Load Specifications
Bullet:.311 | 155gr | Frontier FBSP
Bullet Manufacturer:Frontier Bullets
Bullet Weight:155 gr
Bullet Diameter:0.311"
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:1:11.5
Load data in caliber .300 WSM with .311 | 155gr | Frontier FBSP bullet and 101 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Alliant Power Pro 2000-MR.
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>> | 86% | 57,551 psi | 90% | 2904 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,086 psi | 88% | 2933 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,391 psi | 88% | 2930 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 56,681 psi | 89% | 2986 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 56,927 psi | 89% | 2930 fps | 96.8% |
| Accurate 4064 | <<locked>> | 92% | 56,115 psi | 88% | 2976 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 56,101 psi | 88% | 3058 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 88% | 56,913 psi | 89% | 3012 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 57,638 psi | 90% | 3005 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 55,927 psi | 88% | 2963 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 56,492 psi | 89% | 2933 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 56,478 psi | 89% | 3133 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 57,653 psi | 90% | 3028 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,246 psi | 90% | 2910 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 54,781 psi | 86% | 2999 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,693 psi | 84% | 3058 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,143 psi | 86% | 3104 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,392 psi | 60% | 2776 fps | 98% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,960 psi | 67% | 2936 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 56,768 psi | 89% | 3025 fps | 99.6% |
| Bofors RP3 | <<locked>> | 92% | 54,911 psi | 86% | 2995 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,129 psi | 86% | 2959 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 57,522 psi | 90% | 2943 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,259 psi | 87% | 2989 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 57,334 psi | 90% | 3097 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 84% | 55,825 psi | 87% | 2946 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 55,869 psi | 88% | 3005 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 96% | 57,130 psi | 90% | 3081 fps | 97.8% |
| Hodgdon H4350ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 3035 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 88% | 57,537 psi | 90% | 3025 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,951 psi | 78% | 2933 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,724 psi | 89% | 3054 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 56,347 psi | 88% | 3091 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,360 psi | 55% | 1827 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 57,392 psi | 90% | 3005 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 55,463 psi | 87% | 2979 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 56,507 psi | 89% | 2979 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 94% | 56,014 psi | 88% | 2949 fps | 97.5% |
| IMR 4198 | <<locked>> | 82% | 57,043 psi | 89% | 2864 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,332 psi | 87% | 2982 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,058 psi | 89% | 2992 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,108 psi | 74% | 2894 fps | 98.4% |
| IMR 4895 | <<locked>> | 90% | 56,173 psi | 88% | 3031 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 55,927 psi | 88% | 2963 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 55,999 psi | 88% | 2943 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 56,681 psi | 89% | 2986 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,318 psi | 88% | 2936 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 57,000 psi | 89% | 2986 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,115 psi | 88% | 2982 fps | 98.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 57,159 psi | 90% | 3018 fps | 97.9% |
| Norma 201 | <<locked>> | 88% | 55,477 psi | 87% | 2953 fps | 100% |
| Norma 202 | <<locked>> | 88% | 55,999 psi | 88% | 2956 fps | 100% |
| Norma 203B | <<locked>> | 92% | 57,493 psi | 90% | 3038 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 54,998 psi | 86% | 3041 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 90% | 54,505 psi | 85% | 3009 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,809 psi | 84% | 3035 fps | 98% |
| Ramshot TAC | <<locked>> | 86% | 56,173 psi | 88% | 2976 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,840 psi | 88% | 2999 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 56,710 psi | 89% | 2963 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,766 psi | 56% | 1867 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,187 psi | 86% | 2940 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 56,173 psi | 88% | 2986 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,259 psi | 87% | 3068 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 54,781 psi | 86% | 3104 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 55,767 psi | 87% | 3081 fps | 99.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 55,521 psi | 87% | 3107 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 86% | 56,536 psi | 89% | 2936 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,130 psi | 88% | 2953 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 54,781 psi | 86% | 2986 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,129 psi | 86% | 2959 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,115 psi | 88% | 2982 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 56,681 psi | 89% | 2986 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,000 psi | 89% | 2986 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 57,159 psi | 90% | 3018 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 56,449 psi | 88% | 3048 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,592 psi | 86% | 2953 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,201 psi | 87% | 2979 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,261 psi | 90% | 2894 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 57,188 psi | 90% | 2887 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 56,884 psi | 89% | 2936 fps | 97.6% |
| Somchem S321 | <<locked>> | 84% | 57,246 psi | 90% | 2995 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,362 psi | 88% | 2887 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,172 psi | 85% | 2946 fps | 99.8% |
| Somchem S355 | <<locked>> | 94% | 54,998 psi | 86% | 2982 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,472 psi | 78% | 2992 fps | 100% |
| Unknown powder | <<locked>> | 98% | 56,173 psi | 88% | 3051 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 84% | 55,579 psi | 87% | 2841 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,536 psi | 89% | 2871 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 55,695 psi | 87% | 2917 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,738 psi | 87% | 2923 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 56,420 psi | 88% | 2963 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,811 psi | 89% | 3022 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 84% | 55,608 psi | 87% | 2969 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,550 psi | 87% | 2953 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,101 psi | 89% | 3074 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,945 psi | 66% | 2861 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 54,462 psi | 85% | 2966 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,942 psi | 89% | 3018 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 57,130 psi | 90% | 3081 fps | 97.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,360 psi | 54% | 2762 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,623 psi | 89% | 3009 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% | 47,863 psi | 75% | 2762 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 52,634 psi | 82% | 2884 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,524 psi | 64% | 2680 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,093 psi | 72% | 2822 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 49,908 psi | 78% | 2818 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 38,334 psi | 60% | 2671 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 37,043 psi | 58% | 2703 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 44,222 psi | 69% | 2792 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 37,637 psi | 59% | 2635 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,253 psi | 72% | 2802 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 46,441 psi | 73% | 2792 fps | 100% |
