Load Specifications
Load data in caliber .300 WSM with .308 | 240gr | Woodleigh PP SN bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 and Ramshot Grand.
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 2700 | <<locked>> | 84% | 54,520 psi | 85% | 2372 fps | 99.8% |
| Accurate 3100 | <<locked>> | 98% | 55,724 psi | 87% | 2464 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 56,971 psi | 89% | 2379 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,360 psi | 85% | 2448 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 54,723 psi | 86% | 2556 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 84% | 56,376 psi | 88% | 2411 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,853 psi | 86% | 2497 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 98% | 56,028 psi | 88% | 2549 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 43,758 psi | 69% | 2359 fps | 97.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,638 psi | 61% | 2329 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,537 psi | 90% | 2428 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,653 psi | 90% | 2451 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,926 psi | 86% | 2493 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,072 psi | 88% | 2507 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,302 psi | 85% | 2487 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,506 psi | 87% | 2546 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,275 psi | 88% | 2513 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,791 psi | 76% | 2480 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 56,637 psi | 89% | 2602 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 54,897 psi | 86% | 2470 fps | 96.5% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,346 psi | 85% | 2530 fps | 99.7% |
| Bofors RP3 | <<locked>> | 82% | 55,013 psi | 86% | 2405 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,614 psi | 70% | 2421 fps | 98.1% |
| Bofors RP5 | <<locked>> | 98% | 55,506 psi | 87% | 2546 fps | 99.8% |
| Bofors RP7 | <<locked>> | 88% | 57,348 psi | 90% | 2444 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 44,904 psi | 70% | 2382 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 82% | 54,984 psi | 86% | 2421 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 57,261 psi | 90% | 2513 fps | 100% |
| Hodgdon H4350 | <<locked>> | 90% | 57,624 psi | 90% | 2484 fps | 99.9% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 55,303 psi | 87% | 2487 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,984 psi | 86% | 2480 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,376 psi | 87% | 2425 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,753 psi | 89% | 2448 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,616 psi | 75% | 2530 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 88% | 56,362 psi | 88% | 2536 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,956 psi | 58% | 1480 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,898 psi | 88% | 2395 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,390 psi | 87% | 2385 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 57,290 psi | 90% | 2421 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,143 psi | 86% | 2438 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,666 psi | 87% | 2425 fps | 100% |
| IMR 4831 | <<locked>> | 94% | 55,622 psi | 87% | 2454 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,725 psi | 90% | 2484 fps | 99% |
| IMR 7828 SSC | <<locked>> | 96% | 53,954 psi | 85% | 2536 fps | 99.1% |
| Lovex S062 | <<locked>> | 82% | 56,231 psi | 88% | 2385 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,014 psi | 88% | 2421 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 57,319 psi | 90% | 2461 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,864 psi | 78% | 2388 fps | 100% |
| Norma 203B | <<locked>> | 82% | 56,942 psi | 89% | 2438 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,028 psi | 88% | 2490 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 34,200 psi | 54% | 2264 fps | 97% |
| Norma MRP | <<locked>> | 96% | 55,172 psi | 86% | 2569 fps | 100% |
| Norma URP | <<locked>> | 90% | 56,405 psi | 88% | 2477 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,577 psi | 84% | 2539 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 90% | 55,201 psi | 87% | 2490 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,070 psi | 85% | 2520 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,710 psi | 59% | 1516 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,853 psi | 86% | 2411 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,608 psi | 87% | 2497 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 57,725 psi | 90% | 2513 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,985 psi | 88% | 2543 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,703 psi | 75% | 2526 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 55,143 psi | 86% | 2402 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,492 psi | 89% | 2470 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 96% | 57,290 psi | 90% | 2523 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 88% | 57,348 psi | 90% | 2444 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,014 psi | 88% | 2421 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,231 psi | 88% | 2385 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,319 psi | 90% | 2461 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,565 psi | 89% | 2454 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,608 psi | 87% | 2290 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,361 psi | 87% | 2382 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,811 psi | 89% | 2520 fps | 99.8% |
| Somchem S355 | <<locked>> | 84% | 54,926 psi | 86% | 2395 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,273 psi | 85% | 2421 fps | 98.4% |
| Somchem S365 | <<locked>> | 92% | 56,362 psi | 88% | 2477 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,375 psi | 85% | 2457 fps | 99.9% |
| Unknown powder | <<locked>> | 88% | 56,971 psi | 89% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,478 psi | 89% | 2379 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,217 psi | 90% | 2451 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,129 psi | 86% | 2457 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 82% | 57,682 psi | 90% | 2385 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 54,186 psi | 85% | 2451 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,317 psi | 87% | 2493 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,825 psi | 87% | 2572 fps | 99% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,836 psi | 80% | 2493 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,157 psi | 85% | 2395 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 57,261 psi | 90% | 2513 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,431 psi | 82% | 2589 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,709 psi | 87% | 2470 fps | 99.7% |
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 2700 | <<locked>> | 80% | 47,993 psi | 75% | 2280 fps | 99.3% |
| Accurate 3100 | <<locked>> | 80% | 30,647 psi | 48% | 2054 fps | 97.1% |
