Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 103gr | Sax MJG-SX bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and ReloadSwiss RS 60.
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.
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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>> | 88% | 55,564 psi | 85% | 3258 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 58,146 psi | 89% | 3340 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 57,421 psi | 88% | 3330 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 55,985 psi | 86% | 3346 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 56,927 psi | 88% | 3366 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,153 psi | 76% | 3294 fps | 96.9% |
| Accurate LT-30 | <<locked>> | 84% | 58,378 psi | 90% | 3255 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 58,769 psi | 90% | 3284 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 58,450 psi | 90% | 3409 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 96% | 55,898 psi | 86% | 3340 fps | 98.6% |
| ADI AR 2219 | <<locked>> | 82% | 55,825 psi | 86% | 3333 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 57,566 psi | 89% | 3363 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 90% | 57,464 psi | 88% | 3346 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 55,347 psi | 85% | 3422 fps | 99.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 58,334 psi | 90% | 3530 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 55,245 psi | 85% | 3363 fps | 99.5% |
| Alliant Reloder-10x | <<locked>> | 86% | 58,653 psi | 90% | 3327 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 56,289 psi | 87% | 3389 fps | 98.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,356 psi | 74% | 3301 fps | 96.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 56,347 psi | 87% | 3488 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 57,827 psi | 89% | 3241 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 58,494 psi | 90% | 3419 fps | 98.7% |
| Bofors RP3 | <<locked>> | 96% | 56,101 psi | 86% | 3383 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 88% | 55,999 psi | 86% | 3291 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 56,942 psi | 88% | 3392 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 86% | 54,737 psi | 84% | 3428 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 86% | 58,378 psi | 90% | 3373 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 55,695 psi | 86% | 3333 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 57,479 psi | 88% | 3389 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 90% | 55,361 psi | 85% | 3363 fps | 99.3% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,440 psi | 68% | 3169 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 58,320 psi | 90% | 3455 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,606 psi | 53% | 2087 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 56,782 psi | 87% | 3366 fps | 99.4% |
| IMR 3031 | <<locked>> | 92% | 58,175 psi | 89% | 3412 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 55,187 psi | 85% | 3320 fps | 98.6% |
| IMR 4198 | <<locked>> | 86% | 58,581 psi | 90% | 3284 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 58,668 psi | 90% | 3366 fps | 95.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,775 psi | 72% | 3228 fps | 96.4% |
| IMR 4895 | <<locked>> | 94% | 57,696 psi | 89% | 3428 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 90% | 57,566 psi | 89% | 3363 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 86% | 57,986 psi | 89% | 3346 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 57,899 psi | 89% | 3383 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 58,276 psi | 90% | 3330 fps | 99.3% |
| Lovex S062 | <<locked>> | 96% | 58,305 psi | 90% | 3379 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 53,969 psi | 83% | 3294 fps | 96.4% |
| Norma 200 | <<locked>> | 82% | 58,726 psi | 90% | 3297 fps | 100% |
| Norma 201 | <<locked>> | 92% | 57,014 psi | 88% | 3350 fps | 99.8% |
| Norma 202 | <<locked>> | 92% | 57,479 psi | 88% | 3360 fps | 100% |
| Norma 203B | <<locked>> | 94% | 55,361 psi | 85% | 3376 fps | 99% |
| Norma URPᴾ | <<locked>> | 100% | 48,892 psi | 75% | 3291 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 94% | 55,999 psi | 86% | 3399 fps | 99% |
| Ramshot TAC | <<locked>> | 90% | 58,508 psi | 90% | 3373 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 90% | 57,754 psi | 89% | 3396 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 55,463 psi | 85% | 3304 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,969 psi | 54% | 2133 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 57,145 psi | 88% | 3350 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 58,262 psi | 90% | 3366 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 56,449 psi | 87% | 3465 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 56,289 psi | 87% | 3501 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,153 psi | 76% | 3317 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 90% | 57,798 psi | 89% | 3340 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 57,493 psi | 88% | 3346 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 98% | 55,651 psi | 86% | 3366 fps | 99.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 53,969 psi | 83% | 3294 fps | 96.4% |
