Load Specifications
Bullet Manufacturer:Remington
Bullet Weight:80 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:1:10.0
Load data in caliber .243 WSSM with .243 | 80gr | Remington HP Power-Lokt bullet and 100 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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.
A valid access license is required to use the Personalized Load Calculator.
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% | 54,984 psi | 86% | 3179 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,869 psi | 89% | 3258 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 57,319 psi | 90% | 3251 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,709 psi | 87% | 3271 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,550 psi | 89% | 3235 fps | 96.1% |
| Accurate 4064 | <<locked>> | 92% | 57,232 psi | 90% | 3301 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 57,580 psi | 90% | 3386 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 88% | 57,667 psi | 90% | 3337 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 55,216 psi | 87% | 3274 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,637 psi | 89% | 3284 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,522 psi | 90% | 3264 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,682 psi | 90% | 3468 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,419 psi | 87% | 3304 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,682 psi | 90% | 3238 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,767 psi | 87% | 3323 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,839 psi | 86% | 3386 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,666 psi | 89% | 3435 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,291 psi | 62% | 3068 fps | 97.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,324 psi | 69% | 3245 fps | 96.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,041 psi | 85% | 3284 fps | 99% |
| Bofors RP3 | <<locked>> | 92% | 55,999 psi | 88% | 3317 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,231 psi | 88% | 3278 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,897 psi | 86% | 3212 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,362 psi | 88% | 3317 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,549 psi | 85% | 3363 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 82% | 57,145 psi | 90% | 3284 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 57,203 psi | 90% | 3330 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 98% | 56,811 psi | 89% | 3376 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 96% | 57,392 psi | 90% | 3340 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 86% | 54,766 psi | 86% | 3294 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,068 psi | 80% | 3245 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,186 psi | 85% | 3323 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 96% | 53,925 psi | 85% | 3346 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 55% | 2064 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,043 psi | 88% | 3297 fps | 99.9% |
| IMR 3031 | <<locked>> | 86% | 54,766 psi | 86% | 3284 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,636 psi | 86% | 3258 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,737 psi | 86% | 3228 fps | 96.6% |
| IMR 4198 | <<locked>> | 82% | 57,696 psi | 90% | 3199 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,507 psi | 89% | 3301 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,723 psi | 86% | 3258 fps | 96.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,230 psi | 85% | 3310 fps | 99% |
| IMR 4895 | <<locked>> | 90% | 57,188 psi | 90% | 3360 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 56,637 psi | 89% | 3284 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 57,043 psi | 89% | 3268 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,551 psi | 90% | 3310 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 57,014 psi | 89% | 3258 fps | 99.8% |
| Lovex S062 | <<locked>> | 90% | 54,520 psi | 85% | 3255 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 57,246 psi | 90% | 3301 fps | 98.3% |
| Lovex S070 | <<locked>> | 98% | 54,810 psi | 86% | 3281 fps | 96.9% |
| Norma 201 | <<locked>> | 88% | 56,231 psi | 88% | 3278 fps | 100% |
| Norma 202 | <<locked>> | 88% | 57,116 psi | 90% | 3284 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,940 psi | 86% | 3307 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 56,318 psi | 88% | 3369 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 90% | 55,695 psi | 87% | 3333 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,245 psi | 87% | 3356 fps | 97.8% |
| Ramshot TAC | <<locked>> | 86% | 57,261 psi | 90% | 3301 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,797 psi | 89% | 3323 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,070 psi | 85% | 3225 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,737 psi | 56% | 2113 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,028 psi | 88% | 3264 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 57,566 psi | 90% | 3310 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,304 psi | 88% | 3399 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 56,217 psi | 88% | 3438 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 57,392 psi | 90% | 3406 fps | 99.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 57,043 psi | 89% | 3438 fps | 99% |
| Rottweil R 901 | <<locked>> | 86% | 57,130 psi | 90% | 3261 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,695 psi | 89% | 3271 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,840 psi | 88% | 3307 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 96% | 56,231 psi | 88% | 3278 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 98% | 57,246 psi | 90% | 3301 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,551 psi | 90% | 3310 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,520 psi | 85% | 3255 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,810 psi | 86% | 3281 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 53,969 psi | 85% | 3314 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,724 psi | 87% | 3274 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,072 psi | 88% | 3301 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,230 psi | 85% | 3163 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,882 psi | 86% | 3159 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,375 psi | 85% | 3192 fps | 96.6% |
| Somchem S321 | <<locked>> | 82% | 54,302 psi | 85% | 3258 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 57,130 psi | 90% | 3209 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,143 psi | 86% | 3264 fps | 99.6% |
| Somchem S355 | <<locked>> | 94% | 55,970 psi | 88% | 3304 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,836 psi | 80% | 3314 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 57,551 psi | 90% | 3179 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,462 psi | 85% | 3146 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,608 psi | 89% | 3241 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 57,609 psi | 90% | 3258 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,114 psi | 85% | 3225 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,347 psi | 87% | 3304 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 86% | 57,159 psi | 90% | 3284 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,709 psi | 87% | 3248 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,505 psi | 85% | 3310 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,004 psi | 67% | 3156 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,869 psi | 88% | 3281 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 57,188 psi | 90% | 3337 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,811 psi | 89% | 3376 fps | 97.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,259 psi | 55% | 3045 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,173 psi | 88% | 3314 fps | 99.9% |
