Load Specifications
Bullet:.308 | 175gr | Barnes LRX BT
Bullet Manufacturer:Barnes
Bullet Weight:175 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 | 175gr | Barnes LRX 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 Alliant Reloder-17.
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% | 56,463 psi | 88% | 2720 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 54,940 psi | 86% | 2740 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,232 psi | 90% | 2812 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,346 psi | 85% | 2753 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,293 psi | 66% | 2648 fps | 96.9% |
| Accurate 4064 | <<locked>> | 90% | 54,984 psi | 86% | 2789 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,361 psi | 87% | 2884 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 55,579 psi | 87% | 2825 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 56,768 psi | 89% | 2828 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,723 psi | 86% | 2779 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,593 psi | 87% | 2746 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,608 psi | 87% | 2949 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 50,125 psi | 79% | 2805 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,971 psi | 89% | 2851 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 57,580 psi | 90% | 2874 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,565 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,375 psi | 85% | 2923 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,364 psi | 63% | 2680 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,368 psi | 71% | 2848 fps | 98.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,753 psi | 87% | 2848 fps | 99.9% |
| Bofors RP3 | <<locked>> | 92% | 57,696 psi | 90% | 2867 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 57,421 psi | 90% | 2841 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,347 psi | 88% | 2759 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 53,940 psi | 85% | 2805 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,318 psi | 88% | 2907 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 54,868 psi | 86% | 2828 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 96% | 54,592 psi | 86% | 2884 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 94% | 55,201 psi | 87% | 2844 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 86% | 56,173 psi | 88% | 2835 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,866 psi | 83% | 2815 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,057 psi | 88% | 2874 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,230 psi | 87% | 2920 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,636 psi | 56% | 1716 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,551 psi | 90% | 2838 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,420 psi | 88% | 2815 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,304 psi | 88% | 2812 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,028 psi | 88% | 2792 fps | 98.5% |
| IMR 4350 | <<locked>> | 98% | 54,563 psi | 86% | 2818 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,086 psi | 88% | 2822 fps | 98.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,043 psi | 88% | 2874 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 55,332 psi | 87% | 2851 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 54,723 psi | 86% | 2779 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,506 psi | 87% | 2799 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,245 psi | 87% | 2756 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,927 psi | 88% | 2802 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,201 psi | 87% | 2812 fps | 99.3% |
| Lovex S070 | <<locked>> | 98% | 56,173 psi | 88% | 2848 fps | 98.7% |
| Norma 201 | <<locked>> | 86% | 54,360 psi | 85% | 2772 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,100 psi | 86% | 2772 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,753 psi | 89% | 2861 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,027 psi | 86% | 2864 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 45,237 psi | 71% | 2802 fps | 96.4% |
| Norma URP | <<locked>> | 98% | 54,331 psi | 85% | 2871 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 90% | 57,638 psi | 90% | 2887 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 56,913 psi | 89% | 2923 fps | 99.3% |
| Ramshot TAC | <<locked>> | 84% | 54,824 psi | 86% | 2799 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,592 psi | 86% | 2815 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,419 psi | 87% | 2779 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,085 psi | 57% | 1755 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,508 psi | 90% | 2802 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,056 psi | 86% | 2812 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,462 psi | 85% | 2887 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,186 psi | 85% | 2923 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,303 psi | 87% | 2910 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 54,607 psi | 86% | 2936 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 84% | 54,940 psi | 86% | 2746 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 54,766 psi | 86% | 2769 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 57,290 psi | 90% | 2854 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 57,421 psi | 90% | 2841 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,201 psi | 87% | 2812 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,506 psi | 87% | 2799 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,927 psi | 88% | 2802 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,173 psi | 88% | 2848 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,695 psi | 87% | 2867 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,101 psi | 89% | 2831 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,114 psi | 85% | 2799 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,898 psi | 88% | 2710 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,333 psi | 88% | 2710 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,666 psi | 87% | 2769 fps | 98.4% |
| Somchem S321 | <<locked>> | 82% | 55,985 psi | 88% | 2808 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,259 psi | 87% | 2707 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,840 psi | 89% | 2822 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 57,609 psi | 90% | 2851 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,431 psi | 82% | 2871 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,704 psi | 76% | 2756 fps | 96.7% |
| Vihtavuori N130 | <<locked>> | 82% | 55,492 psi | 87% | 2667 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,202 psi | 88% | 2694 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,752 psi | 86% | 2733 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,564 psi | 87% | 2749 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,506 psi | 87% | 2782 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,072 psi | 89% | 2867 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 55,245 psi | 87% | 2779 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,246 psi | 90% | 2795 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,101 psi | 88% | 2877 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,425 psi | 70% | 2753 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 57,348 psi | 90% | 2844 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,376 psi | 87% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 54,882 psi | 86% | 2887 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,984 psi | 56% | 2690 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,056 psi | 85% | 2805 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% | 49,850 psi | 78% | 2628 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,177 psi | 66% | 2552 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,719 psi | 78% | 2710 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 44,643 psi | 70% | 2592 fps | 95.4% |
