Load Specifications
Load data in caliber 5.6 x 57 with .224 | 69gr | Barnes Match Burner BT bullet and 94 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 70.
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% | 57,392 psi | 90% | 3196 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,449 psi | 88% | 3215 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,491 psi | 85% | 3232 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,535 psi | 87% | 3205 fps | 96.1% |
| Accurate 4064 | <<locked>> | 90% | 56,521 psi | 89% | 3264 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,072 psi | 89% | 3353 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 56,608 psi | 89% | 3301 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 57,537 psi | 90% | 3294 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,564 psi | 87% | 3248 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,246 psi | 88% | 3222 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,420 psi | 88% | 3422 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 57,348 psi | 90% | 3314 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,331 psi | 85% | 3264 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,868 psi | 86% | 3287 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,609 psi | 90% | 3412 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,506 psi | 87% | 3392 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,539 psi | 65% | 3100 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,239 psi | 74% | 3287 fps | 97.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,840 psi | 89% | 3310 fps | 99.4% |
| Bofors RP3 | <<locked>> | 90% | 55,071 psi | 86% | 3278 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,897 psi | 86% | 3235 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,753 psi | 89% | 3225 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,085 psi | 86% | 3274 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,276 psi | 90% | 3386 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 90% | 55,898 psi | 88% | 3291 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 96% | 55,970 psi | 88% | 3340 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 86% | 57,188 psi | 90% | 3314 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,273 psi | 85% | 3274 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,000 psi | 89% | 3343 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,681 psi | 89% | 3379 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,607 psi | 56% | 2070 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,955 psi | 86% | 3258 fps | 99.9% |
| IMR 3031 | <<locked>> | 86% | 57,246 psi | 90% | 3297 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,956 psi | 89% | 3278 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,710 psi | 89% | 3251 fps | 97.2% |
| IMR 4350 | <<locked>> | 98% | 55,709 psi | 87% | 3268 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,971 psi | 89% | 3281 fps | 97.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,232 psi | 90% | 3337 fps | 99.4% |
| IMR 4895 | <<locked>> | 88% | 56,260 psi | 88% | 3323 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 55,564 psi | 87% | 3248 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,434 psi | 88% | 3268 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,680 psi | 87% | 3215 fps | 99.8% |
| Lovex S062 | <<locked>> | 90% | 56,927 psi | 89% | 3274 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,391 psi | 88% | 3271 fps | 98.3% |
| Lovex S070 | <<locked>> | 98% | 57,377 psi | 90% | 3304 fps | 97.6% |
| Norma 201 | <<locked>> | 86% | 55,158 psi | 86% | 3238 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,782 psi | 87% | 3241 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,609 psi | 90% | 3330 fps | 99.9% |
| Norma URP | <<locked>> | 98% | 55,506 psi | 87% | 3330 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 88% | 54,592 psi | 86% | 3291 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 98% | 54,679 psi | 86% | 3327 fps | 97.8% |
| Ramshot TAC | <<locked>> | 84% | 55,579 psi | 87% | 3255 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,477 psi | 87% | 3278 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,217 psi | 88% | 3241 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,868 psi | 56% | 2113 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,275 psi | 88% | 3268 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,274 psi | 87% | 3356 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,361 psi | 87% | 3399 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,811 psi | 89% | 3369 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,188 psi | 88% | 3399 fps | 99% |
| Rottweil R 901 | <<locked>> | 84% | 55,854 psi | 88% | 3222 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,738 psi | 87% | 3238 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,926 psi | 86% | 3268 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 54,897 psi | 86% | 3235 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,391 psi | 88% | 3271 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,434 psi | 88% | 3268 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,927 psi | 89% | 3274 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,377 psi | 90% | 3304 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,072 psi | 89% | 3340 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,476 psi | 85% | 3235 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,911 psi | 86% | 3258 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,666 psi | 89% | 3179 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,101 psi | 89% | 3173 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,072 psi | 89% | 3222 fps | 97.3% |
| Somchem S321 | <<locked>> | 82% | 56,811 psi | 89% | 3278 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,970 psi | 88% | 3173 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,041 psi | 85% | 3225 fps | 99.6% |
| Somchem S355 | <<locked>> | 92% | 55,114 psi | 86% | 3268 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,027 psi | 85% | 3340 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 55,985 psi | 88% | 3136 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,927 psi | 89% | 3163 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,419 psi | 87% | 3202 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,376 psi | 88% | 3219 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,637 psi | 89% | 3245 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,723 psi | 86% | 3274 fps | 99% |
| Vihtavuori N530 | <<locked>> | 84% | 55,753 psi | 87% | 3245 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,781 psi | 86% | 3212 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,638 psi | 90% | 3337 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,963 psi | 72% | 3189 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,143 psi | 86% | 3248 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,260 psi | 88% | 3297 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,970 psi | 88% | 3340 fps | 97.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,304 psi | 58% | 3091 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,056 psi | 86% | 3271 fps | 99.9% |
