Load Specifications
Load data in caliber 6.8 Western with .277 | 100gr | Lehigh Defense Controlled Chaos 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 Hodgdon H414.
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% | 57,624 psi | 89% | 3314 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,087 psi | 88% | 3337 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,261 psi | 88% | 3396 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 57,334 psi | 88% | 3330 fps | 96.5% |
| Accurate 4064 | <<locked>> | 90% | 57,145 psi | 88% | 3389 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,870 psi | 89% | 3478 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 86% | 57,116 psi | 88% | 3422 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 58,334 psi | 90% | 3422 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,999 psi | 86% | 3369 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,884 psi | 88% | 3346 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,377 psi | 88% | 3556 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 58,755 psi | 90% | 3448 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,434 psi | 85% | 3412 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 58,494 psi | 90% | 3540 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,376 psi | 87% | 3520 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,206 psi | 65% | 3219 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,993 psi | 74% | 3412 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,276 psi | 88% | 3432 fps | 99.4% |
| Bofors RP3 | <<locked>> | 90% | 55,898 psi | 86% | 3406 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,651 psi | 86% | 3360 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,363 psi | 88% | 3350 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,796 psi | 86% | 3396 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,740 psi | 89% | 3510 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 90% | 56,637 psi | 87% | 3415 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 96% | 56,884 psi | 88% | 3471 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 94% | 57,087 psi | 88% | 3425 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 86% | 57,769 psi | 89% | 3438 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,955 psi | 85% | 3396 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,711 psi | 89% | 3468 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,754 psi | 89% | 3507 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,491 psi | 55% | 2159 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,332 psi | 85% | 3376 fps | 99.8% |
| IMR 3031 | <<locked>> | 86% | 57,943 psi | 89% | 3425 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,725 psi | 89% | 3406 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,551 psi | 89% | 3376 fps | 97.3% |
| IMR 4350 | <<locked>> | 98% | 56,333 psi | 87% | 3389 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,450 psi | 88% | 3399 fps | 97.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 58,233 psi | 90% | 3465 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 56,869 psi | 87% | 3448 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 55,999 psi | 86% | 3369 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,261 psi | 88% | 3396 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,173 psi | 86% | 3340 fps | 99.8% |
| Lovex S062 | <<locked>> | 90% | 57,580 psi | 89% | 3399 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,072 psi | 88% | 3392 fps | 98.4% |
| Lovex S070 | <<locked>> | 98% | 58,291 psi | 90% | 3432 fps | 97.7% |
| Norma 201 | <<locked>> | 86% | 55,637 psi | 86% | 3360 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,492 psi | 87% | 3366 fps | 100% |
| Norma 203B | <<locked>> | 90% | 58,247 psi | 90% | 3455 fps | 99.9% |
| Norma URP | <<locked>> | 98% | 56,507 psi | 87% | 3458 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 88% | 55,521 psi | 85% | 3419 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 98% | 55,666 psi | 86% | 3451 fps | 97.9% |
| Ramshot TAC | <<locked>> | 84% | 56,318 psi | 87% | 3379 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,231 psi | 87% | 3402 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,811 psi | 87% | 3366 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,129 psi | 56% | 2211 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,797 psi | 87% | 3389 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,985 psi | 86% | 3484 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,956 psi | 86% | 3524 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,740 psi | 89% | 3497 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 57,232 psi | 88% | 3530 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 84% | 56,565 psi | 87% | 3350 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,275 psi | 87% | 3360 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,709 psi | 86% | 3392 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 55,651 psi | 86% | 3360 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,072 psi | 88% | 3392 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,261 psi | 88% | 3396 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,580 psi | 89% | 3399 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 58,291 psi | 90% | 3432 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,522 psi | 88% | 3458 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 58,798 psi | 90% | 3419 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,550 psi | 85% | 3383 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,014 psi | 88% | 3301 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,508 psi | 88% | 3287 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,450 psi | 88% | 3337 fps | 97.3% |
| Somchem S321 | <<locked>> | 82% | 57,522 psi | 88% | 3402 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,405 psi | 87% | 3291 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 58,392 psi | 90% | 3409 fps | 99.8% |
| Somchem S355 | <<locked>> | 92% | 55,796 psi | 86% | 3389 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,911 psi | 84% | 3461 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 56,550 psi | 87% | 3258 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,305 psi | 88% | 3281 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,028 psi | 86% | 3323 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,116 psi | 88% | 3340 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,464 psi | 88% | 3366 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,332 psi | 85% | 3396 fps | 99% |
| Vihtavuori N530 | <<locked>> | 84% | 56,565 psi | 87% | 3369 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,376 psi | 85% | 3330 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 58,160 psi | 89% | 3458 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,934 psi | 72% | 3314 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,680 psi | 86% | 3366 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,869 psi | 87% | 3422 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,884 psi | 88% | 3471 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,043 psi | 59% | 3212 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,738 psi | 86% | 3396 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% | 50,937 psi | 78% | 3209 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,932 psi | 68% | 3114 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,777 psi | 77% | 3271 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 53,621 psi | 82% | 3261 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 41,524 psi | 64% | 3100 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 37,913 psi | 58% | 3068 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 47,094 psi | 72% | 3232 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 40,089 psi | 62% | 3051 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,168 psi | 76% | 3245 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 49,922 psi | 77% | 3238 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,294 psi | 67% | 3261 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,769 psi | 61% | 3074 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,728 psi | 66% | 3150 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 86% | 37,434 psi | 58% | 3077 fps | 95% |
