Load Specifications
Bullet Manufacturer:Rhino Bullets
Bullet Weight:165 gr
Bullet Diameter:0.307"
Bullet Length:<<locked>>
Case Length (l3):2.003"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:74 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:15.0
Load data in caliber .300 Rem. SA Ultra Mag. with .307 | 165gr | Rhino Solid Shank bullet and 102 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Alliant Power Pro 2000-MR.
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 2015 | <<locked>> | 86% | 58,813 psi | 90% | 2808 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 57,290 psi | 88% | 2838 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 57,595 psi | 89% | 2835 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,651 psi | 86% | 2851 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,855 psi | 87% | 2838 fps | 97.2% |
| Accurate 4064 | <<locked>> | 92% | 57,450 psi | 88% | 2881 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 57,682 psi | 89% | 2972 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 88% | 58,001 psi | 89% | 2917 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 55,463 psi | 85% | 2864 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,753 psi | 87% | 2864 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,928 psi | 89% | 2838 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,856 psi | 89% | 3041 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,317 psi | 85% | 2884 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 58,117 psi | 89% | 2808 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,941 psi | 86% | 2907 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,824 psi | 84% | 2969 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,304 psi | 87% | 3009 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,320 psi | 60% | 2703 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,845 psi | 67% | 2861 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,769 psi | 89% | 2930 fps | 99.8% |
| Bofors RP3 | <<locked>> | 92% | 56,130 psi | 86% | 2904 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,275 psi | 87% | 2871 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 58,523 psi | 90% | 2844 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,304 psi | 87% | 2894 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 58,552 psi | 90% | 2999 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 57,595 psi | 89% | 2858 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 58,624 psi | 90% | 2884 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 57,029 psi | 88% | 2913 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 98% | 56,594 psi | 87% | 2966 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 96% | 57,217 psi | 88% | 2927 fps | 97% |
| Hodgdon H4895 | <<locked>> | 88% | 58,581 psi | 90% | 2927 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,082 psi | 79% | 2844 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 58,044 psi | 89% | 2959 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,711 psi | 89% | 3009 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,476 psi | 55% | 1752 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,202 psi | 86% | 2877 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 58,508 psi | 90% | 2904 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 58,436 psi | 90% | 2897 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 58,523 psi | 90% | 2881 fps | 98.2% |
| IMR 4198 | <<locked>> | 82% | 58,160 psi | 89% | 2766 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,318 psi | 87% | 2894 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,943 psi | 89% | 2900 fps | 98.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,056 psi | 83% | 2904 fps | 99.6% |
| IMR 4895 | <<locked>> | 90% | 57,377 psi | 88% | 2936 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,753 psi | 87% | 2864 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 57,363 psi | 88% | 2851 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,740 psi | 89% | 2887 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 57,377 psi | 88% | 2841 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 58,160 psi | 89% | 2890 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 57,450 psi | 88% | 2897 fps | 99.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 58,450 psi | 90% | 2933 fps | 98.5% |
| Norma 201 | <<locked>> | 88% | 56,623 psi | 87% | 2858 fps | 100% |
| Norma 202 | <<locked>> | 88% | 57,217 psi | 88% | 2861 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,172 psi | 85% | 2894 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 57,261 psi | 88% | 2946 fps | 96.3% |
| Norma URPᴾ | <<locked>> | 100% | 56,376 psi | 87% | 2956 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 90% | 55,912 psi | 86% | 2923 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,158 psi | 85% | 2949 fps | 98.6% |
| Ramshot TAC | <<locked>> | 86% | 57,174 psi | 88% | 2887 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,898 psi | 88% | 2904 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,798 psi | 89% | 2867 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,955 psi | 55% | 1791 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,202 psi | 86% | 2841 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 57,479 psi | 88% | 2897 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,724 psi | 87% | 2976 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 56,130 psi | 86% | 3009 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 57,029 psi | 88% | 2989 fps | 99.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,753 psi | 87% | 3018 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 86% | 57,392 psi | 88% | 2838 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,043 psi | 88% | 2858 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,985 psi | 86% | 2894 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 56,275 psi | 87% | 2871 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 57,450 psi | 88% | 2897 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,740 psi | 89% | 2887 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 58,160 psi | 89% | 2890 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 58,450 psi | 90% | 2933 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,711 psi | 89% | 2956 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,608 psi | 86% | 2864 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,405 psi | 87% | 2887 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 58,146 psi | 89% | 2795 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 58,276 psi | 90% | 2792 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,783 psi | 89% | 2848 fps | 98.1% |
| Somchem S321 | <<locked>> | 84% | 58,421 psi | 90% | 2900 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 57,493 psi | 88% | 2795 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,216 psi | 85% | 2854 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 56,057 psi | 86% | 2887 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,633 psi | 78% | 2904 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 57,667 psi | 89% | 2756 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 58,378 psi | 90% | 2779 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,927 psi | 88% | 2822 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 57,696 psi | 89% | 2838 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,754 psi | 89% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,317 psi | 85% | 2897 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 57,450 psi | 88% | 2864 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,724 psi | 86% | 2835 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 57,957 psi | 89% | 2956 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,989 psi | 66% | 2779 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,796 psi | 86% | 2881 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 57,377 psi | 88% | 2913 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,898 psi | 88% | 2969 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,201 psi | 54% | 2700 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,376 psi | 87% | 2897 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 2015 | <<locked>> | 80% | 48,863 psi | 75% | 2671 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,650 psi | 83% | 2789 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,626 psi | 64% | 2595 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,675 psi | 75% | 2749 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,746 psi | 72% | 2674 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 39,378 psi | 61% | 2592 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 35,389 psi | 54% | 2569 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 45,092 psi | 69% | 2707 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 38,276 psi | 59% | 2552 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,137 psi | 73% | 2713 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,630 psi | 73% | 2700 fps | 100% |
