Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:77 gr
Bullet Diameter:0.224"
Bullet Length:<<locked>>
Caliber:.223 WSSM load data
Case Length (l3):1.663"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:53.7 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:8.5
Load data in caliber .223 WSSM with .224 | 77gr | Sierra Tipped MatchKing bullet and 89 powders. The key underlying parameters are shown in the table above.
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 2495 | <<locked>> | 82% | 56,753 psi | 89% | 3120 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 54,317 psi | 85% | 3133 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,695 psi | 89% | 3238 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 57,203 psi | 90% | 3182 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,694 psi | 86% | 3238 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 54,172 psi | 85% | 3327 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 86% | 57,029 psi | 89% | 3215 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,622 psi | 87% | 3281 fps | 97.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 57,217 psi | 90% | 3337 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,826 psi | 89% | 3350 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,433 psi | 85% | 3186 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,549 psi | 85% | 3205 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,317 psi | 87% | 3301 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 57,029 psi | 89% | 3330 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,259 psi | 87% | 3271 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,362 psi | 88% | 3330 fps | 98.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,243 psi | 83% | 3258 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,398 psi | 73% | 3173 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,577 psi | 84% | 3343 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,590 psi | 81% | 3241 fps | 97.1% |
| Bofors RP3 | <<locked>> | 84% | 55,579 psi | 87% | 3205 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,362 psi | 88% | 3330 fps | 98.2% |
| Bofors RP7 | <<locked>> | 88% | 54,607 psi | 86% | 3179 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 84% | 55,796 psi | 87% | 3219 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 56,898 psi | 89% | 3294 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 88% | 56,246 psi | 88% | 3248 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 98% | 57,522 psi | 90% | 3278 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,260 psi | 88% | 3258 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,680 psi | 87% | 3215 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,014 psi | 89% | 3258 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,411 psi | 71% | 3205 fps | 96.3% |
| Hodgdon Superformance | <<locked>> | 90% | 57,508 psi | 90% | 3333 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,434 psi | 57% | 2051 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,421 psi | 90% | 3219 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,391 psi | 88% | 3196 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,506 psi | 87% | 3176 fps | 98.9% |
| IMR 4350 | <<locked>> | 92% | 55,912 psi | 88% | 3219 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,318 psi | 88% | 3212 fps | 99% |
| IMR 4831 | <<locked>> | 92% | 54,984 psi | 86% | 3225 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,970 psi | 88% | 3238 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,998 psi | 86% | 3199 fps | 96% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,607 psi | 86% | 3304 fps | 96.5% |
| Lovex S062 | <<locked>> | 84% | 56,753 psi | 89% | 3189 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,565 psi | 89% | 3209 fps | 99.7% |
| Lovex S070 | <<locked>> | 90% | 54,723 psi | 86% | 3199 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,992 psi | 74% | 3068 fps | 98.4% |
| Norma 203B | <<locked>> | 84% | 57,348 psi | 90% | 3248 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,884 psi | 89% | 3274 fps | 97.9% |
| Norma MRP | <<locked>> | 98% | 55,956 psi | 88% | 3356 fps | 99.1% |
| Norma URP | <<locked>> | 92% | 57,130 psi | 90% | 3284 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,853 psi | 86% | 3219 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,172 psi | 86% | 3320 fps | 97% |
| Ramshot Hunter | <<locked>> | 92% | 55,854 psi | 88% | 3278 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,603 psi | 78% | 3182 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,115 psi | 58% | 2096 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,622 psi | 87% | 3199 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,260 psi | 88% | 3317 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,737 psi | 86% | 3261 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 57,072 psi | 89% | 3353 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,498 psi | 71% | 3196 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 82% | 55,288 psi | 87% | 3150 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,405 psi | 87% | 3196 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,188 psi | 90% | 3245 fps | 97% |
| Rottweil R 905 | <<locked>> | 96% | 54,273 psi | 85% | 3251 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 88% | 54,607 psi | 86% | 3179 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,565 psi | 89% | 3209 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 56,753 psi | 89% | 3189 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,723 psi | 86% | 3199 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,348 psi | 90% | 3264 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,188 psi | 88% | 3074 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,347 psi | 88% | 3159 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 57,508 psi | 90% | 3307 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 55,376 psi | 87% | 3196 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,753 psi | 87% | 3179 fps | 95.9% |
| Somchem S365 | <<locked>> | 94% | 56,594 psi | 89% | 3281 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,911 psi | 86% | 3222 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 82% | 55,666 psi | 87% | 3107 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,753 psi | 87% | 3120 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,594 psi | 89% | 3163 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,405 psi | 87% | 3215 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,447 psi | 85% | 3196 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 84% | 57,740 psi | 90% | 3169 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,621 psi | 86% | 3219 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 55,753 psi | 87% | 3287 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,101 psi | 88% | 3343 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,347 psi | 87% | 3179 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,898 psi | 89% | 3294 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,820 psi | 77% | 3323 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,216 psi | 87% | 3215 fps | 97.7% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 53,171 psi | 83% | 3071 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,691 psi | 79% | 3071 fps | 97.6% |
