Load Specifications
Bullet:.308 | 142gr | IBEX TRD
Bullet Manufacturer:IBEX
Bullet Weight:142 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:1:12.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 142gr | IBEX TRD bullet and 100 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% | 58,465 psi | 90% | 2989 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 57,377 psi | 88% | 3018 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 57,783 psi | 89% | 3022 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,288 psi | 85% | 3028 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 57,276 psi | 88% | 3061 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 52,286 psi | 80% | 3061 fps | 98% |
| Accurate LT-30 | <<locked>> | 82% | 56,811 psi | 87% | 2923 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 57,217 psi | 88% | 2949 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 57,246 psi | 88% | 3081 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 96% | 57,740 psi | 89% | 3068 fps | 99.1% |
| ADI AR 2219 | <<locked>> | 82% | 58,363 psi | 90% | 3058 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,304 psi | 87% | 3035 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 56,463 psi | 87% | 3018 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 57,928 psi | 89% | 3146 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 56,550 psi | 87% | 3192 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 57,812 psi | 89% | 3097 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 58,175 psi | 89% | 2999 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 58,494 psi | 90% | 3120 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,372 psi | 77% | 3054 fps | 97.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 58,204 psi | 90% | 3215 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,086 psi | 86% | 2917 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 56,594 psi | 87% | 3087 fps | 98.8% |
| Bofors RP3 | <<locked>> | 94% | 55,100 psi | 85% | 3064 fps | 99.7% |
| Bofors RP7ᴾ | <<locked>> | 100% | 58,784 psi | 90% | 3064 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 58,276 psi | 90% | 3018 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,709 psi | 86% | 3068 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 57,072 psi | 88% | 3163 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 84% | 56,840 psi | 87% | 3035 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 57,957 psi | 89% | 3061 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 56,376 psi | 87% | 3071 fps | 98.2% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,984 psi | 85% | 3104 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 90% | 57,740 psi | 89% | 3094 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,760 psi | 72% | 2933 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,507 psi | 87% | 3123 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,462 psi | 55% | 1867 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 58,740 psi | 90% | 3091 fps | 99.8% |
| IMR 3031 | <<locked>> | 90% | 57,058 psi | 88% | 3081 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,363 psi | 88% | 3054 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 92% | 58,059 psi | 89% | 3031 fps | 96.3% |
| IMR 4198 | <<locked>> | 84% | 57,479 psi | 88% | 2949 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 56,985 psi | 88% | 3045 fps | 96% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,443 psi | 76% | 2995 fps | 97.6% |
| IMR 4895 | <<locked>> | 92% | 56,463 psi | 87% | 3104 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 88% | 56,304 psi | 87% | 3035 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 57,392 psi | 88% | 3028 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 57,217 psi | 88% | 3064 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,884 psi | 88% | 3002 fps | 99.4% |
| Lovex S062 | <<locked>> | 94% | 57,522 psi | 88% | 3061 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,420 psi | 87% | 3041 fps | 97.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,911 psi | 83% | 3018 fps | 95.8% |
| Norma 201 | <<locked>> | 90% | 56,434 psi | 87% | 3031 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 56,478 psi | 87% | 3035 fps | 100% |
| Norma 203B | <<locked>> | 94% | 57,624 psi | 89% | 3107 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 51,155 psi | 79% | 3041 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 94% | 57,928 psi | 89% | 3130 fps | 99.5% |
| Ramshot TAC | <<locked>> | 88% | 56,913 psi | 88% | 3045 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,941 psi | 86% | 3064 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 86% | 57,522 psi | 88% | 3031 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,955 psi | 55% | 1909 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,782 psi | 86% | 3015 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 56,521 psi | 87% | 3045 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 58,581 psi | 90% | 3189 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 58,291 psi | 90% | 3228 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,416 psi | 79% | 3074 fps | 97.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,779 psi | 80% | 3087 fps | 97% |
