Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 135gr | Sierra HPBT 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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 56,840 psi | 89% | 3130 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,970 psi | 88% | 3153 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 53,911 psi | 84% | 3166 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,810 psi | 86% | 3136 fps | 96% |
| Accurate 4064 | <<locked>> | 90% | 56,057 psi | 88% | 3202 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,376 psi | 88% | 3287 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 56,202 psi | 88% | 3235 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 57,116 psi | 90% | 3228 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,868 psi | 86% | 3179 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,057 psi | 88% | 3163 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,159 psi | 88% | 3360 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 56,927 psi | 89% | 3248 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,276 psi | 90% | 3255 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,476 psi | 85% | 3222 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,087 psi | 89% | 3346 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,143 psi | 86% | 3330 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,205 psi | 65% | 3041 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,572 psi | 73% | 3222 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,144 psi | 88% | 3245 fps | 99.3% |
| Bofors RP3 | <<locked>> | 90% | 54,621 psi | 86% | 3215 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,650 psi | 86% | 3179 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,579 psi | 89% | 3166 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,650 psi | 86% | 3209 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,565 psi | 89% | 3317 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 90% | 55,390 psi | 87% | 3225 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 96% | 55,390 psi | 87% | 3274 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 86% | 56,768 psi | 89% | 3248 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,664 psi | 84% | 3212 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,405 psi | 88% | 3278 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,289 psi | 88% | 3314 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,505 psi | 56% | 2021 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,273 psi | 85% | 3189 fps | 99.8% |
| IMR 3031 | <<locked>> | 86% | 56,811 psi | 89% | 3235 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,695 psi | 89% | 3215 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,521 psi | 89% | 3189 fps | 97.2% |
| IMR 4350 | <<locked>> | 98% | 55,071 psi | 86% | 3202 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,362 psi | 88% | 3212 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,753 psi | 89% | 3274 fps | 99.4% |
| IMR 4895 | <<locked>> | 88% | 55,898 psi | 88% | 3258 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 54,868 psi | 86% | 3179 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,057 psi | 88% | 3205 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,419 psi | 87% | 3156 fps | 99.8% |
| Lovex S062 | <<locked>> | 90% | 56,463 psi | 88% | 3212 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,927 psi | 88% | 3205 fps | 98.3% |
| Lovex S070 | <<locked>> | 98% | 57,058 psi | 89% | 3241 fps | 97.5% |
| Norma 201 | <<locked>> | 86% | 54,708 psi | 86% | 3173 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,390 psi | 87% | 3179 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,246 psi | 90% | 3268 fps | 99.9% |
| Norma URP | <<locked>> | 98% | 55,129 psi | 86% | 3271 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 88% | 54,273 psi | 85% | 3232 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 98% | 53,983 psi | 85% | 3258 fps | 97.7% |
| Ramshot TAC | <<locked>> | 84% | 55,332 psi | 87% | 3192 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,085 psi | 86% | 3215 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,811 psi | 87% | 3179 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,013 psi | 56% | 2067 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,753 psi | 87% | 3205 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,969 psi | 86% | 3294 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,737 psi | 86% | 3330 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,086 psi | 88% | 3304 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,521 psi | 87% | 3333 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 84% | 55,680 psi | 87% | 3163 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,419 psi | 87% | 3176 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,404 psi | 85% | 3205 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 54,650 psi | 86% | 3179 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,927 psi | 88% | 3205 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,057 psi | 88% | 3205 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,463 psi | 88% | 3212 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,058 psi | 89% | 3241 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,231 psi | 88% | 3271 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 53,954 psi | 85% | 3169 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,650 psi | 86% | 3199 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,057 psi | 88% | 3114 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,579 psi | 89% | 3110 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,492 psi | 89% | 3156 fps | 97.2% |
| Somchem S321 | <<locked>> | 82% | 56,246 psi | 88% | 3212 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,521 psi | 87% | 3107 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,276 psi | 90% | 3222 fps | 99.8% |
| Somchem S355 | <<locked>> | 92% | 54,781 psi | 86% | 3205 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,272 psi | 83% | 3274 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 55,767 psi | 87% | 3077 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,333 psi | 88% | 3097 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,216 psi | 87% | 3143 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,869 psi | 88% | 3153 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,202 psi | 88% | 3182 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,056 psi | 85% | 3209 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 84% | 55,390 psi | 87% | 3179 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,711 psi | 90% | 3199 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,826 psi | 89% | 3271 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,353 psi | 71% | 3127 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,404 psi | 85% | 3186 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,622 psi | 87% | 3232 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,622 psi | 87% | 3281 fps | 97.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,014 psi | 58% | 3031 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,578 psi | 86% | 3205 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% | 50,154 psi | 79% | 3025 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,989 psi | 67% | 2936 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,270 psi | 79% | 3104 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 51,445 psi | 81% | 3077 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 40,596 psi | 64% | 2923 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 37,057 psi | 58% | 2897 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 46,253 psi | 72% | 3051 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 39,421 psi | 62% | 2881 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,327 psi | 76% | 3064 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 49,052 psi | 77% | 3058 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,438 psi | 67% | 3077 fps | 97.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,891 psi | 73% | 3068 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,044 psi | 61% | 2904 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,945 psi | 66% | 2972 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 86% | 36,811 psi | 58% | 2907 fps | 95% |
