Load Specifications
Load data in caliber 6.8 Western with .277 | 100gr | Barnes Solid 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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 57,261 psi | 88% | 3307 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,724 psi | 87% | 3330 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 58,407 psi | 90% | 3402 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,390 psi | 85% | 3310 fps | 96% |
| Accurate 4064 | <<locked>> | 90% | 56,855 psi | 87% | 3383 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,334 psi | 88% | 3468 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 56,608 psi | 87% | 3412 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 92% | 57,856 psi | 89% | 3412 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,434 psi | 85% | 3360 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,521 psi | 87% | 3340 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,855 psi | 87% | 3543 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 58,189 psi | 90% | 3438 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 58,523 psi | 90% | 3461 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 58,044 psi | 89% | 3530 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,898 psi | 86% | 3510 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,829 psi | 64% | 3205 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,384 psi | 73% | 3392 fps | 97.7% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,797 psi | 87% | 3425 fps | 99.3% |
| Bofors RP3 | <<locked>> | 90% | 55,332 psi | 85% | 3396 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,187 psi | 85% | 3350 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,116 psi | 88% | 3343 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,245 psi | 85% | 3386 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,435 psi | 88% | 3504 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 90% | 56,115 psi | 86% | 3402 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 96% | 56,130 psi | 86% | 3455 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 86% | 57,203 psi | 88% | 3425 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,447 psi | 84% | 3386 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,159 psi | 88% | 3458 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,101 psi | 88% | 3491 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,418 psi | 54% | 2152 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 58,407 psi | 90% | 3428 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,261 psi | 88% | 3415 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,188 psi | 88% | 3392 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,043 psi | 88% | 3363 fps | 97.1% |
| IMR 4350 | <<locked>> | 98% | 55,927 psi | 86% | 3379 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,000 psi | 88% | 3389 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,725 psi | 89% | 3455 fps | 99.4% |
| IMR 4895 | <<locked>> | 88% | 56,289 psi | 87% | 3435 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 55,434 psi | 85% | 3360 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,695 psi | 87% | 3386 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,912 psi | 86% | 3333 fps | 99.7% |
| Lovex S062 | <<locked>> | 90% | 57,072 psi | 88% | 3389 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,623 psi | 87% | 3383 fps | 98.3% |
| Lovex S070 | <<locked>> | 98% | 57,841 psi | 89% | 3422 fps | 97.6% |
| Norma 201 | <<locked>> | 86% | 55,332 psi | 85% | 3353 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,941 psi | 86% | 3356 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,696 psi | 89% | 3445 fps | 99.8% |
| Norma URP | <<locked>> | 98% | 55,970 psi | 86% | 3448 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 88% | 55,027 psi | 85% | 3409 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 98% | 54,926 psi | 85% | 3435 fps | 97.7% |
| Ramshot TAC | <<locked>> | 84% | 55,912 psi | 86% | 3369 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,709 psi | 86% | 3392 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,289 psi | 87% | 3353 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,056 psi | 55% | 2205 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 58,262 psi | 90% | 3392 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,333 psi | 87% | 3379 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,666 psi | 86% | 3478 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,405 psi | 85% | 3514 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,261 psi | 88% | 3488 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,507 psi | 87% | 3517 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 84% | 55,956 psi | 86% | 3337 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,999 psi | 86% | 3353 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,187 psi | 85% | 3383 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 55,187 psi | 85% | 3350 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,623 psi | 87% | 3383 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,695 psi | 87% | 3386 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,072 psi | 88% | 3389 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,841 psi | 89% | 3422 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,029 psi | 88% | 3448 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 58,291 psi | 90% | 3409 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,288 psi | 85% | 3376 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,463 psi | 87% | 3291 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,246 psi | 88% | 3284 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,000 psi | 88% | 3327 fps | 97.2% |
| Somchem S321 | <<locked>> | 82% | 56,971 psi | 88% | 3392 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,144 psi | 86% | 3284 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,899 psi | 89% | 3396 fps | 99.8% |
| Somchem S355 | <<locked>> | 92% | 55,259 psi | 85% | 3379 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,404 psi | 84% | 3455 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 56,202 psi | 86% | 3251 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,710 psi | 87% | 3271 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,724 psi | 86% | 3317 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,536 psi | 87% | 3330 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,971 psi | 88% | 3360 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 58,639 psi | 90% | 3448 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 84% | 56,028 psi | 86% | 3356 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 58,436 psi | 90% | 3376 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,754 psi | 89% | 3448 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,209 psi | 71% | 3297 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,274 psi | 85% | 3356 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,333 psi | 87% | 3412 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,420 psi | 87% | 3461 fps | 97.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,724 psi | 58% | 3202 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,216 psi | 85% | 3386 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% | 50,546 psi | 78% | 3199 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,352 psi | 67% | 3100 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,778 psi | 78% | 3274 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 51,996 psi | 80% | 3245 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 40,959 psi | 63% | 3087 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 40,176 psi | 62% | 3123 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 46,804 psi | 72% | 3222 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 39,610 psi | 61% | 3038 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,834 psi | 75% | 3238 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 49,516 psi | 76% | 3232 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,815 psi | 66% | 3245 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,479 psi | 61% | 3068 fps | 97.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,424 psi | 65% | 3143 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 39,494 psi | 61% | 3133 fps | 95.8% |