| Shooters World Match Rifle | <<locked>> | 92% | 57,899 psi | 89% | 3383 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 58,305 psi | 90% | 3379 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 57,203 psi | 88% | 3314 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 57,856 psi | 89% | 2979 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 56,434 psi | 87% | 3343 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 57,638 psi | 89% | 3432 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 56,086 psi | 86% | 3297 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 56,637 psi | 87% | 3343 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 56,971 psi | 88% | 3373 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 55,506 psi | 85% | 3241 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 55,506 psi | 85% | 3232 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 55,390 psi | 85% | 3337 fps | 99.7% |
| Somchem S335 | <<locked>> | 92% | 58,073 psi | 89% | 3287 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 56,086 psi | 86% | 3337 fps | 99% |
| Somchem S355 | <<locked>> | 98% | 56,173 psi | 86% | 3366 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,526 psi | 67% | 3225 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 88% | 58,697 psi | 90% | 3264 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 55,463 psi | 85% | 3228 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 56,478 psi | 87% | 3314 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 58,189 psi | 90% | 3333 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 58,088 psi | 89% | 3350 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,401 psi | 79% | 3291 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 90% | 58,378 psi | 90% | 3363 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 56,449 psi | 87% | 3327 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,575 psi | 78% | 3294 fps | 96.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,939 psi | 81% | 3281 fps | 99.2% |
| Winchester 748 | <<locked>> | 90% | 57,856 psi | 89% | 3415 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 56,942 psi | 88% | 3386 fps | 99.5% |
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% | 43,279 psi | 67% | 3048 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,210 psi | 73% | 3156 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 35,839 psi | 55% | 2930 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 42,380 psi | 65% | 3091 fps | 99.1% |
| Accurate 4064 | <<locked>> | 80% | 33,852 psi | 52% | 2900 fps | 98.1% |
| Accurate 4350 | <<locked>> | 96% | 42,801 psi | 66% | 3166 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 51,576 psi | 79% | 3150 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 51,938 psi | 80% | 3173 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 39,711 psi | 61% | 3031 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 86% | 40,915 psi | 63% | 3038 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 52,243 psi | 80% | 3274 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,684 psi | 64% | 3054 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 80% | 41,031 psi | 63% | 3074 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,327 psi | 74% | 3287 fps | 98.4% |
| Alliant Power Pro 2000-MR | 54.4 gr | 86% | 44,135 psi | 68% | 3238 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 35,201 psi | 54% | 2933 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,907 psi | 75% | 3169 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 40,611 psi | 62% | 3071 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 96% | 42,728 psi | 66% | 3173 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 88% | 37,550 psi | 58% | 3071 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,937 psi | 78% | 3133 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 44,570 psi | 69% | 3153 fps | 95.9% |
| Bofors RP3 | <<locked>> | 82% | 34,824 psi | 54% | 2933 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,700 psi | 67% | 3058 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,379 psi | 62% | 3068 fps | 97.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,048 psi | 68% | 3215 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 80% | 47,732 psi | 73% | 3196 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,660 psi | 75% | 3212 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 47,152 psi | 73% | 3199 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 39,987 psi | 62% | 3045 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 36,579 psi | 56% | 2979 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,100 psi | 56% | 2995 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,686 psi | 40% | 1867 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,580 psi | 59% | 2995 fps | 95.9% |
