Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 120gr | Prvi Partizan HP bullet and 95 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 60 and Alliant Reloder-17.
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% | 57,232 psi | 88% | 3077 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,478 psi | 87% | 3104 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 58,349 psi | 90% | 3176 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,332 psi | 85% | 3094 fps | 96.6% |
| Accurate 4064 | <<locked>> | 90% | 56,449 psi | 87% | 3153 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,942 psi | 88% | 3245 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 86% | 56,652 psi | 87% | 3189 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 57,566 psi | 89% | 3182 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,347 psi | 85% | 3130 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,536 psi | 87% | 3110 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,565 psi | 87% | 3314 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,972 psi | 89% | 3212 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 58,537 psi | 90% | 3235 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,725 psi | 89% | 3304 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,666 psi | 86% | 3284 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,597 psi | 64% | 3009 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,847 psi | 72% | 3186 fps | 98.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,710 psi | 87% | 3202 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 55,143 psi | 85% | 3173 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 58,581 psi | 90% | 3192 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,927 psi | 88% | 3117 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,955 psi | 85% | 3159 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,188 psi | 88% | 3274 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 90% | 55,970 psi | 86% | 3182 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 96% | 55,840 psi | 86% | 3235 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 94% | 56,217 psi | 86% | 3192 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 86% | 57,217 psi | 88% | 3199 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,085 psi | 83% | 3166 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,043 psi | 88% | 3235 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,768 psi | 87% | 3274 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,592 psi | 55% | 1975 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 58,291 psi | 90% | 3199 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,450 psi | 88% | 3182 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,043 psi | 88% | 3166 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,072 psi | 88% | 3146 fps | 97.7% |
| IMR 4350 | <<locked>> | 98% | 55,361 psi | 85% | 3156 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,985 psi | 88% | 3169 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,217 psi | 88% | 3232 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 56,202 psi | 86% | 3209 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 55,347 psi | 85% | 3130 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,637 psi | 87% | 3159 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,796 psi | 86% | 3107 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 56,927 psi | 88% | 3163 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,347 psi | 87% | 3163 fps | 98.7% |
| Lovex S070 | <<locked>> | 98% | 57,493 psi | 88% | 3199 fps | 98% |
| Norma 201 | <<locked>> | 88% | 58,726 psi | 90% | 3182 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,898 psi | 86% | 3130 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,711 psi | 89% | 3222 fps | 100% |
| Norma URP | <<locked>> | 98% | 55,564 psi | 85% | 3225 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 90% | 58,479 psi | 90% | 3245 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 58,363 psi | 90% | 3281 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 55,709 psi | 86% | 3146 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,477 psi | 85% | 3169 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,202 psi | 86% | 3130 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,071 psi | 55% | 2021 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 58,421 psi | 90% | 3166 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,086 psi | 86% | 3159 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,376 psi | 85% | 3248 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,042 psi | 85% | 3281 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,637 psi | 87% | 3264 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,072 psi | 86% | 3294 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 84% | 56,144 psi | 86% | 3114 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,666 psi | 86% | 3127 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 58,610 psi | 90% | 3215 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 58,581 psi | 90% | 3192 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,347 psi | 87% | 3163 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,637 psi | 87% | 3159 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,927 psi | 88% | 3163 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,493 psi | 88% | 3199 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,782 psi | 87% | 3225 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 58,189 psi | 90% | 3186 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 58,624 psi | 90% | 3212 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,434 psi | 87% | 3064 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,058 psi | 88% | 3061 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,898 psi | 88% | 3114 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 56,898 psi | 88% | 3169 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,043 psi | 86% | 3058 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,783 psi | 89% | 3176 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 58,769 psi | 90% | 3215 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,853 psi | 83% | 3228 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 56,231 psi | 87% | 3025 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,724 psi | 87% | 3045 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,564 psi | 85% | 3091 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,376 psi | 87% | 3104 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,637 psi | 87% | 3136 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 58,291 psi | 90% | 3225 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 55,956 psi | 86% | 3133 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 58,262 psi | 90% | 3153 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,261 psi | 88% | 3228 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,861 psi | 71% | 3091 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,810 psi | 84% | 3140 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,188 psi | 86% | 3186 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,144 psi | 86% | 3241 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,376 psi | 58% | 3009 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 58,813 psi | 90% | 3219 fps | 100% |
