Load Specifications
Bullet Manufacturer:Sellier & Bellot
Bullet Weight:165 gr
Bullet Diameter:0.308"
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:1:11.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 165gr | Sellier & Bellot TXRG bullet and 105 powders. The key underlying parameters are shown in the table above.
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>> | 88% | 58,552 psi | 90% | 2779 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,985 psi | 88% | 2808 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,855 psi | 87% | 2802 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,405 psi | 85% | 2825 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,405 psi | 87% | 2795 fps | 96.5% |
| Accurate 4064 | <<locked>> | 94% | 56,521 psi | 87% | 2844 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 52,402 psi | 81% | 2867 fps | 99.1% |
| Accurate LT-30 | <<locked>> | 82% | 57,392 psi | 88% | 2723 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 57,812 psi | 89% | 2749 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 57,667 psi | 89% | 2884 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 96% | 58,378 psi | 90% | 2877 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,637 psi | 87% | 2835 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 57,058 psi | 88% | 2805 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 58,624 psi | 90% | 2943 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 57,217 psi | 88% | 2999 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 58,117 psi | 89% | 2897 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 58,015 psi | 89% | 2782 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 55,361 psi | 85% | 2871 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,937 psi | 78% | 2874 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 98% | 55,361 psi | 85% | 2969 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,100 psi | 56% | 2598 fps | 97.2% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,478 psi | 87% | 2717 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 57,334 psi | 88% | 2897 fps | 99.6% |
| Bofors RP3 | <<locked>> | 94% | 55,332 psi | 85% | 2864 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 55,811 psi | 86% | 2828 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 88% | 58,450 psi | 90% | 2815 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,782 psi | 86% | 2864 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 57,841 psi | 89% | 2963 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 84% | 57,290 psi | 88% | 2828 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 58,552 psi | 90% | 2858 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 56,608 psi | 87% | 2877 fps | 99.2% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 55,593 psi | 86% | 2920 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 98% | 56,536 psi | 87% | 2881 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 90% | 58,204 psi | 90% | 2894 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,992 psi | 72% | 2753 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 57,305 psi | 88% | 2923 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 57,000 psi | 88% | 2959 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,099 psi | 54% | 1713 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,927 psi | 86% | 2844 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 57,812 psi | 89% | 2874 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 58,001 psi | 89% | 2861 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 92% | 58,247 psi | 90% | 2841 fps | 97.7% |
| IMR 4198 | <<locked>> | 84% | 58,204 psi | 90% | 2740 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,083 psi | 80% | 2795 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 98% | 57,551 psi | 89% | 2861 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,632 psi | 76% | 2808 fps | 98.8% |
| IMR 4895 | <<locked>> | 92% | 56,753 psi | 87% | 2900 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 56,637 psi | 87% | 2835 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 56,913 psi | 88% | 2822 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 57,334 psi | 88% | 2858 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 57,435 psi | 88% | 2812 fps | 99.9% |
| Lovex S062 | <<locked>> | 94% | 57,580 psi | 89% | 2854 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,666 psi | 87% | 2851 fps | 98.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,969 psi | 83% | 2831 fps | 97.3% |
| Norma 201 | <<locked>> | 90% | 56,115 psi | 86% | 2825 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,695 psi | 87% | 2828 fps | 100% |
| Norma 203B | <<locked>> | 94% | 58,189 psi | 90% | 2910 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 51,488 psi | 79% | 2854 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 94% | 58,769 psi | 90% | 2936 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,778 psi | 78% | 2851 fps | 97.4% |
| Ramshot TAC | <<locked>> | 88% | 57,159 psi | 88% | 2851 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 56,507 psi | 87% | 2871 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 86% | 57,812 psi | 89% | 2838 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,549 psi | 55% | 1755 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,130 psi | 86% | 2815 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 57,029 psi | 88% | 2858 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,854 psi | 86% | 2940 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,303 psi | 85% | 2972 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,750 psi | 80% | 2887 fps | 98.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,170 psi | 80% | 2910 fps | 98.5% |
| Rottweil R 901 | <<locked>> | 88% | 57,392 psi | 88% | 2812 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,637 psi | 87% | 2822 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 58,711 psi | 90% | 2904 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 55,811 psi | 86% | 2828 fps | 96.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,666 psi | 87% | 2851 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 90% | 57,334 psi | 88% | 2858 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 57,580 psi | 89% | 2854 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,969 psi | 83% | 2831 fps | 97.3% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,840 psi | 86% | 2785 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 56,971 psi | 88% | 2917 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,492 psi | 85% | 2759 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,376 psi | 85% | 2828 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,043 psi | 86% | 2854 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 57,986 psi | 89% | 2766 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 57,899 psi | 89% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 57,522 psi | 88% | 2808 fps | 97.5% |
| Somchem S321 | <<locked>> | 86% | 57,986 psi | 89% | 2867 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 57,116 psi | 88% | 2762 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 58,624 psi | 90% | 2871 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 55,303 psi | 85% | 2851 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,963 psi | 71% | 2805 fps | 100% |
