Load Specifications
Load data in caliber 8.5 x 63 R with .338 | 225gr | Woodleigh HS bullet and 83 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 ReloadSwiss RS 52.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 49,037 psi | 89% | 2402 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 49,414 psi | 90% | 2457 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 46,514 psi | 84% | 2454 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 49,414 psi | 90% | 2497 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 47,935 psi | 87% | 2546 fps | 98.3% |
| ADI AR 2206H | <<locked>> | 86% | 47,877 psi | 87% | 2482 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 92% | 48,921 psi | 89% | 2484 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 47,181 psi | 86% | 2434 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 84% | 46,891 psi | 85% | 2432 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 49,777 psi | 90% | 2621 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 48,196 psi | 87% | 2504 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 90% | 48,863 psi | 89% | 2519 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,211 psi | 87% | 2558 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 47,964 psi | 87% | 2597 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,214 psi | 62% | 2312 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 47,152 psi | 86% | 2490 fps | 98.3% |
| Bofors RP3 | <<locked>> | 92% | 47,935 psi | 87% | 2510 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 49,429 psi | 90% | 2436 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 48,762 psi | 88% | 2507 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 46,876 psi | 85% | 2533 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 82% | 47,065 psi | 85% | 2435 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 49,327 psi | 90% | 2518 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 96% | 49,719 psi | 90% | 2577 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 86% | 48,269 psi | 88% | 2493 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,541 psi | 81% | 2455 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 49,748 psi | 90% | 2556 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,491 psi | 64% | 1525 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 48,370 psi | 88% | 2470 fps | 99.5% |
| IMR 3031 | <<locked>> | 90% | 49,211 psi | 89% | 2509 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 47,529 psi | 86% | 2448 fps | 98.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 41,858 psi | 76% | 2418 fps | 97% |
| IMR 4895 | <<locked>> | 88% | 46,949 psi | 85% | 2500 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 84% | 47,181 psi | 86% | 2444 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 86% | 46,514 psi | 84% | 2462 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 48,211 psi | 87% | 2423 fps | 99.2% |
| Lovex S062 | <<locked>> | 90% | 47,819 psi | 87% | 2466 fps | 99.8% |
| Lovex S065 | <<locked>> | 98% | 49,777 psi | 90% | 2499 fps | 97.4% |
| Lovex S070 | <<locked>> | 98% | 48,762 psi | 88% | 2482 fps | 95.8% |
| Norma 201 | <<locked>> | 86% | 46,833 psi | 85% | 2437 fps | 99.7% |
| Norma 202 | <<locked>> | 86% | 47,137 psi | 86% | 2447 fps | 100% |
| Norma 203B | <<locked>> | 90% | 48,051 psi | 87% | 2509 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 48,849 psi | 89% | 2546 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 90% | 47,747 psi | 87% | 2525 fps | 99.1% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,312 psi | 88% | 2539 fps | 96.4% |
| Ramshot TAC | <<locked>> | 84% | 47,253 psi | 86% | 2449 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 49,647 psi | 90% | 2518 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 82% | 48,051 psi | 87% | 2443 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,346 psi | 64% | 1563 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 46,905 psi | 85% | 2453 fps | 96% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 48,269 psi | 88% | 2571 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 48,037 psi | 87% | 2605 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,529 psi | 86% | 2573 fps | 98.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,994 psi | 89% | 2591 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 84% | 48,051 psi | 87% | 2429 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 47,239 psi | 86% | 2436 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 94% | 47,834 psi | 87% | 2502 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 49,777 psi | 90% | 2499 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 46,514 psi | 84% | 2462 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 47,819 psi | 87% | 2466 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 49,371 psi | 90% | 2556 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 48,486 psi | 88% | 2475 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 49,313 psi | 89% | 2503 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 48,646 psi | 88% | 2393 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 48,370 psi | 88% | 2393 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 47,732 psi | 87% | 2471 fps | 99.8% |
| Somchem S335 | <<locked>> | 86% | 48,008 psi | 87% | 2395 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 48,153 psi | 87% | 2473 fps | 99.1% |
| Somchem S355 | <<locked>> | 94% | 48,631 psi | 88% | 2503 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,569 psi | 79% | 2504 fps | 99.7% |
| Unknown powder | <<locked>> | 98% | 49,052 psi | 89% | 2556 fps | 97.9% |
| Vihtavuori N130 | <<locked>> | 82% | 47,892 psi | 87% | 2358 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 48,385 psi | 88% | 2383 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 49,501 psi | 90% | 2451 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 49,705 psi | 90% | 2462 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 46,630 psi | 85% | 2445 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 98% | 49,661 psi | 90% | 2532 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 82% | 46,717 psi | 85% | 2445 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 90% | 49,284 psi | 89% | 2485 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 46,688 psi | 85% | 2529 fps | 98% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,969 psi | 65% | 2380 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 47,964 psi | 87% | 2488 fps | 99.6% |
| Winchester 748 | <<locked>> | 82% | 46,963 psi | 85% | 2490 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 49,719 psi | 90% | 2577 fps | 96.2% |
