Load Specifications
Bullet Manufacturer:Barnes
Bullet Weight:140 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:7 mm Rem. Ultra Mag. load data
Case Length (l3):2.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:112 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:10.0
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 140gr | Barnes TTSX BT bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N570, Hodgdon Retumbo and ReloadSwiss RS 76.
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 3100 | <<locked>> | 88% | 57,740 psi | 90% | 2972 fps | 100% |
| Accurate 3100 | <<locked>> | 88% | 57,740 psi | 90% | 2972 fps | 100% |
| Accurate High Country | <<locked>> | 84% | 56,014 psi | 88% | 3074 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 86% | 57,159 psi | 90% | 3081 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 86% | 57,159 psi | 90% | 3081 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 84% | 55,361 psi | 87% | 3015 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 84% | 55,361 psi | 87% | 3015 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 86% | 53,882 psi | 84% | 3022 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 86% | 53,882 psi | 84% | 3022 fps | 99.4% |
| ADI AR 2217 | <<locked>> | 96% | 56,985 psi | 89% | 3054 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 96% | 56,985 psi | 89% | 3054 fps | 99.9% |
| ADI AR 2218 | <<locked>> | 98% | 53,954 psi | 85% | 3097 fps | 97.8% |
| ADI AR 2218 | <<locked>> | 98% | 53,954 psi | 85% | 3097 fps | 97.8% |
| ADI AR 2225 | <<locked>> | 98% | 56,347 psi | 88% | 3074 fps | 100% |
| ADI AR 2225 | <<locked>> | 98% | 56,347 psi | 88% | 3074 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 55,521 psi | 87% | 3012 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 84% | 54,926 psi | 86% | 3002 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 84% | 54,926 psi | 86% | 3002 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 86% | 54,331 psi | 85% | 3015 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 86% | 54,331 psi | 85% | 3015 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 88% | 56,130 psi | 88% | 2982 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 88% | 56,130 psi | 88% | 2982 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 56,956 psi | 89% | 3051 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 56,956 psi | 89% | 3051 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 57,203 psi | 90% | 3068 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 57,203 psi | 90% | 3068 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 55,637 psi | 87% | 3074 fps | 97.9% |
| Alliant Reloder-33 | <<locked>> | 96% | 55,637 psi | 87% | 3074 fps | 97.9% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 55,535 psi | 87% | 3058 fps | 97.4% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 55,535 psi | 87% | 3058 fps | 97.4% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 54,810 psi | 86% | 2979 fps | 97.8% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 54,810 psi | 86% | 2979 fps | 97.8% |
| Bofors RP15 | <<locked>> | 90% | 57,624 psi | 90% | 3064 fps | 100% |
| Bofors RP15 | <<locked>> | 90% | 57,624 psi | 90% | 3064 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 56,681 psi | 89% | 3064 fps | 99.9% |
| Bofors RP30 | <<locked>> | 94% | 56,681 psi | 89% | 3064 fps | 99.9% |
| Bofors RP5 | <<locked>> | 86% | 54,331 psi | 85% | 3015 fps | 99.9% |
| Bofors RP5 | <<locked>> | 86% | 54,331 psi | 85% | 3015 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 92% | 54,462 psi | 85% | 3018 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 92% | 54,462 psi | 85% | 3018 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 86% | 56,840 psi | 89% | 3015 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 86% | 56,840 psi | 89% | 3015 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 86% | 55,593 psi | 87% | 2995 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 86% | 55,593 psi | 87% | 2995 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 55,303 psi | 87% | 2923 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 55,303 psi | 87% | 2923 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 56,130 psi | 88% | 3136 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 56,130 psi | 88% | 3136 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,623 psi | 59% | 2005 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,623 psi | 59% | 2005 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 57,334 psi | 90% | 2989 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 57,334 psi | 90% | 2989 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 56,927 psi | 89% | 2995 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 86% | 56,927 psi | 89% | 2995 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 88% | 56,318 psi | 88% | 3064 fps | 99.7% |
