Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 110gr | Impala LWHV LS bullet and 96 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>> | 86% | 58,189 psi | 90% | 3182 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 57,043 psi | 88% | 3212 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 58,146 psi | 89% | 3219 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,274 psi | 85% | 3219 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 57,551 psi | 89% | 3261 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 56,492 psi | 87% | 3320 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 88% | 56,927 psi | 88% | 3278 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 94% | 57,899 psi | 89% | 3271 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,057 psi | 86% | 3228 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 86% | 56,623 psi | 87% | 3215 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 57,827 psi | 89% | 3353 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 56,391 psi | 87% | 3396 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 58,030 psi | 89% | 3301 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,421 psi | 88% | 3189 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 58,610 psi | 90% | 3323 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,766 psi | 83% | 3317 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 98% | 58,769 psi | 90% | 3425 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,421 psi | 61% | 3018 fps | 96.7% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 56,739 psi | 87% | 3284 fps | 98.9% |
| Bofors RP3 | <<locked>> | 92% | 55,550 psi | 85% | 3264 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 57,711 psi | 89% | 3212 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,651 psi | 86% | 3261 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 57,116 psi | 88% | 3363 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 82% | 56,347 psi | 87% | 3228 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 57,711 psi | 89% | 3255 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,420 psi | 87% | 3268 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 98% | 55,448 psi | 85% | 3307 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 88% | 57,493 psi | 88% | 3291 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,154 psi | 77% | 3182 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 56,768 psi | 87% | 3320 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,723 psi | 55% | 2031 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 58,421 psi | 90% | 3287 fps | 99.8% |
| IMR 3031 | <<locked>> | 88% | 57,348 psi | 88% | 3284 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 57,305 psi | 88% | 3251 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 90% | 57,377 psi | 88% | 3222 fps | 96.3% |
| IMR 4198 | <<locked>> | 82% | 56,884 psi | 88% | 3143 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,000 psi | 88% | 3245 fps | 96.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,388 psi | 82% | 3248 fps | 98.4% |
| IMR 4895 | <<locked>> | 90% | 56,434 psi | 87% | 3301 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 86% | 56,057 psi | 86% | 3228 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 56,869 psi | 87% | 3219 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,159 psi | 88% | 3261 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,362 psi | 87% | 3196 fps | 99.4% |
| Lovex S062 | <<locked>> | 92% | 57,435 psi | 88% | 3258 fps | 99.9% |
| Lovex S065 | <<locked>> | 98% | 56,710 psi | 87% | 3241 fps | 97.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 57,624 psi | 89% | 3278 fps | 96.7% |
| Norma 201 | <<locked>> | 88% | 56,217 psi | 86% | 3228 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 56,376 psi | 87% | 3228 fps | 100% |
| Norma 203B | <<locked>> | 92% | 57,798 psi | 89% | 3310 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 55,085 psi | 85% | 3304 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 92% | 58,407 psi | 90% | 3333 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,128 psi | 83% | 3291 fps | 96.8% |
| Ramshot TAC | <<locked>> | 86% | 56,318 psi | 87% | 3235 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,796 psi | 86% | 3258 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 84% | 56,985 psi | 88% | 3225 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,027 psi | 55% | 2073 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,332 psi | 85% | 3209 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 56,536 psi | 87% | 3241 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,129 psi | 85% | 3333 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 58,610 psi | 90% | 3432 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 55,883 psi | 86% | 3337 fps | 98.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 55,695 psi | 86% | 3360 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 86% | 57,624 psi | 89% | 3219 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,710 psi | 87% | 3222 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 55,405 psi | 85% | 3255 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,710 psi | 87% | 3241 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,159 psi | 88% | 3261 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,435 psi | 88% | 3258 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 57,624 psi | 89% | 3278 fps | 96.7% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 58,523 psi | 90% | 3228 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 56,449 psi | 87% | 3307 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,827 psi | 89% | 3212 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 58,740 psi | 90% | 3271 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,274 psi | 85% | 3238 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,363 psi | 88% | 3163 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 57,392 psi | 88% | 3153 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,377 psi | 88% | 3189 fps | 96.3% |
| Somchem S321 | <<locked>> | 84% | 57,696 psi | 89% | 3268 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,913 psi | 88% | 3159 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 57,957 psi | 89% | 3264 fps | 99.5% |
| Somchem S355 | <<locked>> | 96% | 58,813 psi | 90% | 3301 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,617 psi | 76% | 3248 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 84% | 57,159 psi | 88% | 3130 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,305 psi | 88% | 3146 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 55,898 psi | 86% | 3192 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,652 psi | 87% | 3199 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,029 psi | 88% | 3228 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 57,522 psi | 88% | 3294 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 86% | 56,507 psi | 87% | 3228 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 58,697 psi | 90% | 3248 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 56,869 psi | 87% | 3304 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,641 psi | 66% | 3107 fps | 96.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 58,581 psi | 90% | 3278 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 56,173 psi | 86% | 3278 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 55,448 psi | 85% | 3307 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,376 psi | 85% | 3251 fps | 99.6% |