| Rottweil R 901 | <<locked>> | 88% | 57,928 psi | 89% | 3022 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,884 psi | 88% | 3028 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 58,479 psi | 90% | 3104 fps | 99.8% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 58,784 psi | 90% | 3064 fps | 95.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,420 psi | 87% | 3041 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 90% | 57,217 psi | 88% | 3064 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 57,522 psi | 88% | 3061 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,911 psi | 83% | 3018 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,709 psi | 86% | 2986 fps | 99.7% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 58,537 psi | 90% | 3064 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,970 psi | 86% | 3107 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 58,610 psi | 90% | 3015 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,376 psi | 85% | 3022 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,564 psi | 85% | 3048 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 57,812 psi | 89% | 2969 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 57,595 psi | 89% | 2963 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 57,159 psi | 88% | 2992 fps | 96.1% |
| Somchem S321 | <<locked>> | 86% | 57,725 psi | 89% | 3071 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 57,232 psi | 88% | 2969 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 57,928 psi | 89% | 3064 fps | 99.5% |
| Somchem S355 | <<locked>> | 98% | 58,813 psi | 90% | 3104 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,876 psi | 71% | 2989 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 86% | 57,551 psi | 89% | 2936 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,653 psi | 89% | 2953 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,912 psi | 86% | 2995 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 56,855 psi | 87% | 3009 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,608 psi | 87% | 3028 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,693 psi | 83% | 3041 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 88% | 57,014 psi | 88% | 3035 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 94% | 58,711 psi | 90% | 3054 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,924 psi | 81% | 3048 fps | 97.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,621 psi | 84% | 3022 fps | 99.6% |
| Winchester 748 | <<locked>> | 88% | 56,405 psi | 87% | 3084 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 54,984 psi | 85% | 3104 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 92% | 58,769 psi | 90% | 3110 fps | 99.8% |
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% | 46,383 psi | 71% | 2805 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,401 psi | 78% | 2910 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,248 psi | 62% | 2733 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,658 psi | 70% | 2867 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 37,942 psi | 58% | 2717 fps | 99.4% |
| Accurate 4350 | <<locked>> | 92% | 40,132 psi | 62% | 2828 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 53,476 psi | 82% | 2874 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,838 psi | 83% | 2897 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 42,438 psi | 65% | 2808 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 82% | 38,493 psi | 59% | 2703 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 54,578 psi | 84% | 3002 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,237 psi | 68% | 2822 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 80% | 43,830 psi | 67% | 2828 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,198 psi | 79% | 3035 fps | 99.2% |
| Alliant Power Pro 2000-MR | 53.1 gr | 82% | 40,915 psi | 63% | 2874 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,795 psi | 55% | 2674 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,779 psi | 80% | 2904 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,435 psi | 59% | 2736 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 94% | 42,293 psi | 65% | 2881 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 84% | 35,157 psi | 54% | 2733 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,779 psi | 81% | 2867 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,191 psi | 63% | 2799 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 35,607 psi | 55% | 2680 fps | 96.3% |
| Bofors RP7 | <<locked>> | 98% | 55,390 psi | 85% | 3012 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,224 psi | 71% | 2815 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,033 psi | 66% | 2841 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,586 psi | 72% | 2976 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 80% | 50,227 psi | 77% | 2933 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,952 psi | 78% | 2953 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 43,874 psi | 67% | 2844 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 98% | 51,430 psi | 79% | 3041 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 42,772 psi | 66% | 2822 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 34,809 psi | 54% | 2667 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,609 psi | 59% | 2782 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,527 psi | 41% | 1670 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,988 psi | 63% | 2769 fps | 97.3% |