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% | 50,517 psi | 79% | 3087 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,337 psi | 68% | 2995 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,705 psi | 79% | 3166 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 51,750 psi | 81% | 3136 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 40,959 psi | 64% | 2982 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 37,449 psi | 59% | 2956 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 46,557 psi | 73% | 3110 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 39,740 psi | 62% | 2940 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,646 psi | 76% | 3127 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 49,530 psi | 78% | 3120 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,859 psi | 67% | 3143 fps | 97.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 47,181 psi | 74% | 3130 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,479 psi | 62% | 2963 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,235 psi | 66% | 3035 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 86% | 37,159 psi | 58% | 2969 fps | 95% |
| Alliant Reloder-17 | 34.3 gr | 80% | 34,142 psi | 54% | 2910 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 34,345 psi | 54% | 2907 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 40,654 psi | 64% | 3133 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,108 psi | 72% | 3110 fps | 97.8% |
| Bofors RP3 | <<locked>> | 80% | 39,363 psi | 62% | 2969 fps | 98.1% |
| Bofors RP7 | <<locked>> | 92% | 51,532 psi | 81% | 3176 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,241 psi | 79% | 3114 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,153 psi | 75% | 3150 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,258 psi | 83% | 3317 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 80% | 39,900 psi | 63% | 2966 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 92% | 48,820 psi | 77% | 3209 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 47,036 psi | 74% | 3127 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 34,040 psi | 53% | 2848 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,366 psi | 68% | 3091 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 92% | 49,023 psi | 77% | 3228 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,382 psi | 41% | 1850 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,107 psi | 71% | 3068 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 46,847 psi | 73% | 3127 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,742 psi | 65% | 2982 fps | 97.3% |
| IMR 4166 Enduron | <<locked>> | 82% | 47,152 psi | 74% | 3068 fps | 95% |
| IMR 4350 | <<locked>> | 96% | 52,315 psi | 82% | 3209 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 50,372 psi | 79% | 3156 fps | 95.7% |
| IMR 4831 | <<locked>> | 88% | 38,667 psi | 61% | 2969 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 43,294 psi | 68% | 3071 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 80% | 48,646 psi | 76% | 3127 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 46,093 psi | 72% | 3091 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,282 psi | 73% | 3041 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 41,495 psi | 65% | 2982 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 43,976 psi | 69% | 3028 fps | 95.7% |
| Lovex S070 | <<locked>> | 92% | 47,587 psi | 75% | 3123 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 45,658 psi | 72% | 3061 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 46,079 psi | 72% | 3071 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,626 psi | 65% | 3018 fps | 97.7% |
| Norma URP | <<locked>> | 88% | 39,972 psi | 63% | 3018 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 41,640 psi | 65% | 3035 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 92% | 44,817 psi | 70% | 3130 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 48,863 psi | 77% | 3127 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,631 psi | 76% | 3153 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,547 psi | 82% | 3179 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,672 psi | 42% | 1893 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 46,006 psi | 72% | 3071 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,933 psi | 70% | 3156 fps | 97.9% |
| ReloadSwiss RS 60 | 34.3 gr | 80% | 36,332 psi | 57% | 2992 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 39,813 psi | 62% | 3031 fps | 95.5% |
| ReloadSwiss RS 70 | 39.2 gr | 90% | 42,453 psi | 67% | 3114 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 49,676 psi | 78% | 3117 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,294 psi | 68% | 3002 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 37,014 psi | 58% | 2904 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 51,532 psi | 81% | 3176 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 43,976 psi | 69% | 3028 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,093 psi | 72% | 3091 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,495 psi | 65% | 2982 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 92% | 47,587 psi | 75% | 3123 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,942 psi | 59% | 2953 fps | 96.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,224 psi | 74% | 3097 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,223 psi | 71% | 3074 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,673 psi | 73% | 3012 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,957 psi | 61% | 2851 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 49,777 psi | 78% | 3091 fps | 95.8% |
| Somchem S321 | <<locked>> | 80% | 53,040 psi | 83% | 3215 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,514 psi | 73% | 3012 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,905 psi | 74% | 3094 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 37,637 psi | 59% | 2907 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 29,443 psi | 46% | 2766 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 52,547 psi | 82% | 3084 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,021 psi | 74% | 3005 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,888 psi | 67% | 2989 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,772 psi | 69% | 2999 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,955 psi | 56% | 2838 fps | 98% |
| Vihtavuori N160 | <<locked>> | 86% | 39,160 psi | 61% | 2959 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 49,023 psi | 77% | 3123 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 42,018 psi | 66% | 2976 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 38,435 psi | 60% | 2953 fps | 95% |
| Vihtavuori N555 | <<locked>> | 94% | 37,536 psi | 59% | 2999 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,792 psi | 50% | 2736 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 49,095 psi | 77% | 3176 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 49,211 psi | 77% | 3215 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 96% | 32,605 psi | 51% | 2933 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,831 psi | 70% | 3081 fps | 98.9% |
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 | Barnes Match Burner BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,422 fps; across all powders the maximum-charge window runs from 2,070 fps to 3,422 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 56–90 %, leaving at least 10 % headroom. The 69.0 gr projectile in 0.224" calls for a 1:9.5 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. ReloadSwiss RS 60, Alliant Reloder-17, ReloadSwiss RS 70 rank at the top here: for 5.6 x 57 with the .224 | 69gr | Barnes Match Burner 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.