| IMR 7828 SSC | <<locked>> | 88% | 56,318 psi | 88% | 3064 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 55,013 psi | 86% | 3045 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 55,013 psi | 86% | 3045 fps | 99.8% |
| Lovex S071 | <<locked>> | 92% | 55,854 psi | 88% | 2946 fps | 100% |
| Lovex S071 | <<locked>> | 92% | 55,854 psi | 88% | 2946 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 56,275 psi | 88% | 3068 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 56,275 psi | 88% | 3068 fps | 100% |
| Norma MRP | <<locked>> | 84% | 54,447 psi | 85% | 3028 fps | 100% |
| Norma MRP | <<locked>> | 84% | 54,447 psi | 85% | 3028 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 53,577 psi | 84% | 3022 fps | 99.6% |
| Ramshot Grand | <<locked>> | 86% | 53,577 psi | 84% | 3022 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 90% | 56,405 psi | 88% | 3009 fps | 100% |
| Ramshot Magnum | <<locked>> | 90% | 56,405 psi | 88% | 3009 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,522 psi | 60% | 2047 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,522 psi | 60% | 2047 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 57,609 psi | 90% | 3123 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 57,609 psi | 90% | 3123 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 56,884 psi | 89% | 3084 fps | 99.4% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 56,884 psi | 89% | 3084 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 84% | 55,782 psi | 87% | 2986 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 84% | 55,782 psi | 87% | 2986 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 84% | 54,578 psi | 86% | 2992 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 84% | 54,578 psi | 86% | 2992 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 54,201 psi | 85% | 2986 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 54,201 psi | 85% | 2986 fps | 99.9% |
| Somchem S361 | <<locked>> | 84% | 57,334 psi | 90% | 2966 fps | 99.4% |
| Somchem S361 | <<locked>> | 84% | 57,334 psi | 90% | 2966 fps | 99.4% |
| Somchem S365 | <<locked>> | 82% | 57,551 psi | 90% | 2982 fps | 100% |
| Somchem S365 | <<locked>> | 82% | 57,551 psi | 90% | 2982 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 54,781 psi | 86% | 2956 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 54,781 psi | 86% | 2956 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 55,027 psi | 86% | 2943 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 55,027 psi | 86% | 2943 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 54,476 psi | 85% | 2953 fps | 96% |
| Vihtavuori N170 | <<locked>> | 92% | 54,476 psi | 85% | 2953 fps | 96% |
| Vihtavuori N555 | <<locked>> | 84% | 53,940 psi | 85% | 2956 fps | 100% |
| Vihtavuori N555 | <<locked>> | 84% | 53,940 psi | 85% | 2956 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 53,882 psi | 84% | 3028 fps | 99.1% |
| Vihtavuori N560 | <<locked>> | 84% | 53,882 psi | 84% | 3028 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 90% | 55,071 psi | 86% | 3022 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 90% | 55,071 psi | 86% | 3022 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 94% | 57,261 psi | 90% | 3091 fps | 99.1% |
| Vihtavuori N568 | <<locked>> | 94% | 57,261 psi | 90% | 3091 fps | 99.1% |
| Vihtavuori N570 | <<locked>> | 94% | 54,476 psi | 85% | 3084 fps | 97.2% |
| Vihtavuori N570 | <<locked>> | 94% | 54,476 psi | 85% | 3084 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 88% | 56,840 psi | 89% | 3064 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 88% | 56,840 psi | 89% | 3064 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 54,897 psi | 86% | 2956 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 86% | 54,897 psi | 86% | 2956 fps | 99.9% |
