
Load Specifications
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 160gr | Peregrine VRG-3 Lever 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 60, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.
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% | 55,492 psi | 85% | 2812 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 57,740 psi | 89% | 2890 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 57,203 psi | 88% | 2877 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 56,043 psi | 86% | 2900 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 57,174 psi | 88% | 2881 fps | 96.9% |
| Accurate 4064 | <<locked>> | 94% | 57,087 psi | 88% | 2923 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,243 psi | 82% | 2949 fps | 99.2% |
| Accurate LT-30 | <<locked>> | 82% | 58,001 psi | 89% | 2799 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 58,436 psi | 90% | 2828 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 58,407 psi | 90% | 2966 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 55,796 psi | 86% | 2907 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 88% | 57,305 psi | 88% | 2913 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 58,204 psi | 90% | 2890 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,463 psi | 85% | 2969 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 58,436 psi | 90% | 3091 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,608 psi | 86% | 2933 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 58,523 psi | 90% | 2858 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,246 psi | 87% | 2953 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,648 psi | 79% | 2956 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,449 psi | 87% | 3054 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,521 psi | 56% | 2674 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,538 psi | 62% | 2822 fps | 96.3% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 57,421 psi | 88% | 2799 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 58,566 psi | 90% | 2982 fps | 99.7% |
| Bofors RP3 | <<locked>> | 94% | 55,927 psi | 86% | 2943 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 56,507 psi | 87% | 2913 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,767 psi | 86% | 2848 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 56,826 psi | 87% | 2946 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,940 psi | 85% | 2989 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 84% | 58,160 psi | 89% | 2910 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,579 psi | 86% | 2884 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 57,464 psi | 88% | 2963 fps | 99.3% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 56,710 psi | 87% | 3005 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 98% | 57,537 psi | 89% | 2966 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 88% | 55,187 psi | 85% | 2920 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,747 psi | 73% | 2831 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 58,363 psi | 90% | 3009 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 58,160 psi | 89% | 3051 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,012 psi | 54% | 1768 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,782 psi | 87% | 2927 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 58,769 psi | 90% | 2956 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 58,798 psi | 90% | 2943 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,550 psi | 85% | 2871 fps | 97.4% |
| IMR 4198 | <<locked>> | 84% | 58,668 psi | 90% | 2818 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,200 psi | 82% | 2884 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 98% | 58,697 psi | 90% | 2949 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,502 psi | 78% | 2887 fps | 99% |
| IMR 4895 | <<locked>> | 92% | 57,682 psi | 89% | 2986 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 57,305 psi | 88% | 2913 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 57,493 psi | 88% | 2900 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 57,827 psi | 89% | 2936 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 58,117 psi | 89% | 2894 fps | 100% |
| Lovex S062 | <<locked>> | 94% | 58,204 psi | 90% | 2936 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 57,551 psi | 89% | 2936 fps | 98.8% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,723 psi | 84% | 2913 fps | 97.5% |
| Norma 201 | <<locked>> | 90% | 56,884 psi | 88% | 2907 fps | 100% |
| Norma 202 | <<locked>> | 90% | 57,566 psi | 89% | 2910 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,376 psi | 85% | 2940 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 52,504 psi | 81% | 2936 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 92% | 56,202 psi | 86% | 2969 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,590 psi | 79% | 2933 fps | 97.7% |
| Ramshot TAC | <<locked>> | 88% | 58,073 psi | 89% | 2940 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 88% | 57,334 psi | 88% | 2953 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 86% | 58,682 psi | 90% | 2920 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,389 psi | 54% | 1808 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,971 psi | 88% | 2897 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 57,696 psi | 89% | 2940 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 56,869 psi | 87% | 3025 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 56,202 psi | 86% | 3054 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,229 psi | 82% | 2976 fps | 99.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,258 psi | 82% | 2999 fps | 98.8% |
| Rottweil R 901 | <<locked>> | 88% | 57,435 psi | 88% | 2884 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 57,305 psi | 88% | 2904 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 55,767 psi | 86% | 2933 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 56,507 psi | 87% | 2913 fps | 97% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 57,551 psi | 89% | 2936 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 57,827 psi | 89% | 2936 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 58,204 psi | 90% | 2936 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,723 psi | 84% | 2913 fps | 97.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 56,521 psi | 87% | 2867 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 58,073 psi | 89% | 3002 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 56,275 psi | 87% | 2841 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,217 psi | 86% | 2913 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,869 psi | 87% | 2936 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 58,566 psi | 90% | 2844 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 58,755 psi | 90% | 2838 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 58,175 psi | 89% | 2890 fps | 97.8% |
| Somchem S321 | <<locked>> | 84% | 55,056 psi | 85% | 2897 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 57,928 psi | 89% | 2844 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,651 psi | 86% | 2904 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 56,318 psi | 87% | 2933 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,036 psi | 72% | 2887 fps | 100% |
| Vihtavuori N130 | <<locked>> | 86% | 58,262 psi | 90% | 2805 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 58,740 psi | 90% | 2828 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 56,826 psi | 87% | 2864 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 58,160 psi | 89% | 2887 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 57,914 psi | 89% | 2910 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,332 psi | 85% | 2940 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 88% | 58,015 psi | 89% | 2917 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 56,130 psi | 86% | 2884 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,143 psi | 83% | 2940 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,407 psi | 61% | 2749 fps | 97.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,217 psi | 86% | 2923 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 58,030 psi | 89% | 2966 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 56,985 psi | 88% | 3012 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 90% | 56,768 psi | 87% | 2946 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% | 46,006 psi | 71% | 2671 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,357 psi | 77% | 2785 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,000 psi | 58% | 2579 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,426 psi | 70% | 2740 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 50,256 psi | 77% | 2769 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 35,998 psi | 55% | 2569 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 34,650 psi | 53% | 2595 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 54,476 psi | 84% | 2753 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 54,897 psi | 84% | 2782 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 42,308 psi | 65% | 2690 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 36,056 psi | 55% | 2539 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,454 psi | 68% | 2707 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 44,338 psi | 68% | 2697 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,982 psi | 80% | 2913 fps | 99.9% |
