Load Specifications
Bullet:.308 | 165gr | Hornady CX
Bullet Manufacturer:Hornady
Bullet Weight:165 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:1:11.0
Load data in caliber .300 WSM with .308 | 165gr | Hornady CX bullet and 100 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 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% | 54,549 psi | 85% | 2779 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,594 psi | 89% | 2854 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,376 psi | 88% | 2844 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,187 psi | 86% | 2871 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,347 psi | 88% | 2858 fps | 97.3% |
| Accurate 4064 | <<locked>> | 92% | 56,565 psi | 89% | 2897 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 56,768 psi | 89% | 2986 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 88% | 57,406 psi | 90% | 2936 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 54,955 psi | 86% | 2881 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,347 psi | 88% | 2884 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,261 psi | 90% | 2854 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,421 psi | 90% | 3061 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,926 psi | 86% | 2904 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,580 psi | 90% | 2828 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,579 psi | 87% | 2927 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,607 psi | 86% | 2992 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,970 psi | 88% | 3031 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,798 psi | 61% | 2720 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,294 psi | 68% | 2877 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,609 psi | 90% | 2956 fps | 99.8% |
| Bofors RP3 | <<locked>> | 92% | 55,477 psi | 87% | 2920 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,753 psi | 87% | 2890 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,592 psi | 86% | 2818 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,840 psi | 88% | 2917 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,186 psi | 85% | 2963 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 57,029 psi | 89% | 2874 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,507 psi | 89% | 2936 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 98% | 56,188 psi | 88% | 2986 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 96% | 57,058 psi | 89% | 2949 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 86% | 54,360 psi | 85% | 2894 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,807 psi | 80% | 2864 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 57,624 psi | 90% | 2979 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,377 psi | 90% | 3031 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,375 psi | 55% | 1768 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,753 psi | 87% | 2897 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,447 psi | 85% | 2877 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,520 psi | 85% | 2867 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,346 psi | 85% | 2844 fps | 97.7% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,985 psi | 88% | 2917 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,215 psi | 85% | 2871 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,606 psi | 84% | 2923 fps | 99.6% |
| IMR 4895 | <<locked>> | 90% | 57,000 psi | 89% | 2959 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,347 psi | 88% | 2884 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,550 psi | 89% | 2867 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,159 psi | 90% | 2907 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,971 psi | 89% | 2861 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 57,450 psi | 90% | 2907 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,768 psi | 89% | 2913 fps | 99.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 57,682 psi | 90% | 2946 fps | 98.5% |
| Norma 201 | <<locked>> | 88% | 55,970 psi | 88% | 2877 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,637 psi | 89% | 2881 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,752 psi | 86% | 2917 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 56,811 psi | 89% | 2969 fps | 96.5% |
| Norma URPᴾ | <<locked>> | 100% | 55,695 psi | 87% | 2972 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 90% | 55,390 psi | 87% | 2940 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,679 psi | 86% | 2969 fps | 98.7% |
| Ramshot TAC | <<locked>> | 86% | 56,768 psi | 89% | 2907 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,507 psi | 89% | 2927 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,522 psi | 90% | 2890 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,781 psi | 56% | 1808 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,825 psi | 87% | 2864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 56,898 psi | 89% | 2917 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,057 psi | 88% | 2995 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,550 psi | 87% | 3028 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,768 psi | 89% | 3012 fps | 99.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,492 psi | 89% | 3045 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 86% | 56,666 psi | 89% | 2854 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,347 psi | 88% | 2874 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,332 psi | 87% | 2910 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,753 psi | 87% | 2890 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,768 psi | 89% | 2913 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,159 psi | 90% | 2907 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,450 psi | 90% | 2907 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 57,682 psi | 90% | 2946 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,435 psi | 90% | 2976 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,071 psi | 86% | 2884 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,811 psi | 87% | 2907 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,493 psi | 90% | 2812 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,592 psi | 86% | 2769 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,348 psi | 90% | 2867 fps | 98.2% |
| Somchem S321 | <<locked>> | 84% | 57,725 psi | 90% | 2917 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,884 psi | 89% | 2812 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,795 psi | 86% | 2874 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 55,506 psi | 87% | 2907 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,169 psi | 79% | 2923 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 57,174 psi | 90% | 2776 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,346 psi | 85% | 2753 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,057 psi | 88% | 2835 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 57,116 psi | 90% | 2854 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,145 psi | 90% | 2884 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,969 psi | 86% | 2920 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 86% | 56,913 psi | 89% | 2884 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,274 psi | 87% | 2851 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 57,435 psi | 90% | 2976 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,380 psi | 66% | 2795 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,303 psi | 87% | 2897 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 57,072 psi | 89% | 2933 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,492 psi | 89% | 2992 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,490 psi | 54% | 2710 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,695 psi | 87% | 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% | 48,196 psi | 76% | 2687 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 52,692 psi | 83% | 2802 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,408 psi | 63% | 2605 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,979 psi | 75% | 2762 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,151 psi | 72% | 2687 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 38,247 psi | 60% | 2598 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,519 psi | 54% | 2575 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 44,454 psi | 70% | 2720 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 37,753 psi | 59% | 2569 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,615 psi | 73% | 2730 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 46,818 psi | 73% | 2713 fps | 100% |