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 3100 | <<locked>> | 80% | 43,569 psi | 68% | 2749 fps | 99.8% |
| Accurate 3100 | <<locked>> | 80% | 43,569 psi | 68% | 2749 fps | 99.8% |
| Accurate High Country | <<locked>> | 80% | 48,414 psi | 76% | 2943 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 80% | 45,919 psi | 72% | 2881 fps | 97.1% |
| Accurate MAGPRO | <<locked>> | 80% | 45,919 psi | 72% | 2881 fps | 97.1% |
| ADI AR 2209 | <<locked>> | 80% | 48,022 psi | 75% | 2890 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 80% | 48,022 psi | 75% | 2890 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 80% | 43,236 psi | 68% | 2825 fps | 97.4% |
| ADI AR 2213 | <<locked>> | 80% | 43,236 psi | 68% | 2825 fps | 97.4% |
| ADI AR 2217 | <<locked>> | 84% | 36,898 psi | 58% | 2674 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 84% | 36,898 psi | 58% | 2674 fps | 95.8% |
| ADI AR 2218 | <<locked>> | 94% | 46,180 psi | 72% | 2943 fps | 95.3% |
| ADI AR 2218 | <<locked>> | 94% | 46,180 psi | 72% | 2943 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 80% | 29,254 psi | 46% | 2503 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 80% | 29,254 psi | 46% | 2503 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 48,312 psi | 76% | 2890 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 80% | 47,863 psi | 75% | 2881 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 80% | 47,863 psi | 75% | 2881 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 43,888 psi | 69% | 2828 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 43,888 psi | 69% | 2828 fps | 98.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 42,612 psi | 67% | 2772 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 42,612 psi | 67% | 2772 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 36,854 psi | 58% | 2697 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 36,854 psi | 58% | 2697 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 48,994 psi | 77% | 2943 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 48,994 psi | 77% | 2943 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 47,630 psi | 75% | 2930 fps | 95.8% |
| Alliant Reloder-33 | <<locked>> | 92% | 47,630 psi | 75% | 2930 fps | 95.8% |
| Alliant Reloder-50 | <<locked>> | 96% | 47,485 psi | 74% | 2913 fps | 95.2% |
| Alliant Reloder-50 | <<locked>> | 96% | 47,485 psi | 74% | 2913 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 44,788 psi | 70% | 2799 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 44,788 psi | 70% | 2799 fps | 95.2% |
| Bofors RP15 | <<locked>> | 80% | 40,785 psi | 64% | 2762 fps | 97.8% |
| Bofors RP15 | <<locked>> | 80% | 40,785 psi | 64% | 2762 fps | 97.8% |
| Bofors RP30 | <<locked>> | 82% | 36,912 psi | 58% | 2687 fps | 95.8% |
| Bofors RP30 | <<locked>> | 82% | 36,912 psi | 58% | 2687 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 43,888 psi | 69% | 2828 fps | 98.6% |
| Bofors RP5 | <<locked>> | 80% | 43,888 psi | 69% | 2828 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 80% | 34,925 psi | 55% | 2628 fps | 95.6% |
| Hodgdon H1000 | <<locked>> | 80% | 34,925 psi | 55% | 2628 fps | 95.6% |
| Hodgdon H4831 | <<locked>> | 80% | 45,803 psi | 72% | 2828 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 80% | 45,803 psi | 72% | 2828 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 44,962 psi | 70% | 2812 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 44,962 psi | 70% | 2812 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 51,735 psi | 81% | 2874 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 51,735 psi | 81% | 2874 fps | 100% |
| Hodgdon Retumbo | 75.3 gr | 80% | 35,940 psi | 56% | 2733 fps | 97.2% |
| Hodgdon Retumbo | 75.3 gr | 80% | 35,940 psi | 56% | 2733 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,050 psi | 44% | 1798 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,050 psi | 44% | 1798 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 53,621 psi | 84% | 2933 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 53,621 psi | 84% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 46,702 psi | 73% | 2818 fps | 97.9% |
| IMR 4955 Enduron | <<locked>> | 80% | 46,702 psi | 73% | 2818 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 80% | 42,061 psi | 66% | 2808 fps | 97.2% |
| IMR 7828 SSC | <<locked>> | 80% | 42,061 psi | 66% | 2808 fps | 97.2% |
