Load Specifications
Load data in caliber 8.5 x 63 R with .338 | 250gr | Nosler Partition Gold bullet and 90 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 Reloder-17 and Hodgdon H414.
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>> | 82% | 48,530 psi | 88% | 2251 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 49,168 psi | 89% | 2306 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 47,659 psi | 86% | 2320 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 49,124 psi | 89% | 2300 fps | 95.9% |
| Accurate 4064 | <<locked>> | 90% | 49,124 psi | 89% | 2346 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 47,776 psi | 87% | 2405 fps | 99% |
| ADI AR 2206H | <<locked>> | 84% | 47,224 psi | 86% | 2326 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 90% | 48,385 psi | 88% | 2329 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 49,545 psi | 90% | 2329 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 49,835 psi | 90% | 2313 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 49,284 psi | 89% | 2464 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 47,718 psi | 87% | 2349 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 88% | 48,283 psi | 88% | 2362 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 98% | 47,166 psi | 86% | 2411 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 47,630 psi | 86% | 2444 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,476 psi | 64% | 2231 fps | 98% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,160 psi | 71% | 2356 fps | 96.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 49,661 psi | 90% | 2382 fps | 99.3% |
| Bofors RP3 | <<locked>> | 90% | 47,703 psi | 87% | 2359 fps | 99.9% |
| Bofors RP7 | <<locked>> | 94% | 48,718 psi | 88% | 2333 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 48,617 psi | 88% | 2277 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 48,370 psi | 88% | 2359 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 49,705 psi | 90% | 2434 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 90% | 49,008 psi | 89% | 2369 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 96% | 47,819 psi | 87% | 2402 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 84% | 47,674 psi | 87% | 2336 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,151 psi | 84% | 2352 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 49,588 psi | 90% | 2408 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 48,443 psi | 88% | 2428 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 64% | 1434 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 48,849 psi | 89% | 2339 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 47,268 psi | 86% | 2326 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 47,688 psi | 87% | 2313 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 86% | 48,138 psi | 87% | 2293 fps | 96.6% |
| IMR 4350 | <<locked>> | 98% | 48,269 psi | 88% | 2349 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 47,587 psi | 86% | 2316 fps | 96.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,747 psi | 88% | 2402 fps | 99.2% |
| IMR 4895 | <<locked>> | 88% | 49,487 psi | 90% | 2388 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 49,545 psi | 90% | 2329 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 49,545 psi | 90% | 2352 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 47,485 psi | 86% | 2270 fps | 99.6% |
| Lovex S062 | <<locked>> | 88% | 47,616 psi | 86% | 2316 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 49,545 psi | 90% | 2352 fps | 98.2% |
| Lovex S070 | <<locked>> | 96% | 47,050 psi | 85% | 2336 fps | 96.7% |
| Norma 201 | <<locked>> | 86% | 49,284 psi | 89% | 2326 fps | 100% |
| Norma 202 | <<locked>> | 86% | 49,734 psi | 90% | 2333 fps | 100% |
| Norma 203B | <<locked>> | 88% | 47,543 psi | 86% | 2352 fps | 99.6% |
| Norma URP | <<locked>> | 98% | 47,543 psi | 86% | 2398 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 88% | 47,471 psi | 86% | 2372 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 98% | 46,731 psi | 85% | 2395 fps | 97.3% |
| Ramshot TAC | <<locked>> | 84% | 49,661 psi | 90% | 2346 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 48,936 psi | 89% | 2359 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,549 psi | 65% | 1467 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 49,356 psi | 90% | 2352 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 48,051 psi | 87% | 2415 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 47,558 psi | 86% | 2448 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 47,413 psi | 86% | 2425 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 47,979 psi | 87% | 2444 fps | 98.5% |
| Rottweil R 901 | <<locked>> | 82% | 47,558 psi | 86% | 2270 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 49,719 psi | 90% | 2326 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 47,601 psi | 86% | 2349 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 48,718 psi | 88% | 2333 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 49,545 psi | 90% | 2352 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 49,545 psi | 90% | 2352 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 47,616 psi | 86% | 2316 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 47,050 psi | 85% | 2336 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 49,124 psi | 89% | 2402 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 47,732 psi | 87% | 2320 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 48,776 psi | 89% | 2349 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 47,979 psi | 87% | 2238 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 47,877 psi | 87% | 2241 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 49,574 psi | 90% | 2310 fps | 96.9% |
| Somchem S335 | <<locked>> | 84% | 47,442 psi | 86% | 2241 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 47,471 psi | 86% | 2320 fps | 99.5% |
| Somchem S355 | <<locked>> | 92% | 48,501 psi | 88% | 2352 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,368 psi | 82% | 2405 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 48,196 psi | 87% | 2228 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 49,197 psi | 89% | 2300 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 46,876 psi | 85% | 2270 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 49,588 psi | 90% | 2336 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 46,934 psi | 85% | 2352 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 82% | 46,746 psi | 85% | 2287 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 88% | 48,182 psi | 87% | 2310 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 49,168 psi | 89% | 2405 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,218 psi | 69% | 2297 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 47,384 psi | 86% | 2343 fps | 99.9% |
| Winchester 748 | <<locked>> | 84% | 49,371 psi | 90% | 2372 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 48,109 psi | 87% | 2408 fps | 96.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,778 psi | 58% | 2218 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 86% | 48,356 psi | 88% | 2356 fps | 99.9% |
