Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:153 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:1:8.0
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 153gr | Peregrine Glider (Glider GRM) bullet and 105 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ADI AR 2218 and Vihtavuori N570.
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>> | 86% | 55,535 psi | 87% | 2844 fps | 100% |
| Accurate 3100 | <<locked>> | 86% | 55,535 psi | 87% | 2844 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 47,616 psi | 75% | 2795 fps | 96.2% |
| Accurate 8700ᴾ | <<locked>> | 100% | 47,616 psi | 75% | 2795 fps | 96.2% |
| Accurate High Country | <<locked>> | 82% | 53,795 psi | 84% | 2943 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 84% | 54,882 psi | 86% | 2949 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 84% | 54,882 psi | 86% | 2949 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 84% | 56,913 psi | 89% | 2940 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 56,913 psi | 89% | 2940 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 55,724 psi | 87% | 2956 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 86% | 55,724 psi | 87% | 2956 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 94% | 54,940 psi | 86% | 2930 fps | 100% |
| ADI AR 2217 | <<locked>> | 94% | 54,940 psi | 86% | 2930 fps | 100% |
| ADI AR 2218 | <<locked>> | 98% | 55,753 psi | 87% | 3045 fps | 98.8% |
| ADI AR 2218 | <<locked>> | 98% | 55,753 psi | 87% | 3045 fps | 98.8% |
| ADI AR 2225 | <<locked>> | 96% | 54,259 psi | 85% | 2946 fps | 100% |
| ADI AR 2225 | <<locked>> | 96% | 54,259 psi | 85% | 2946 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,043 psi | 89% | 2936 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,043 psi | 89% | 2936 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 56,463 psi | 88% | 2927 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 56,463 psi | 88% | 2927 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 56,130 psi | 88% | 2946 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 56,130 psi | 88% | 2946 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 54,186 psi | 85% | 2854 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 54,186 psi | 85% | 2854 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 54,882 psi | 86% | 2927 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 54,882 psi | 86% | 2927 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 54,839 psi | 86% | 2933 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 54,839 psi | 86% | 2933 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 53,461 psi | 84% | 2953 fps | 98% |
| Alliant Reloder-33 | <<locked>> | 94% | 53,461 psi | 84% | 2953 fps | 98% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 57,551 psi | 90% | 3005 fps | 98.4% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 57,551 psi | 90% | 3005 fps | 98.4% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,260 psi | 88% | 2913 fps | 98.6% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,260 psi | 88% | 2913 fps | 98.6% |
| Bofors RP15 | <<locked>> | 88% | 55,535 psi | 87% | 2936 fps | 100% |
| Bofors RP15 | <<locked>> | 88% | 55,535 psi | 87% | 2936 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 54,752 psi | 86% | 2940 fps | 99.9% |
| Bofors RP30 | <<locked>> | 92% | 54,752 psi | 86% | 2940 fps | 99.9% |
| Bofors RP5 | <<locked>> | 86% | 56,130 psi | 88% | 2946 fps | 100% |
| Bofors RP5 | <<locked>> | 86% | 56,130 psi | 88% | 2946 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,362 psi | 88% | 2949 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,362 psi | 88% | 2949 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 54,389 psi | 85% | 2884 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 84% | 54,389 psi | 85% | 2884 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 57,290 psi | 90% | 2930 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 86% | 57,290 psi | 90% | 2930 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 57,058 psi | 89% | 2844 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 57,058 psi | 89% | 2844 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 54,259 psi | 85% | 3012 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 54,259 psi | 85% | 3012 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,637 psi | 59% | 1919 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,637 psi | 59% | 1919 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 54,781 psi | 86% | 2867 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 84% | 54,781 psi | 86% | 2867 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 86% | 54,186 psi | 85% | 2936 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 86% | 54,186 psi | 85% | 2936 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 57,029 psi | 89% | 2986 fps | 100% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 57,029 psi | 89% | 2986 fps | 100% |
