Load Specifications
Bullet Manufacturer:Frontier Bullets
Bullet Weight:150 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:1:13.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 150gr | Frontier PH HPFB bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 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>> | 88% | 57,203 psi | 88% | 2913 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,825 psi | 86% | 2943 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 55,361 psi | 85% | 2933 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 57,827 psi | 89% | 3005 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 58,784 psi | 90% | 3028 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,894 psi | 78% | 2986 fps | 98.4% |
| Accurate LT-30 | <<locked>> | 82% | 56,072 psi | 86% | 2854 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 56,478 psi | 87% | 2881 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 56,391 psi | 87% | 3012 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 96% | 57,159 psi | 88% | 3005 fps | 99.4% |
| ADI AR 2219 | <<locked>> | 82% | 57,450 psi | 88% | 2982 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,579 psi | 86% | 2966 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 55,709 psi | 86% | 2946 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 57,101 psi | 88% | 3074 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,767 psi | 86% | 3127 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 56,927 psi | 88% | 3028 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 56,782 psi | 87% | 2920 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 57,653 psi | 89% | 3051 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,647 psi | 76% | 2989 fps | 98.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 57,682 psi | 89% | 3150 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,579 psi | 86% | 2851 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 56,014 psi | 86% | 3022 fps | 99.1% |
| Bofors RP3 | <<locked>> | 96% | 57,682 psi | 89% | 3045 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 57,827 psi | 89% | 3002 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 88% | 57,290 psi | 88% | 2949 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 58,218 psi | 90% | 3048 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 56,623 psi | 87% | 3097 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 84% | 56,231 psi | 87% | 2966 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 57,290 psi | 88% | 2989 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 55,317 psi | 85% | 3002 fps | 98.6% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,273 psi | 83% | 3041 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 90% | 56,898 psi | 88% | 3025 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,774 psi | 70% | 2867 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,941 psi | 86% | 3054 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 55,666 psi | 86% | 3074 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,896 psi | 54% | 1814 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 58,204 psi | 90% | 3025 fps | 99.9% |
| IMR 3031 | <<locked>> | 90% | 56,333 psi | 87% | 3009 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 56,637 psi | 87% | 2989 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 92% | 57,145 psi | 88% | 2966 fps | 96.8% |
| IMR 4198 | <<locked>> | 84% | 56,869 psi | 87% | 2877 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 56,347 psi | 87% | 2982 fps | 96.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,327 psi | 74% | 2923 fps | 98% |
| IMR 4895 | <<locked>> | 92% | 55,550 psi | 85% | 3031 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 88% | 55,579 psi | 86% | 2966 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 55,593 psi | 86% | 2949 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 55,637 psi | 86% | 2986 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,173 psi | 86% | 2940 fps | 99.7% |
| Lovex S062 | <<locked>> | 94% | 56,463 psi | 87% | 2989 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,303 psi | 85% | 2972 fps | 97.8% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,779 psi | 81% | 2953 fps | 96.3% |
| Norma 201 | <<locked>> | 92% | 58,610 psi | 90% | 3009 fps | 100% |
| Norma 202 | <<locked>> | 90% | 55,521 psi | 85% | 2963 fps | 100% |
| Norma 203B | <<locked>> | 94% | 56,753 psi | 87% | 3038 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 50,285 psi | 77% | 2976 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 94% | 57,421 psi | 88% | 3064 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,559 psi | 76% | 2966 fps | 96.3% |
| Ramshot TAC | <<locked>> | 88% | 55,840 psi | 86% | 2976 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,230 psi | 85% | 2999 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 86% | 56,768 psi | 87% | 2966 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,288 psi | 54% | 1857 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 58,798 psi | 90% | 3002 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,680 psi | 86% | 2979 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 58,073 psi | 89% | 3123 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 57,711 psi | 89% | 3156 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,517 psi | 78% | 3005 fps | 98.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,995 psi | 78% | 3025 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 88% | 56,086 psi | 86% | 2943 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 55,477 psi | 85% | 2953 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 57,203 psi | 88% | 3031 fps | 99.9% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 57,827 psi | 89% | 3002 fps | 96.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,303 psi | 85% | 2972 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,637 psi | 86% | 2986 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 56,463 psi | 87% | 2989 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,779 psi | 81% | 2953 fps | 96.3% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 58,740 psi | 90% | 2976 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 57,812 psi | 89% | 2992 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,390 psi | 85% | 3041 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 57,769 psi | 89% | 2943 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 58,088 psi | 89% | 3012 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 58,233 psi | 90% | 3035 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 56,927 psi | 88% | 2900 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 56,637 psi | 87% | 2890 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 56,173 psi | 86% | 2927 fps | 96.6% |
| Somchem S321 | <<locked>> | 86% | 56,826 psi | 87% | 3002 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 56,101 psi | 86% | 2897 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 57,276 psi | 88% | 2999 fps | 99.7% |
| Somchem S355 | <<locked>> | 98% | 57,450 psi | 88% | 3028 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,788 psi | 69% | 2920 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 86% | 56,681 psi | 87% | 2867 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,942 psi | 88% | 2884 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 58,305 psi | 90% | 2969 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 56,043 psi | 86% | 2940 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,709 psi | 86% | 2959 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,997 psi | 82% | 2979 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 88% | 55,956 psi | 86% | 2963 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 57,885 psi | 89% | 2986 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,996 psi | 80% | 2979 fps | 98.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,710 psi | 58% | 2779 fps | 96% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,896 psi | 83% | 2959 fps | 99.8% |
| Winchester 748 | <<locked>> | 88% | 55,709 psi | 86% | 3015 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 54,273 psi | 83% | 3041 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 92% | 58,146 psi | 89% | 3041 fps | 99.9% |
