Load Specifications
Bullet:.284 | 127gr | Geco ZERO LG
Bullet Manufacturer:Geco
Bullet Weight:127 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.026"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:72.6 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:9.0
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 127gr | Geco ZERO LG bullet and 104 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 Alliant Power Pro 2000-MR.
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% | 57,435 psi | 88% | 2982 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,796 psi | 86% | 3009 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,637 psi | 86% | 2999 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 58,146 psi | 89% | 3074 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 55,680 psi | 86% | 3002 fps | 96.6% |
| Accurate 4064 | <<locked>> | 92% | 55,593 psi | 86% | 3048 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 56,115 psi | 86% | 3136 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 88% | 56,753 psi | 87% | 3091 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 57,696 psi | 89% | 3084 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 55,637 psi | 86% | 3035 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 56,492 psi | 87% | 3012 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 57,522 psi | 88% | 3153 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 56,681 psi | 87% | 3215 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 57,566 psi | 89% | 3104 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,695 psi | 87% | 2982 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 58,450 psi | 90% | 3133 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,911 psi | 83% | 3140 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,259 psi | 85% | 3182 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,116 psi | 59% | 2841 fps | 98% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,786 psi | 66% | 3009 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 56,710 psi | 87% | 3104 fps | 99.6% |
| Bofors RP3 | <<locked>> | 94% | 58,436 psi | 90% | 3123 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 58,610 psi | 90% | 3091 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 57,522 psi | 88% | 3022 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 54,911 psi | 84% | 3064 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 57,217 psi | 88% | 3176 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 56,420 psi | 87% | 3031 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 57,377 psi | 88% | 3058 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 55,738 psi | 86% | 3081 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 98% | 55,434 psi | 85% | 3130 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 96% | 56,275 psi | 87% | 3097 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 88% | 57,334 psi | 88% | 3100 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,980 psi | 77% | 3005 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 56,797 psi | 87% | 3133 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 56,724 psi | 87% | 3176 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,201 psi | 54% | 1883 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,071 psi | 85% | 3048 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 57,319 psi | 88% | 3084 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 57,174 psi | 88% | 3068 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 57,290 psi | 88% | 3048 fps | 97.7% |
| IMR 4198 | <<locked>> | 82% | 56,768 psi | 87% | 2943 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,405 psi | 85% | 3061 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 96% | 56,971 psi | 88% | 3071 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,953 psi | 81% | 3068 fps | 99.3% |
| IMR 4895 | <<locked>> | 90% | 56,057 psi | 86% | 3110 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 55,637 psi | 86% | 3035 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 55,840 psi | 86% | 3022 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 56,318 psi | 87% | 3061 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,275 psi | 87% | 3012 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 56,724 psi | 87% | 3061 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,115 psi | 86% | 3061 fps | 98.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 57,290 psi | 88% | 3097 fps | 98% |
| Norma 201 | <<locked>> | 90% | 58,769 psi | 90% | 3084 fps | 100% |
| Norma 202 | <<locked>> | 88% | 55,724 psi | 86% | 3031 fps | 100% |
| Norma 203B | <<locked>> | 92% | 57,609 psi | 89% | 3120 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 55,245 psi | 85% | 3123 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 92% | 58,465 psi | 90% | 3146 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,157 psi | 83% | 3117 fps | 98.1% |
| Ramshot TAC | <<locked>> | 86% | 56,173 psi | 86% | 3054 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,709 psi | 86% | 3074 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 56,608 psi | 87% | 3038 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,665 psi | 55% | 1929 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 58,740 psi | 90% | 3071 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 56,231 psi | 87% | 3064 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,201 psi | 85% | 3146 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,013 psi | 85% | 3186 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 55,825 psi | 86% | 3156 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 55,709 psi | 86% | 3189 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 86% | 55,753 psi | 86% | 3009 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 55,796 psi | 86% | 3028 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 58,276 psi | 90% | 3117 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 58,610 psi | 90% | 3091 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,115 psi | 86% | 3061 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 56,318 psi | 87% | 3061 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 56,724 psi | 87% | 3061 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 57,290 psi | 88% | 3097 fps | 98% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 58,508 psi | 90% | 3045 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 56,623 psi | 87% | 3127 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,827 psi | 89% | 3012 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 58,465 psi | 90% | 3094 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 58,813 psi | 90% | 3110 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,884 psi | 88% | 2969 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 57,290 psi | 88% | 2966 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 56,913 psi | 88% | 3015 fps | 97.6% |
| Somchem S321 | <<locked>> | 84% | 56,898 psi | 88% | 3068 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,231 psi | 87% | 2966 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 57,856 psi | 89% | 3077 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 58,537 psi | 90% | 3114 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,501 psi | 76% | 3068 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 56,434 psi | 87% | 2927 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,087 psi | 88% | 2949 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 55,390 psi | 85% | 2992 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,637 psi | 87% | 3012 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 56,608 psi | 87% | 3038 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 57,972 psi | 89% | 3120 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 86% | 56,391 psi | 87% | 3041 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 58,233 psi | 90% | 3054 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 56,710 psi | 87% | 3120 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,771 psi | 64% | 2927 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 54,679 psi | 84% | 3045 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 56,130 psi | 86% | 3087 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 55,767 psi | 86% | 3136 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,142 psi | 53% | 2825 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 54,984 psi | 85% | 3064 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% | 47,529 psi | 73% | 2835 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 52,185 psi | 80% | 2953 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,784 psi | 61% | 2743 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,253 psi | 73% | 2907 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 48,704 psi | 75% | 2884 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 37,608 psi | 58% | 2730 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 36,521 psi | 56% | 2762 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 43,874 psi | 67% | 2861 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 37,188 psi | 57% | 2694 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,021 psi | 71% | 2874 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 46,209 psi | 71% | 2864 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,954 psi | 83% | 3097 fps | 99.9% |
