Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:180 gr
Bullet Diameter:0.4515"
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
Load data in caliber .300 WSM with .4515 | 180gr | Sierra Tipped GameKing bullet and 105 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% | 55,695 psi | 87% | 2608 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,259 psi | 85% | 2638 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 57,508 psi | 90% | 2674 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 56,086 psi | 88% | 2700 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 57,087 psi | 89% | 2677 fps | 97.1% |
| Accurate 4064 | <<locked>> | 94% | 57,319 psi | 90% | 2720 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,287 psi | 84% | 2753 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 88% | 54,737 psi | 86% | 2707 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 55,695 psi | 87% | 2707 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 88% | 57,305 psi | 90% | 2707 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,549 psi | 85% | 2641 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,738 psi | 87% | 2762 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,259 psi | 85% | 2822 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,521 psi | 87% | 2726 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,376 psi | 87% | 2612 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,086 psi | 88% | 2746 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,430 psi | 81% | 2753 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,101 psi | 88% | 2844 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,695 psi | 57% | 2500 fps | 98% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,509 psi | 63% | 2641 fps | 96.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 57,087 psi | 89% | 2592 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,375 psi | 85% | 2723 fps | 99.6% |
| Bofors RP3 | <<locked>> | 94% | 55,999 psi | 88% | 2740 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 56,536 psi | 89% | 2713 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,883 psi | 88% | 2648 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 56,652 psi | 89% | 2740 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,882 psi | 86% | 2782 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 54,404 psi | 85% | 2654 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,535 psi | 87% | 2680 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 57,377 psi | 90% | 2756 fps | 99.5% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 56,333 psi | 88% | 2799 fps | 98% |
| Hodgdon H4350 | <<locked>> | 98% | 57,217 psi | 90% | 2759 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 88% | 55,245 psi | 87% | 2717 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,790 psi | 75% | 2638 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,244 psi | 85% | 2746 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 57,653 psi | 90% | 2838 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,389 psi | 55% | 1624 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,724 psi | 89% | 2720 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,172 psi | 86% | 2700 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,129 psi | 86% | 2687 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,463 psi | 87% | 2671 fps | 97.7% |
| IMR 4198 | <<locked>> | 82% | 55,492 psi | 87% | 2572 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,026 psi | 83% | 2684 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,853 psi | 86% | 2690 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,328 psi | 79% | 2690 fps | 99.2% |
| IMR 4895 | <<locked>> | 92% | 57,493 psi | 90% | 2776 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 57,305 psi | 90% | 2707 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,027 psi | 85% | 2648 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,273 psi | 85% | 2684 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,621 psi | 86% | 2641 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 54,824 psi | 86% | 2684 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 57,522 psi | 90% | 2733 fps | 99% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,911 psi | 86% | 2717 fps | 97.9% |
| Norma 201 | <<locked>> | 90% | 56,840 psi | 89% | 2700 fps | 100% |
| Norma 202 | <<locked>> | 90% | 57,406 psi | 90% | 2700 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,230 psi | 87% | 2733 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 52,489 psi | 82% | 2740 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 92% | 56,028 psi | 88% | 2762 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,430 psi | 81% | 2733 fps | 98% |
| Ramshot TAC | <<locked>> | 86% | 54,099 psi | 85% | 2677 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 88% | 57,421 psi | 90% | 2749 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,810 psi | 86% | 2664 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,679 psi | 56% | 1660 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,898 psi | 89% | 2690 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 57,551 psi | 90% | 2736 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 56,420 psi | 88% | 2812 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,753 psi | 87% | 2841 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,649 psi | 83% | 2772 fps | 99.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,040 psi | 83% | 2799 fps | 99% |
| Rottweil R 901 | <<locked>> | 86% | 54,592 psi | 86% | 2638 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 57,334 psi | 90% | 2697 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 55,854 psi | 88% | 2733 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 56,536 psi | 89% | 2713 fps | 97.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 57,522 psi | 90% | 2733 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,273 psi | 85% | 2684 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 54,824 psi | 86% | 2684 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,911 psi | 86% | 2717 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 56,782 psi | 89% | 2664 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 53,925 psi | 85% | 2740 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 56,318 psi | 88% | 2631 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,260 psi | 88% | 2710 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,492 psi | 89% | 2726 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,448 psi | 87% | 2598 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,201 psi | 87% | 2595 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,549 psi | 85% | 2641 fps | 97.5% |
| Somchem S321 | <<locked>> | 84% | 54,969 psi | 86% | 2694 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,665 psi | 86% | 2598 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,593 psi | 87% | 2700 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 56,217 psi | 88% | 2730 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,963 psi | 74% | 2694 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,230 psi | 87% | 2566 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,579 psi | 87% | 2585 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 57,058 psi | 89% | 2664 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,549 psi | 85% | 2638 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,331 psi | 85% | 2664 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,201 psi | 87% | 2740 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 54,302 psi | 85% | 2661 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 55,999 psi | 88% | 2680 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,099 psi | 85% | 2743 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,566 psi | 62% | 2572 fps | 97.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,825 psi | 87% | 2720 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 53,911 psi | 84% | 2703 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 56,608 psi | 89% | 2802 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,764 psi | 51% | 2484 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 90% | 56,376 psi | 88% | 2736 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% | 46,514 psi | 73% | 2484 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,676 psi | 79% | 2589 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,972 psi | 61% | 2408 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,774 psi | 72% | 2552 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,166 psi | 74% | 2526 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 36,840 psi | 58% | 2402 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 35,070 psi | 55% | 2431 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 42,714 psi | 67% | 2510 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 36,332 psi | 57% | 2369 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,730 psi | 70% | 2520 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 44,556 psi | 70% | 2507 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,257 psi | 82% | 2710 fps | 100% |