| Alliant Reloder-17 | 55.1 gr | 80% | 34,185 psi | 53% | 3009 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 94% | 34,447 psi | 53% | 3005 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 40,915 psi | 63% | 3235 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,311 psi | 71% | 3222 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 39,262 psi | 60% | 3064 fps | 97.9% |
| Bofors RP7 | <<locked>> | 92% | 51,750 psi | 80% | 3284 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,444 psi | 78% | 3225 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,109 psi | 74% | 3258 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,287 psi | 82% | 3428 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 80% | 40,074 psi | 62% | 3068 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 92% | 48,994 psi | 75% | 3317 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 47,239 psi | 73% | 3238 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 34,258 psi | 53% | 2949 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,395 psi | 67% | 3196 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 92% | 49,313 psi | 76% | 3340 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,397 psi | 41% | 1929 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,194 psi | 70% | 3176 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 46,978 psi | 72% | 3238 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,568 psi | 64% | 3081 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 84% | 50,140 psi | 77% | 3235 fps | 95.6% |
| IMR 4350 | <<locked>> | 96% | 52,257 psi | 80% | 3314 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 50,328 psi | 77% | 3261 fps | 95.6% |
| IMR 4831 | <<locked>> | 88% | 38,725 psi | 60% | 3068 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 43,497 psi | 67% | 3179 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 48,834 psi | 75% | 3238 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 46,296 psi | 71% | 3199 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 46,354 psi | 71% | 3150 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 41,568 psi | 64% | 3087 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 44,208 psi | 68% | 3136 fps | 95.6% |
| Lovex S070 | <<locked>> | 92% | 47,805 psi | 74% | 3232 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 45,658 psi | 70% | 3169 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 46,079 psi | 71% | 3182 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,814 psi | 64% | 3127 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 40,103 psi | 62% | 3120 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 41,597 psi | 64% | 3136 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 92% | 44,802 psi | 69% | 3232 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 48,979 psi | 75% | 3235 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,660 psi | 75% | 3261 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,692 psi | 81% | 3287 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,847 psi | 41% | 1978 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 54,665 psi | 84% | 3337 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 46,209 psi | 71% | 3179 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,991 psi | 69% | 3264 fps | 97.8% |
| ReloadSwiss RS 60 | 55.1 gr | 80% | 36,390 psi | 56% | 3094 fps | 98.8% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 40,045 psi | 62% | 3136 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 42,641 psi | 66% | 3219 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 49,588 psi | 76% | 3225 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,540 psi | 67% | 3114 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 36,956 psi | 57% | 3002 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 92% | 51,750 psi | 80% | 3284 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 44,208 psi | 68% | 3136 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,296 psi | 71% | 3199 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 41,568 psi | 64% | 3087 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 92% | 47,805 psi | 74% | 3232 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,029 psi | 59% | 3058 fps | 96.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,355 psi | 73% | 3205 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,295 psi | 70% | 3182 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,847 psi | 72% | 3123 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,131 psi | 60% | 2959 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 50,009 psi | 77% | 3199 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 53,243 psi | 82% | 3330 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,543 psi | 72% | 3120 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,152 psi | 73% | 3202 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 37,637 psi | 58% | 3009 fps | 96.9% |
| Somchem S365 | <<locked>> | 84% | 31,430 psi | 48% | 2923 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 52,750 psi | 81% | 3199 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,210 psi | 73% | 3117 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,018 psi | 66% | 3097 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,671 psi | 67% | 3100 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,868 psi | 55% | 2936 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 39,146 psi | 60% | 3061 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 48,892 psi | 75% | 3228 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 42,192 psi | 65% | 3084 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 41,394 psi | 64% | 3123 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 94% | 37,782 psi | 58% | 3104 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 34,185 psi | 53% | 2900 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 48,936 psi | 75% | 3281 fps | 99.9% |
| Winchester 760 | 62.1 gr | 92% | 49,226 psi | 76% | 3320 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 96% | 32,866 psi | 51% | 3035 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,889 psi | 69% | 3186 fps | 98.8% |
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 6.8 Western loaded with the .277 | 100gr | Barnes Solid. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,543 fps; across all powders the maximum-charge window runs from 2,152 fps to 3,543 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 (448 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.277" calls for a 1:11.0 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 6.8 Western with the .277 | 100gr | Barnes Solid 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.