| Accurate 3100 | <<locked>> | 96% | 36,579 psi | 57% | 2536 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 39,900 psi | 63% | 2552 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 31,386 psi | 49% | 2428 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 46,079 psi | 72% | 2674 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 39,117 psi | 61% | 2523 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,240 psi | 76% | 2677 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,762 psi | 76% | 2654 fps | 100% |
| Alliant Power Pro 2000-MR | 53.7 gr | 80% | 41,887 psi | 66% | 2707 fps | 98.7% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 46,847 psi | 73% | 2746 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,667 psi | 61% | 2543 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,698 psi | 65% | 2612 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,039 psi | 50% | 2451 fps | 95.3% |
| Alliant Reloder-17 | 52.9 gr | 80% | 33,373 psi | 52% | 2516 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,341 psi | 46% | 2408 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 92% | 34,026 psi | 53% | 2589 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,382 psi | 71% | 2677 fps | 99% |
| Bofors RP3 | <<locked>> | 80% | 38,319 psi | 60% | 2546 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 44,715 psi | 70% | 2628 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,792 psi | 78% | 2664 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,992 psi | 74% | 2697 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,359 psi | 82% | 2851 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 39,291 psi | 62% | 2556 fps | 97.2% |
| Hodgdon H414 | <<locked>> | 88% | 41,626 psi | 65% | 2654 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 88% | 45,527 psi | 71% | 2680 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 46,514 psi | 73% | 2684 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,383 psi | 43% | 2293 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,569 psi | 67% | 2654 fps | 99.7% |
| Hodgdon Superformance | 62.9 gr | 90% | 44,353 psi | 70% | 2730 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,411 psi | 41% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,599 psi | 70% | 2635 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 46,456 psi | 73% | 2671 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,089 psi | 64% | 2559 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,395 psi | 68% | 2575 fps | 96% |
| IMR 4350 | <<locked>> | 90% | 42,351 psi | 66% | 2608 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,930 psi | 64% | 2556 fps | 95.1% |
| IMR 4831 | <<locked>> | 84% | 32,750 psi | 51% | 2444 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 42,728 psi | 67% | 2641 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 48,240 psi | 76% | 2677 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,237 psi | 71% | 2648 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,919 psi | 72% | 2608 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 40,915 psi | 64% | 2559 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 35,665 psi | 56% | 2451 fps | 95.1% |
| Lovex S070 | <<locked>> | 88% | 40,959 psi | 64% | 2585 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 44,962 psi | 70% | 2621 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 45,266 psi | 71% | 2625 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,060 psi | 64% | 2598 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 48,022 psi | 75% | 2749 fps | 95.2% |
| Norma MRP | <<locked>> | 98% | 42,235 psi | 66% | 2740 fps | 95.5% |
| Norma URP | <<locked>> | 82% | 32,024 psi | 50% | 2438 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 40,611 psi | 64% | 2608 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 38,116 psi | 60% | 2589 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 48,037 psi | 75% | 2687 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,645 psi | 75% | 2707 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,982 psi | 81% | 2726 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,687 psi | 42% | 1565 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,853 psi | 84% | 2753 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,653 psi | 62% | 2539 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,164 psi | 69% | 2713 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,592 psi | 56% | 2582 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 33,591 psi | 53% | 2507 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 36,114 psi | 57% | 2572 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 48,646 psi | 76% | 2654 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,569 psi | 67% | 2572 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 36,013 psi | 56% | 2490 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 44,715 psi | 70% | 2628 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 82% | 35,665 psi | 56% | 2451 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,237 psi | 71% | 2648 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,915 psi | 64% | 2559 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 40,959 psi | 64% | 2585 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,188 psi | 58% | 2546 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,238 psi | 72% | 2661 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,498 psi | 70% | 2641 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,253 psi | 72% | 2569 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,537 psi | 60% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,016 psi | 63% | 2503 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 52,185 psi | 82% | 2756 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,934 psi | 72% | 2572 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,195 psi | 72% | 2661 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 36,927 psi | 58% | 2500 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 26,687 psi | 42% | 2333 fps | 96.5% |
| Somchem S385 | <<locked>> | 96% | 42,496 psi | 67% | 2644 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 52,199 psi | 82% | 2625 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,688 psi | 73% | 2562 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,337 psi | 66% | 2549 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,960 psi | 67% | 2562 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,070 psi | 55% | 2434 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 33,373 psi | 52% | 2441 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 48,269 psi | 76% | 2674 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,452 psi | 65% | 2556 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 32,750 psi | 51% | 2438 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 88% | 29,588 psi | 46% | 2425 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,038 psi | 49% | 2365 fps | 97% |
| Winchester 748 | <<locked>> | 80% | 48,153 psi | 75% | 2720 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 41,858 psi | 66% | 2657 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,601 psi | 43% | 2425 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,048 psi | 69% | 2644 fps | 99.7% |
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 | 175gr | Barnes LRX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,949 fps; across all powders the maximum-charge window runs from 1,716 fps to 2,949 fps. Accurate 3100 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 56–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Power Pro Varmint, Alliant Reloder-16 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, Alliant Reloder-17 rank at the top here: for .300 WSM with the .308 | 175gr | Barnes LRX 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.