| Alliant Power Pro 2000-MR | 54.3 gr | 80% | 40,408 psi | 63% | 2749 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,362 psi | 59% | 2589 fps | 98.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,143 psi | 85% | 2782 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,089 psi | 63% | 2654 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,027 psi | 55% | 2598 fps | 95.9% |
| Alliant Reloder-17 | 53.5 gr | 80% | 32,140 psi | 50% | 2549 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,081 psi | 47% | 2490 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,507 psi | 59% | 2746 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,801 psi | 69% | 2726 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 36,709 psi | 58% | 2585 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 45,977 psi | 72% | 2726 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,269 psi | 76% | 2720 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,324 psi | 71% | 2749 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,401 psi | 79% | 2900 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 80% | 53,330 psi | 84% | 2825 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,695 psi | 59% | 2592 fps | 96.1% |
| Hodgdon H414 | <<locked>> | 90% | 42,946 psi | 67% | 2753 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 92% | 50,067 psi | 78% | 2838 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 44,846 psi | 70% | 2733 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,008 psi | 47% | 2434 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,988 psi | 64% | 2703 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 92% | 45,890 psi | 72% | 2831 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,266 psi | 41% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,047 psi | 67% | 2680 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 44,614 psi | 70% | 2726 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,639 psi | 62% | 2602 fps | 98% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,005 psi | 71% | 2680 fps | 95.7% |
| IMR 4350 | <<locked>> | 94% | 46,267 psi | 73% | 2753 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 44,947 psi | 70% | 2707 fps | 95.6% |
| IMR 4831 | <<locked>> | 86% | 33,634 psi | 53% | 2539 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 41,089 psi | 64% | 2684 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 80% | 46,615 psi | 73% | 2730 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 52,634 psi | 82% | 2815 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,352 psi | 68% | 2697 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,483 psi | 70% | 2657 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 39,392 psi | 62% | 2602 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 38,986 psi | 61% | 2595 fps | 95.5% |
| Lovex S070 | <<locked>> | 90% | 41,945 psi | 66% | 2677 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 43,395 psi | 68% | 2671 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 43,859 psi | 69% | 2680 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,479 psi | 62% | 2641 fps | 98.3% |
| Norma 204 | <<locked>> | 98% | 53,040 psi | 83% | 2910 fps | 95.7% |
| Norma URP | <<locked>> | 86% | 34,983 psi | 55% | 2582 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 39,059 psi | 61% | 2654 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 39,117 psi | 61% | 2680 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 46,543 psi | 73% | 2736 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,079 psi | 72% | 2756 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,212 psi | 79% | 2779 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,513 psi | 42% | 1614 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,286 psi | 82% | 2812 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,944 psi | 64% | 2635 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,438 psi | 67% | 2762 fps | 98.5% |
| ReloadSwiss RS 60 | 53.5 gr | 80% | 34,301 psi | 54% | 2621 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,403 psi | 54% | 2595 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,289 psi | 58% | 2667 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 47,065 psi | 74% | 2710 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,307 psi | 65% | 2621 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 34,505 psi | 54% | 2530 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 45,977 psi | 72% | 2726 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,986 psi | 61% | 2595 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,352 psi | 68% | 2697 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,392 psi | 62% | 2602 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 41,945 psi | 66% | 2677 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,810 psi | 56% | 2585 fps | 97.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,657 psi | 70% | 2707 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,062 psi | 67% | 2690 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,773 psi | 70% | 2625 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,202 psi | 58% | 2487 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,005 psi | 69% | 2651 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 50,473 psi | 79% | 2812 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,440 psi | 70% | 2628 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,570 psi | 70% | 2707 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 35,505 psi | 56% | 2539 fps | 97.8% |
| Somchem S365 | <<locked>> | 82% | 27,354 psi | 43% | 2415 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 50,633 psi | 79% | 2687 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,179 psi | 71% | 2618 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,727 psi | 64% | 2605 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,379 psi | 65% | 2612 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,663 psi | 53% | 2474 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 84% | 34,214 psi | 54% | 2530 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 46,543 psi | 73% | 2723 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,914 psi | 63% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,042 psi | 56% | 2585 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 92% | 32,300 psi | 51% | 2566 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,994 psi | 47% | 2398 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 46,441 psi | 73% | 2772 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 42,946 psi | 67% | 2753 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,255 psi | 47% | 2572 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,525 psi | 67% | 2694 fps | 99.3% |
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 | 165gr | Hornady CX. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,061 fps; across all powders the maximum-charge window runs from 1,768 fps to 3,061 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 54–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:11.0 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, Alliant Reloder-17 rank at the top here: for .300 WSM with the .308 | 165gr | Hornady CX 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.