Load Specifications
Load data in caliber 5.6 x 57 with .224 | 69gr | Sierra Tipped MatchKing bullet and 94 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.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 56,594 psi | 89% | 3182 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,695 psi | 87% | 3205 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,435 psi | 90% | 3274 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,549 psi | 85% | 3186 fps | 95.8% |
| Accurate 4064 | <<locked>> | 90% | 55,782 psi | 87% | 3255 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,985 psi | 88% | 3333 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 86% | 55,927 psi | 88% | 3287 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 92% | 56,942 psi | 89% | 3284 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,853 psi | 86% | 3235 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,883 psi | 88% | 3215 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,840 psi | 88% | 3412 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,188 psi | 90% | 3307 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 57,740 psi | 90% | 3333 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,072 psi | 89% | 3399 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,911 psi | 86% | 3379 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,133 psi | 64% | 3087 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,412 psi | 73% | 3268 fps | 97.5% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,811 psi | 87% | 3294 fps | 99.3% |
| Bofors RP3 | <<locked>> | 90% | 54,433 psi | 85% | 3268 fps | 99.9% |
| Bofors RP7 | <<locked>> | 94% | 54,375 psi | 85% | 3225 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,565 psi | 89% | 3222 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,447 psi | 85% | 3261 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,579 psi | 89% | 3373 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 90% | 55,317 psi | 87% | 3278 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 96% | 54,969 psi | 86% | 3323 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 86% | 56,550 psi | 89% | 3297 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,200 psi | 83% | 3258 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,376 psi | 88% | 3333 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,304 psi | 88% | 3369 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,389 psi | 55% | 2060 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,317 psi | 85% | 3241 fps | 99.8% |
| IMR 3031 | <<locked>> | 86% | 56,463 psi | 88% | 3284 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,304 psi | 88% | 3264 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,144 psi | 88% | 3235 fps | 97% |
| IMR 4350 | <<locked>> | 98% | 54,781 psi | 86% | 3251 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,405 psi | 88% | 3268 fps | 97% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,652 psi | 89% | 3327 fps | 99.3% |
| IMR 4895 | <<locked>> | 88% | 55,622 psi | 87% | 3307 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 84% | 54,853 psi | 86% | 3235 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,738 psi | 87% | 3258 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,056 psi | 86% | 3202 fps | 99.7% |
| Lovex S062 | <<locked>> | 90% | 56,260 psi | 88% | 3261 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,825 psi | 87% | 3258 fps | 98.2% |
| Lovex S070 | <<locked>> | 98% | 56,855 psi | 89% | 3291 fps | 97.4% |
| Norma 201 | <<locked>> | 86% | 54,462 psi | 85% | 3225 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,085 psi | 86% | 3228 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,942 psi | 89% | 3320 fps | 99.8% |
| Norma URP | <<locked>> | 98% | 54,940 psi | 86% | 3320 fps | 99% |
| Ramshot Big Game | <<locked>> | 88% | 54,012 psi | 85% | 3281 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 98% | 53,722 psi | 84% | 3307 fps | 97.6% |
| Ramshot TAC | <<locked>> | 84% | 55,042 psi | 86% | 3241 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,868 psi | 86% | 3264 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,622 psi | 87% | 3228 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,998 psi | 56% | 2110 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,595 psi | 90% | 3268 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,695 psi | 87% | 3255 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,549 psi | 85% | 3343 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,302 psi | 85% | 3379 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,811 psi | 87% | 3353 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,259 psi | 87% | 3383 fps | 98.8% |
| Rottweil R 901 | <<locked>> | 84% | 55,535 psi | 87% | 3215 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,071 psi | 86% | 3225 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,230 psi | 85% | 3258 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 54,375 psi | 85% | 3225 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,825 psi | 87% | 3258 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,738 psi | 87% | 3258 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,260 psi | 88% | 3261 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,855 psi | 89% | 3291 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,014 psi | 88% | 3320 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,406 psi | 90% | 3281 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,331 psi | 85% | 3248 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,941 psi | 88% | 3166 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,434 psi | 88% | 3159 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,072 psi | 88% | 3202 fps | 97% |
| Somchem S321 | <<locked>> | 82% | 56,173 psi | 88% | 3268 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,288 psi | 87% | 3159 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,913 psi | 89% | 3271 fps | 99.8% |
| Somchem S355 | <<locked>> | 92% | 54,491 psi | 85% | 3255 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,953 psi | 83% | 3320 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 55,680 psi | 87% | 3130 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,188 psi | 88% | 3150 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,100 psi | 86% | 3196 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,753 psi | 87% | 3205 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,072 psi | 88% | 3232 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,348 psi | 90% | 3314 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 84% | 55,550 psi | 87% | 3235 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,711 psi | 90% | 3251 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,666 psi | 89% | 3323 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,368 psi | 71% | 3179 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,273 psi | 85% | 3235 fps | 99.9% |
