Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 120gr | Hornady V-MAX bullet and 97 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, Hodgdon Superformance 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.
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% | 56,565 psi | 87% | 3064 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 58,624 psi | 90% | 3143 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,535 psi | 85% | 3087 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,493 psi | 88% | 3159 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 58,407 psi | 90% | 3140 fps | 97% |
| Accurate 4064 | <<locked>> | 90% | 55,521 psi | 85% | 3136 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,840 psi | 86% | 3222 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 86% | 55,811 psi | 86% | 3169 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 56,782 psi | 87% | 3166 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 58,262 psi | 90% | 3173 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,782 psi | 86% | 3097 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,811 psi | 86% | 3297 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,203 psi | 88% | 3196 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 57,450 psi | 88% | 3215 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,724 psi | 87% | 3284 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 58,595 psi | 90% | 3330 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,828 psi | 63% | 2986 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,093 psi | 71% | 3166 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,724 psi | 86% | 3179 fps | 99.5% |
| Bofors RP3 | <<locked>> | 92% | 57,943 psi | 89% | 3212 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 57,885 psi | 89% | 3176 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,420 psi | 87% | 3100 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,899 psi | 89% | 3202 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,260 psi | 87% | 3255 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 90% | 55,245 psi | 85% | 3166 fps | 99% |
| Hodgdon H414 | <<locked>> | 98% | 58,813 psi | 90% | 3281 fps | 98% |
| Hodgdon H4350 | <<locked>> | 94% | 55,230 psi | 85% | 3173 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 56,434 psi | 87% | 3182 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,026 psi | 82% | 3143 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,941 psi | 86% | 3212 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,724 psi | 86% | 3251 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,534 psi | 55% | 1969 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,493 psi | 88% | 3182 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,434 psi | 87% | 3166 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,246 psi | 87% | 3150 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,101 psi | 86% | 3123 fps | 97.4% |
| IMR 4350ᴾ | <<locked>> | 100% | 58,204 psi | 90% | 3199 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,043 psi | 86% | 3150 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,231 psi | 87% | 3212 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 55,376 psi | 85% | 3192 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 58,262 psi | 90% | 3173 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 58,784 psi | 90% | 3156 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,796 psi | 86% | 3146 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 58,479 psi | 90% | 3143 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 56,115 psi | 86% | 3146 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,680 psi | 86% | 3146 fps | 98.5% |
| Lovex S070 | <<locked>> | 98% | 56,536 psi | 87% | 3179 fps | 97.8% |
| Norma 201 | <<locked>> | 88% | 57,899 psi | 89% | 3166 fps | 100% |
| Norma 202 | <<locked>> | 88% | 58,552 psi | 90% | 3166 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,623 psi | 87% | 3199 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 58,508 psi | 90% | 3268 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 57,725 psi | 89% | 3232 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,203 psi | 88% | 3258 fps | 98.5% |
| Ramshot TAC | <<locked>> | 86% | 58,682 psi | 90% | 3192 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 86% | 58,450 psi | 90% | 3212 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,463 psi | 85% | 3114 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,027 psi | 55% | 2014 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,551 psi | 89% | 3150 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,376 psi | 85% | 3143 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 58,407 psi | 90% | 3294 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 58,218 psi | 90% | 3327 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,666 psi | 86% | 3241 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 54,940 psi | 85% | 3271 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 86% | 58,697 psi | 90% | 3146 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 58,668 psi | 90% | 3166 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 57,754 psi | 89% | 3199 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 57,885 psi | 89% | 3176 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,680 psi | 86% | 3146 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,796 psi | 86% | 3146 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,115 psi | 86% | 3146 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,536 psi | 87% | 3179 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,796 psi | 86% | 3205 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,188 psi | 88% | 3166 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 57,914 psi | 89% | 3196 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,869 psi | 86% | 3051 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,260 psi | 87% | 3045 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,999 psi | 86% | 3094 fps | 97.4% |
| Somchem S321 | <<locked>> | 82% | 56,115 psi | 86% | 3153 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 58,639 psi | 90% | 3094 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,811 psi | 87% | 3156 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 57,986 psi | 89% | 3199 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,808 psi | 81% | 3209 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 58,813 psi | 90% | 3058 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,115 psi | 86% | 3035 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 58,247 psi | 90% | 3123 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,564 psi | 85% | 3091 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,898 psi | 86% | 3120 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,276 psi | 88% | 3205 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 55,158 psi | 85% | 3117 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,551 psi | 89% | 3136 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,289 psi | 87% | 3209 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,889 psi | 69% | 3071 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 57,783 psi | 89% | 3179 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,347 psi | 85% | 3169 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 58,813 psi | 90% | 3281 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,550 psi | 56% | 2979 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 58,059 psi | 89% | 3202 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% | 49,864 psi | 77% | 2963 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 54,795 psi | 84% | 3087 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,728 psi | 66% | 2877 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,125 psi | 77% | 3045 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 51,126 psi | 79% | 3015 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 40,408 psi | 62% | 2867 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 36,709 psi | 56% | 2841 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 46,166 psi | 71% | 2995 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 80% | 39,117 psi | 60% | 2822 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,196 psi | 74% | 3005 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 48,791 psi | 75% | 2995 fps | 100% |
