Load Specifications
Load data in caliber 8.5 x 63 R with .338 | 225gr | Speer TBBC bullet and 82 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 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.
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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% | 48,066 psi | 87% | 2382 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 49,153 psi | 89% | 2441 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 48,486 psi | 88% | 2441 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 47,384 psi | 86% | 2451 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 48,312 psi | 88% | 2474 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,688 psi | 85% | 2520 fps | 98% |
| ADI AR 2206H | <<locked>> | 86% | 47,050 psi | 85% | 2454 fps | 99% |
| ADI AR 2208 | <<locked>> | 92% | 47,935 psi | 87% | 2451 fps | 98.6% |
| ADI Benchmark 8208 | <<locked>> | 86% | 49,458 psi | 90% | 2464 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 86% | 49,168 psi | 89% | 2451 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 48,907 psi | 89% | 2589 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 47,166 psi | 86% | 2470 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 90% | 47,834 psi | 87% | 2487 fps | 98.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,557 psi | 84% | 2526 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 46,963 psi | 85% | 2562 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 49,284 psi | 89% | 2507 fps | 98.5% |
| Bofors RP3 | <<locked>> | 92% | 47,123 psi | 86% | 2484 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 48,602 psi | 88% | 2408 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 47,747 psi | 87% | 2484 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 84% | 49,226 psi | 89% | 2562 fps | 99% |
| Hodgdon H380 | <<locked>> | 92% | 48,370 psi | 88% | 2487 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 86% | 47,471 psi | 86% | 2464 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,641 psi | 77% | 2421 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 48,747 psi | 88% | 2536 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,867 psi | 63% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 48,718 psi | 88% | 2470 fps | 99.4% |
| IMR 3031 | <<locked>> | 88% | 49,647 psi | 90% | 2500 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 47,543 psi | 86% | 2438 fps | 98.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,599 psi | 81% | 2467 fps | 97.6% |
| IMR 4895 | <<locked>> | 90% | 48,994 psi | 89% | 2516 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 86% | 49,458 psi | 90% | 2464 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 82% | 49,023 psi | 89% | 2448 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 48,834 psi | 89% | 2480 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 47,442 psi | 86% | 2395 fps | 99% |
| Lovex S062 | <<locked>> | 90% | 47,036 psi | 85% | 2438 fps | 99.7% |
| Lovex S065 | <<locked>> | 98% | 48,936 psi | 89% | 2470 fps | 97% |
| Lovex S070ᴾ | <<locked>> | 100% | 49,414 psi | 90% | 2497 fps | 95.9% |
| Norma 201 | <<locked>> | 88% | 48,863 psi | 89% | 2454 fps | 99.8% |
| Norma 202 | <<locked>> | 88% | 49,182 psi | 89% | 2461 fps | 100% |
| Norma 203B | <<locked>> | 90% | 47,050 psi | 85% | 2477 fps | 99% |
| Norma URPᴾ | <<locked>> | 100% | 46,731 psi | 85% | 2516 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 90% | 46,876 psi | 85% | 2493 fps | 98.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 45,977 psi | 83% | 2503 fps | 95.8% |
| Ramshot TAC | <<locked>> | 86% | 49,647 psi | 90% | 2470 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 48,718 psi | 88% | 2487 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 47,311 psi | 86% | 2415 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,244 psi | 64% | 1552 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 49,037 psi | 89% | 2448 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 49,052 psi | 89% | 2470 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 47,137 psi | 86% | 2536 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 46,978 psi | 85% | 2572 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,441 psi | 84% | 2539 fps | 97.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,558 psi | 86% | 2559 fps | 97.1% |
| Rottweil R 901 | <<locked>> | 84% | 47,369 psi | 86% | 2405 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 49,284 psi | 89% | 2451 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 94% | 46,789 psi | 85% | 2470 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 48,936 psi | 89% | 2470 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 88% | 48,834 psi | 89% | 2480 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 47,036 psi | 85% | 2438 fps | 99.7% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 49,414 psi | 90% | 2497 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 48,428 psi | 88% | 2526 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 47,500 psi | 86% | 2444 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 48,370 psi | 88% | 2474 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 48,066 psi | 87% | 2369 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 47,616 psi | 86% | 2369 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 46,963 psi | 85% | 2444 fps | 99.7% |
| Somchem S335 | <<locked>> | 86% | 47,210 psi | 86% | 2369 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 47,195 psi | 86% | 2444 fps | 98.9% |
| Somchem S355 | <<locked>> | 94% | 47,906 psi | 87% | 2477 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,568 psi | 75% | 2467 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 82% | 48,109 psi | 87% | 2346 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 48,138 psi | 87% | 2362 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 48,573 psi | 88% | 2431 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 49,516 psi | 90% | 2441 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 48,907 psi | 89% | 2461 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,211 psi | 89% | 2516 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 86% | 49,617 psi | 90% | 2457 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 90% | 47,979 psi | 87% | 2441 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,269 psi | 88% | 2520 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 47,079 psi | 85% | 2457 fps | 99.3% |
| Winchester 748 | <<locked>> | 86% | 48,762 psi | 88% | 2500 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 47,761 psi | 87% | 2477 fps | 99.4% |