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% | 48,370 psi | 76% | 3074 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,403 psi | 84% | 3202 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,162 psi | 65% | 2979 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,269 psi | 76% | 3146 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 53,171 psi | 83% | 3176 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 38,914 psi | 61% | 2963 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 37,724 psi | 59% | 2989 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 44,657 psi | 70% | 3091 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 37,869 psi | 59% | 2913 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,673 psi | 73% | 3107 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 46,920 psi | 74% | 3100 fps | 100% |
| Alliant Power Pro 2000-MR | 39.2 gr | 80% | 40,654 psi | 64% | 3107 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,565 psi | 59% | 2940 fps | 97.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,143 psi | 85% | 3186 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,335 psi | 63% | 3012 fps | 96.7% |
| Alliant Reloder-16 | <<locked>> | 88% | 37,753 psi | 59% | 3005 fps | 95.1% |
| Alliant Reloder-17 | 39.6 gr | 82% | 34,882 psi | 55% | 2956 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 96% | 34,650 psi | 54% | 2940 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 41,220 psi | 65% | 3169 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,947 psi | 69% | 3087 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 37,260 psi | 58% | 2943 fps | 97.4% |
| Bofors RP7 | <<locked>> | 94% | 52,808 psi | 83% | 3219 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,602 psi | 76% | 3100 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,701 psi | 72% | 3127 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,778 psi | 80% | 3294 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 80% | 53,548 psi | 84% | 3228 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 40,930 psi | 64% | 3012 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 94% | 49,574 psi | 78% | 3245 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 94% | 53,563 psi | 84% | 3271 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 45,034 psi | 71% | 3107 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 32,430 psi | 51% | 2822 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,278 psi | 65% | 3068 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 94% | 50,183 psi | 79% | 3274 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,252 psi | 41% | 1850 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,279 psi | 68% | 3051 fps | 98.4% |
| IMR 3031 | <<locked>> | 80% | 44,759 psi | 70% | 3110 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,697 psi | 62% | 2956 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 84% | 48,051 psi | 75% | 3100 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 54,085 psi | 85% | 3143 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 53,113 psi | 83% | 3241 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 92% | 51,155 psi | 80% | 3189 fps | 95.7% |
| IMR 4831 | <<locked>> | 90% | 39,073 psi | 61% | 3002 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 41,336 psi | 65% | 3048 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 80% | 46,673 psi | 73% | 3107 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 53,171 psi | 83% | 3209 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,135 psi | 69% | 3077 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 44,599 psi | 70% | 3025 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 39,726 psi | 62% | 2963 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 44,686 psi | 70% | 3064 fps | 95.7% |
| Lovex S070 | <<locked>> | 94% | 48,341 psi | 76% | 3156 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 43,685 psi | 68% | 3041 fps | 99% |
| Norma 202 | <<locked>> | 80% | 44,005 psi | 69% | 3054 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,726 psi | 62% | 2999 fps | 97.1% |
| Norma URP | <<locked>> | 88% | 37,985 psi | 60% | 2992 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 39,378 psi | 62% | 3009 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 94% | 45,368 psi | 71% | 3166 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 46,804 psi | 73% | 3104 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,543 psi | 73% | 3133 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,531 psi | 79% | 3159 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,716 psi | 42% | 1896 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,663 psi | 83% | 3209 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 47,195 psi | 74% | 3117 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,424 psi | 66% | 3123 fps | 97.2% |
| ReloadSwiss RS 60 | 38.6 gr | 80% | 34,592 psi | 54% | 2963 fps | 98.3% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 40,263 psi | 63% | 3071 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 43,236 psi | 68% | 3153 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 47,718 psi | 75% | 3100 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,640 psi | 65% | 2989 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 80% | 34,998 psi | 55% | 2874 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 52,808 psi | 83% | 3219 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 44,686 psi | 70% | 3064 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,135 psi | 69% | 3077 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 39,726 psi | 62% | 2963 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 94% | 48,341 psi | 76% | 3156 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,998 psi | 56% | 2927 fps | 95.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,092 psi | 71% | 3074 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,178 psi | 68% | 3054 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,962 psi | 70% | 2999 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,420 psi | 59% | 2841 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 50,952 psi | 80% | 3130 fps | 95.8% |
| Somchem S321 | <<locked>> | 80% | 50,705 psi | 79% | 3196 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 44,657 psi | 70% | 2999 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,788 psi | 70% | 3071 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 35,824 psi | 56% | 2887 fps | 96.4% |
| Somchem S365 | <<locked>> | 84% | 29,820 psi | 47% | 2802 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 50,720 psi | 79% | 3074 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,281 psi | 71% | 2995 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,002 psi | 64% | 2976 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,669 psi | 65% | 2979 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 34,098 psi | 53% | 2815 fps | 97.3% |
| Vihtavuori N160 | <<locked>> | 88% | 39,639 psi | 62% | 2995 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 46,804 psi | 73% | 3100 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 40,219 psi | 63% | 2963 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 39,131 psi | 61% | 2995 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 96% | 37,594 psi | 59% | 3028 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 32,474 psi | 51% | 2776 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 46,833 psi | 73% | 3156 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 49,966 psi | 78% | 3251 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 33,098 psi | 52% | 2969 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,699 psi | 67% | 3058 fps | 98.4% |
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 100 powders for .243 WSSM loaded with the .243 | 80gr | Remington HP Power-Lokt. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,468 fps; across all powders the maximum-charge window runs from 2,064 fps to 3,468 fps. Accurate 4350 gives the best case fill at 100 %, and 100 of the 100 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 80.0 gr projectile in 0.243" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, 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 Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .243 WSSM with the .243 | 80gr | Remington HP Power-Lokt 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.