| Lovex S071 | <<locked>> | 92% | 57,667 psi | 90% | 2877 fps | 100% |
| Lovex S071 | <<locked>> | 92% | 57,667 psi | 90% | 2877 fps | 100% |
| Norma 217 | <<locked>> | 98% | 54,476 psi | 85% | 2949 fps | 100% |
| Norma 217 | <<locked>> | 98% | 54,476 psi | 85% | 2949 fps | 100% |
| Norma MRP | <<locked>> | 84% | 56,188 psi | 88% | 2959 fps | 100% |
| Norma MRP | <<locked>> | 84% | 56,188 psi | 88% | 2959 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 55,550 psi | 87% | 2956 fps | 99.9% |
| Ramshot Grand | <<locked>> | 86% | 55,550 psi | 87% | 2956 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 88% | 53,969 psi | 85% | 2881 fps | 100% |
| Ramshot Magnum | <<locked>> | 88% | 53,969 psi | 85% | 2881 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,609 psi | 61% | 1965 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,609 psi | 61% | 1965 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,274 psi | 87% | 2992 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,274 psi | 87% | 2992 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 54,520 psi | 85% | 2956 fps | 99.5% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 54,520 psi | 85% | 2956 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 84% | 57,174 psi | 90% | 2910 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 84% | 57,174 psi | 90% | 2910 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 84% | 56,159 psi | 88% | 2917 fps | 100% |
| Rottweil R 905 | <<locked>> | 84% | 56,159 psi | 88% | 2917 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 49,530 psi | 78% | 2808 fps | 96.2% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 49,530 psi | 78% | 2808 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 55,782 psi | 87% | 2917 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 55,782 psi | 87% | 2917 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 55,056 psi | 86% | 2841 fps | 99.5% |
| Somchem S361 | <<locked>> | 82% | 55,056 psi | 86% | 2841 fps | 99.5% |
| Somchem S385 | <<locked>> | 84% | 56,405 psi | 88% | 2884 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 56,405 psi | 88% | 2884 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 56,782 psi | 89% | 2874 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 56,782 psi | 89% | 2874 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 56,246 psi | 88% | 2897 fps | 97.2% |
| Vihtavuori N170 | <<locked>> | 92% | 56,246 psi | 88% | 2897 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 84% | 55,738 psi | 87% | 2884 fps | 100% |
| Vihtavuori N555 | <<locked>> | 84% | 55,738 psi | 87% | 2884 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 55,564 psi | 87% | 2963 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 55,564 psi | 87% | 2963 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 90% | 56,811 psi | 89% | 2956 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 90% | 56,811 psi | 89% | 2956 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 92% | 54,926 psi | 86% | 2963 fps | 99.2% |
| Vihtavuori N568 | <<locked>> | 92% | 54,926 psi | 86% | 2963 fps | 99.2% |
| Vihtavuori N570 | <<locked>> | 94% | 56,550 psi | 89% | 3028 fps | 98.2% |
| Vihtavuori N570 | <<locked>> | 94% | 56,550 psi | 89% | 3028 fps | 98.2% |
| Winchester StaBALL HD | <<locked>> | 86% | 54,810 psi | 86% | 2936 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 86% | 54,810 psi | 86% | 2936 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 56,478 psi | 89% | 2884 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 56,478 psi | 89% | 2884 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 3100 | <<locked>> | 80% | 45,165 psi | 71% | 2687 fps | 100% |
| Accurate 3100 | <<locked>> | 80% | 45,165 psi | 71% | 2687 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 44,106 psi | 69% | 2730 fps | 95% |
