Load Specifications
Load data in caliber .244 Rem. with .243 | 80gr | Barnes TTSX BT bullet and 97 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 Reloder-17 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% | 55,259 psi | 89% | 3189 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 53,447 psi | 86% | 3205 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 53,142 psi | 85% | 3196 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,796 psi | 89% | 3278 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 53,258 psi | 85% | 3245 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,243 psi | 85% | 3310 fps | 98.5% |
| ADI AR 2206H | <<locked>> | 88% | 54,592 psi | 88% | 3284 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 94% | 55,883 psi | 90% | 3284 fps | 99.1% |
| ADI Benchmark 8208 | <<locked>> | 86% | 53,737 psi | 86% | 3238 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 86% | 53,983 psi | 87% | 3222 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,317 psi | 89% | 3360 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,534 psi | 87% | 3409 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,376 psi | 89% | 3304 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,897 psi | 88% | 3202 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,072 psi | 90% | 3330 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,822 psi | 83% | 3323 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,026 psi | 85% | 3373 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,476 psi | 87% | 3294 fps | 98.7% |
| Bofors RP3 | <<locked>> | 94% | 56,144 psi | 90% | 3320 fps | 99.9% |
| Bofors RP7 | <<locked>> | 98% | 56,434 psi | 90% | 3278 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,564 psi | 89% | 3225 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 52,750 psi | 85% | 3258 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,781 psi | 88% | 3369 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 82% | 54,056 psi | 87% | 3238 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,317 psi | 89% | 3261 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 53,563 psi | 86% | 3268 fps | 98% |
| Hodgdon H414 | <<locked>> | 98% | 53,127 psi | 85% | 3310 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 88% | 55,100 psi | 88% | 3301 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,906 psi | 77% | 3186 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,447 psi | 87% | 3327 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,853 psi | 56% | 2054 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,171 psi | 85% | 3245 fps | 99.5% |
| IMR 3031 | <<locked>> | 88% | 54,549 psi | 87% | 3287 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,172 psi | 88% | 3264 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,434 psi | 89% | 3238 fps | 96.3% |
| IMR 4198 | <<locked>> | 82% | 54,853 psi | 88% | 3159 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,027 psi | 88% | 3255 fps | 96.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,430 psi | 81% | 3241 fps | 98.1% |
| IMR 4895 | <<locked>> | 90% | 53,940 psi | 86% | 3304 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 86% | 53,737 psi | 86% | 3238 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 82% | 53,635 psi | 86% | 3215 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 53,969 psi | 87% | 3258 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,331 psi | 87% | 3209 fps | 99.4% |
| Lovex S062 | <<locked>> | 92% | 54,795 psi | 88% | 3261 fps | 99.9% |
| Lovex S065 | <<locked>> | 98% | 54,186 psi | 87% | 3245 fps | 97.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,723 psi | 88% | 3274 fps | 96.4% |
| Norma 201 | <<locked>> | 88% | 53,011 psi | 85% | 3222 fps | 99.8% |
| Norma 202 | <<locked>> | 88% | 53,563 psi | 86% | 3232 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,230 psi | 89% | 3314 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 52,562 psi | 84% | 3301 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 92% | 56,072 psi | 90% | 3340 fps | 99.5% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,750 psi | 83% | 3291 fps | 96.6% |
| Ramshot TAC | <<locked>> | 86% | 54,027 psi | 87% | 3241 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 53,766 psi | 86% | 3271 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,578 psi | 88% | 3232 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,201 psi | 56% | 2100 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,084 psi | 85% | 3219 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,201 psi | 87% | 3248 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 52,779 psi | 85% | 3337 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 52,605 psi | 84% | 3376 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,301 psi | 85% | 3337 fps | 98.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,635 psi | 86% | 3366 fps | 98% |
| Rottweil R 901 | <<locked>> | 86% | 53,693 psi | 86% | 3212 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 53,447 psi | 86% | 3222 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 96% | 55,985 psi | 90% | 3310 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 98% | 56,434 psi | 90% | 3278 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,186 psi | 87% | 3245 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 53,969 psi | 87% | 3258 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 54,795 psi | 88% | 3261 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,723 psi | 88% | 3274 fps | 96.4% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 56,434 psi | 90% | 3245 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,259 psi | 87% | 3314 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,637 psi | 89% | 3225 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,115 psi | 90% | 3278 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,098 psi | 85% | 3248 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,868 psi | 88% | 3173 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,172 psi | 88% | 3166 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,534 psi | 87% | 3189 fps | 96.1% |
| Somchem S321 | <<locked>> | 84% | 55,013 psi | 88% | 3271 fps | 99.9% |
| Somchem S335 | <<locked>> | 88% | 54,070 psi | 87% | 3166 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,622 psi | 89% | 3271 fps | 99.4% |
| Somchem S355 | <<locked>> | 96% | 56,275 psi | 90% | 3307 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,094 psi | 76% | 3241 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 84% | 54,578 psi | 88% | 3140 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,013 psi | 88% | 3159 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 53,171 psi | 85% | 3196 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,549 psi | 87% | 3212 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,491 psi | 87% | 3232 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,317 psi | 89% | 3304 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 86% | 54,099 psi | 87% | 3235 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 56,130 psi | 90% | 3255 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,389 psi | 87% | 3304 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,610 psi | 64% | 3081 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 52,649 psi | 84% | 3225 fps | 99.7% |
| Winchester 748 | <<locked>> | 86% | 53,925 psi | 86% | 3287 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 53,127 psi | 85% | 3310 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,069 psi | 85% | 3261 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% | 45,585 psi | 73% | 3031 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,038 psi | 80% | 3146 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,855 psi | 61% | 2917 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,991 psi | 72% | 3087 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 35,781 psi | 57% | 2894 fps | 99.1% |