| Alliant Power Pro 2000-MR | 52.4 gr | 80% | 38,348 psi | 59% | 2710 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,302 psi | 54% | 2559 fps | 97.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,750 psi | 80% | 2769 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,058 psi | 59% | 2621 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,375 psi | 54% | 2615 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 82% | 32,590 psi | 50% | 2572 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,213 psi | 50% | 2562 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 37,739 psi | 58% | 2753 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,911 psi | 83% | 2749 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,655 psi | 64% | 2694 fps | 97.3% |
| Bofors RP3 | <<locked>> | 80% | 34,606 psi | 53% | 2552 fps | 97.5% |
| Bofors RP7 | <<locked>> | 94% | 49,835 psi | 77% | 2805 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,412 psi | 71% | 2700 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,960 psi | 66% | 2723 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,514 psi | 73% | 2867 fps | 99% |
| Hodgdon H322 | <<locked>> | 80% | 51,111 psi | 79% | 2808 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,953 psi | 80% | 2835 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 38,203 psi | 59% | 2615 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 94% | 46,238 psi | 71% | 2828 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 94% | 50,517 psi | 78% | 2854 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 42,685 psi | 66% | 2703 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,298 psi | 47% | 2454 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,653 psi | 59% | 2671 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 96% | 50,299 psi | 77% | 2920 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,063 psi | 40% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,988 psi | 63% | 2654 fps | 98.6% |
| IMR 3031 | <<locked>> | 80% | 42,047 psi | 65% | 2703 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,840 psi | 58% | 2575 fps | 96.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,963 psi | 71% | 2707 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 52,141 psi | 80% | 2730 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 49,966 psi | 77% | 2828 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 45,716 psi | 70% | 2733 fps | 95.1% |
| IMR 4831 | <<locked>> | 90% | 36,114 psi | 56% | 2612 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 38,972 psi | 60% | 2651 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 80% | 44,454 psi | 68% | 2707 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 50,111 psi | 77% | 2792 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,089 psi | 63% | 2671 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 42,728 psi | 66% | 2635 fps | 98.5% |
| Lovex S062 | <<locked>> | 80% | 37,536 psi | 58% | 2579 fps | 98.5% |
| Lovex S065 | <<locked>> | 88% | 39,624 psi | 61% | 2618 fps | 95% |
| Lovex S070 | <<locked>> | 94% | 45,310 psi | 70% | 2753 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 41,220 psi | 63% | 2641 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 41,669 psi | 64% | 2657 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,405 psi | 58% | 2608 fps | 97.3% |
| Norma URP | <<locked>> | 88% | 35,230 psi | 54% | 2602 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 36,941 psi | 57% | 2618 fps | 97% |
| Ramshot Hunter | <<locked>> | 94% | 42,264 psi | 65% | 2759 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 44,498 psi | 68% | 2707 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,830 psi | 67% | 2730 fps | 98.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,022 psi | 74% | 2756 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,281 psi | 40% | 1617 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,009 psi | 77% | 2795 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 44,324 psi | 68% | 2713 fps | 95.6% |
| ReloadSwiss RS 52 | 50.8 gr | 80% | 39,798 psi | 61% | 2723 fps | 97.4% |
| ReloadSwiss RS 60 | 51.6 gr | 80% | 32,445 psi | 50% | 2579 fps | 98.4% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 37,202 psi | 57% | 2674 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 40,422 psi | 62% | 2749 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 44,947 psi | 69% | 2690 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,160 psi | 60% | 2592 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 32,619 psi | 50% | 2497 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 94% | 49,835 psi | 77% | 2805 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 39,624 psi | 61% | 2618 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,089 psi | 63% | 2671 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 37,536 psi | 58% | 2579 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 94% | 45,310 psi | 70% | 2753 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,794 psi | 81% | 2812 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,765 psi | 52% | 2549 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,750 psi | 81% | 2792 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,467 psi | 65% | 2677 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,872 psi | 63% | 2661 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,859 psi | 66% | 2605 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,433 psi | 55% | 2467 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 44,585 psi | 69% | 2671 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 48,138 psi | 74% | 2789 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 42,337 psi | 65% | 2605 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,380 psi | 65% | 2680 fps | 98.4% |
| Somchem S355 | <<locked>> | 80% | 33,562 psi | 52% | 2507 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 27,543 psi | 42% | 2431 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 48,530 psi | 75% | 2671 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,192 psi | 66% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,595 psi | 59% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,479 psi | 61% | 2592 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,981 psi | 49% | 2448 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 36,999 psi | 57% | 2608 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 44,382 psi | 68% | 2700 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 37,971 psi | 58% | 2579 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 36,347 psi | 56% | 2605 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 96% | 34,461 psi | 53% | 2638 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,487 psi | 47% | 2418 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 43,961 psi | 68% | 2746 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 46,441 psi | 71% | 2835 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,292 psi | 62% | 2664 fps | 98.5% |
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 118 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 160gr | Peregrine VRG-3 Lever. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,091 fps; across all powders the maximum-charge window runs from 1,768 fps to 3,091 fps. Accurate 3100 gives the best case fill at 100 %, and 118 of the 118 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 160gr | Peregrine VRG-3 Lever they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 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.