| IMR 8133 Enduron | <<locked>> | 88% | 35,723 psi | 56% | 2667 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 88% | 35,723 psi | 56% | 2667 fps | 95.2% |
| Lovex S071 | <<locked>> | 80% | 37,362 psi | 59% | 2621 fps | 98.9% |
| Lovex S071 | <<locked>> | 80% | 37,362 psi | 59% | 2621 fps | 98.9% |
| Norma 217 | <<locked>> | 84% | 31,154 psi | 49% | 2566 fps | 95.4% |
| Norma 217 | <<locked>> | 84% | 31,154 psi | 49% | 2566 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 46,963 psi | 74% | 2904 fps | 99.8% |
| Norma MRP | <<locked>> | 80% | 46,963 psi | 74% | 2904 fps | 99.8% |
| Ramshot Grand | <<locked>> | 80% | 42,134 psi | 66% | 2815 fps | 97.6% |
| Ramshot Grand | <<locked>> | 80% | 42,134 psi | 66% | 2815 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 80% | 38,029 psi | 60% | 2684 fps | 98% |
| Ramshot Magnum | <<locked>> | 80% | 38,029 psi | 60% | 2684 fps | 98% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,776 psi | 45% | 1841 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,776 psi | 45% | 1841 fps | 100% |
| ReloadSwiss RS 76 | 80.6 gr | 80% | 35,462 psi | 56% | 2703 fps | 98.2% |
| ReloadSwiss RS 76 | 80.6 gr | 80% | 35,462 psi | 56% | 2703 fps | 98.2% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 41,379 psi | 65% | 2799 fps | 95.9% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 41,379 psi | 65% | 2799 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 48,762 psi | 76% | 2864 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 80% | 48,762 psi | 76% | 2864 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 80% | 47,543 psi | 75% | 2871 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 80% | 47,543 psi | 75% | 2871 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 47,195 psi | 74% | 2867 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 47,195 psi | 74% | 2867 fps | 99.2% |
| Somchem S361 | <<locked>> | 80% | 49,922 psi | 78% | 2848 fps | 98.4% |
| Somchem S361 | <<locked>> | 80% | 49,922 psi | 78% | 2848 fps | 98.4% |
| Somchem S365 | <<locked>> | 80% | 53,621 psi | 84% | 2930 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 53,621 psi | 84% | 2930 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 47,776 psi | 75% | 2844 fps | 99.7% |
| Somchem S385 | <<locked>> | 80% | 47,776 psi | 75% | 2844 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 80% | 41,742 psi | 65% | 2717 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 80% | 41,742 psi | 65% | 2717 fps | 98.6% |
| Vihtavuori N170 | <<locked>> | 90% | 50,879 psi | 80% | 2890 fps | 95.1% |
| Vihtavuori N170 | <<locked>> | 90% | 50,879 psi | 80% | 2890 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 80% | 47,195 psi | 74% | 2851 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 47,195 psi | 74% | 2851 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 46,586 psi | 73% | 2897 fps | 97.8% |
| Vihtavuori N560 | <<locked>> | 80% | 46,586 psi | 73% | 2897 fps | 97.8% |
| Vihtavuori N565 | <<locked>> | 80% | 38,493 psi | 60% | 2700 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 80% | 38,493 psi | 60% | 2700 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 86% | 42,351 psi | 66% | 2818 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 86% | 42,351 psi | 66% | 2818 fps | 95.6% |
| Vihtavuori N570 | 88 gr | 90% | 46,847 psi | 73% | 2943 fps | 95% |
| Vihtavuori N570 | 88 gr | 90% | 46,847 psi | 73% | 2943 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 80% | 41,336 psi | 65% | 2825 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 41,336 psi | 65% | 2825 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 44,150 psi | 69% | 2772 fps | 98.7% |
| Winchester Supreme 780 | <<locked>> | 80% | 44,150 psi | 69% | 2772 fps | 98.7% |
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 104 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 140gr | Barnes TTSX BT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,136 fps; across all powders the maximum-charge window runs from 2,005 fps to 3,136 fps. Alliant Reloder-50 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 (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-50, Alliant Reloder-50, Hodgdon TrailBoss 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. Vihtavuori N570, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 140gr | Barnes TTSX BT 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.