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 2015 | <<locked>> | 80% | 44,773 psi | 69% | 2726 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,733 psi | 75% | 2835 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,217 psi | 57% | 2635 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,845 psi | 67% | 2785 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 35,172 psi | 54% | 2618 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 38,392 psi | 59% | 2746 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 52,982 psi | 82% | 2808 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,374 psi | 82% | 2835 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,147 psi | 63% | 2736 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 37,159 psi | 57% | 2628 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 53,882 psi | 83% | 2933 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,149 psi | 66% | 2749 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 42,699 psi | 66% | 2749 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,198 psi | 77% | 2963 fps | 99.4% |
| Alliant Power Pro 2000-MR | 52 gr | 80% | 37,202 psi | 57% | 2743 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,301 psi | 53% | 2598 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,285 psi | 77% | 2828 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,927 psi | 57% | 2661 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 92% | 38,740 psi | 60% | 2756 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 84% | 33,750 psi | 52% | 2661 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,170 psi | 80% | 2802 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,103 psi | 62% | 2730 fps | 96% |
| Bofors RP3 | <<locked>> | 80% | 33,649 psi | 52% | 2595 fps | 96.4% |
| Bofors RP7 | <<locked>> | 98% | 54,346 psi | 84% | 2946 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,918 psi | 69% | 2743 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,669 psi | 64% | 2769 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,701 psi | 70% | 2907 fps | 98% |
| Hodgdon H322 | <<locked>> | 80% | 49,153 psi | 76% | 2861 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,067 psi | 77% | 2881 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 39,595 psi | 61% | 2710 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 98% | 50,633 psi | 78% | 2979 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 41,452 psi | 64% | 2749 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 33,388 psi | 51% | 2592 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,159 psi | 57% | 2703 fps | 97.4% |
| Hodgdon Superformance | <<locked>> | 98% | 51,590 psi | 79% | 3005 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,933 psi | 40% | 1624 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,784 psi | 61% | 2697 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 40,524 psi | 62% | 2749 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,564 psi | 56% | 2608 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,546 psi | 78% | 2854 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 50,517 psi | 78% | 2789 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,922 psi | 77% | 2874 fps | 95.2% |
| IMR 4831 | <<locked>> | 92% | 37,043 psi | 57% | 2697 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 37,811 psi | 58% | 2694 fps | 96.7% |
| IMR 8208 XBR | <<locked>> | 80% | 43,149 psi | 66% | 2749 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 48,501 psi | 75% | 2838 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 39,856 psi | 61% | 2717 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 41,408 psi | 64% | 2677 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 36,347 psi | 56% | 2618 fps | 97.5% |
| Lovex S065 | <<locked>> | 92% | 43,395 psi | 67% | 2762 fps | 95.2% |
| Lovex S070 | <<locked>> | 98% | 49,574 psi | 76% | 2897 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 40,263 psi | 62% | 2690 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 40,437 psi | 62% | 2707 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 36,318 psi | 56% | 2648 fps | 96.1% |
| Norma URP | <<locked>> | 92% | 38,841 psi | 60% | 2749 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 35,781 psi | 55% | 2657 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 98% | 46,311 psi | 71% | 2904 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 43,076 psi | 66% | 2743 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,279 psi | 65% | 2766 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,731 psi | 72% | 2799 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,368 psi | 41% | 1667 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,283 psi | 74% | 2841 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 45,818 psi | 70% | 2808 fps | 95% |
| ReloadSwiss RS 52 | 50.4 gr | 80% | 38,290 psi | 59% | 2759 fps | 96.1% |
| ReloadSwiss RS 60 | 51.2 gr | 80% | 31,589 psi | 49% | 2612 fps | 97.1% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 40,901 psi | 63% | 2822 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 44,454 psi | 68% | 2897 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 44,005 psi | 68% | 2743 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 38,247 psi | 59% | 2638 fps | 98% |
| Rottweil R 903 | <<locked>> | 80% | 31,589 psi | 49% | 2533 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 98% | 54,346 psi | 84% | 2946 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 43,395 psi | 67% | 2762 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,856 psi | 61% | 2717 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 36,347 psi | 56% | 2618 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 98% | 49,574 psi | 76% | 2897 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,242 psi | 79% | 2861 fps | 99.6% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 54,128 psi | 83% | 2940 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 34,925 psi | 54% | 2641 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,024 psi | 78% | 2848 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,075 psi | 63% | 2713 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,682 psi | 61% | 2700 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,713 psi | 64% | 2654 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,461 psi | 53% | 2513 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 49,240 psi | 76% | 2818 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 46,499 psi | 72% | 2831 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 41,307 psi | 64% | 2657 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,872 psi | 63% | 2717 fps | 97.3% |
| Somchem S355 | <<locked>> | 80% | 32,677 psi | 50% | 2546 fps | 95.3% |
| Somchem S365 | <<locked>> | 88% | 30,530 psi | 47% | 2579 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 47,210 psi | 73% | 2730 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,930 psi | 65% | 2654 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,362 psi | 57% | 2631 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,116 psi | 59% | 2635 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 30,951 psi | 48% | 2484 fps | 96.3% |
| Vihtavuori N160 | <<locked>> | 90% | 38,189 psi | 59% | 2697 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 43,091 psi | 66% | 2743 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 36,724 psi | 56% | 2621 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 92% | 39,943 psi | 61% | 2753 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 98% | 35,346 psi | 54% | 2723 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 33,765 psi | 52% | 2562 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 42,453 psi | 65% | 2789 fps | 99.4% |
| Winchester 760 | <<locked>> | 98% | 50,908 psi | 78% | 2982 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,841 psi | 60% | 2700 fps | 97.5% |
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 103 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 150gr | Frontier PH HPFB. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,156 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 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 150.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 150gr | Frontier PH HPFB 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.