| Alliant Power Pro 2000-MR | 47.2 gr | 80% | 38,638 psi | 61% | 2533 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,853 psi | 56% | 2392 fps | 98.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,257 psi | 82% | 2572 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,508 psi | 60% | 2448 fps | 97.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 33,605 psi | 53% | 2392 fps | 95.1% |
| Alliant Reloder-17 | 46.5 gr | 80% | 30,893 psi | 48% | 2352 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 30,574 psi | 48% | 2346 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 37,768 psi | 59% | 2575 fps | 95.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,853 psi | 84% | 2552 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,814 psi | 66% | 2513 fps | 97.8% |
| Bofors RP3 | <<locked>> | 80% | 35,331 psi | 55% | 2392 fps | 98.2% |
| Bofors RP7 | <<locked>> | 92% | 46,804 psi | 73% | 2559 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,514 psi | 73% | 2507 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,337 psi | 68% | 2539 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,688 psi | 75% | 2674 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 80% | 51,010 psi | 80% | 2605 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,909 psi | 81% | 2631 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,318 psi | 57% | 2395 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 92% | 43,410 psi | 68% | 2589 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 94% | 50,488 psi | 79% | 2661 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 43,076 psi | 68% | 2523 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 28,892 psi | 45% | 2247 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,986 psi | 61% | 2493 fps | 99% |
| Hodgdon Superformance | <<locked>> | 94% | 46,528 psi | 73% | 2661 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,194 psi | 41% | 1447 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,234 psi | 65% | 2474 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 42,511 psi | 67% | 2516 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,130 psi | 60% | 2398 fps | 97.5% |
| IMR 4166 Enduron | <<locked>> | 82% | 43,163 psi | 68% | 2467 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 52,359 psi | 82% | 2530 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 46,862 psi | 73% | 2585 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 45,716 psi | 72% | 2543 fps | 95.6% |
| IMR 4831 | <<locked>> | 88% | 34,084 psi | 53% | 2392 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 39,407 psi | 62% | 2477 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 80% | 44,730 psi | 70% | 2520 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 50,430 psi | 79% | 2598 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,466 psi | 65% | 2490 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 42,975 psi | 67% | 2451 fps | 98.9% |
| Lovex S062 | <<locked>> | 80% | 38,000 psi | 60% | 2405 fps | 98.9% |
| Lovex S065 | <<locked>> | 88% | 39,943 psi | 63% | 2444 fps | 95.7% |
| Lovex S070 | <<locked>> | 92% | 42,801 psi | 67% | 2520 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 41,785 psi | 65% | 2467 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 42,134 psi | 66% | 2477 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,869 psi | 59% | 2438 fps | 97.9% |
| Norma URP | <<locked>> | 88% | 35,636 psi | 56% | 2434 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 37,304 psi | 58% | 2448 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 92% | 39,697 psi | 62% | 2520 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 44,701 psi | 70% | 2523 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,918 psi | 69% | 2539 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,327 psi | 76% | 2566 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,542 psi | 42% | 1483 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,256 psi | 79% | 2598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 41,829 psi | 66% | 2480 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,972 psi | 63% | 2539 fps | 97.9% |
| ReloadSwiss RS 60 | 46.5 gr | 80% | 32,924 psi | 52% | 2418 fps | 99% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 34,867 psi | 55% | 2444 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 37,913 psi | 59% | 2510 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 45,847 psi | 72% | 2507 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,842 psi | 62% | 2421 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 80% | 33,170 psi | 52% | 2336 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 92% | 46,804 psi | 73% | 2559 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 39,943 psi | 63% | 2444 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,466 psi | 65% | 2490 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,000 psi | 60% | 2405 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 92% | 42,801 psi | 67% | 2520 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,040 psi | 83% | 2615 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,098 psi | 53% | 2382 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,113 psi | 83% | 2592 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,728 psi | 67% | 2497 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,089 psi | 64% | 2480 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,381 psi | 68% | 2425 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,940 psi | 56% | 2300 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 44,643 psi | 70% | 2487 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 48,341 psi | 76% | 2595 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 42,815 psi | 67% | 2425 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,569 psi | 67% | 2497 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 34,098 psi | 53% | 2346 fps | 97.3% |
| Somchem S365 | <<locked>> | 82% | 26,252 psi | 41% | 2228 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 48,979 psi | 77% | 2484 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,613 psi | 68% | 2418 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,189 psi | 61% | 2408 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,755 psi | 62% | 2415 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,416 psi | 51% | 2287 fps | 98.1% |
| Vihtavuori N160 | <<locked>> | 86% | 34,940 psi | 55% | 2385 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 44,817 psi | 70% | 2516 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 38,392 psi | 60% | 2405 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 36,680 psi | 57% | 2438 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 94% | 32,547 psi | 51% | 2418 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,906 psi | 45% | 2215 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 44,266 psi | 69% | 2559 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 43,410 psi | 68% | 2589 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,661 psi | 48% | 2418 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,509 psi | 63% | 2484 fps | 98.9% |
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 105 powders for .300 WSM loaded with the .4515 | 180gr | Sierra Tipped GameKing. Alliant Reloder-17 delivers the highest muzzle velocity at 2,844 fps; across all powders the maximum-charge window runs from 1,624 fps to 2,844 fps. Accurate 4350 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. 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 .4515 | 180gr | Sierra Tipped GameKing 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.