| Winchester 748 | <<locked>> | 84% | 55,579 psi | 87% | 3287 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,463 psi | 87% | 3330 fps | 97% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,956 psi | 58% | 3077 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,462 psi | 85% | 3258 fps | 99.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 50,183 psi | 79% | 3081 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,960 psi | 67% | 2989 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,038 psi | 78% | 3153 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 51,213 psi | 80% | 3123 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 40,582 psi | 64% | 2972 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 39,494 psi | 62% | 3005 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 46,296 psi | 73% | 3104 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 39,160 psi | 61% | 2923 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,356 psi | 76% | 3117 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 48,762 psi | 76% | 3107 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,308 psi | 66% | 3127 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,856 psi | 61% | 2946 fps | 97.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,959 psi | 66% | 3025 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 39,059 psi | 61% | 3018 fps | 95.8% |
| Alliant Reloder-17 | 33.9 gr | 80% | 33,663 psi | 53% | 2894 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 94% | 33,895 psi | 53% | 2894 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 39,929 psi | 63% | 3110 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,498 psi | 71% | 3097 fps | 97.6% |
| Bofors RP3 | <<locked>> | 80% | 38,740 psi | 61% | 2953 fps | 97.9% |
| Bofors RP7 | <<locked>> | 92% | 50,995 psi | 80% | 3163 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,980 psi | 78% | 3107 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,558 psi | 75% | 3136 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,591 psi | 82% | 3304 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 80% | 39,668 psi | 62% | 2956 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 92% | 48,254 psi | 76% | 3196 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 46,717 psi | 73% | 3117 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 33,808 psi | 53% | 2838 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,728 psi | 67% | 3074 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 94% | 52,286 psi | 82% | 3291 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,397 psi | 41% | 1847 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,846 psi | 70% | 3064 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 46,456 psi | 73% | 3117 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,118 psi | 64% | 2966 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 84% | 49,617 psi | 78% | 3114 fps | 95.6% |
| IMR 4350 | <<locked>> | 96% | 51,445 psi | 81% | 3189 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 49,850 psi | 78% | 3143 fps | 95.5% |
| IMR 4831 | <<locked>> | 88% | 38,087 psi | 60% | 2953 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 42,989 psi | 67% | 3061 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 48,356 psi | 76% | 3117 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 45,411 psi | 71% | 3077 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 46,021 psi | 72% | 3035 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 41,220 psi | 65% | 2972 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 43,453 psi | 68% | 3015 fps | 95.4% |
| Lovex S070 | <<locked>> | 92% | 46,992 psi | 74% | 3107 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 45,324 psi | 71% | 3051 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 45,397 psi | 71% | 3058 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,321 psi | 65% | 3012 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 39,436 psi | 62% | 3002 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 41,031 psi | 64% | 3022 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 92% | 43,961 psi | 69% | 3107 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 48,341 psi | 76% | 3114 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,993 psi | 75% | 3140 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,953 psi | 81% | 3166 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,701 psi | 42% | 1890 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 54,056 psi | 85% | 3209 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 45,440 psi | 71% | 3061 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,208 psi | 69% | 3136 fps | 97.7% |
| ReloadSwiss RS 60 | 33.9 gr | 80% | 35,810 psi | 56% | 2972 fps | 98.7% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 39,262 psi | 62% | 3018 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 42,003 psi | 66% | 3100 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 48,979 psi | 77% | 3100 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,989 psi | 67% | 2995 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 36,405 psi | 57% | 2887 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 92% | 50,995 psi | 80% | 3163 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 43,453 psi | 68% | 3015 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,411 psi | 71% | 3077 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 41,220 psi | 65% | 2972 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 92% | 46,992 psi | 74% | 3107 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,405 psi | 59% | 2940 fps | 96.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,659 psi | 73% | 3084 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,628 psi | 70% | 3061 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,369 psi | 73% | 3002 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,711 psi | 61% | 2844 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 49,255 psi | 77% | 3077 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 52,388 psi | 82% | 3202 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 46,253 psi | 72% | 3005 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,354 psi | 73% | 3081 fps | 98.6% |
| Somchem S355 | <<locked>> | 80% | 37,318 psi | 58% | 2900 fps | 97% |
| Somchem S365 | <<locked>> | 84% | 30,908 psi | 48% | 2815 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 52,257 psi | 82% | 3077 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,702 psi | 73% | 2999 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,525 psi | 67% | 2979 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,134 psi | 68% | 2986 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,389 psi | 55% | 2822 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 38,580 psi | 60% | 2943 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 48,385 psi | 76% | 3110 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 41,785 psi | 65% | 2969 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 40,756 psi | 64% | 3009 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 94% | 36,970 psi | 58% | 2982 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 33,678 psi | 53% | 2792 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 48,414 psi | 76% | 3163 fps | 99.9% |
| Winchester 760 | 38.2 gr | 92% | 48,254 psi | 76% | 3196 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 96% | 32,271 psi | 51% | 2917 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,251 psi | 69% | 3064 fps | 98.7% |
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 94 powders for 5.6 x 57 loaded with the .224 | 69gr | Sierra Tipped MatchKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,412 fps; across all powders the maximum-charge window runs from 2,060 fps to 3,412 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 94 of the 94 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 69.0 gr projectile in 0.224" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Alliant Reloder-26 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 5.6 x 57 with the .224 | 69gr | Sierra Tipped MatchKing 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.