Load Specifications
Bullet:.284 | 160gr | Speer TBBC
Bullet Manufacturer:Speer
Bullet Weight:160 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:1:10.5
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 160gr | Speer TBBC bullet and 106 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Hodgdon H414.
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>> | 84% | 57,856 psi | 89% | 2694 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,506 psi | 85% | 2720 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,837 psi | 81% | 2759 fps | 99.6% |
| Accurate 4064 | <<locked>> | 86% | 58,030 psi | 89% | 2746 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,071 psi | 85% | 2808 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 54,839 psi | 84% | 2897 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 82% | 57,058 psi | 88% | 2779 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 58,218 psi | 90% | 2782 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 56,028 psi | 86% | 2851 fps | 98.5% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,606 psi | 82% | 2841 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 57,827 psi | 89% | 2910 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,463 psi | 85% | 2756 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,869 psi | 86% | 2779 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 55,970 psi | 86% | 2864 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 57,145 psi | 88% | 2887 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,230 psi | 85% | 2838 fps | 98.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,373 psi | 81% | 2838 fps | 98.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,487 psi | 76% | 2779 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,250 psi | 67% | 2707 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 57,058 psi | 88% | 2972 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 56,898 psi | 88% | 2799 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,225 psi | 74% | 2769 fps | 97.3% |
| Bofors RP3 | <<locked>> | 86% | 56,420 psi | 87% | 2776 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,373 psi | 81% | 2838 fps | 98.2% |
| Bofors RP7 | <<locked>> | 90% | 55,753 psi | 86% | 2762 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 86% | 56,695 psi | 87% | 2792 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 57,305 psi | 88% | 2861 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 90% | 57,087 psi | 88% | 2818 fps | 98.9% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 57,580 psi | 89% | 2848 fps | 97.1% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 56,275 psi | 87% | 2828 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 82% | 57,725 psi | 89% | 2785 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 56,072 psi | 86% | 2785 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 57,914 psi | 89% | 2822 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,264 psi | 65% | 2730 fps | 96.3% |
| Hodgdon Superformance | <<locked>> | 92% | 57,870 psi | 89% | 2904 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,448 psi | 56% | 1703 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 58,740 psi | 90% | 2789 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 58,581 psi | 90% | 2759 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 57,827 psi | 89% | 2769 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 56,753 psi | 87% | 2749 fps | 99.5% |
| IMR 4350 | <<locked>> | 94% | 56,536 psi | 87% | 2792 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 57,246 psi | 88% | 2785 fps | 99.5% |
| IMR 4831 | <<locked>> | 94% | 55,434 psi | 85% | 2799 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 57,276 psi | 88% | 2808 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,521 psi | 85% | 2782 fps | 96.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,271 psi | 79% | 2818 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 82% | 57,406 psi | 88% | 2749 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 55,869 psi | 86% | 2703 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 58,001 psi | 89% | 2759 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 57,464 psi | 88% | 2785 fps | 99.9% |
| Lovex S070 | <<locked>> | 94% | 58,682 psi | 90% | 2825 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,830 psi | 67% | 2615 fps | 98.5% |
| Norma 201 | <<locked>> | 82% | 55,927 psi | 86% | 2723 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,405 psi | 87% | 2717 fps | 100% |
| Norma 203B | <<locked>> | 86% | 58,479 psi | 90% | 2815 fps | 100% |
| Norma 204 | <<locked>> | 94% | 57,464 psi | 88% | 2848 fps | 98.6% |
| Norma MRPᴾ | <<locked>> | 100% | 55,622 psi | 86% | 2923 fps | 99.5% |
| Norma URP | <<locked>> | 94% | 57,450 psi | 88% | 2844 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 55,883 psi | 86% | 2792 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,242 psi | 79% | 2828 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 94% | 56,231 psi | 87% | 2848 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,658 psi | 70% | 2707 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,144 psi | 57% | 1745 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 56,536 psi | 87% | 2776 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 56,956 psi | 88% | 2848 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 56,739 psi | 87% | 2877 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 58,711 psi | 90% | 2884 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 57,363 psi | 88% | 2917 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,018 psi | 65% | 2723 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 84% | 56,449 psi | 87% | 2723 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 56,289 psi | 87% | 2769 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 57,783 psi | 89% | 2822 fps | 97.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 58,450 psi | 90% | 2884 fps | 99% |
