Load Specifications
Bullet Manufacturer:Barnes
Bullet Weight:168 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 WSM load data
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:81.3 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:10.5
Load data in caliber .300 WSM with .308 | 168gr | Barnes TAC-TX BT 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, Hodgdon Superformance and ReloadSwiss RS 60.
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.
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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>> | 84% | 54,955 psi | 86% | 2756 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,753 psi | 89% | 2831 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,942 psi | 89% | 2825 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,493 psi | 90% | 2884 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 57,711 psi | 90% | 2841 fps | 97.6% |
| Accurate 4064 | <<locked>> | 92% | 56,884 psi | 89% | 2874 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 57,217 psi | 90% | 2966 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 88% | 57,638 psi | 90% | 2910 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 55,143 psi | 86% | 2858 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,768 psi | 89% | 2861 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,711 psi | 90% | 2831 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,012 psi | 85% | 2982 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,201 psi | 87% | 2881 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,796 psi | 87% | 2904 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,984 psi | 86% | 2972 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,405 psi | 88% | 3009 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,885 psi | 61% | 2697 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,758 psi | 69% | 2864 fps | 98.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,041 psi | 85% | 2874 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 55,782 psi | 87% | 2897 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,043 psi | 88% | 2871 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,969 psi | 86% | 2795 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,101 psi | 88% | 2890 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,462 psi | 85% | 2940 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 84% | 56,550 psi | 89% | 2841 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,826 psi | 89% | 2910 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 54,331 psi | 85% | 2930 fps | 98% |
| Hodgdon H4350 | <<locked>> | 98% | 55,114 psi | 86% | 2894 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 86% | 54,810 psi | 86% | 2871 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,908 psi | 80% | 2838 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,201 psi | 85% | 2904 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,624 psi | 90% | 3009 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,375 psi | 55% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,839 psi | 86% | 2854 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 56,710 psi | 89% | 2877 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,232 psi | 90% | 2877 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 94% | 56,739 psi | 89% | 2854 fps | 98.2% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,405 psi | 88% | 2897 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,462 psi | 85% | 2848 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,834 psi | 75% | 2805 fps | 99.1% |
| IMR 4895 | <<locked>> | 90% | 57,276 psi | 90% | 2936 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,768 psi | 89% | 2861 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,753 psi | 89% | 2844 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,493 psi | 90% | 2884 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 57,145 psi | 90% | 2838 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 54,302 psi | 85% | 2835 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 57,116 psi | 90% | 2890 fps | 99.2% |
| Lovex S070 | <<locked>> | 98% | 54,621 psi | 86% | 2874 fps | 98.1% |
| Norma 201 | <<locked>> | 88% | 56,159 psi | 88% | 2851 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,855 psi | 89% | 2854 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,998 psi | 86% | 2890 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 57,305 psi | 90% | 2949 fps | 96.7% |
| Norma URPᴾ | <<locked>> | 100% | 56,144 psi | 88% | 2949 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 90% | 55,753 psi | 87% | 2917 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,143 psi | 86% | 2949 fps | 98.8% |
| Ramshot TAC | <<locked>> | 86% | 57,029 psi | 89% | 2884 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,768 psi | 89% | 2900 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,725 psi | 90% | 2864 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,781 psi | 56% | 1788 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,941 psi | 88% | 2838 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 57,232 psi | 90% | 2894 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,347 psi | 88% | 2972 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,927 psi | 88% | 3005 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 57,000 psi | 89% | 2989 fps | 99.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,681 psi | 89% | 3018 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 86% | 56,782 psi | 89% | 2828 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,550 psi | 89% | 2848 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,651 psi | 87% | 2887 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 56,043 psi | 88% | 2871 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 57,116 psi | 90% | 2890 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,493 psi | 90% | 2884 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,302 psi | 85% | 2835 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,621 psi | 86% | 2874 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 53,809 psi | 84% | 2897 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,376 psi | 87% | 2858 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,043 psi | 88% | 2884 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,418 psi | 85% | 2746 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,723 psi | 86% | 2743 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 53,969 psi | 85% | 2792 fps | 97.8% |
| Somchem S321 | <<locked>> | 82% | 54,331 psi | 85% | 2841 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 57,072 psi | 89% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,129 psi | 86% | 2851 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 55,840 psi | 88% | 2884 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,604 psi | 79% | 2900 fps | 100% |
| Unknown powder | <<locked>> | 98% | 57,276 psi | 90% | 2959 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 84% | 56,289 psi | 88% | 2736 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,522 psi | 90% | 2769 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,550 psi | 89% | 2815 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,724 psi | 89% | 2825 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 57,188 psi | 90% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,186 psi | 85% | 2877 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 56,434 psi | 88% | 2867 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,347 psi | 88% | 2851 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,505 psi | 85% | 2927 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,743 psi | 67% | 2776 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,738 psi | 87% | 2877 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,172 psi | 85% | 2867 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,331 psi | 85% | 2930 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,780 psi | 55% | 2697 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,682 psi | 90% | 2913 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% | 48,486 psi | 76% | 2664 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,084 psi | 83% | 2779 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,741 psi | 64% | 2585 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,601 psi | 73% | 2726 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 47,152 psi | 74% | 2674 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 38,566 psi | 60% | 2579 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,416 psi | 51% | 2503 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 44,730 psi | 70% | 2700 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 38,000 psi | 60% | 2549 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,891 psi | 73% | 2710 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,166 psi | 74% | 2690 fps | 100% |