| Alliant Power Pro 2000-MR | 52.6 gr | 80% | 42,105 psi | 65% | 3022 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,972 psi | 60% | 2848 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,800 psi | 64% | 2920 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 36,521 psi | 56% | 2854 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,736 psi | 52% | 2805 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 92% | 31,662 psi | 49% | 2736 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 96% | 39,813 psi | 61% | 3015 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,397 psi | 70% | 2992 fps | 98% |
| Bofors RP3 | <<locked>> | 80% | 38,696 psi | 60% | 2851 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 47,776 psi | 74% | 2995 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,705 psi | 76% | 2989 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,311 psi | 73% | 3025 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,272 psi | 80% | 3186 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 80% | 39,595 psi | 61% | 2858 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 92% | 48,080 psi | 74% | 3087 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 92% | 51,938 psi | 80% | 3110 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 46,586 psi | 72% | 3005 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 31,589 psi | 49% | 2684 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,699 psi | 66% | 2972 fps | 99.1% |
| Hodgdon Superformance | 63 gr | 92% | 48,254 psi | 74% | 3110 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,382 psi | 41% | 1759 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,585 psi | 69% | 2949 fps | 99% |
| IMR 3031 | <<locked>> | 80% | 46,282 psi | 71% | 3002 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,046 psi | 63% | 2861 fps | 97.6% |
| IMR 4166 Enduron | <<locked>> | 82% | 46,470 psi | 71% | 2946 fps | 95.3% |
| IMR 4350 | <<locked>> | 94% | 48,138 psi | 74% | 3022 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 46,717 psi | 72% | 2979 fps | 95.2% |
| IMR 4831 | <<locked>> | 88% | 37,927 psi | 58% | 2854 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 42,844 psi | 66% | 2956 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 80% | 48,196 psi | 74% | 3005 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 54,926 psi | 85% | 3100 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,527 psi | 70% | 2972 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,803 psi | 70% | 2923 fps | 98.9% |
| Lovex S062 | <<locked>> | 80% | 41,031 psi | 63% | 2867 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 40,741 psi | 63% | 2854 fps | 95.1% |
| Lovex S070 | <<locked>> | 92% | 46,992 psi | 72% | 3005 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 45,107 psi | 69% | 2943 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 45,556 psi | 70% | 2953 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,191 psi | 63% | 2907 fps | 98% |
| Norma URP | <<locked>> | 86% | 36,796 psi | 57% | 2841 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 40,843 psi | 63% | 2917 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 43,787 psi | 67% | 3009 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 48,080 psi | 74% | 3002 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,906 psi | 74% | 3031 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,967 psi | 80% | 3054 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,876 psi | 41% | 1804 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,838 psi | 83% | 3094 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 45,411 psi | 70% | 2956 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,237 psi | 68% | 3035 fps | 98.1% |
| ReloadSwiss RS 60 | 51.8 gr | 80% | 35,882 psi | 55% | 2881 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 39,044 psi | 60% | 2920 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 41,800 psi | 64% | 2999 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 49,081 psi | 76% | 2992 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,931 psi | 66% | 2887 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 80% | 36,303 psi | 56% | 2789 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 90% | 47,776 psi | 74% | 2995 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 86% | 40,741 psi | 63% | 2854 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,527 psi | 70% | 2972 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,031 psi | 63% | 2867 fps | 99% |
| Shooters World SW4350 | <<locked>> | 92% | 46,992 psi | 72% | 3005 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,376 psi | 58% | 2841 fps | 96.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,659 psi | 72% | 2979 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,628 psi | 69% | 2956 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,383 psi | 71% | 2894 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,682 psi | 60% | 2743 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 46,006 psi | 71% | 2917 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 52,257 psi | 80% | 3087 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,035 psi | 71% | 2894 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,195 psi | 71% | 2976 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 37,130 psi | 57% | 2799 fps | 97.4% |
| Somchem S365 | <<locked>> | 82% | 28,819 psi | 44% | 2657 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 52,228 psi | 80% | 2963 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,717 psi | 72% | 2887 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,511 psi | 65% | 2871 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,004 psi | 66% | 2877 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,288 psi | 54% | 2726 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 86% | 38,479 psi | 59% | 2848 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 48,298 psi | 74% | 2999 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 41,684 psi | 64% | 2864 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 37,840 psi | 58% | 2841 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 92% | 34,389 psi | 53% | 2828 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,343 psi | 48% | 2635 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 48,283 psi | 74% | 3051 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 45,092 psi | 69% | 3028 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 96% | 32,126 psi | 49% | 2831 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,309 psi | 68% | 2963 fps | 99% |
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 97 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 120gr | Hornady V-MAX. Alliant Reloder-17 delivers the highest muzzle velocity at 3,330 fps; across all powders the maximum-charge window runs from 1,969 fps to 3,330 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 97 of the 97 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 1:12.0 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, Hodgdon Superformance, ReloadSwiss RS 60 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 120gr | Hornady V-MAX 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.