Load Specifications
Bullet Manufacturer:Peregrine
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:1:9.0
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 140gr | Peregrine Plainsmaster (VLR-4) 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% | 57,624 psi | 90% | 2972 fps | 100% |
| Accurate 3100 | <<locked>> | 88% | 57,711 psi | 90% | 2976 fps | 100% |
| Accurate High Country | <<locked>> | 84% | 55,985 psi | 88% | 3074 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 86% | 57,058 psi | 89% | 3077 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 86% | 57,145 psi | 90% | 3081 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 84% | 55,114 psi | 86% | 3012 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 84% | 55,013 psi | 86% | 3009 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 86% | 53,737 psi | 84% | 3018 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 86% | 53,824 psi | 84% | 3022 fps | 99.4% |
| ADI AR 2217 | <<locked>> | 96% | 56,869 psi | 89% | 3054 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 96% | 56,985 psi | 89% | 3054 fps | 99.9% |
| ADI AR 2218 | <<locked>> | 98% | 53,679 psi | 84% | 3094 fps | 97.7% |
| ADI AR 2218 | <<locked>> | 98% | 53,737 psi | 84% | 3094 fps | 97.7% |
| ADI AR 2225 | <<locked>> | 98% | 55,985 psi | 88% | 3071 fps | 100% |
| ADI AR 2225 | <<locked>> | 98% | 56,072 psi | 88% | 3071 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 55,463 psi | 87% | 3009 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 84% | 54,795 psi | 86% | 3002 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 84% | 54,897 psi | 86% | 3002 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 86% | 54,157 psi | 85% | 3015 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 86% | 54,259 psi | 85% | 3015 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 88% | 56,101 psi | 88% | 2982 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 88% | 55,999 psi | 88% | 2982 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 56,840 psi | 89% | 3054 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 56,927 psi | 89% | 3051 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 57,058 psi | 89% | 3064 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 57,159 psi | 90% | 3068 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 55,564 psi | 87% | 3074 fps | 97.8% |
| Alliant Reloder-33 | <<locked>> | 96% | 55,622 psi | 87% | 3074 fps | 97.9% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 55,303 psi | 87% | 3054 fps | 97.3% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 55,245 psi | 87% | 3054 fps | 97.3% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 54,752 psi | 86% | 2976 fps | 97.8% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 54,810 psi | 86% | 2979 fps | 97.8% |
| Bofors RP15 | <<locked>> | 90% | 57,464 psi | 90% | 3064 fps | 100% |
| Bofors RP15 | <<locked>> | 90% | 57,551 psi | 90% | 3064 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 56,550 psi | 89% | 3061 fps | 99.9% |
| Bofors RP30 | <<locked>> | 94% | 56,652 psi | 89% | 3064 fps | 99.9% |
| Bofors RP5 | <<locked>> | 86% | 54,157 psi | 85% | 3015 fps | 99.9% |
| Bofors RP5 | <<locked>> | 86% | 54,259 psi | 85% | 3015 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 92% | 54,331 psi | 85% | 3015 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 92% | 54,418 psi | 85% | 3018 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 86% | 56,521 psi | 89% | 3012 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 86% | 56,565 psi | 89% | 3012 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 86% | 55,564 psi | 87% | 2999 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 86% | 55,477 psi | 87% | 2995 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 55,259 psi | 87% | 2923 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 55,143 psi | 86% | 2923 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 55,999 psi | 88% | 3136 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 56,101 psi | 88% | 3136 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,536 psi | 59% | 2001 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,579 psi | 59% | 2005 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 57,203 psi | 90% | 2989 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 57,261 psi | 90% | 2989 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 56,869 psi | 89% | 2995 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 86% | 56,826 psi | 89% | 2995 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 88% | 56,260 psi | 88% | 3068 fps | 99.7% |
