Load Specifications
Load data in caliber 8.5 x 63 R with .338 | 225gr | Woodleigh PP SN bullet and 87 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, ReloadSwiss RS 60 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.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 47,311 psi | 86% | 2388 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 48,095 psi | 87% | 2448 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 48,254 psi | 88% | 2490 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 48,138 psi | 87% | 2487 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 46,456 psi | 84% | 2536 fps | 98.3% |
| ADI AR 2206H | <<locked>> | 86% | 49,255 psi | 89% | 2518 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 90% | 47,152 psi | 86% | 2469 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,617 psi | 88% | 2470 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 84% | 48,457 psi | 88% | 2462 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,080 psi | 87% | 2608 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 49,777 psi | 90% | 2539 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 88% | 47,210 psi | 86% | 2506 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 98% | 46,876 psi | 85% | 2553 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,676 psi | 90% | 2638 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,288 psi | 64% | 2352 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 48,602 psi | 88% | 2527 fps | 98.7% |
| Bofors RP3 | <<locked>> | 92% | 49,777 psi | 90% | 2549 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 47,587 psi | 86% | 2422 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 84% | 47,079 psi | 85% | 2490 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,588 psi | 88% | 2572 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 82% | 48,457 psi | 88% | 2466 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 47,979 psi | 87% | 2511 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 94% | 48,109 psi | 87% | 2565 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 86% | 49,705 psi | 90% | 2528 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,064 psi | 84% | 2494 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 48,457 psi | 88% | 2549 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,042 psi | 65% | 1543 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 46,992 psi | 85% | 2464 fps | 99.4% |
| IMR 3031 | <<locked>> | 88% | 47,703 psi | 87% | 2498 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 49,110 psi | 89% | 2484 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 92% | 48,965 psi | 89% | 2461 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,429 psi | 90% | 2490 fps | 95.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,221 psi | 78% | 2457 fps | 97.6% |
| IMR 4895 | <<locked>> | 88% | 48,312 psi | 88% | 2534 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 84% | 48,617 psi | 88% | 2478 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 86% | 48,254 psi | 88% | 2499 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 49,516 psi | 90% | 2457 fps | 99.5% |
| Lovex S062 | <<locked>> | 90% | 49,487 psi | 90% | 2503 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 48,356 psi | 88% | 2491 fps | 97.4% |
| Lovex S070 | <<locked>> | 98% | 48,979 psi | 89% | 2520 fps | 96.4% |
| Norma 201 | <<locked>> | 86% | 48,298 psi | 88% | 2473 fps | 99.9% |
| Norma 202 | <<locked>> | 86% | 48,631 psi | 88% | 2480 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,647 psi | 90% | 2545 fps | 99.5% |
| Norma URP | <<locked>> | 98% | 47,442 psi | 86% | 2541 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 90% | 49,429 psi | 90% | 2563 fps | 99.4% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,197 psi | 89% | 2583 fps | 97.1% |
| Ramshot TAC | <<locked>> | 84% | 48,617 psi | 88% | 2485 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 47,935 psi | 87% | 2505 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,255 psi | 89% | 2475 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,694 psi | 65% | 1580 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,457 psi | 88% | 2492 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 46,644 psi | 85% | 2558 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,574 psi | 90% | 2643 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 46,166 psi | 84% | 2564 fps | 98.1% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 46,804 psi | 85% | 2581 fps | 97.5% |
| Rottweil R 901 | <<locked>> | 84% | 49,414 psi | 90% | 2461 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,660 psi | 88% | 2471 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 49,661 psi | 90% | 2541 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,356 psi | 88% | 2491 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 48,254 psi | 88% | 2499 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,487 psi | 90% | 2503 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 48,950 psi | 89% | 2510 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 47,950 psi | 87% | 2547 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 46,659 psi | 85% | 2461 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 47,587 psi | 86% | 2490 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 47,094 psi | 85% | 2383 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 49,690 psi | 90% | 2423 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 48,399 psi | 88% | 2446 fps | 95.9% |
| Somchem S321 | <<locked>> | 82% | 49,284 psi | 89% | 2507 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 49,385 psi | 90% | 2426 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 49,545 psi | 90% | 2508 fps | 99.4% |
| Somchem S355 | <<locked>> | 92% | 47,413 psi | 86% | 2496 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,193 psi | 80% | 2542 fps | 99.9% |
| Unknown powder | <<locked>> | 96% | 47,616 psi | 86% | 2547 fps | 97.9% |
| Vihtavuori N130 | <<locked>> | 82% | 49,052 psi | 89% | 2384 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 49,676 psi | 90% | 2412 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 47,935 psi | 87% | 2438 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 48,283 psi | 88% | 2453 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 49,211 psi | 89% | 2483 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 47,964 psi | 87% | 2522 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 82% | 47,979 psi | 87% | 2477 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 88% | 47,805 psi | 87% | 2475 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 48,269 psi | 88% | 2567 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,565 psi | 68% | 2424 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 46,383 psi | 84% | 2479 fps | 99.5% |