| Rottweil R 907 | <<locked>> | 90% | 55,753 psi | 86% | 2762 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 92% | 57,464 psi | 88% | 2785 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 57,406 psi | 88% | 2749 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 58,001 psi | 89% | 2759 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 58,682 psi | 90% | 2825 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 58,088 psi | 89% | 2831 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 58,479 psi | 90% | 2789 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,593 psi | 86% | 2753 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,623 psi | 87% | 2651 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 57,421 psi | 88% | 2654 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 57,072 psi | 88% | 2736 fps | 99.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 57,943 psi | 89% | 2877 fps | 98.9% |
| Somchem S335 | <<locked>> | 82% | 56,391 psi | 87% | 2651 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 57,943 psi | 89% | 2769 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 56,376 psi | 87% | 2766 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 55,970 psi | 86% | 2762 fps | 96.7% |
| Somchem S365 | <<locked>> | 96% | 56,826 psi | 87% | 2848 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,390 psi | 85% | 2805 fps | 99.1% |
| Vihtavuori N133 | <<locked>> | 82% | 57,130 psi | 88% | 2631 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 56,826 psi | 87% | 2680 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 56,956 psi | 88% | 2694 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 57,711 psi | 89% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,941 psi | 86% | 2785 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,952 psi | 78% | 2723 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 86% | 58,697 psi | 90% | 2740 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 58,755 psi | 90% | 2844 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 55,666 psi | 86% | 2854 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 56,028 psi | 86% | 2913 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,550 psi | 85% | 2756 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 57,609 psi | 89% | 2864 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,715 psi | 69% | 2835 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,622 psi | 86% | 2759 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,288 psi | 85% | 2795 fps | 98.4% |
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% | 50,865 psi | 78% | 2605 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,820 psi | 75% | 2615 fps | 98% |
| Accurate 3100 | <<locked>> | 86% | 32,837 psi | 51% | 2385 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 48,211 psi | 74% | 2612 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,579 psi | 56% | 2484 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 98% | 50,894 psi | 78% | 2835 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 53,505 psi | 82% | 2726 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,672 psi | 70% | 2589 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 90% | 43,337 psi | 67% | 2631 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 96% | 47,094 psi | 72% | 2726 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,227 psi | 77% | 2799 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,093 psi | 71% | 2612 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,052 psi | 75% | 2677 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,824 psi | 55% | 2493 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,437 psi | 62% | 2615 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,234 psi | 62% | 2569 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,277 psi | 62% | 2615 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,237 psi | 40% | 2260 fps | 96.2% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,633 psi | 49% | 2428 fps | 95.2% |
| Alliant Reloder-26 | 51.5 gr | 82% | 29,849 psi | 46% | 2421 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,432 psi | 82% | 2746 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 42,424 psi | 65% | 2657 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 46,166 psi | 71% | 2621 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,277 psi | 62% | 2615 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 40,872 psi | 63% | 2500 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 80% | 46,543 psi | 72% | 2631 fps | 99.5% |
| Hodgdon H414 | 47.9 gr | 80% | 38,508 psi | 59% | 2530 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 80% | 41,495 psi | 64% | 2546 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 96% | 50,256 psi | 77% | 2733 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 96% | 49,400 psi | 76% | 2717 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 54,143 psi | 83% | 2736 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,330 psi | 51% | 2392 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,792 psi | 78% | 2720 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,595 psi | 61% | 2667 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 37,492 psi | 58% | 2536 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,093 psi | 42% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,895 psi | 80% | 2690 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 54,723 psi | 84% | 2710 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,051 psi | 74% | 2621 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,227 psi | 77% | 2648 fps | 98.8% |