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% | 42,554 psi | 77% | 2303 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,050 psi | 84% | 2395 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,998 psi | 64% | 2224 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,249 psi | 75% | 2352 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 33,098 psi | 60% | 2211 fps | 99.4% |
| Accurate 4350 | <<locked>> | 92% | 35,505 psi | 64% | 2320 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 38,986 psi | 71% | 2313 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 35,418 psi | 64% | 2224 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,017 psi | 74% | 2326 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 40,234 psi | 73% | 2323 fps | 100% |
| Alliant Power Pro 2000-MR | 50.8 gr | 82% | 37,565 psi | 68% | 2372 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,256 psi | 59% | 2192 fps | 96.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,911 psi | 63% | 2247 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 36,651 psi | 67% | 2333 fps | 95.2% |
| Alliant Reloder-17 | 51.2 gr | 84% | 31,807 psi | 58% | 2247 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,724 psi | 68% | 2306 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 31,575 psi | 57% | 2192 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,047 psi | 78% | 2320 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,044 psi | 71% | 2336 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,902 psi | 78% | 2457 fps | 97.9% |
| Hodgdon H380 | <<locked>> | 86% | 39,900 psi | 72% | 2343 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 39,262 psi | 71% | 2323 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,386 psi | 57% | 2188 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,186 psi | 64% | 2290 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,947 psi | 47% | 1352 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,710 psi | 68% | 2277 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 38,261 psi | 69% | 2323 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,780 psi | 63% | 2205 fps | 95.6% |
| IMR 4831 | <<locked>> | 94% | 36,869 psi | 67% | 2329 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 35,679 psi | 65% | 2277 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 80% | 41,017 psi | 74% | 2326 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 45,890 psi | 83% | 2402 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 37,362 psi | 68% | 2293 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 39,610 psi | 72% | 2260 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 34,490 psi | 63% | 2211 fps | 97.5% |
| Lovex S065 | <<locked>> | 92% | 40,843 psi | 74% | 2333 fps | 95% |
| Lovex S070 | <<locked>> | 98% | 46,282 psi | 84% | 2448 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 38,290 psi | 69% | 2274 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 38,203 psi | 69% | 2283 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 34,272 psi | 62% | 2241 fps | 96.1% |
| Norma URP | <<locked>> | 92% | 36,318 psi | 66% | 2323 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 33,591 psi | 61% | 2241 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 98% | 43,207 psi | 78% | 2454 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 40,756 psi | 74% | 2320 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,987 psi | 73% | 2339 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,266 psi | 80% | 2365 fps | 98.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,194 psi | 48% | 1385 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,934 psi | 83% | 2402 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 46,035 psi | 84% | 2421 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,911 psi | 65% | 2329 fps | 96% |
| ReloadSwiss RS 60 | 48.8 gr | 80% | 29,834 psi | 54% | 2208 fps | 97% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 38,101 psi | 69% | 2388 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 41,553 psi | 75% | 2448 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 42,119 psi | 76% | 2320 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,361 psi | 66% | 2228 fps | 98% |
| Rottweil R 903 | <<locked>> | 80% | 29,776 psi | 54% | 2142 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 40,843 psi | 74% | 2333 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,362 psi | 68% | 2293 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 34,490 psi | 63% | 2211 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 98% | 46,282 psi | 84% | 2448 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 32,953 psi | 60% | 2234 fps | 95.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,841 psi | 70% | 2293 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,463 psi | 68% | 2283 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,943 psi | 72% | 2244 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,851 psi | 60% | 2123 fps | 99.6% |
| Somchem S321 | <<locked>> | 80% | 43,830 psi | 80% | 2392 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 39,407 psi | 72% | 2247 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,464 psi | 70% | 2293 fps | 97.2% |
| Somchem S355 | <<locked>> | 80% | 30,922 psi | 56% | 2156 fps | 95.4% |
| Somchem S365 | <<locked>> | 88% | 28,631 psi | 52% | 2178 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 45,295 psi | 82% | 2306 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,089 psi | 73% | 2244 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,462 psi | 64% | 2224 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,216 psi | 66% | 2231 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 29,254 psi | 53% | 2100 fps | 96.3% |
| Vihtavuori N160 | <<locked>> | 92% | 38,189 psi | 69% | 2326 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 40,886 psi | 74% | 2320 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 34,766 psi | 63% | 2218 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 92% | 37,159 psi | 67% | 2326 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,923 psi | 58% | 2169 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 39,972 psi | 73% | 2359 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,593 psi | 66% | 2283 fps | 97.4% |
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 82 powders for 8.5 x 63 R loaded with the .338 | 225gr | Speer TBBC. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,589 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,589 fps. Accurate 4350 gives the best case fill at 100 %, and 82 of the 82 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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, Alliant Power Pro 2000-MR rank at the top here: for 8.5 x 63 R with the .338 | 225gr | Speer TBBC 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.