| Accurate 8700 | <<locked>> | 98% | 44,106 psi | 69% | 2730 fps | 95% |
| Accurate High Country | <<locked>> | 80% | 50,038 psi | 78% | 2881 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 80% | 47,514 psi | 74% | 2825 fps | 98.1% |
| Accurate MAGPRO | <<locked>> | 80% | 47,514 psi | 74% | 2825 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 80% | 49,632 psi | 78% | 2825 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 80% | 49,632 psi | 78% | 2825 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 80% | 44,904 psi | 70% | 2769 fps | 98.5% |
| ADI AR 2213 | <<locked>> | 80% | 44,904 psi | 70% | 2769 fps | 98.5% |
| ADI AR 2217 | <<locked>> | 80% | 33,170 psi | 52% | 2503 fps | 95% |
| ADI AR 2217 | <<locked>> | 80% | 33,170 psi | 52% | 2503 fps | 95% |
| ADI AR 2218 | 89.4 gr | 92% | 44,309 psi | 69% | 2825 fps | 95.6% |
| ADI AR 2218 | 89.4 gr | 92% | 44,309 psi | 69% | 2825 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 80% | 30,458 psi | 48% | 2467 fps | 97% |
| ADI AR 2225 | <<locked>> | 80% | 30,458 psi | 48% | 2467 fps | 97% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 49,951 psi | 78% | 2825 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 49,951 psi | 78% | 2825 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,443 psi | 77% | 2818 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,443 psi | 77% | 2818 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,571 psi | 71% | 2772 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,571 psi | 71% | 2772 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,179 psi | 69% | 2703 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,179 psi | 69% | 2703 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,435 psi | 60% | 2648 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,435 psi | 60% | 2648 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 50,691 psi | 79% | 2874 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 50,691 psi | 79% | 2874 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 45,629 psi | 72% | 2812 fps | 96% |
| Alliant Reloder-33 | <<locked>> | 90% | 45,629 psi | 72% | 2812 fps | 96% |
| Alliant Reloder-50 | <<locked>> | 94% | 45,527 psi | 71% | 2795 fps | 95.4% |
| Alliant Reloder-50 | <<locked>> | 94% | 45,527 psi | 71% | 2795 fps | 95.4% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 42,975 psi | 67% | 2677 fps | 95.4% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 42,975 psi | 67% | 2677 fps | 95.4% |
| Bofors RP15 | <<locked>> | 80% | 42,293 psi | 66% | 2707 fps | 98.7% |
| Bofors RP15 | <<locked>> | 80% | 42,293 psi | 66% | 2707 fps | 98.7% |
| Bofors RP30 | <<locked>> | 80% | 35,737 psi | 56% | 2575 fps | 96.2% |
| Bofors RP30 | <<locked>> | 80% | 35,737 psi | 56% | 2575 fps | 96.2% |
| Bofors RP5 | <<locked>> | 80% | 45,571 psi | 71% | 2772 fps | 99.4% |
| Bofors RP5 | <<locked>> | 80% | 45,571 psi | 71% | 2772 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 80% | 36,187 psi | 57% | 2582 fps | 97.1% |
| Hodgdon H1000 | <<locked>> | 80% | 36,187 psi | 57% | 2582 fps | 97.1% |
| Hodgdon H4831 | <<locked>> | 80% | 47,253 psi | 74% | 2766 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 80% | 47,253 psi | 74% | 2766 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,543 psi | 73% | 2753 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,543 psi | 73% | 2753 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,330 psi | 84% | 2799 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,330 psi | 84% | 2799 fps | 100% |
| Hodgdon Retumbo | 73.4 gr | 80% | 37,521 psi | 59% | 2694 fps | 98.6% |
| Hodgdon Retumbo | 73.4 gr | 80% | 37,521 psi | 59% | 2694 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,268 psi | 44% | 1726 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,268 psi | 44% | 1726 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 48,095 psi | 75% | 2756 fps | 98.7% |
| IMR 4955 Enduron | <<locked>> | 80% | 48,095 psi | 75% | 2756 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 80% | 43,584 psi | 68% | 2749 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 80% | 43,584 psi | 68% | 2749 fps | 98.2% |
| IMR 8133 Enduron | <<locked>> | 86% | 34,635 psi | 54% | 2562 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 86% | 34,635 psi | 54% | 2562 fps | 95.6% |