| Accurate 4064 | <<locked>> | 80% | 53,417 psi | 84% | 2336 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,423 psi | 65% | 2264 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 44,469 psi | 70% | 2398 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 50,024 psi | 78% | 2326 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 34,998 psi | 55% | 2162 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 86% | 37,826 psi | 59% | 2247 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 96% | 38,435 psi | 60% | 2257 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 92% | 30,226 psi | 47% | 2129 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,792 psi | 80% | 2346 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 54,027 psi | 85% | 2405 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,943 psi | 63% | 2270 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,672 psi | 72% | 2372 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 34,766 psi | 54% | 2156 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 82% | 32,880 psi | 52% | 2159 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,530 psi | 46% | 2080 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 26,034 psi | 41% | 2001 fps | 95.4% |
| Alliant Reloder-26 | 54 gr | 80% | 31,705 psi | 50% | 2192 fps | 98.8% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 51,706 psi | 81% | 2425 fps | 95.7% |
| Bofors RP15 | <<locked>> | 86% | 34,737 psi | 54% | 2198 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 51,488 psi | 81% | 2359 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 36,622 psi | 57% | 2274 fps | 95.8% |
| Bofors RP5 | <<locked>> | 82% | 32,880 psi | 52% | 2159 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 44,889 psi | 70% | 2267 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 94% | 37,072 psi | 58% | 2231 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 51,503 psi | 81% | 2375 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 46,804 psi | 73% | 2365 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 42,279 psi | 66% | 2254 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 90% | 40,263 psi | 63% | 2251 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 86% | 39,668 psi | 62% | 2238 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,666 psi | 59% | 2175 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,171 psi | 83% | 2405 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 32,648 psi | 51% | 2215 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 42,090 psi | 66% | 2326 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,543 psi | 43% | 1316 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,663 psi | 83% | 2356 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,298 psi | 77% | 2306 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,979 psi | 75% | 2290 fps | 99.7% |
| IMR 4350 | <<locked>> | 80% | 40,524 psi | 64% | 2215 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,180 psi | 72% | 2287 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 36,129 psi | 57% | 2156 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 84% | 39,856 psi | 62% | 2208 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 86% | 38,696 psi | 61% | 2277 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 52,997 psi | 83% | 2346 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,743 psi | 69% | 2247 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 42,148 psi | 66% | 2241 fps | 99.1% |
| Lovex S071 | <<locked>> | 80% | 26,542 psi | 42% | 1952 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 53,374 psi | 84% | 2392 fps | 100% |
| Norma 204 | <<locked>> | 80% | 40,103 psi | 63% | 2244 fps | 97.2% |
| Norma 217 | <<locked>> | 96% | 30,269 psi | 47% | 2165 fps | 95.2% |
| Norma MRP | 52.4 gr | 80% | 31,879 psi | 50% | 2162 fps | 96.4% |
| Norma URP | <<locked>> | 80% | 41,017 psi | 64% | 2257 fps | 99.9% |
| Ramshot Grand | 56.8 gr | 84% | 37,434 psi | 59% | 2267 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 39,798 psi | 62% | 2254 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 84% | 32,474 psi | 51% | 2149 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,282 psi | 44% | 1352 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,459 psi | 81% | 2369 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,457 psi | 76% | 2405 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,133 psi | 64% | 2283 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,595 psi | 62% | 2297 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 31,618 psi | 50% | 2195 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 48,544 psi | 76% | 2316 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 38,783 psi | 61% | 2192 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 80% | 34,069 psi | 53% | 2146 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 44,889 psi | 70% | 2267 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,743 psi | 69% | 2247 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 52,997 psi | 83% | 2346 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,148 psi | 66% | 2241 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,690 psi | 78% | 2365 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,226 psi | 77% | 2215 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,743 psi | 67% | 2201 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 33,794 psi | 53% | 2139 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 48,457 psi | 76% | 2310 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 39,334 psi | 62% | 2185 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 37,724 psi | 59% | 2221 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,621 psi | 54% | 2133 fps | 96.8% |
| Unknown powder | <<locked>> | 80% | 43,903 psi | 69% | 2300 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,800 psi | 66% | 2185 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,150 psi | 69% | 2277 fps | 100% |
| Vihtavuori N165 | <<locked>> | 84% | 33,083 psi | 52% | 2096 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 54,157 psi | 85% | 2346 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 44,585 psi | 70% | 2313 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 33,141 psi | 52% | 2146 fps | 99.5% |
| Vihtavuori N560 | <<locked>> | 88% | 40,176 psi | 63% | 2320 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 92% | 38,798 psi | 61% | 2293 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,307 psi | 65% | 2221 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,804 psi | 73% | 2365 fps | 99.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,179 psi | 41% | 2093 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,258 psi | 54% | 2126 fps | 95.5% |
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 90 powders for .300 WSM loaded with the .308 | 240gr | Woodleigh PP SN. Alliant Reloder-26 delivers the highest muzzle velocity at 2,602 fps; across all powders the maximum-charge window runs from 1,480 fps to 2,602 fps. ADI AR 2217 gives the best case fill at 100 %, and 90 of the 90 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 240.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Norma MRP, Alliant Reloder-26, Ramshot Grand rank at the top here: for .300 WSM with the .308 | 240gr | Woodleigh PP SN 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.