| IMR 3031 | <<locked>> | 80% | 38,986 psi | 60% | 3061 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 40,408 psi | 62% | 3022 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 49,023 psi | 75% | 3133 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 55,376 psi | 85% | 3314 fps | 95.1% |
| IMR 4831 | <<locked>> | 98% | 43,903 psi | 68% | 3166 fps | 95.6% |
| IMR 4895 | <<locked>> | 82% | 38,914 psi | 60% | 3045 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 41,684 psi | 64% | 3054 fps | 97.6% |
| Lovex D073.5 | <<locked>> | 80% | 47,123 psi | 72% | 3156 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 38,392 psi | 59% | 3012 fps | 98.3% |
| Lovex S060 | <<locked>> | 80% | 40,408 psi | 62% | 2979 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 35,317 psi | 54% | 2907 fps | 95.7% |
| Lovex S065 | <<locked>> | 98% | 50,908 psi | 78% | 3238 fps | 95.8% |
| Norma 200 | <<locked>> | 80% | 55,013 psi | 85% | 3241 fps | 100% |
| Norma 201 | <<locked>> | 80% | 38,986 psi | 60% | 2989 fps | 96.9% |
| Norma 202 | <<locked>> | 80% | 39,146 psi | 60% | 3009 fps | 99% |
| Norma 203B | <<locked>> | 84% | 39,943 psi | 61% | 3058 fps | 95.8% |
| Norma URP | <<locked>> | 96% | 42,757 psi | 66% | 3159 fps | 95% |
| Ramshot Big Game | <<locked>> | 84% | 39,697 psi | 61% | 3068 fps | 95.4% |
| Ramshot TAC | <<locked>> | 84% | 47,805 psi | 74% | 3173 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,002 psi | 63% | 3064 fps | 96% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,527 psi | 70% | 3114 fps | 97.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,889 psi | 40% | 1913 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,036 psi | 72% | 3169 fps | 99.5% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,331 psi | 84% | 3301 fps | 95.7% |
| ReloadSwiss RS 52 | 51.6 gr | 84% | 42,554 psi | 65% | 3189 fps | 95.8% |
| ReloadSwiss RS 60 | 51.1 gr | 82% | 32,648 psi | 50% | 2940 fps | 95.7% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 45,658 psi | 70% | 3245 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 42,815 psi | 66% | 3061 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 80% | 37,014 psi | 57% | 2930 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 86% | 37,391 psi | 58% | 2992 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 50,908 psi | 78% | 3238 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,392 psi | 59% | 3012 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 35,317 psi | 54% | 2907 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,879 psi | 77% | 3186 fps | 98.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 54,839 psi | 84% | 2936 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 52,692 psi | 81% | 3281 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 38,740 psi | 60% | 3048 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,574 psi | 76% | 3192 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 45,977 psi | 71% | 3140 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,406 psi | 59% | 2992 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,596 psi | 62% | 2963 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,446 psi | 51% | 2799 fps | 98.5% |
| Somchem S321 | <<locked>> | 80% | 45,208 psi | 70% | 3146 fps | 98.6% |
| Somchem S335 | <<locked>> | 80% | 40,074 psi | 62% | 2963 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 39,682 psi | 61% | 3009 fps | 95.5% |
| Somchem S355 | <<locked>> | 86% | 38,319 psi | 59% | 3002 fps | 95.8% |
| Somchem S365 | <<locked>> | 92% | 33,533 psi | 52% | 2963 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 45,977 psi | 71% | 3058 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,741 psi | 63% | 2969 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,085 psi | 56% | 2933 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 36,912 psi | 57% | 2930 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 82% | 31,981 psi | 49% | 2808 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 96% | 45,150 psi | 69% | 3166 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 41,858 psi | 64% | 3054 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 80% | 35,665 psi | 55% | 2910 fps | 98.1% |
| Vihtavuori N550 | <<locked>> | 96% | 44,353 psi | 68% | 3166 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 37,710 psi | 58% | 2959 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 41,046 psi | 63% | 3094 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,565 psi | 58% | 2989 fps | 95.7% |
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 93 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 103gr | Sax MJG-SX. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,530 fps; across all powders the maximum-charge window runs from 2,087 fps to 3,530 fps. Accurate 4350 gives the best case fill at 100 %, and 93 of the 93 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 103.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 52, ReloadSwiss RS 60 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 103gr | Sax MJG-SX 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.