| Lovex S071 | <<locked>> | 80% | 38,653 psi | 61% | 2562 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 38,653 psi | 61% | 2562 fps | 99.6% |
| Norma 217 | <<locked>> | 82% | 30,269 psi | 47% | 2464 fps | 95.9% |
| Norma 217 | <<locked>> | 82% | 30,269 psi | 47% | 2464 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 48,559 psi | 76% | 2838 fps | 100% |
| Norma MRP | <<locked>> | 80% | 48,559 psi | 76% | 2838 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 43,947 psi | 69% | 2762 fps | 98.7% |
| Ramshot Grand | <<locked>> | 80% | 43,947 psi | 69% | 2762 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 80% | 39,523 psi | 62% | 2631 fps | 99% |
| Ramshot Magnum | <<locked>> | 80% | 39,523 psi | 62% | 2631 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,037 psi | 46% | 1765 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,037 psi | 46% | 1765 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 36,970 psi | 58% | 2664 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 36,970 psi | 58% | 2664 fps | 99.3% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 39,740 psi | 62% | 2684 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 39,740 psi | 62% | 2684 fps | 96.2% |
| Rottweil R 904 | <<locked>> | 80% | 50,082 psi | 78% | 2795 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 80% | 50,082 psi | 78% | 2795 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 80% | 48,994 psi | 77% | 2805 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 80% | 48,994 psi | 77% | 2805 fps | 99.7% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 46,035 psi | 72% | 2746 fps | 95.2% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 46,035 psi | 72% | 2746 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,646 psi | 76% | 2802 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,646 psi | 76% | 2802 fps | 99.7% |
| Somchem S361 | <<locked>> | 80% | 51,285 psi | 80% | 2782 fps | 99.1% |
| Somchem S361 | <<locked>> | 80% | 51,285 psi | 80% | 2782 fps | 99.1% |
| Somchem S385 | <<locked>> | 80% | 49,414 psi | 77% | 2779 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 49,414 psi | 77% | 2779 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 43,221 psi | 68% | 2657 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 80% | 43,221 psi | 68% | 2657 fps | 99.3% |
| Vihtavuori N170 | <<locked>> | 88% | 48,878 psi | 77% | 2772 fps | 95.3% |
| Vihtavuori N170 | <<locked>> | 88% | 48,878 psi | 77% | 2772 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 80% | 48,689 psi | 76% | 2779 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 48,689 psi | 76% | 2779 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 48,124 psi | 75% | 2838 fps | 98.7% |
| Vihtavuori N560 | <<locked>> | 80% | 48,124 psi | 75% | 2838 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 80% | 39,813 psi | 62% | 2648 fps | 96.9% |
| Vihtavuori N565 | <<locked>> | 80% | 39,813 psi | 62% | 2648 fps | 96.9% |
| Vihtavuori N568 | <<locked>> | 84% | 40,857 psi | 64% | 2703 fps | 96% |
| Vihtavuori N568 | <<locked>> | 84% | 40,857 psi | 64% | 2703 fps | 96% |
| Vihtavuori N570 | 83.8 gr | 88% | 45,150 psi | 71% | 2825 fps | 95.3% |
| Vihtavuori N570 | 83.8 gr | 88% | 45,150 psi | 71% | 2825 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 43,149 psi | 68% | 2762 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 43,149 psi | 68% | 2762 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,600 psi | 71% | 2710 fps | 99.4% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,600 psi | 71% | 2710 fps | 99.4% |
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 105 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 153gr | Peregrine Glider (Glider GRM). ADI AR 2218 delivers the highest muzzle velocity at 3,045 fps; across all powders the maximum-charge window runs from 1,919 fps to 3,045 fps. Accurate 8700 gives the best case fill at 100 %, and 105 of the 105 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 153.0 gr projectile in 0.284" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, Accurate 8700, Alliant Reloder-50 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. Hodgdon Retumbo, ADI AR 2218, Vihtavuori N570 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 153gr | Peregrine Glider (Glider GRM) 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.