| Alliant Power Pro 2000-MR | 55.2 gr | 80% | 40,219 psi | 63% | 2815 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,072 psi | 58% | 2654 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,621 psi | 84% | 2861 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,914 psi | 63% | 2723 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 37,130 psi | 58% | 2717 fps | 95.9% |
| Alliant Reloder-17 | 54.3 gr | 80% | 32,039 psi | 50% | 2612 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,937 psi | 50% | 2605 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,289 psi | 58% | 2799 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,337 psi | 68% | 2789 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 36,666 psi | 57% | 2657 fps | 98% |
| Bofors RP7 | <<locked>> | 92% | 48,530 psi | 76% | 2844 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,979 psi | 75% | 2792 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,165 psi | 71% | 2825 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,588 psi | 78% | 2969 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 80% | 49,168 psi | 77% | 2844 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,637 psi | 59% | 2657 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 90% | 46,514 psi | 73% | 2897 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 96% | 50,923 psi | 80% | 2927 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 44,599 psi | 70% | 2805 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,879 psi | 50% | 2549 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,145 psi | 60% | 2717 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 94% | 48,704 psi | 76% | 2956 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,237 psi | 41% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,639 psi | 62% | 2687 fps | 98.2% |
| IMR 3031 | <<locked>> | 80% | 40,480 psi | 63% | 2733 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,782 psi | 58% | 2608 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 46,673 psi | 73% | 2785 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 53,708 psi | 84% | 2818 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 48,762 psi | 76% | 2871 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 47,326 psi | 74% | 2825 fps | 95.5% |
| IMR 4831 | <<locked>> | 92% | 36,506 psi | 57% | 2674 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 40,901 psi | 64% | 2753 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 46,253 psi | 72% | 2802 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 52,257 psi | 82% | 2887 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,134 psi | 68% | 2769 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 44,309 psi | 69% | 2726 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 39,392 psi | 62% | 2677 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 41,365 psi | 65% | 2717 fps | 95.5% |
| Lovex S070 | <<locked>> | 92% | 44,556 psi | 70% | 2799 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 43,163 psi | 68% | 2740 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 43,482 psi | 68% | 2753 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,305 psi | 62% | 2710 fps | 97.7% |
| Norma URP | <<locked>> | 88% | 37,130 psi | 58% | 2703 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 38,856 psi | 61% | 2720 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 92% | 41,524 psi | 65% | 2802 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 46,108 psi | 72% | 2802 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,600 psi | 71% | 2825 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,980 psi | 78% | 2851 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,687 psi | 42% | 1673 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,808 psi | 81% | 2887 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,279 psi | 68% | 2753 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,901 psi | 66% | 2825 fps | 97.8% |
| ReloadSwiss RS 60 | 54.3 gr | 80% | 34,084 psi | 53% | 2684 fps | 98.8% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 36,753 psi | 58% | 2720 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 39,436 psi | 62% | 2785 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 47,268 psi | 74% | 2792 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,147 psi | 64% | 2690 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 34,519 psi | 54% | 2598 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 48,530 psi | 76% | 2844 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,365 psi | 65% | 2717 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,134 psi | 68% | 2769 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 39,392 psi | 62% | 2677 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 92% | 44,556 psi | 70% | 2799 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,592 psi | 56% | 2651 fps | 96.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,338 psi | 69% | 2772 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,743 psi | 67% | 2759 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,686 psi | 70% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,159 psi | 58% | 2559 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 46,775 psi | 73% | 2772 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 49,951 psi | 78% | 2884 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,121 psi | 69% | 2697 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,106 psi | 69% | 2772 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 35,360 psi | 55% | 2605 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 27,412 psi | 43% | 2477 fps | 95.1% |
| Unknown powder | <<locked>> | 86% | 38,029 psi | 60% | 2710 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 49,400 psi | 77% | 2753 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,061 psi | 66% | 2644 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,640 psi | 64% | 2680 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,741 psi | 64% | 2677 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,153 psi | 47% | 2454 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 86% | 38,029 psi | 60% | 2684 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 48,776 psi | 76% | 2858 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,248 psi | 63% | 2694 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 35,940 psi | 56% | 2667 fps | 95% |
| Vihtavuori N555 | <<locked>> | 94% | 34,272 psi | 54% | 2684 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,966 psi | 50% | 2513 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 49,559 psi | 78% | 2907 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 46,514 psi | 73% | 2897 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 32,271 psi | 51% | 2694 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,620 psi | 82% | 2949 fps | 99.9% |
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 101 powders for .300 WSM loaded with the .311 | 155gr | Frontier FBSP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,133 fps; across all powders the maximum-charge window runs from 1,827 fps to 3,133 fps. Accurate 4350 gives the best case fill at 100 %, and 101 of the 101 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 155.0 gr projectile in 0.311" calls for a 1:11.5 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 Reloder-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for .300 WSM with the .311 | 155gr | Frontier FBSP 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.