| Alliant Power Pro 2000-MR | 49.1 gr | 80% | 39,900 psi | 61% | 2881 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,666 psi | 56% | 2717 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,519 psi | 82% | 2940 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,552 psi | 61% | 2785 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,651 psi | 56% | 2779 fps | 95.7% |
| Alliant Reloder-17 | 48.3 gr | 80% | 31,589 psi | 49% | 2667 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,430 psi | 48% | 2661 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 39,842 psi | 61% | 2936 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,192 psi | 66% | 2861 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 36,245 psi | 56% | 2717 fps | 97.9% |
| Bofors RP7 | <<locked>> | 92% | 48,370 psi | 74% | 2917 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,790 psi | 74% | 2864 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,802 psi | 69% | 2890 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,530 psi | 76% | 3045 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 80% | 52,620 psi | 81% | 2976 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 53,650 psi | 83% | 3002 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,202 psi | 57% | 2720 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 92% | 45,295 psi | 70% | 2946 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 94% | 52,634 psi | 81% | 3031 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 44,295 psi | 68% | 2874 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,488 psi | 48% | 2608 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,190 psi | 62% | 2835 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 94% | 48,776 psi | 75% | 3035 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,078 psi | 40% | 1683 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,467 psi | 65% | 2822 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 43,772 psi | 67% | 2871 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,001 psi | 60% | 2733 fps | 97.2% |
| IMR 4166 Enduron | <<locked>> | 84% | 47,253 psi | 73% | 2871 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 53,621 psi | 82% | 2897 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 48,762 psi | 75% | 2946 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 47,297 psi | 73% | 2900 fps | 95.5% |
| IMR 4831 | <<locked>> | 88% | 35,244 psi | 54% | 2713 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 40,553 psi | 62% | 2818 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 80% | 46,021 psi | 71% | 2874 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 51,909 psi | 80% | 2959 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,859 psi | 66% | 2838 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 43,888 psi | 68% | 2795 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 38,769 psi | 60% | 2736 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 41,075 psi | 63% | 2782 fps | 95.4% |
| Lovex S070 | <<locked>> | 92% | 44,222 psi | 68% | 2864 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 42,815 psi | 66% | 2812 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 43,105 psi | 66% | 2818 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,914 psi | 60% | 2776 fps | 97.7% |
| Norma URP | <<locked>> | 88% | 36,825 psi | 57% | 2766 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 38,551 psi | 59% | 2785 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 92% | 41,292 psi | 64% | 2867 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 46,006 psi | 71% | 2874 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,368 psi | 70% | 2894 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,763 psi | 77% | 2923 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,353 psi | 41% | 1722 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,677 psi | 80% | 2963 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,047 psi | 66% | 2822 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,655 psi | 64% | 2894 fps | 97.7% |
| ReloadSwiss RS 60 | 48.3 gr | 80% | 33,707 psi | 52% | 2743 fps | 98.7% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 36,390 psi | 56% | 2779 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 39,291 psi | 60% | 2854 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 46,615 psi | 72% | 2858 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,553 psi | 62% | 2753 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 34,011 psi | 52% | 2654 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 92% | 48,370 psi | 74% | 2917 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,075 psi | 63% | 2782 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,859 psi | 66% | 2838 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 38,769 psi | 60% | 2736 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 92% | 44,222 psi | 68% | 2864 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 54,679 psi | 84% | 2986 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,201 psi | 54% | 2710 fps | 96.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 54,578 psi | 84% | 2966 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,005 psi | 68% | 2841 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,424 psi | 65% | 2825 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,353 psi | 68% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,796 psi | 57% | 2621 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 46,398 psi | 71% | 2838 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 49,835 psi | 77% | 2956 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,874 psi | 67% | 2769 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,947 psi | 68% | 2844 fps | 98.6% |
| Somchem S355 | <<locked>> | 80% | 34,954 psi | 54% | 2667 fps | 97% |
| Somchem S365 | <<locked>> | 84% | 28,703 psi | 44% | 2585 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 50,140 psi | 77% | 2838 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,715 psi | 69% | 2766 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,176 psi | 62% | 2746 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,930 psi | 63% | 2753 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,272 psi | 51% | 2602 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 36,071 psi | 55% | 2710 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 46,108 psi | 71% | 2871 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 39,407 psi | 61% | 2736 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 38,058 psi | 59% | 2772 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 94% | 33,997 psi | 52% | 2746 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,589 psi | 49% | 2569 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 45,643 psi | 70% | 2913 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 45,295 psi | 70% | 2946 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,894 psi | 49% | 2753 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,887 psi | 64% | 2828 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 104 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 127gr | Geco ZERO LG. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,215 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,215 fps. Accurate 4350 gives the best case fill at 100 %, and 104 of the 104 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 127.0 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-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 Reloder-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 127gr | Geco ZERO LG 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.