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% | 43,236 psi | 78% | 2320 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,708 psi | 65% | 2244 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,553 psi | 74% | 2359 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 33,765 psi | 61% | 2231 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 36,201 psi | 66% | 2339 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 39,581 psi | 72% | 2337 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 33,895 psi | 62% | 2207 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,568 psi | 75% | 2343 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 40,988 psi | 74% | 2348 fps | 100% |
| Alliant Power Pro 2000-MR | 50.4 gr | 80% | 35,665 psi | 65% | 2347 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,025 psi | 60% | 2225 fps | 96.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,491 psi | 64% | 2276 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 92% | 37,217 psi | 68% | 2362 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 84% | 32,358 psi | 59% | 2280 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,546 psi | 57% | 2262 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,624 psi | 70% | 2340 fps | 96.4% |
| Bofors RP3 | <<locked>> | 80% | 32,358 psi | 59% | 2224 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,613 psi | 79% | 2345 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,798 psi | 72% | 2359 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,714 psi | 79% | 2477 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 80% | 44,251 psi | 80% | 2392 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 38,043 psi | 69% | 2321 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 94% | 46,325 psi | 84% | 2521 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 39,856 psi | 72% | 2349 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,923 psi | 58% | 2219 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,837 psi | 61% | 2267 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,049 psi | 47% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,665 psi | 65% | 2244 fps | 97.1% |
| IMR 3031 | <<locked>> | 80% | 35,911 psi | 65% | 2294 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,083 psi | 60% | 2175 fps | 95.2% |
| IMR 4831 | <<locked>> | 96% | 35,882 psi | 65% | 2324 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 36,260 psi | 66% | 2303 fps | 97% |
| IMR 8208 XBR | <<locked>> | 80% | 41,568 psi | 75% | 2350 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 80% | 38,159 psi | 69% | 2324 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 40,335 psi | 73% | 2290 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 35,259 psi | 64% | 2243 fps | 98% |
| Lovex S065 | <<locked>> | 92% | 41,669 psi | 76% | 2364 fps | 95.5% |
| Lovex S070 | <<locked>> | 96% | 44,483 psi | 81% | 2434 fps | 95% |
| Norma 201 | <<locked>> | 80% | 38,899 psi | 71% | 2300 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 39,030 psi | 71% | 2314 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 34,853 psi | 63% | 2265 fps | 96.5% |
| Norma URP | <<locked>> | 92% | 37,115 psi | 67% | 2356 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 34,243 psi | 62% | 2272 fps | 96% |
| Ramshot Hunter | <<locked>> | 98% | 45,136 psi | 82% | 2489 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 41,626 psi | 76% | 2351 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,698 psi | 74% | 2370 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,976 psi | 82% | 2393 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,281 psi | 48% | 1397 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,063 psi | 80% | 2406 fps | 95.3% |
| ReloadSwiss RS 52 | 48.9 gr | 80% | 36,695 psi | 67% | 2361 fps | 96.5% |
| ReloadSwiss RS 60 | 49.7 gr | 80% | 30,400 psi | 55% | 2240 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,448 psi | 66% | 2370 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 39,827 psi | 72% | 2430 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 42,786 psi | 78% | 2345 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 36,956 psi | 67% | 2256 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 30,342 psi | 55% | 2170 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,669 psi | 76% | 2364 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,159 psi | 69% | 2324 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 35,259 psi | 64% | 2243 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,531 psi | 57% | 2214 fps | 95% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,552 psi | 72% | 2323 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,159 psi | 69% | 2312 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,567 psi | 74% | 2267 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,417 psi | 61% | 2148 fps | 99.7% |
| Somchem S321 | <<locked>> | 80% | 44,831 psi | 81% | 2424 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 39,972 psi | 73% | 2270 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,334 psi | 71% | 2326 fps | 97.6% |
| Somchem S355 | <<locked>> | 80% | 31,473 psi | 57% | 2181 fps | 95.9% |
| Somchem S365 | <<locked>> | 86% | 27,369 psi | 50% | 2158 fps | 95.2% |
| Unknown powder | <<locked>> | 90% | 38,130 psi | 69% | 2362 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 45,136 psi | 82% | 2319 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,058 psi | 69% | 2224 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,143 psi | 66% | 2244 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,361 psi | 66% | 2247 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 26,861 psi | 49% | 2056 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 88% | 35,839 psi | 65% | 2291 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 43,743 psi | 79% | 2397 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 36,071 psi | 65% | 2265 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 35,868 psi | 65% | 2329 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 34,287 psi | 62% | 2334 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,472 psi | 55% | 2148 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 43,990 psi | 80% | 2442 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 46,325 psi | 84% | 2521 fps | 95.3% |
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 83 powders for 8.5 x 63 R loaded with the .338 | 225gr | Woodleigh HS. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,621 fps; across all powders the maximum-charge window runs from 1,525 fps to 2,621 fps. Accurate 4350 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:15.5 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 8.5 x 63 R with the .338 | 225gr | Woodleigh HS 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.