| Winchester 748 | <<locked>> | 82% | 48,631 psi | 88% | 2525 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 48,109 psi | 87% | 2565 fps | 96.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 44,411 psi | 81% | 2346 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,043 psi | 67% | 2277 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,032 psi | 76% | 2392 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 35,027 psi | 64% | 2264 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 35,447 psi | 64% | 2336 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 40,944 psi | 74% | 2376 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 34,766 psi | 63% | 2237 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,975 psi | 78% | 2379 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 42,569 psi | 77% | 2380 fps | 100% |
| Alliant Power Pro 2000-MR | 52 gr | 80% | 36,782 psi | 67% | 2386 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,185 psi | 62% | 2259 fps | 97.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,796 psi | 67% | 2315 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,143 psi | 66% | 2353 fps | 95.7% |
| Alliant Reloder-17 | 52.5 gr | 82% | 31,328 psi | 57% | 2267 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 30,748 psi | 56% | 2255 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,813 psi | 72% | 2375 fps | 97% |
| Bofors RP3 | <<locked>> | 80% | 33,460 psi | 61% | 2258 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,817 psi | 81% | 2378 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,133 psi | 75% | 2392 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,339 psi | 82% | 2520 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 80% | 45,440 psi | 82% | 2422 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 36,898 psi | 67% | 2310 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 92% | 44,962 psi | 82% | 2511 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 41,307 psi | 75% | 2387 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,111 psi | 56% | 2212 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,867 psi | 63% | 2300 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,165 psi | 47% | 1378 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,782 psi | 67% | 2277 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 37,159 psi | 67% | 2327 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,011 psi | 62% | 2208 fps | 95.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 46,108 psi | 84% | 2414 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,572 psi | 85% | 2444 fps | 95.2% |
| IMR 4831 | <<locked>> | 94% | 35,099 psi | 64% | 2318 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 37,623 psi | 68% | 2343 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 80% | 42,975 psi | 78% | 2387 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 39,407 psi | 72% | 2356 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 41,278 psi | 75% | 2320 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 36,230 psi | 66% | 2273 fps | 98.4% |
| Lovex S065 | <<locked>> | 90% | 40,509 psi | 74% | 2356 fps | 95.4% |
| Lovex S070 | <<locked>> | 96% | 46,050 psi | 84% | 2473 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 40,103 psi | 73% | 2334 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 40,292 psi | 73% | 2346 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,187 psi | 66% | 2305 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 36,085 psi | 65% | 2346 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 35,375 psi | 64% | 2310 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 96% | 42,699 psi | 77% | 2478 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 42,757 psi | 78% | 2386 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,959 psi | 76% | 2404 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,224 psi | 84% | 2427 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,411 psi | 48% | 1410 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,482 psi | 77% | 2391 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,927 psi | 69% | 2398 fps | 97.1% |
| ReloadSwiss RS 60 | 51.2 gr | 80% | 31,227 psi | 57% | 2275 fps | 98.1% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 35,331 psi | 64% | 2358 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,988 psi | 74% | 2470 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 43,932 psi | 80% | 2376 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,159 psi | 69% | 2291 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 80% | 31,488 psi | 57% | 2207 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,509 psi | 74% | 2356 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,407 psi | 72% | 2356 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,230 psi | 66% | 2273 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 96% | 46,050 psi | 84% | 2464 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,460 psi | 59% | 2249 fps | 95.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,785 psi | 74% | 2359 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,262 psi | 71% | 2344 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,655 psi | 76% | 2297 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,360 psi | 62% | 2177 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 45,339 psi | 82% | 2399 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 46,151 psi | 84% | 2458 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,147 psi | 75% | 2301 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,596 psi | 74% | 2362 fps | 98.1% |
| Somchem S355 | <<locked>> | 80% | 32,561 psi | 59% | 2216 fps | 96.5% |
| Somchem S365 | <<locked>> | 84% | 26,629 psi | 48% | 2148 fps | 95.1% |
| Unknown powder | <<locked>> | 88% | 36,869 psi | 67% | 2348 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 46,296 psi | 84% | 2346 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,160 psi | 71% | 2254 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,289 psi | 68% | 2274 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,521 psi | 68% | 2279 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 27,760 psi | 50% | 2087 fps | 96.2% |
| Vihtavuori N160 | <<locked>> | 88% | 36,883 psi | 67% | 2326 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 45,049 psi | 82% | 2432 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 37,144 psi | 67% | 2296 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 34,969 psi | 63% | 2320 fps | 95% |
| Vihtavuori N555 | <<locked>> | 96% | 32,663 psi | 59% | 2326 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,386 psi | 57% | 2184 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 45,440 psi | 82% | 2476 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 44,962 psi | 82% | 2511 fps | 95.2% |
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 87 powders for 8.5 x 63 R loaded with the .338 | 225gr | Woodleigh PP SN. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,643 fps; across all powders the maximum-charge window runs from 1,543 fps to 2,643 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon Hybrid 100V, Hodgdon TrailBoss 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 8.5 x 63 R with the .338 | 225gr | 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.