| Alliant Reloder-17 | 55.6 gr | 80% | 34,621 psi | 53% | 3022 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 34,809 psi | 54% | 3018 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 41,481 psi | 64% | 3251 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,557 psi | 72% | 3228 fps | 97.8% |
| Bofors RP3 | <<locked>> | 80% | 39,784 psi | 61% | 3081 fps | 98.1% |
| Bofors RP7 | <<locked>> | 92% | 52,199 psi | 80% | 3297 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,734 psi | 78% | 3235 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,646 psi | 75% | 3268 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,824 psi | 83% | 3442 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 80% | 40,538 psi | 62% | 3084 fps | 95.4% |
| Hodgdon H414 | 62.5 gr | 92% | 49,458 psi | 76% | 3330 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 92% | 53,345 psi | 82% | 3356 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 47,529 psi | 73% | 3248 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 34,476 psi | 53% | 2956 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,874 psi | 67% | 3209 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 92% | 49,908 psi | 77% | 3353 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,527 psi | 41% | 1936 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,498 psi | 70% | 3189 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 47,340 psi | 73% | 3248 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,076 psi | 65% | 3097 fps | 97.3% |
| IMR 4166 Enduron | <<locked>> | 82% | 47,529 psi | 73% | 3182 fps | 95% |
| IMR 4350 | <<locked>> | 96% | 52,924 psi | 81% | 3327 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 90% | 50,763 psi | 78% | 3274 fps | 95.8% |
| IMR 4831 | <<locked>> | 88% | 38,972 psi | 60% | 3074 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 43,787 psi | 67% | 3186 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 49,168 psi | 76% | 3245 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 46,615 psi | 72% | 3209 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,862 psi | 72% | 3163 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 42,090 psi | 65% | 3100 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 44,454 psi | 68% | 3143 fps | 95.7% |
| Lovex S070 | <<locked>> | 92% | 48,225 psi | 74% | 3241 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 46,209 psi | 71% | 3182 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 46,398 psi | 71% | 3189 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,090 psi | 65% | 3136 fps | 97.7% |
| Norma URP | <<locked>> | 88% | 40,582 psi | 62% | 3133 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 42,090 psi | 65% | 3153 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 92% | 45,208 psi | 70% | 3245 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 49,414 psi | 76% | 3245 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,907 psi | 75% | 3268 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,185 psi | 82% | 3301 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,789 psi | 41% | 1982 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 46,659 psi | 72% | 3192 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,295 psi | 70% | 3274 fps | 97.9% |
| ReloadSwiss RS 60 | 55.6 gr | 80% | 36,825 psi | 57% | 3107 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 40,509 psi | 62% | 3150 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 43,047 psi | 66% | 3232 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 50,169 psi | 77% | 3238 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,830 psi | 67% | 3120 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 37,275 psi | 57% | 3012 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 52,199 psi | 80% | 3297 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 44,454 psi | 68% | 3143 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,615 psi | 72% | 3209 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,090 psi | 65% | 3100 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 92% | 48,225 psi | 74% | 3241 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,305 psi | 59% | 3064 fps | 96.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,863 psi | 74% | 3219 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,600 psi | 70% | 3189 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,152 psi | 73% | 3130 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,407 psi | 61% | 2966 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 47,282 psi | 73% | 3146 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 53,534 psi | 82% | 3337 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,065 psi | 72% | 3130 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,369 psi | 73% | 3209 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 38,130 psi | 59% | 3022 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 29,617 psi | 46% | 2867 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 53,084 psi | 82% | 3205 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,529 psi | 73% | 3123 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,366 psi | 67% | 3107 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,005 psi | 68% | 3110 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,158 psi | 56% | 2943 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 86% | 39,595 psi | 61% | 3071 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 49,429 psi | 76% | 3245 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 42,685 psi | 66% | 3097 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 39,030 psi | 60% | 3068 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 92% | 35,708 psi | 55% | 3048 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,140 psi | 49% | 2841 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 49,516 psi | 76% | 3294 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 49,690 psi | 76% | 3330 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 96% | 33,315 psi | 51% | 3054 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,382 psi | 70% | 3196 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 111 powders for 6.8 Western loaded with the .277 | 100gr | Lehigh Defense Controlled Chaos. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,556 fps; across all powders the maximum-charge window runs from 2,159 fps to 3,556 fps. Accurate 3100 gives the best case fill at 100 %, and 111 of the 111 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 55–90 %, 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. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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, Hodgdon H414 rank at the top here: for 6.8 Western with the .277 | 100gr | Lehigh Defense Controlled Chaos they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.