| Accurate 3100 | <<locked>> | 88% | 37,536 psi | 59% | 2864 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 50,386 psi | 79% | 3074 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,609 psi | 61% | 2913 fps | 97.9% |
| Accurate High Country | <<locked>> | 94% | 50,299 psi | 79% | 3255 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 47,253 psi | 74% | 3041 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 45,730 psi | 72% | 3087 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 96% | 49,777 psi | 78% | 3192 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,779 psi | 83% | 3281 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,950 psi | 75% | 3071 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,213 psi | 80% | 3150 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,318 psi | 58% | 2923 fps | 97.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,699 psi | 67% | 3068 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 45,281 psi | 71% | 3074 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 45,905 psi | 72% | 3130 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,543 psi | 43% | 2644 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 92% | 35,679 psi | 56% | 2907 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 84% | 34,055 psi | 53% | 2904 fps | 96% |
| Bofors RP15 | <<locked>> | 96% | 45,266 psi | 71% | 3114 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 48,443 psi | 76% | 3084 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 45,905 psi | 72% | 3130 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 42,424 psi | 66% | 2933 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 48,776 psi | 76% | 3094 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 80% | 40,640 psi | 64% | 2969 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 80% | 43,395 psi | 68% | 2992 fps | 95.2% |
| Hodgdon H4831 | <<locked>> | 96% | 53,432 psi | 84% | 3205 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 52,272 psi | 82% | 3186 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,998 psi | 55% | 2808 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,142 psi | 83% | 3196 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 42,308 psi | 66% | 3127 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 39,624 psi | 62% | 2972 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 43% | 1837 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,911 psi | 84% | 3163 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,676 psi | 78% | 3081 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,185 psi | 82% | 3117 fps | 98.5% |
| IMR 4350 | <<locked>> | 82% | 40,596 psi | 64% | 2910 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,976 psi | 69% | 2972 fps | 96.7% |
| IMR 4831 | <<locked>> | 80% | 37,159 psi | 58% | 2864 fps | 97.6% |
| IMR 4895 | <<locked>> | 80% | 52,518 psi | 82% | 3179 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,692 psi | 81% | 3136 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 98% | 51,053 psi | 80% | 3235 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 50,082 psi | 78% | 3081 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,423 psi | 65% | 2913 fps | 97.4% |
| Lovex S070 | <<locked>> | 80% | 39,653 psi | 62% | 2890 fps | 95.7% |
| Lovex S071 | <<locked>> | 92% | 36,187 psi | 57% | 2828 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 50,546 psi | 79% | 3133 fps | 100% |
| Norma 204 | <<locked>> | 86% | 46,456 psi | 73% | 3077 fps | 95.5% |
| Norma MRP | <<locked>> | 88% | 39,233 psi | 61% | 3009 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 38,319 psi | 60% | 2910 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 80% | 51,126 psi | 80% | 3153 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 47,718 psi | 75% | 3176 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 37,217 psi | 58% | 2890 fps | 95.6% |
| Ramshot Magnum | <<locked>> | 96% | 42,569 psi | 67% | 3035 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,601 psi | 43% | 1877 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,762 psi | 76% | 3074 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,324 psi | 71% | 3130 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,551 psi | 60% | 2936 fps | 97.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,260 psi | 58% | 2936 fps | 96.8% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 39,363 psi | 62% | 3035 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 51,895 psi | 81% | 3094 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,585 psi | 71% | 3022 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 50,328 psi | 79% | 3123 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 44,483 psi | 70% | 3058 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 42,424 psi | 66% | 2933 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,423 psi | 65% | 2913 fps | 97.4% |
| Shooters World Precision | <<locked>> | 80% | 50,082 psi | 78% | 3081 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,653 psi | 62% | 2890 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,789 psi | 73% | 3081 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,615 psi | 73% | 2927 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,625 psi | 64% | 2854 fps | 95.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 44,077 psi | 69% | 3048 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 45,788 psi | 72% | 3022 fps | 99.9% |
| Somchem S361 | <<locked>> | 92% | 52,069 psi | 82% | 3114 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 34,780 psi | 55% | 2861 fps | 99.4% |
| Somchem S385 | <<locked>> | 88% | 42,177 psi | 66% | 2972 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 52,170 psi | 82% | 3054 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,344 psi | 82% | 3068 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,758 psi | 69% | 2943 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,697 psi | 62% | 2910 fps | 98% |
| Vihtavuori N165 | <<locked>> | 92% | 41,568 psi | 65% | 2946 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 50,705 psi | 79% | 3058 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,233 psi | 61% | 2910 fps | 97.7% |
| Vihtavuori N555 | <<locked>> | 80% | 30,516 psi | 48% | 2733 fps | 95.5% |
| Vihtavuori N560 | <<locked>> | 96% | 52,504 psi | 82% | 3278 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,928 psi | 61% | 2877 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 40,640 psi | 64% | 2969 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 84% | 27,876 psi | 44% | 2743 fps | 96.4% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,744 psi | 70% | 3018 fps | 95.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 96 powders for .223 WSSM loaded with the .224 | 77gr | Sierra Tipped MatchKing. Norma MRP delivers the highest muzzle velocity at 3,356 fps; across all powders the maximum-charge window runs from 2,051 fps to 3,356 fps. Accurate 3100 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 77.0 gr projectile in 0.224" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, ADI AR 2217 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. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.