| IMR 4350 | <<locked>> | 82% | 38,827 psi | 60% | 2480 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,279 psi | 65% | 2533 fps | 97.2% |
| IMR 4831 | <<locked>> | 80% | 35,244 psi | 54% | 2441 fps | 98% |
| IMR 4895 | <<locked>> | 80% | 50,328 psi | 77% | 2703 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,095 psi | 76% | 2674 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 98% | 47,935 psi | 74% | 2759 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 80% | 53,751 psi | 83% | 2700 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 52,663 psi | 81% | 2657 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,269 psi | 74% | 2618 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,740 psi | 61% | 2484 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 37,942 psi | 58% | 2464 fps | 96.3% |
| Lovex S071 | <<locked>> | 90% | 31,894 psi | 49% | 2362 fps | 95% |
| Norma 201 | <<locked>> | 80% | 52,373 psi | 81% | 2671 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,171 psi | 82% | 2671 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,428 psi | 75% | 2664 fps | 100% |
| Norma 204 | <<locked>> | 84% | 41,089 psi | 63% | 2566 fps | 95% |
| Norma MRP | <<locked>> | 88% | 36,840 psi | 57% | 2569 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 36,477 psi | 56% | 2480 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 48,805 psi | 75% | 2690 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 44,541 psi | 69% | 2703 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 35,259 psi | 54% | 2464 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 96% | 39,653 psi | 61% | 2585 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,586 psi | 42% | 1555 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,659 psi | 72% | 2618 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 52,924 psi | 81% | 2789 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,946 psi | 66% | 2667 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,390 psi | 56% | 2503 fps | 98% |
| ReloadSwiss RS 70 | 49.8 gr | 80% | 35,433 psi | 55% | 2510 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,593 psi | 56% | 2589 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 49,835 psi | 77% | 2628 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,511 psi | 67% | 2572 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 44,889 psi | 69% | 2608 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 41,959 psi | 65% | 2608 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 40,872 psi | 63% | 2500 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,740 psi | 61% | 2484 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 53,751 psi | 83% | 2700 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 48,269 psi | 74% | 2618 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,942 psi | 58% | 2464 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,498 psi | 68% | 2621 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 54,520 psi | 84% | 2733 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,895 psi | 80% | 2700 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,287 psi | 82% | 2608 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,020 psi | 69% | 2484 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,841 psi | 60% | 2428 fps | 96.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,568 psi | 64% | 2602 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 52,953 psi | 81% | 2605 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 54,346 psi | 84% | 2720 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,888 psi | 68% | 2572 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,037 psi | 75% | 2654 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 33,011 psi | 51% | 2441 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 37,434 psi | 58% | 2484 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 53,824 psi | 83% | 2589 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,227 psi | 77% | 2592 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,299 psi | 77% | 2605 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,887 psi | 64% | 2503 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,826 psi | 58% | 2477 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 39,117 psi | 60% | 2513 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 48,486 psi | 75% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,275 psi | 57% | 2480 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 80% | 28,732 psi | 44% | 2333 fps | 96.3% |
| Vihtavuori N560 | <<locked>> | 96% | 48,979 psi | 75% | 2795 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,057 psi | 57% | 2454 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 38,696 psi | 60% | 2533 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,743 psi | 38% | 2287 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,141 psi | 80% | 2710 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,105 psi | 65% | 2575 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 106 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 160gr | Speer TBBC. Alliant Reloder-26 delivers the highest muzzle velocity at 2,972 fps; across all powders the maximum-charge window runs from 1,703 fps to 2,972 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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. ReloadSwiss RS 70, Alliant Reloder-26, Hodgdon H414 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 160gr | Speer TBBC 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.