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% | 48,791 psi | 75% | 3035 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,592 psi | 82% | 3156 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,815 psi | 66% | 2963 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,602 psi | 75% | 3107 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 40,408 psi | 62% | 2946 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 40,654 psi | 63% | 3015 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 44,860 psi | 69% | 3045 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 80% | 38,189 psi | 59% | 2871 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,688 psi | 72% | 3058 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 46,920 psi | 72% | 3064 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 54,288 psi | 84% | 3291 fps | 99.5% |
| Alliant Power Pro 2000-MR | 50.5 gr | 80% | 40,654 psi | 63% | 3054 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,043 psi | 59% | 2904 fps | 96.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,201 psi | 83% | 3140 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,741 psi | 63% | 2969 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 90% | 39,929 psi | 61% | 3009 fps | 95% |
| Alliant Reloder-17 | 51 gr | 82% | 35,259 psi | 54% | 2913 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 37,115 psi | 57% | 2956 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,801 psi | 67% | 3038 fps | 96.4% |
| Bofors RP3 | <<locked>> | 80% | 38,029 psi | 59% | 2910 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,443 psi | 75% | 3051 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,774 psi | 70% | 3081 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,806 psi | 77% | 3228 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 80% | 52,852 psi | 81% | 3173 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 53,925 psi | 83% | 3196 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 43,758 psi | 67% | 3025 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 52,025 psi | 80% | 3245 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 45,208 psi | 70% | 3061 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 34,911 psi | 54% | 2841 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,002 psi | 63% | 3018 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,731 psi | 41% | 1818 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,105 psi | 66% | 2999 fps | 97.8% |
| IMR 3031 | <<locked>> | 80% | 44,614 psi | 69% | 3068 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,074 psi | 62% | 2913 fps | 96% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,012 psi | 83% | 3163 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 53,592 psi | 82% | 3094 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 53,650 psi | 83% | 3186 fps | 95.5% |
| IMR 4831 | <<locked>> | 92% | 41,423 psi | 64% | 3012 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 41,640 psi | 64% | 3005 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 80% | 46,688 psi | 72% | 3058 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 53,214 psi | 82% | 3159 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 44,193 psi | 68% | 3031 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 44,686 psi | 69% | 2976 fps | 97.8% |
| Lovex S062 | <<locked>> | 80% | 40,379 psi | 62% | 2930 fps | 98% |
| Lovex S065 | <<locked>> | 92% | 47,601 psi | 73% | 3074 fps | 95.7% |
| Lovex S070 | <<locked>> | 96% | 51,242 psi | 79% | 3163 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 44,498 psi | 68% | 3005 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 44,237 psi | 68% | 3015 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 40,147 psi | 62% | 2959 fps | 96.6% |
| Norma URP | <<locked>> | 90% | 40,292 psi | 62% | 3002 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 39,465 psi | 61% | 2963 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 96% | 47,543 psi | 73% | 3163 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 46,717 psi | 72% | 3051 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,006 psi | 71% | 3074 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,328 psi | 77% | 3107 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 42% | 1860 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,996 psi | 80% | 3153 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 49,850 psi | 77% | 3117 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,206 psi | 65% | 3074 fps | 96.5% |
| ReloadSwiss RS 60 | 49.7 gr | 80% | 34,983 psi | 54% | 2920 fps | 97.7% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,830 psi | 66% | 3084 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 45,687 psi | 70% | 3153 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 48,588 psi | 75% | 3064 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,380 psi | 65% | 2953 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 35,984 psi | 55% | 2851 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 92% | 47,601 psi | 73% | 3074 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,193 psi | 68% | 3031 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 40,379 psi | 62% | 2930 fps | 98% |
| Shooters World SW4350 | <<locked>> | 96% | 51,242 psi | 79% | 3163 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 55,042 psi | 85% | 3173 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,245 psi | 56% | 2884 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 54,505 psi | 84% | 3159 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,208 psi | 70% | 3022 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,163 psi | 66% | 3005 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,237 psi | 70% | 2956 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,797 psi | 58% | 2802 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 53,766 psi | 83% | 3130 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 50,589 psi | 78% | 3146 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 45,208 psi | 70% | 2963 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,657 psi | 69% | 3022 fps | 97.6% |
| Somchem S355 | <<locked>> | 80% | 36,695 psi | 56% | 2854 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 32,401 psi | 50% | 2831 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 50,749 psi | 78% | 3031 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,281 psi | 70% | 2949 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,408 psi | 64% | 2940 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,916 psi | 64% | 2940 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 34,780 psi | 54% | 2785 fps | 96.9% |
| Vihtavuori N160 | <<locked>> | 90% | 42,061 psi | 65% | 3005 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 46,760 psi | 72% | 3051 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 80% | 40,538 psi | 62% | 2923 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 41,756 psi | 64% | 3009 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 96% | 37,826 psi | 58% | 2992 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 35,215 psi | 54% | 2805 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 46,267 psi | 71% | 3100 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 52,025 psi | 80% | 3245 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,772 psi | 66% | 3012 fps | 97.8% |
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 96 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 110gr | Impala LWHV LS. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,432 fps; across all powders the maximum-charge window runs from 2,031 fps to 3,432 fps. Accurate 4350 gives the best case fill at 100 %, and 96 of the 96 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 110.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 | 110gr | Impala LWHV LS 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.