| Accurate 4350 | <<locked>> | 92% | 39,929 psi | 64% | 3041 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 42,148 psi | 68% | 3038 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 38,159 psi | 61% | 2920 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,280 psi | 71% | 3058 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 44,019 psi | 71% | 3061 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,721 psi | 83% | 3294 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 40,959 psi | 66% | 3114 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,128 psi | 56% | 2877 fps | 96.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,343 psi | 82% | 3143 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,884 psi | 61% | 2949 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 92% | 39,958 psi | 64% | 3061 fps | 95.4% |
| Alliant Reloder-17 | 40 gr | 84% | 34,635 psi | 56% | 2943 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,278 psi | 66% | 3025 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 34,272 psi | 55% | 2864 fps | 95.9% |
| Bofors RP7 | <<locked>> | 96% | 52,837 psi | 85% | 3212 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,992 psi | 74% | 3051 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,728 psi | 69% | 3064 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,239 psi | 76% | 3225 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 80% | 50,560 psi | 81% | 3179 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,503 psi | 83% | 3199 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 43,555 psi | 70% | 3068 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 96% | 49,719 psi | 80% | 3245 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 42,511 psi | 68% | 3051 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 34,389 psi | 55% | 2877 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,464 psi | 62% | 3002 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,701 psi | 41% | 1837 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,669 psi | 65% | 2992 fps | 97.4% |
| IMR 3031 | <<locked>> | 80% | 41,626 psi | 67% | 3054 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,449 psi | 60% | 2900 fps | 95.4% |
| IMR 4166 Enduron | <<locked>> | 88% | 52,025 psi | 83% | 3176 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 51,721 psi | 83% | 3110 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 51,648 psi | 83% | 3192 fps | 95.3% |
| IMR 4831 | <<locked>> | 94% | 41,118 psi | 66% | 3051 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 38,798 psi | 62% | 2986 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 80% | 44,280 psi | 71% | 3058 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 49,835 psi | 80% | 3153 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 40,915 psi | 66% | 3012 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 42,453 psi | 68% | 2979 fps | 97.4% |
| Lovex S062 | <<locked>> | 80% | 37,246 psi | 60% | 2904 fps | 97.3% |
| Lovex S065 | <<locked>> | 92% | 44,657 psi | 72% | 3061 fps | 95.1% |
| Lovex S070 | <<locked>> | 98% | 51,329 psi | 82% | 3212 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 41,060 psi | 66% | 2986 fps | 98.2% |
| Norma 202 | <<locked>> | 80% | 41,437 psi | 66% | 3002 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 37,246 psi | 60% | 2936 fps | 95.8% |
| Norma URP | <<locked>> | 92% | 40,335 psi | 65% | 3051 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 36,680 psi | 59% | 2940 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 98% | 48,486 psi | 78% | 3225 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 44,193 psi | 71% | 3048 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,424 psi | 70% | 3068 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,863 psi | 77% | 3107 fps | 98.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,107 psi | 42% | 1883 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,763 psi | 80% | 3163 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 47,369 psi | 76% | 3117 fps | 95% |
| ReloadSwiss RS 52 | 37.5 gr | 80% | 39,320 psi | 63% | 3054 fps | 95.8% |
| ReloadSwiss RS 60 | 38.1 gr | 80% | 32,198 psi | 52% | 2884 fps | 96.7% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 43,047 psi | 69% | 3133 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 43,381 psi | 70% | 3146 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 44,541 psi | 71% | 3041 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 38,754 psi | 62% | 2923 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 82% | 34,722 psi | 56% | 2871 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 96% | 52,837 psi | 85% | 3212 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 92% | 44,657 psi | 72% | 3061 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,915 psi | 66% | 3012 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 37,246 psi | 60% | 2904 fps | 97.3% |
| Shooters World SW4350 | <<locked>> | 98% | 51,329 psi | 82% | 3212 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,489 psi | 84% | 3179 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 36,027 psi | 58% | 2930 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,402 psi | 84% | 3173 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,206 psi | 68% | 3009 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,538 psi | 65% | 2992 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,627 psi | 68% | 2953 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,215 psi | 56% | 2789 fps | 99.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 50,981 psi | 82% | 3127 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 47,747 psi | 77% | 3140 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 42,221 psi | 68% | 2953 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,003 psi | 67% | 3012 fps | 97.2% |
| Somchem S355 | <<locked>> | 82% | 35,708 psi | 57% | 2884 fps | 95.8% |
| Somchem S365 | <<locked>> | 88% | 31,357 psi | 50% | 2851 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 48,269 psi | 77% | 3038 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,931 psi | 69% | 2953 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,305 psi | 61% | 2923 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,218 psi | 63% | 2930 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 31,749 psi | 51% | 2753 fps | 96% |
| Vihtavuori N160 | <<locked>> | 92% | 42,235 psi | 68% | 3054 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 43,990 psi | 71% | 3045 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 80% | 37,550 psi | 60% | 2904 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 92% | 41,524 psi | 67% | 3051 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 98% | 36,941 psi | 59% | 3015 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 34,925 psi | 56% | 2841 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 43,830 psi | 70% | 3097 fps | 99.3% |
| Winchester 760 | <<locked>> | 96% | 49,719 psi | 80% | 3245 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,914 psi | 64% | 2995 fps | 97.3% |
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 97 powders for .244 Rem. loaded with the .243 | 80gr | Barnes TTSX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,409 fps; across all powders the maximum-charge window runs from 2,054 fps to 3,409 fps. Accurate 4350 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 80.0 gr projectile in 0.243" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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 Reloder-17, ReloadSwiss RS 52 rank at the top here: for .244 Rem. with the .243 | 80gr | Barnes TTSX 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.