Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 160gr | Winchester Silvertip bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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 2495 | <<locked>> | 82% | 58,726 psi | 90% | 2723 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 55,622 psi | 86% | 2753 fps | 99.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 58,450 psi | 90% | 2861 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 55,622 psi | 86% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 56,434 psi | 87% | 2848 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 56,695 psi | 87% | 2953 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 86% | 58,552 psi | 90% | 2815 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 57,276 psi | 88% | 2897 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 98% | 54,955 psi | 85% | 2897 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,840 psi | 58% | 2618 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 58,813 psi | 90% | 2946 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,188 psi | 86% | 2789 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,318 psi | 87% | 2812 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 57,217 psi | 88% | 2904 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 58,697 psi | 90% | 2923 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 56,521 psi | 87% | 2884 fps | 99% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 58,131 psi | 89% | 2949 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,955 psi | 85% | 2871 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,500 psi | 73% | 2812 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 55,245 psi | 85% | 2959 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,200 psi | 82% | 2874 fps | 98.6% |
| Bofors RP3 | <<locked>> | 84% | 57,058 psi | 88% | 2805 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 43,511 psi | 67% | 2733 fps | 96% |
| Bofors RP5ᴾ | <<locked>> | 100% | 58,131 psi | 89% | 2949 fps | 99.3% |
| Bofors RP7 | <<locked>> | 88% | 56,115 psi | 86% | 2795 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,152 psi | 73% | 2753 fps | 97% |
| Hodgdon H380 | <<locked>> | 84% | 57,319 psi | 88% | 2825 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 58,450 psi | 90% | 2904 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 88% | 57,986 psi | 89% | 2861 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 96% | 55,042 psi | 85% | 2838 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 57,696 psi | 89% | 2881 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 57,435 psi | 88% | 2825 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 58,798 psi | 90% | 2854 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,557 psi | 72% | 2854 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 88% | 54,897 psi | 84% | 2884 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,651 psi | 56% | 1739 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 58,131 psi | 89% | 2799 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 57,014 psi | 88% | 2785 fps | 99.7% |
| IMR 4350 | <<locked>> | 92% | 57,421 psi | 88% | 2835 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 57,769 psi | 89% | 2825 fps | 99.8% |
| IMR 4831 | <<locked>> | 92% | 56,739 psi | 87% | 2838 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 57,798 psi | 89% | 2838 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 56,449 psi | 87% | 2825 fps | 97.6% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,985 psi | 86% | 2927 fps | 98.1% |
| Lovex S062 | <<locked>> | 84% | 58,392 psi | 90% | 2789 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 58,088 psi | 89% | 2818 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 55,985 psi | 86% | 2812 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,472 psi | 75% | 2713 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 55,680 psi | 86% | 2795 fps | 100% |
| Norma 204 | <<locked>> | 92% | 58,436 psi | 90% | 2890 fps | 99.1% |
| Norma MRP | <<locked>> | 98% | 57,769 psi | 89% | 2972 fps | 99.9% |
| Norma URP | <<locked>> | 92% | 58,726 psi | 90% | 2884 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 56,565 psi | 87% | 2825 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 56,884 psi | 88% | 2949 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 92% | 57,435 psi | 88% | 2890 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,879 psi | 78% | 2825 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,347 psi | 57% | 1778 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 57,188 psi | 88% | 2812 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 58,233 psi | 90% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 56,492 psi | 87% | 2874 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 58,668 psi | 90% | 2956 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,673 psi | 72% | 2851 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 82% | 56,739 psi | 87% | 2749 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 57,217 psi | 88% | 2802 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,158 psi | 85% | 2812 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 96% | 56,072 psi | 86% | 2874 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 88% | 56,115 psi | 86% | 2795 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 58,088 psi | 89% | 2818 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 58,392 psi | 90% | 2789 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,985 psi | 86% | 2812 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,216 psi | 85% | 2812 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 57,885 psi | 89% | 2680 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 57,798 psi | 89% | 2776 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,593 psi | 86% | 2867 fps | 99% |
| Somchem S355 | <<locked>> | 86% | 56,942 psi | 88% | 2795 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 57,101 psi | 88% | 2812 fps | 97.5% |
| Somchem S365 | <<locked>> | 94% | 58,363 psi | 90% | 2884 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 56,594 psi | 87% | 2848 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 82% | 57,464 psi | 88% | 2707 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 57,377 psi | 88% | 2723 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 58,450 psi | 90% | 2772 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,942 psi | 88% | 2825 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 56,014 psi | 86% | 2825 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 82% | 55,564 psi | 85% | 2720 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 56,231 psi | 87% | 2835 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 57,566 psi | 89% | 2897 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 57,870 psi | 89% | 2969 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,690 psi | 76% | 2818 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 56,695 psi | 87% | 2789 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 58,740 psi | 90% | 2904 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,778 psi | 78% | 2943 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 56,681 psi | 87% | 2841 fps | 98.9% |
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 2495 | <<locked>> | 80% | 54,940 psi | 85% | 2677 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 52,170 psi | 80% | 2697 fps | 98.9% |