| IMR 3031 | <<locked>> | 80% | 41,989 psi | 65% | 2831 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,072 psi | 59% | 2684 fps | 95.4% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,491 psi | 84% | 2972 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 51,314 psi | 79% | 2861 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 53,737 psi | 83% | 2989 fps | 95.3% |
| IMR 4831 | <<locked>> | 94% | 40,901 psi | 63% | 2825 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 39,247 psi | 60% | 2769 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 80% | 44,237 psi | 68% | 2822 fps | 98.6% |
| Lovex D073.5 | <<locked>> | 80% | 50,488 psi | 78% | 2920 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 41,611 psi | 64% | 2799 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 42,685 psi | 66% | 2746 fps | 97.3% |
| Lovex S062 | <<locked>> | 80% | 38,276 psi | 59% | 2700 fps | 97.4% |
| Lovex S065 | <<locked>> | 94% | 47,587 psi | 73% | 2887 fps | 95.5% |
| Lovex S070 | <<locked>> | 98% | 50,821 psi | 78% | 2966 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 42,206 psi | 65% | 2772 fps | 98.3% |
| Norma 202 | <<locked>> | 80% | 41,858 psi | 64% | 2782 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 37,840 psi | 58% | 2726 fps | 95.9% |
| Norma URP | <<locked>> | 94% | 42,583 psi | 66% | 2877 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 37,086 psi | 57% | 2730 fps | 95.3% |
| Ramshot TAC | <<locked>> | 82% | 46,992 psi | 72% | 2871 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,352 psi | 67% | 2835 fps | 97.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,776 psi | 74% | 2867 fps | 98.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,861 psi | 41% | 1709 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,472 psi | 76% | 2913 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 50,009 psi | 77% | 2933 fps | 95.3% |
| ReloadSwiss RS 52 | 50.2 gr | 80% | 39,566 psi | 61% | 2831 fps | 95.7% |
| ReloadSwiss RS 60 | 51 gr | 80% | 33,069 psi | 51% | 2690 fps | 96.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 42,395 psi | 65% | 2897 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 45,527 psi | 70% | 2959 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 46,354 psi | 71% | 2831 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 40,292 psi | 62% | 2723 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 33,736 psi | 52% | 2625 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 98% | 55,390 psi | 85% | 3012 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 47,587 psi | 73% | 2887 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,611 psi | 64% | 2799 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 38,276 psi | 59% | 2700 fps | 97.4% |
| Shooters World SW4350 | <<locked>> | 98% | 50,821 psi | 78% | 2966 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,127 psi | 80% | 2927 fps | 99.4% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 54,984 psi | 85% | 3012 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 36,448 psi | 56% | 2717 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,054 psi | 80% | 2920 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,801 psi | 66% | 2789 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,843 psi | 63% | 2772 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,221 psi | 66% | 2730 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,926 psi | 55% | 2589 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 53,635 psi | 83% | 2936 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 47,732 psi | 73% | 2904 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 43,033 psi | 66% | 2736 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,018 psi | 65% | 2785 fps | 96.9% |
| Somchem S355 | <<locked>> | 80% | 34,635 psi | 53% | 2631 fps | 95.3% |
| Somchem S365 | <<locked>> | 88% | 32,184 psi | 50% | 2657 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 48,573 psi | 75% | 2805 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,236 psi | 67% | 2726 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,131 psi | 60% | 2717 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,610 psi | 61% | 2710 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 32,735 psi | 50% | 2566 fps | 96.2% |
| Vihtavuori N160 | <<locked>> | 92% | 41,858 psi | 64% | 2822 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 44,251 psi | 68% | 2815 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 80% | 38,363 psi | 59% | 2700 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 41,292 psi | 64% | 2825 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 35,143 psi | 54% | 2631 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 43,584 psi | 67% | 2861 fps | 99.2% |
| Winchester 760 | <<locked>> | 98% | 51,721 psi | 80% | 3045 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,306 psi | 62% | 2776 fps | 97.2% |
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 100 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 142gr | IBEX TRD. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,228 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,228 fps. Accurate 4350 gives the best case fill at 100 %, and 100 of the 100 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 142.0 gr projectile in 0.308" calls for a 1:12.0 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 | 142gr | IBEX TRD 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.