| IMR 7828 SSC | <<locked>> | 88% | 56,173 psi | 88% | 3064 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 54,911 psi | 86% | 3045 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 54,984 psi | 86% | 3048 fps | 99.8% |
| Lovex S071 | <<locked>> | 92% | 55,709 psi | 87% | 2946 fps | 100% |
| Lovex S071 | <<locked>> | 92% | 55,811 psi | 87% | 2946 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 56,246 psi | 88% | 3068 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 56,159 psi | 88% | 3068 fps | 100% |
| Norma MRP | <<locked>> | 84% | 54,302 psi | 85% | 3028 fps | 100% |
| Norma MRP | <<locked>> | 84% | 54,389 psi | 85% | 3028 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 57,624 psi | 90% | 3084 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 57,725 psi | 90% | 3087 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 90% | 56,159 psi | 88% | 3009 fps | 100% |
| Ramshot Magnum | <<locked>> | 90% | 56,072 psi | 88% | 3005 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,508 psi | 60% | 2047 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,450 psi | 60% | 2047 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 57,464 psi | 90% | 3123 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 57,551 psi | 90% | 3120 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 56,782 psi | 89% | 3084 fps | 99.4% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 56,855 psi | 89% | 3084 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 84% | 55,521 psi | 87% | 2979 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 84% | 55,622 psi | 87% | 2982 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 84% | 54,520 psi | 85% | 2992 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 84% | 54,447 psi | 85% | 2992 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 54,172 psi | 85% | 2989 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 54,070 psi | 85% | 2986 fps | 99.9% |
| Somchem S361 | <<locked>> | 84% | 57,217 psi | 90% | 2966 fps | 99.4% |
| Somchem S361 | <<locked>> | 84% | 57,290 psi | 90% | 2966 fps | 99.4% |
| Somchem S365 | <<locked>> | 82% | 57,406 psi | 90% | 2982 fps | 100% |
| Somchem S365 | <<locked>> | 82% | 57,508 psi | 90% | 2982 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 54,665 psi | 86% | 2956 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 54,766 psi | 86% | 2959 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 54,897 psi | 86% | 2943 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 54,984 psi | 86% | 2943 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 54,389 psi | 85% | 2953 fps | 96% |
| Vihtavuori N170 | <<locked>> | 92% | 54,447 psi | 85% | 2953 fps | 96% |
| Vihtavuori N555 | <<locked>> | 86% | 57,682 psi | 90% | 3012 fps | 100% |
| Vihtavuori N555 | <<locked>> | 84% | 53,896 psi | 84% | 2959 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 57,667 psi | 90% | 3094 fps | 99.6% |
| Vihtavuori N560 | <<locked>> | 84% | 53,853 psi | 84% | 3031 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 90% | 54,955 psi | 86% | 3018 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 90% | 55,042 psi | 86% | 3022 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 94% | 56,942 psi | 89% | 3087 fps | 99.1% |
| Vihtavuori N568 | <<locked>> | 94% | 57,014 psi | 89% | 3087 fps | 99.1% |
| Vihtavuori N570 | <<locked>> | 94% | 54,157 psi | 85% | 3081 fps | 97.1% |
| Vihtavuori N570 | <<locked>> | 94% | 54,230 psi | 85% | 3081 fps | 97.1% |
| Winchester StaBALL HD | <<locked>> | 88% | 56,768 psi | 89% | 3064 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 88% | 56,637 psi | 89% | 3068 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 54,882 psi | 86% | 2956 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 86% | 54,795 psi | 86% | 2953 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% | 43,439 psi | 68% | 2746 fps | 99.8% |