| Alliant Power Pro 2000-MR | 53.1 gr | 80% | 40,915 psi | 63% | 2733 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,029 psi | 59% | 2575 fps | 98.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,882 psi | 84% | 2766 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,828 psi | 63% | 2641 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,520 psi | 55% | 2582 fps | 95.8% |
| Alliant Reloder-17 | 52.3 gr | 80% | 32,750 psi | 50% | 2539 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,719 psi | 47% | 2484 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 38,232 psi | 59% | 2733 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,324 psi | 68% | 2707 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 37,594 psi | 58% | 2579 fps | 98.6% |
| Bofors RP7 | <<locked>> | 90% | 46,615 psi | 72% | 2710 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,747 psi | 75% | 2700 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,948 psi | 71% | 2733 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,894 psi | 78% | 2884 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 80% | 53,795 psi | 83% | 2805 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 54,911 psi | 84% | 2831 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,537 psi | 59% | 2582 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 90% | 43,453 psi | 67% | 2736 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 92% | 50,444 psi | 78% | 2818 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 45,527 psi | 70% | 2717 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,719 psi | 47% | 2428 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,437 psi | 64% | 2687 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 92% | 46,398 psi | 71% | 2812 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,426 psi | 41% | 1565 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,584 psi | 67% | 2667 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 45,194 psi | 70% | 2710 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,190 psi | 62% | 2585 fps | 97.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,426 psi | 70% | 2661 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 54,636 psi | 84% | 2720 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 46,746 psi | 72% | 2736 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,440 psi | 70% | 2690 fps | 95.5% |
| IMR 4831 | <<locked>> | 86% | 34,330 psi | 53% | 2530 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 41,814 psi | 64% | 2671 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 80% | 47,137 psi | 73% | 2713 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 53,417 psi | 82% | 2799 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,280 psi | 68% | 2687 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,947 psi | 69% | 2641 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 40,132 psi | 62% | 2592 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 39,842 psi | 61% | 2585 fps | 95.6% |
| Lovex S070 | <<locked>> | 90% | 42,757 psi | 66% | 2664 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 44,135 psi | 68% | 2657 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 44,527 psi | 69% | 2667 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,190 psi | 62% | 2628 fps | 98.4% |
| Norma 204 | <<locked>> | 98% | 53,476 psi | 82% | 2887 fps | 95.6% |
| Norma URP | <<locked>> | 86% | 35,607 psi | 55% | 2572 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 39,639 psi | 61% | 2638 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 39,842 psi | 61% | 2671 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 47,079 psi | 72% | 2720 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,557 psi | 72% | 2740 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,705 psi | 78% | 2759 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,731 psi | 41% | 1601 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,881 psi | 81% | 2795 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,524 psi | 64% | 2621 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,917 psi | 66% | 2743 fps | 98.4% |
| ReloadSwiss RS 60 | 52.3 gr | 80% | 34,867 psi | 54% | 2608 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 35,172 psi | 54% | 2589 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,840 psi | 58% | 2654 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 48,182 psi | 74% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,047 psi | 65% | 2608 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 35,331 psi | 54% | 2520 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 90% | 46,615 psi | 72% | 2710 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,842 psi | 61% | 2585 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,280 psi | 68% | 2687 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,132 psi | 62% | 2592 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 42,757 psi | 66% | 2664 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,303 psi | 56% | 2569 fps | 97.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,310 psi | 70% | 2690 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,526 psi | 67% | 2674 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,513 psi | 70% | 2612 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,927 psi | 58% | 2477 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,527 psi | 69% | 2631 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 51,082 psi | 79% | 2795 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,107 psi | 69% | 2612 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,136 psi | 69% | 2690 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 36,245 psi | 56% | 2530 fps | 97.8% |
| Somchem S365 | <<locked>> | 80% | 26,310 psi | 40% | 2356 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 51,343 psi | 79% | 2671 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,847 psi | 71% | 2605 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,611 psi | 64% | 2592 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,003 psi | 65% | 2598 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,389 psi | 53% | 2464 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 84% | 34,983 psi | 54% | 2523 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 47,181 psi | 73% | 2707 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,625 psi | 63% | 2589 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,767 psi | 57% | 2575 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 92% | 33,025 psi | 51% | 2559 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,589 psi | 47% | 2388 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 46,934 psi | 72% | 2753 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,453 psi | 67% | 2736 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,922 psi | 48% | 2566 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,047 psi | 66% | 2677 fps | 99.2% |
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 102 powders for .300 Rem. SA Ultra Mag. loaded with the .307 | 165gr | Rhino Solid Shank. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,041 fps; across all powders the maximum-charge window runs from 1,752 fps to 3,041 fps. Accurate 4350 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.307" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for .300 Rem. SA Ultra Mag. with the .307 | 165gr | Rhino Solid Shank 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.