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% | 45,614 psi | 83% | 2215 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,174 psi | 69% | 2152 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,556 psi | 81% | 2274 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 45,992 psi | 83% | 2254 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 36,114 psi | 66% | 2146 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 31,821 psi | 58% | 2123 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 41,684 psi | 76% | 2238 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 80% | 35,592 psi | 65% | 2113 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,700 psi | 79% | 2244 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 43,758 psi | 79% | 2234 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,652 psi | 68% | 2257 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,940 psi | 63% | 2129 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,521 psi | 68% | 2182 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 32,822 psi | 60% | 2136 fps | 95.2% |
| Alliant Reloder-17 | 48 gr | 80% | 30,153 psi | 55% | 2100 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 94% | 29,762 psi | 54% | 2096 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 98% | 36,419 psi | 66% | 2300 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,654 psi | 74% | 2241 fps | 97.9% |
| Bofors RP3 | <<locked>> | 80% | 34,272 psi | 62% | 2133 fps | 98.3% |
| Bofors RP7 | <<locked>> | 92% | 45,614 psi | 83% | 2283 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,832 psi | 83% | 2238 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,163 psi | 77% | 2264 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,485 psi | 84% | 2385 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 80% | 35,244 psi | 64% | 2133 fps | 95.6% |
| Hodgdon H414 | 54 gr | 92% | 42,105 psi | 76% | 2310 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 42,018 psi | 76% | 2244 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 28,224 psi | 51% | 2005 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,971 psi | 69% | 2224 fps | 99% |
| Hodgdon Superformance | <<locked>> | 94% | 45,121 psi | 82% | 2375 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,194 psi | 48% | 1276 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,466 psi | 73% | 2208 fps | 99% |
| IMR 3031 | <<locked>> | 80% | 41,510 psi | 75% | 2244 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,347 psi | 68% | 2139 fps | 97.6% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,554 psi | 77% | 2205 fps | 95.2% |
| IMR 4350 | <<locked>> | 96% | 45,513 psi | 83% | 2306 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 44,875 psi | 81% | 2274 fps | 95.7% |
| IMR 4831 | <<locked>> | 88% | 33,127 psi | 60% | 2133 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 38,392 psi | 70% | 2208 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 80% | 43,700 psi | 79% | 2244 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 40,437 psi | 73% | 2221 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 42,163 psi | 77% | 2185 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 37,173 psi | 67% | 2146 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 36,651 psi | 67% | 2136 fps | 95% |
| Lovex S070 | <<locked>> | 92% | 41,553 psi | 75% | 2244 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 41,133 psi | 75% | 2201 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 41,162 psi | 75% | 2208 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,883 psi | 67% | 2172 fps | 98% |
| Norma URP | <<locked>> | 86% | 32,503 psi | 59% | 2126 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 36,230 psi | 66% | 2182 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 92% | 38,551 psi | 70% | 2251 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 43,569 psi | 79% | 2251 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,989 psi | 78% | 2267 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,498 psi | 48% | 1309 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 40,872 psi | 74% | 2215 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,986 psi | 71% | 2267 fps | 98% |
| ReloadSwiss RS 60 | 48 gr | 80% | 32,082 psi | 58% | 2156 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 33,895 psi | 62% | 2185 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 36,796 psi | 67% | 2238 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 45,034 psi | 82% | 2234 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,030 psi | 71% | 2159 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 32,460 psi | 59% | 2087 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 92% | 45,614 psi | 83% | 2283 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 36,651 psi | 67% | 2136 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,437 psi | 73% | 2221 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 37,173 psi | 67% | 2146 fps | 99% |
| Shooters World SW4350 | <<locked>> | 92% | 41,553 psi | 75% | 2244 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,272 psi | 60% | 2126 fps | 96.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,814 psi | 76% | 2228 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,176 psi | 73% | 2211 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,612 psi | 77% | 2162 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,259 psi | 64% | 2051 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 43,468 psi | 79% | 2221 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 42,134 psi | 76% | 2165 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,394 psi | 75% | 2224 fps | 98.8% |
| Somchem S355 | <<locked>> | 80% | 33,446 psi | 61% | 2093 fps | 97.5% |
| Somchem S365 | <<locked>> | 82% | 25,628 psi | 47% | 1988 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 42,859 psi | 78% | 2156 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,348 psi | 70% | 2146 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,044 psi | 71% | 2156 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,763 psi | 58% | 2041 fps | 98.3% |
| Vihtavuori N160 | <<locked>> | 86% | 34,113 psi | 62% | 2129 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 43,685 psi | 79% | 2241 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 37,304 psi | 68% | 2142 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 33,286 psi | 60% | 2129 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 94% | 31,531 psi | 57% | 2159 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,181 psi | 51% | 1975 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 43,149 psi | 78% | 2283 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 42,105 psi | 76% | 2310 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 98% | 29,805 psi | 54% | 2162 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,450 psi | 72% | 2215 fps | 99% |
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 106 powders for 8.5 x 63 R loaded with the .338 | 250gr | Nosler Partition Gold. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,464 fps; across all powders the maximum-charge window runs from 1,434 fps to 2,464 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.338" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 Reloder-17, Hodgdon H414 rank at the top here: for 8.5 x 63 R with the .338 | 250gr | Nosler Partition Gold they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.