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% | 50,531 psi | 78% | 2979 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,424 psi | 67% | 2890 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,705 psi | 78% | 3058 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 48,501 psi | 75% | 2972 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 41,046 psi | 63% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 37,478 psi | 58% | 2864 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 46,731 psi | 72% | 3009 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 80% | 39,624 psi | 61% | 2838 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,791 psi | 75% | 3022 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 49,574 psi | 76% | 3009 fps | 100% |
| Alliant Power Pro 2000-MR | 53.4 gr | 80% | 42,815 psi | 66% | 3041 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,537 psi | 61% | 2864 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,380 psi | 65% | 2936 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 37,144 psi | 57% | 2877 fps | 95.8% |
| Alliant Reloder-17 | 52.6 gr | 80% | 34,330 psi | 53% | 2825 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 92% | 32,314 psi | 50% | 2762 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 94% | 37,782 psi | 58% | 2966 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,137 psi | 71% | 3012 fps | 98.2% |
| Bofors RP3 | <<locked>> | 80% | 39,421 psi | 61% | 2871 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 48,472 psi | 75% | 3015 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,299 psi | 77% | 3005 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,095 psi | 74% | 3041 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,142 psi | 82% | 3205 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 80% | 40,103 psi | 62% | 2874 fps | 96% |
| Hodgdon H414 | <<locked>> | 90% | 45,556 psi | 70% | 3041 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 52,895 psi | 81% | 3136 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 47,166 psi | 73% | 3022 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 32,039 psi | 49% | 2700 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,279 psi | 67% | 2986 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 92% | 49,008 psi | 75% | 3130 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,542 psi | 41% | 1768 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,121 psi | 69% | 2966 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 46,992 psi | 72% | 3018 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,626 psi | 64% | 2881 fps | 97.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 47,166 psi | 73% | 2966 fps | 95.6% |
| IMR 4350 | <<locked>> | 94% | 49,023 psi | 75% | 3045 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 47,384 psi | 73% | 2995 fps | 95.5% |
| IMR 4831 | <<locked>> | 86% | 36,042 psi | 55% | 2812 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 43,424 psi | 67% | 2969 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 48,791 psi | 75% | 3022 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 46,151 psi | 71% | 2986 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,398 psi | 71% | 2940 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 41,597 psi | 64% | 2884 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 41,408 psi | 64% | 2874 fps | 95.5% |
| Lovex S070 | <<locked>> | 90% | 44,802 psi | 69% | 2966 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 45,745 psi | 70% | 2959 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 46,195 psi | 71% | 2969 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,742 psi | 64% | 2923 fps | 98.2% |
| Norma URP | <<locked>> | 86% | 37,521 psi | 58% | 2864 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 41,597 psi | 64% | 2936 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 41,742 psi | 64% | 2963 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 48,791 psi | 75% | 3022 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,414 psi | 74% | 3045 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,736 psi | 81% | 3071 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,847 psi | 41% | 1811 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 54,694 psi | 84% | 3110 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 43,163 psi | 66% | 2913 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,831 psi | 69% | 3051 fps | 98.3% |
| ReloadSwiss RS 60 | 52.6 gr | 80% | 36,535 psi | 56% | 2904 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 37,043 psi | 57% | 2874 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 39,595 psi | 61% | 2949 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 49,748 psi | 77% | 3005 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,540 psi | 67% | 2904 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 37,043 psi | 57% | 2808 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 48,472 psi | 75% | 3015 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 41,408 psi | 64% | 2874 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,151 psi | 71% | 2986 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,597 psi | 64% | 2884 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 90% | 44,802 psi | 69% | 2966 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,898 psi | 58% | 2858 fps | 97.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,427 psi | 73% | 2999 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,179 psi | 70% | 2972 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,007 psi | 72% | 2910 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,247 psi | 60% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 46,702 psi | 72% | 2933 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 53,055 psi | 82% | 3107 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,586 psi | 72% | 2907 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,949 psi | 72% | 2992 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 37,710 psi | 58% | 2812 fps | 97.7% |
| Somchem S365 | <<locked>> | 82% | 29,399 psi | 45% | 2680 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 52,881 psi | 81% | 2976 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,355 psi | 73% | 2904 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,207 psi | 66% | 2887 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,816 psi | 67% | 2897 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,984 psi | 55% | 2746 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 36,579 psi | 56% | 2805 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 49,139 psi | 76% | 3018 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 42,221 psi | 65% | 2881 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 38,493 psi | 59% | 2864 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 92% | 35,099 psi | 54% | 2848 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,807 psi | 49% | 2651 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 48,878 psi | 75% | 3064 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 45,788 psi | 70% | 3048 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 94% | 30,618 psi | 47% | 2782 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,831 psi | 69% | 2976 fps | 99.2% |
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 95 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 120gr | Prvi Partizan HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,314 fps; across all powders the maximum-charge window runs from 1,975 fps to 3,314 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 95 of the 95 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 120.0 gr projectile in 0.284" calls for a 1:13.0 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 Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 120gr | Prvi Partizan HP 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.