .243 | 73gr | SUS-TAC HPT 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.