| Alliant Power Pro 2000-MR | 53.9 gr | 80% | 40,756 psi | 64% | 2733 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,449 psi | 59% | 2569 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,408 psi | 63% | 2635 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,040 psi | 52% | 2520 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,256 psi | 51% | 2530 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,255 psi | 47% | 2474 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 94% | 35,186 psi | 55% | 2661 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,947 psi | 69% | 2703 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 37,014 psi | 58% | 2569 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 46,137 psi | 72% | 2703 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,573 psi | 76% | 2697 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,745 psi | 72% | 2730 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,647 psi | 79% | 2877 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 80% | 49,864 psi | 78% | 2743 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,014 psi | 60% | 2575 fps | 96.3% |
| Hodgdon H414 | <<locked>> | 88% | 44,106 psi | 69% | 2753 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 94% | 48,573 psi | 76% | 2785 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 45,179 psi | 71% | 2710 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,239 psi | 44% | 2362 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,783 psi | 61% | 2631 fps | 99% |
| Hodgdon Superformance | 64.5 gr | 92% | 46,253 psi | 72% | 2815 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,194 psi | 41% | 1558 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,059 psi | 63% | 2598 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 41,118 psi | 64% | 2638 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,246 psi | 58% | 2526 fps | 97.5% |
| IMR 4166 Enduron | <<locked>> | 84% | 41,829 psi | 66% | 2592 fps | 95% |
| IMR 4350 | <<locked>> | 94% | 46,528 psi | 73% | 2733 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,453 psi | 67% | 2635 fps | 95% |
| IMR 4831 | <<locked>> | 88% | 32,547 psi | 51% | 2487 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 41,423 psi | 65% | 2664 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 46,891 psi | 73% | 2710 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 53,113 psi | 83% | 2792 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,729 psi | 69% | 2677 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,759 psi | 70% | 2638 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 39,668 psi | 62% | 2585 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 39,291 psi | 62% | 2579 fps | 95.8% |
| Lovex S070 | <<locked>> | 90% | 42,351 psi | 66% | 2657 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 43,671 psi | 68% | 2651 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 43,961 psi | 69% | 2657 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,755 psi | 62% | 2621 fps | 98.5% |
| Norma 204 | <<locked>> | 96% | 49,951 psi | 78% | 2831 fps | 95.1% |
| Norma URP | <<locked>> | 84% | 32,967 psi | 52% | 2510 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 39,421 psi | 62% | 2635 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 39,334 psi | 62% | 2661 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 46,673 psi | 73% | 2713 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,238 psi | 72% | 2733 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,618 psi | 79% | 2759 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,643 psi | 42% | 1601 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,663 psi | 83% | 2792 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,060 psi | 64% | 2615 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,583 psi | 67% | 2736 fps | 98.6% |
| ReloadSwiss RS 60 | 53 gr | 80% | 34,432 psi | 54% | 2602 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,795 psi | 55% | 2582 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,507 psi | 59% | 2651 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 47,340 psi | 74% | 2687 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,568 psi | 65% | 2602 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 34,751 psi | 54% | 2513 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 90% | 46,137 psi | 72% | 2703 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,291 psi | 62% | 2579 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,729 psi | 69% | 2677 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,668 psi | 62% | 2585 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 42,351 psi | 66% | 2657 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,926 psi | 56% | 2566 fps | 97.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,049 psi | 71% | 2690 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,192 psi | 68% | 2667 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,020 psi | 71% | 2602 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,420 psi | 59% | 2470 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,179 psi | 69% | 2631 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 50,633 psi | 79% | 2785 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,686 psi | 70% | 2605 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,744 psi | 70% | 2684 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 35,737 psi | 56% | 2523 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 25,744 psi | 40% | 2343 fps | 95.2% |
| Unknown powder | <<locked>> | 84% | 36,027 psi | 56% | 2572 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 50,024 psi | 78% | 2651 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,598 psi | 67% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,988 psi | 64% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,176 psi | 65% | 2585 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,385 psi | 48% | 2372 fps | 97.6% |
| Vihtavuori N160 | <<locked>> | 82% | 33,634 psi | 53% | 2490 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 49,255 psi | 77% | 2759 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,741 psi | 64% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 34,127 psi | 53% | 2533 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 92% | 32,489 psi | 51% | 2549 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,081 psi | 47% | 2379 fps | 96.1% |
| Winchester 748 | <<locked>> | 80% | 50,401 psi | 79% | 2812 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 44,106 psi | 69% | 2753 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,543 psi | 45% | 2493 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,447 psi | 84% | 2854 fps | 100% |
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 WSM loaded with the .308 | 168gr | Barnes TAC-TX BT. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,018 fps; across all powders the maximum-charge window runs from 1,749 fps to 3,018 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 (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.308" calls for a 1:10.5 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 Power Pro 2000-MR, Hodgdon Superformance, ReloadSwiss RS 60 rank at the top here: for .300 WSM with the .308 | 168gr | Barnes TAC-TX BT 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.