| Accurate 3100 | <<locked>> | 80% | 43,526 psi | 68% | 2749 fps | 99.8% |
| Accurate High Country | <<locked>> | 80% | 48,370 psi | 76% | 2943 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 80% | 45,600 psi | 71% | 2877 fps | 97% |
| Accurate MAGPRO | <<locked>> | 80% | 45,687 psi | 72% | 2877 fps | 97% |
| ADI AR 2209 | <<locked>> | 80% | 47,964 psi | 75% | 2890 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 80% | 47,892 psi | 75% | 2890 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 80% | 43,076 psi | 68% | 2822 fps | 97.4% |
| ADI AR 2213 | <<locked>> | 80% | 43,178 psi | 68% | 2825 fps | 97.4% |
| ADI AR 2217 | <<locked>> | 84% | 36,782 psi | 58% | 2671 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 84% | 36,840 psi | 58% | 2674 fps | 95.8% |
| ADI AR 2218 | <<locked>> | 94% | 45,919 psi | 72% | 2936 fps | 95.2% |
| ADI AR 2218 | <<locked>> | 94% | 45,977 psi | 72% | 2940 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 80% | 29,153 psi | 46% | 2500 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 80% | 29,196 psi | 46% | 2500 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 48,269 psi | 76% | 2887 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 80% | 47,732 psi | 75% | 2881 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 80% | 47,819 psi | 75% | 2881 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 43,758 psi | 69% | 2828 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 43,845 psi | 69% | 2828 fps | 98.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 42,569 psi | 67% | 2769 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 42,467 psi | 67% | 2769 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 36,724 psi | 58% | 2700 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 36,811 psi | 58% | 2700 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 48,646 psi | 76% | 2936 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 48,747 psi | 76% | 2940 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 47,340 psi | 74% | 2930 fps | 95.7% |
| Alliant Reloder-33 | <<locked>> | 92% | 47,413 psi | 74% | 2927 fps | 95.7% |
| Alliant Reloder-50 | <<locked>> | 96% | 47,268 psi | 74% | 2910 fps | 95.1% |
| Alliant Reloder-50 | <<locked>> | 96% | 47,195 psi | 74% | 2907 fps | 95.1% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 44,686 psi | 70% | 2799 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 44,759 psi | 70% | 2799 fps | 95.2% |
| Bofors RP15 | <<locked>> | 80% | 40,654 psi | 64% | 2759 fps | 97.7% |
| Bofors RP15 | <<locked>> | 80% | 40,741 psi | 64% | 2762 fps | 97.7% |
| Bofors RP30 | <<locked>> | 82% | 36,782 psi | 58% | 2684 fps | 95.8% |
| Bofors RP30 | <<locked>> | 82% | 36,869 psi | 58% | 2684 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 43,758 psi | 69% | 2828 fps | 98.6% |
| Bofors RP5 | <<locked>> | 80% | 43,845 psi | 69% | 2828 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 80% | 34,809 psi | 55% | 2625 fps | 95.5% |
| Hodgdon H1000 | <<locked>> | 80% | 34,737 psi | 54% | 2625 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 80% | 45,687 psi | 72% | 2825 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 80% | 45,774 psi | 72% | 2825 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 44,918 psi | 70% | 2812 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 44,831 psi | 70% | 2808 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 51,677 psi | 81% | 2874 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 51,576 psi | 81% | 2874 fps | 100% |
| Hodgdon Retumbo | 75.2 gr | 80% | 35,810 psi | 56% | 2730 fps | 97.1% |
| Hodgdon Retumbo | 75.2 gr | 80% | 35,882 psi | 56% | 2736 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,108 psi | 44% | 1801 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,152 psi | 44% | 1801 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 53,490 psi | 84% | 2933 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 53,548 psi | 84% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 46,659 psi | 73% | 2822 fps | 97.9% |
| IMR 4955 Enduron | <<locked>> | 80% | 46,572 psi | 73% | 2818 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 80% | 41,829 psi | 66% | 2805 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 80% | 41,916 psi | 66% | 2805 fps | 97.1% |