| Alliant Reloder-17 | 63.3 gr | 80% | 33,924 psi | 53% | 2854 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 33,968 psi | 53% | 2851 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 40,147 psi | 63% | 3068 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,745 psi | 72% | 3051 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 38,972 psi | 61% | 2907 fps | 98% |
| Bofors RP7 | <<locked>> | 92% | 51,314 psi | 80% | 3117 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,980 psi | 78% | 3054 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,674 psi | 75% | 3084 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,765 psi | 83% | 3251 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 80% | 39,639 psi | 62% | 2907 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 92% | 48,370 psi | 76% | 3146 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 46,746 psi | 73% | 3064 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 33,736 psi | 53% | 2789 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,902 psi | 67% | 3025 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 94% | 52,272 psi | 82% | 3241 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,397 psi | 41% | 1808 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,773 psi | 70% | 3009 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 46,586 psi | 73% | 3064 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,394 psi | 65% | 2920 fps | 97.3% |
| IMR 4166 Enduron | <<locked>> | 84% | 49,850 psi | 78% | 3068 fps | 95.8% |
| IMR 4350 | <<locked>> | 96% | 51,677 psi | 81% | 3143 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 49,966 psi | 78% | 3094 fps | 95.7% |
| IMR 4831 | <<locked>> | 88% | 38,072 psi | 60% | 2904 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 43,004 psi | 67% | 3009 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 80% | 48,327 psi | 76% | 3064 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 45,847 psi | 72% | 3031 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,122 psi | 72% | 2982 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 41,321 psi | 65% | 2927 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 43,627 psi | 68% | 2969 fps | 95.6% |
| Lovex S070 | <<locked>> | 92% | 47,152 psi | 74% | 3061 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 45,353 psi | 71% | 2999 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 45,629 psi | 72% | 3009 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,336 psi | 65% | 2963 fps | 97.7% |
| Norma URP | <<locked>> | 88% | 39,552 psi | 62% | 2956 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 41,205 psi | 65% | 2972 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 92% | 44,150 psi | 69% | 3064 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 48,559 psi | 76% | 3064 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,167 psi | 75% | 3087 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,286 psi | 82% | 3117 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,760 psi | 42% | 1850 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 45,788 psi | 72% | 3015 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,483 psi | 70% | 3091 fps | 97.8% |
| ReloadSwiss RS 60 | 63.3 gr | 80% | 36,129 psi | 57% | 2933 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 39,349 psi | 62% | 2972 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 42,047 psi | 66% | 3051 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 49,284 psi | 77% | 3051 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,207 psi | 68% | 2946 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 36,651 psi | 57% | 2844 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 51,314 psi | 80% | 3117 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 43,627 psi | 68% | 2969 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,847 psi | 72% | 3031 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,321 psi | 65% | 2927 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 92% | 47,152 psi | 74% | 3061 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,608 psi | 59% | 2894 fps | 96.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,804 psi | 73% | 3035 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,904 psi | 70% | 3015 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,644 psi | 73% | 2956 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,943 psi | 61% | 2802 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 49,327 psi | 77% | 3031 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 52,605 psi | 82% | 3153 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,209 psi | 72% | 2953 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,543 psi | 73% | 3035 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 37,347 psi | 59% | 2851 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 29,080 psi | 46% | 2707 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 52,533 psi | 82% | 3028 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,007 psi | 74% | 2949 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,801 psi | 67% | 2933 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,352 psi | 68% | 2940 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,607 psi | 56% | 2782 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 86% | 38,812 psi | 61% | 2900 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 48,646 psi | 76% | 3061 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 41,756 psi | 65% | 2917 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 38,247 psi | 60% | 2897 fps | 95% |
| Vihtavuori N555 | <<locked>> | 94% | 37,072 psi | 58% | 2940 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 33,707 psi | 53% | 2746 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 48,399 psi | 76% | 3107 fps | 99.9% |
| Winchester 760 | 71.3 gr | 92% | 48,588 psi | 76% | 3150 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 96% | 32,430 psi | 51% | 2881 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,454 psi | 70% | 3018 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 113 powders for .308 Norma Mag. loaded with the .308 | 135gr | Sierra HPBT MatchKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,360 fps; across all powders the maximum-charge window runs from 2,021 fps to 3,360 fps. Accurate 3100 gives the best case fill at 100 %, and 113 of the 113 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 135.0 gr projectile in 0.308" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2209 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 .308 Norma Mag. with the .308 | 135gr | Sierra HPBT MatchKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate High Country, ADI AR 2209, Alliant Reloder-19 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.