| Accurate 3100 | <<locked>> | 82% | 31,807 psi | 49% | 2375 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 52,083 psi | 80% | 2687 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,205 psi | 62% | 2575 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 94% | 49,182 psi | 76% | 2825 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 48,704 psi | 75% | 2667 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 41,263 psi | 63% | 2615 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 92% | 44,831 psi | 69% | 2713 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 98% | 35,462 psi | 55% | 2556 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 54,592 psi | 84% | 2887 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,588 psi | 76% | 2690 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,779 psi | 81% | 2759 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,870 psi | 60% | 2585 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,353 psi | 68% | 2707 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,450 psi | 59% | 2552 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,899 psi | 60% | 2605 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,645 psi | 44% | 2349 fps | 97.8% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,443 psi | 47% | 2415 fps | 95.3% |
| Alliant Reloder-26 | 54.4 gr | 80% | 30,690 psi | 47% | 2464 fps | 96.4% |
| Bofors RP15 | <<locked>> | 92% | 41,046 psi | 63% | 2651 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 50,212 psi | 77% | 2707 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 40,669 psi | 63% | 2674 fps | 95% |
| Bofors RP5 | <<locked>> | 88% | 38,899 psi | 60% | 2605 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 43,874 psi | 67% | 2589 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 41,104 psi | 63% | 2628 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 50,285 psi | 77% | 2717 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 41,959 psi | 65% | 2621 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 44,933 psi | 69% | 2641 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 92% | 47,993 psi | 74% | 2723 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,050 psi | 72% | 2703 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,550 psi | 56% | 2480 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 55,085 psi | 85% | 2805 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 38,392 psi | 59% | 2667 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 40,930 psi | 63% | 2635 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,543 psi | 42% | 1555 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,227 psi | 79% | 2697 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,447 psi | 82% | 2730 fps | 99.5% |
| IMR 4350 | <<locked>> | 80% | 39,349 psi | 61% | 2516 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,179 psi | 70% | 2615 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 38,566 psi | 59% | 2530 fps | 99.1% |
| IMR 4895 | <<locked>> | 80% | 54,143 psi | 83% | 2785 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,760 psi | 72% | 2661 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 94% | 45,847 psi | 71% | 2749 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 51,547 psi | 79% | 2690 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,743 psi | 66% | 2566 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 41,104 psi | 63% | 2552 fps | 97.7% |
| Lovex S071 | <<locked>> | 86% | 31,125 psi | 48% | 2359 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 52,170 psi | 80% | 2746 fps | 100% |
| Norma 204 | <<locked>> | 82% | 41,771 psi | 64% | 2602 fps | 95.8% |
| Norma MRP | 55.5 gr | 84% | 35,578 psi | 55% | 2559 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 39,871 psi | 61% | 2569 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 80% | 52,736 psi | 81% | 2769 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 42,627 psi | 66% | 2694 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 38,653 psi | 59% | 2559 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 37,898 psi | 58% | 2575 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,036 psi | 43% | 1591 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,314 psi | 77% | 2707 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,065 psi | 72% | 2753 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,914 psi | 61% | 2595 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,522 psi | 59% | 2605 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,186 psi | 54% | 2579 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 53,447 psi | 82% | 2703 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 47,326 psi | 73% | 2654 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,743 psi | 66% | 2592 fps | 95% |
| Rottweil R 905 | <<locked>> | 86% | 40,263 psi | 62% | 2595 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 43,874 psi | 67% | 2589 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,743 psi | 66% | 2566 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 51,547 psi | 79% | 2690 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,104 psi | 63% | 2552 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,472 psi | 75% | 2707 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,167 psi | 74% | 2552 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,785 psi | 64% | 2513 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,900 psi | 61% | 2589 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 47,326 psi | 73% | 2651 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,673 psi | 72% | 2641 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 36,303 psi | 56% | 2526 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,781 psi | 55% | 2467 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 53,998 psi | 83% | 2664 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 54,056 psi | 83% | 2680 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 45,324 psi | 70% | 2582 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,176 psi | 63% | 2566 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 37,768 psi | 58% | 2503 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 52,112 psi | 80% | 2674 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,596 psi | 62% | 2569 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 31,865 psi | 49% | 2425 fps | 97.9% |
| Vihtavuori N560 | 60.7 gr | 92% | 47,021 psi | 72% | 2785 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 96% | 43,308 psi | 67% | 2703 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,263 psi | 62% | 2536 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,177 psi | 65% | 2625 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,396 psi | 39% | 2336 fps | 97.1% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,074 psi | 62% | 2559 fps | 95.5% |
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 97 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 160gr | Winchester Silvertip. Norma MRP delivers the highest muzzle velocity at 2,972 fps; across all powders the maximum-charge window runs from 1,739 fps to 2,972 fps. Accurate 3100 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2217, ADI AR 2225 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-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 160gr | Winchester Silvertip they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Norma 217, ReloadSwiss RS 80 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.