| IMR 8133 Enduron | <<locked>> | 88% | 35,592 psi | 56% | 2667 fps | 95.1% |
| IMR 8133 Enduron | <<locked>> | 88% | 35,679 psi | 56% | 2667 fps | 95.1% |
| Lovex S071 | <<locked>> | 80% | 37,231 psi | 58% | 2618 fps | 98.9% |
| Lovex S071 | <<locked>> | 80% | 37,318 psi | 58% | 2621 fps | 98.9% |
| Norma 217 | <<locked>> | 84% | 31,096 psi | 49% | 2562 fps | 95.4% |
| Norma 217 | <<locked>> | 84% | 31,024 psi | 49% | 2562 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 46,818 psi | 73% | 2904 fps | 99.8% |
| Norma MRP | <<locked>> | 80% | 46,920 psi | 74% | 2904 fps | 99.8% |
| Ramshot Grand | <<locked>> | 80% | 42,003 psi | 66% | 2815 fps | 97.6% |
| Ramshot Grand | <<locked>> | 80% | 42,105 psi | 66% | 2815 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 80% | 38,000 psi | 60% | 2684 fps | 98% |
| Ramshot Magnum | <<locked>> | 80% | 37,913 psi | 59% | 2684 fps | 98% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,863 psi | 45% | 1844 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,834 psi | 45% | 1841 fps | 100% |
| ReloadSwiss RS 76 | 80.5 gr | 80% | 35,346 psi | 55% | 2703 fps | 98.2% |
| ReloadSwiss RS 76 | 80.5 gr | 80% | 35,433 psi | 56% | 2703 fps | 98.2% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 41,104 psi | 64% | 2795 fps | 95.8% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 41,176 psi | 65% | 2799 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 48,718 psi | 76% | 2867 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 80% | 48,631 psi | 76% | 2864 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 80% | 47,297 psi | 74% | 2871 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 80% | 47,398 psi | 74% | 2871 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 46,963 psi | 74% | 2864 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 47,050 psi | 74% | 2867 fps | 99.2% |
| Somchem S361 | <<locked>> | 80% | 49,777 psi | 78% | 2848 fps | 98.4% |
| Somchem S361 | <<locked>> | 80% | 49,864 psi | 78% | 2851 fps | 98.4% |
| Somchem S365 | <<locked>> | 80% | 53,461 psi | 84% | 2927 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 53,534 psi | 84% | 2930 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 47,645 psi | 75% | 2841 fps | 99.7% |
| Somchem S385 | <<locked>> | 80% | 47,718 psi | 75% | 2844 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 80% | 41,626 psi | 65% | 2713 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 80% | 41,698 psi | 65% | 2713 fps | 98.6% |
| Vihtavuori N170 | <<locked>> | 90% | 50,575 psi | 79% | 2887 fps | 95% |
| Vihtavuori N170 | <<locked>> | 90% | 50,647 psi | 79% | 2887 fps | 95% |
| Vihtavuori N555 | <<locked>> | 80% | 47,050 psi | 74% | 2851 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 47,108 psi | 74% | 2851 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 46,470 psi | 73% | 2897 fps | 97.8% |
| Vihtavuori N560 | <<locked>> | 80% | 46,557 psi | 73% | 2900 fps | 97.8% |
| Vihtavuori N565 | <<locked>> | 80% | 38,348 psi | 60% | 2700 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 80% | 38,435 psi | 60% | 2703 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 86% | 42,206 psi | 66% | 2815 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 86% | 42,293 psi | 66% | 2818 fps | 95.6% |
| Vihtavuori N570 | 89.8 gr | 92% | 50,314 psi | 79% | 3009 fps | 96.1% |
| Vihtavuori N570 | 89.8 gr | 92% | 50,401 psi | 79% | 3012 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 41,234 psi | 65% | 2822 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 41,191 psi | 65% | 2822 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 44,121 psi | 69% | 2772 fps | 98.7% |
| Winchester Supreme 780 | <<locked>> | 80% | 44,019 psi | 69% | 2769 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 | Peregrine Plainsmaster (VLR-4). Hodgdon Retumbo delivers the highest muzzle velocity at 3,136 fps; across all powders the maximum-charge window runs from 2,001 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 1:9.0 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 | Peregrine Plainsmaster (VLR-4) 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.