| Vihtavuori N130 | <<locked>> | 86% | 57,667 psi | 89% | 2730 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 58,044 psi | 89% | 2749 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 56,043 psi | 86% | 2789 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 57,072 psi | 88% | 2802 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 57,087 psi | 88% | 2831 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,389 psi | 84% | 2858 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 88% | 57,406 psi | 88% | 2835 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 55,419 psi | 85% | 2805 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,200 psi | 82% | 2858 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,769 psi | 60% | 2674 fps | 97.2% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,201 psi | 85% | 2841 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 57,014 psi | 88% | 2884 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,593 psi | 86% | 2920 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,767 psi | 86% | 2861 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 45,876 psi | 71% | 2602 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,951 psi | 77% | 2710 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,421 psi | 59% | 2523 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,092 psi | 69% | 2667 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 49,574 psi | 76% | 2687 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 36,332 psi | 56% | 2513 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 37,014 psi | 57% | 2589 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 54,012 psi | 83% | 2677 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 54,418 psi | 84% | 2703 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 42,163 psi | 65% | 2621 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 35,795 psi | 55% | 2470 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,164 psi | 68% | 2635 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 44,019 psi | 68% | 2628 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,503 psi | 79% | 2835 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 38,043 psi | 59% | 2638 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,186 psi | 54% | 2493 fps | 97.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,634 psi | 79% | 2697 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,913 psi | 58% | 2552 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,215 psi | 54% | 2546 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 82% | 32,518 psi | 50% | 2507 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,894 psi | 49% | 2490 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,171 psi | 82% | 2674 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,075 psi | 63% | 2618 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 34,708 psi | 53% | 2493 fps | 97.5% |
| Bofors RP7 | <<locked>> | 94% | 49,197 psi | 76% | 2723 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,079 psi | 71% | 2628 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,641 psi | 66% | 2651 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,007 psi | 72% | 2792 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 80% | 50,328 psi | 77% | 2730 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,140 psi | 79% | 2753 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 38,145 psi | 59% | 2549 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 94% | 45,513 psi | 70% | 2749 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 96% | 53,272 psi | 82% | 2831 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 42,482 psi | 65% | 2635 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,082 psi | 49% | 2441 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,203 psi | 59% | 2598 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 96% | 49,313 psi | 76% | 2831 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,092 psi | 40% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,712 psi | 63% | 2585 fps | 98.4% |
| IMR 3031 | <<locked>> | 80% | 41,771 psi | 64% | 2631 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,550 psi | 58% | 2503 fps | 96.8% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,571 psi | 70% | 2631 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 51,764 psi | 80% | 2654 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 49,095 psi | 76% | 2746 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 48,066 psi | 74% | 2707 fps | 95.6% |
| IMR 4831 | <<locked>> | 90% | 35,694 psi | 55% | 2539 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 38,827 psi | 60% | 2585 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 80% | 44,164 psi | 68% | 2635 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 49,617 psi | 76% | 2713 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,915 psi | 63% | 2602 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 42,366 psi | 65% | 2562 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 37,391 psi | 58% | 2510 fps | 98.4% |
| Lovex S065 | <<locked>> | 90% | 41,698 psi | 64% | 2598 fps | 95.6% |
| Lovex S070 | <<locked>> | 94% | 44,831 psi | 69% | 2677 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 41,350 psi | 64% | 2579 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 41,394 psi | 64% | 2589 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,304 psi | 57% | 2543 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 37,376 psi | 58% | 2589 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 36,666 psi | 56% | 2549 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 94% | 41,785 psi | 64% | 2684 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 44,019 psi | 68% | 2631 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,236 psi | 67% | 2651 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,659 psi | 73% | 2680 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,382 psi | 41% | 1568 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,516 psi | 76% | 2717 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 44,063 psi | 68% | 2641 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,436 psi | 61% | 2651 fps | 97.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 32,242 psi | 50% | 2510 fps | 98.3% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,883 psi | 57% | 2605 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,914 psi | 61% | 2671 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 45,266 psi | 70% | 2625 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,262 psi | 60% | 2530 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 32,706 psi | 50% | 2438 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 94% | 49,197 psi | 76% | 2723 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,698 psi | 64% | 2598 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,915 psi | 63% | 2602 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 37,391 psi | 58% | 2510 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 94% | 44,831 psi | 69% | 2677 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,272 psi | 80% | 2736 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,649 psi | 52% | 2484 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,431 psi | 81% | 2717 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,047 psi | 65% | 2602 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,596 psi | 62% | 2589 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,859 psi | 66% | 2539 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,476 psi | 55% | 2408 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 47,094 psi | 72% | 2648 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 47,543 psi | 73% | 2710 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 42,380 psi | 65% | 2539 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,858 psi | 64% | 2605 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 33,678 psi | 52% | 2448 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 27,543 psi | 42% | 2372 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 48,428 psi | 75% | 2602 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,091 psi | 66% | 2536 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,595 psi | 59% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,276 psi | 60% | 2526 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,937 psi | 49% | 2388 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 36,680 psi | 56% | 2536 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 44,164 psi | 68% | 2628 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 37,753 psi | 58% | 2513 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 38,464 psi | 59% | 2592 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 96% | 34,200 psi | 53% | 2572 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,313 psi | 47% | 2356 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 43,366 psi | 67% | 2671 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 45,788 psi | 70% | 2756 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,914 psi | 61% | 2592 fps | 98.4% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 105 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 165gr | Sellier & Bellot TXRG. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,713 fps to 2,999 fps. Accurate 4350 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 (448 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:11.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.