Load Specifications
Load data in caliber 8.5 x 63 R with .338 | 225gr | Alaska Bullet Works Kodiak PP SPBC bullet and 81 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% | 48,530 psi | 88% | 2392 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 49,835 psi | 90% | 2454 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 48,950 psi | 89% | 2448 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 47,805 psi | 87% | 2461 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 48,994 psi | 89% | 2487 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 47,572 psi | 86% | 2539 fps | 98.2% |
| ADI AR 2206H | <<locked>> | 86% | 47,442 psi | 86% | 2464 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 92% | 48,530 psi | 88% | 2467 fps | 98.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 49,835 psi | 90% | 2474 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 86% | 49,690 psi | 90% | 2461 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 49,458 psi | 90% | 2605 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 47,805 psi | 87% | 2487 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 90% | 48,457 psi | 88% | 2500 fps | 98.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,036 psi | 85% | 2539 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 96% | 47,703 psi | 87% | 2579 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 49,850 psi | 90% | 2520 fps | 98.6% |
| Bofors RP3 | <<locked>> | 92% | 47,543 psi | 86% | 2493 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 49,008 psi | 89% | 2418 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 48,356 psi | 88% | 2497 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 82% | 46,456 psi | 84% | 2523 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 92% | 48,965 psi | 89% | 2500 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 86% | 47,848 psi | 87% | 2474 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,134 psi | 78% | 2434 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 49,371 psi | 90% | 2546 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,882 psi | 63% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 49,052 psi | 89% | 2477 fps | 99.5% |
| IMR 3031 | <<locked>> | 86% | 47,123 psi | 86% | 2470 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 47,877 psi | 87% | 2448 fps | 98.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 45,353 psi | 82% | 2487 fps | 97.9% |
| IMR 4895 | <<locked>> | 90% | 49,647 psi | 90% | 2530 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 86% | 49,835 psi | 90% | 2474 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 82% | 49,647 psi | 90% | 2461 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 49,516 psi | 90% | 2497 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 48,051 psi | 87% | 2411 fps | 99.1% |
| Lovex S062 | <<locked>> | 90% | 47,456 psi | 86% | 2448 fps | 99.7% |
| Lovex S065 | <<locked>> | 98% | 49,472 psi | 90% | 2484 fps | 97.2% |
| Norma 201 | <<locked>> | 88% | 49,501 psi | 90% | 2467 fps | 99.8% |
| Norma 202 | <<locked>> | 88% | 49,864 psi | 90% | 2474 fps | 100% |
| Norma 203B | <<locked>> | 90% | 47,674 psi | 87% | 2490 fps | 99.1% |
| Norma URPᴾ | <<locked>> | 100% | 47,282 psi | 86% | 2530 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 90% | 47,427 psi | 86% | 2507 fps | 99% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 46,688 psi | 85% | 2520 fps | 96.1% |
| Ramshot TAC | <<locked>> | 84% | 46,920 psi | 85% | 2431 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 49,269 psi | 89% | 2503 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 82% | 47,688 psi | 87% | 2428 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,273 psi | 64% | 1558 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 49,487 psi | 90% | 2457 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 49,574 psi | 90% | 2484 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 47,819 psi | 87% | 2552 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 47,485 psi | 86% | 2585 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,166 psi | 86% | 2556 fps | 97.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,167 psi | 87% | 2575 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 84% | 47,834 psi | 87% | 2415 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 46,804 psi | 85% | 2418 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 94% | 47,442 psi | 86% | 2484 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 49,472 psi | 90% | 2484 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 88% | 49,516 psi | 90% | 2497 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 47,456 psi | 86% | 2448 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 49,052 psi | 89% | 2539 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 48,109 psi | 87% | 2457 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 48,994 psi | 89% | 2487 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 48,472 psi | 88% | 2379 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 47,964 psi | 87% | 2379 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 49,705 psi | 90% | 2441 fps | 95.8% |
| Somchem S321 | <<locked>> | 82% | 47,355 psi | 86% | 2454 fps | 99.8% |
| Somchem S335 | <<locked>> | 86% | 47,616 psi | 86% | 2379 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 47,790 psi | 87% | 2457 fps | 99% |
| Somchem S355 | <<locked>> | 94% | 48,254 psi | 88% | 2487 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,090 psi | 76% | 2484 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 82% | 48,559 psi | 88% | 2356 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 48,559 psi | 88% | 2372 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 48,979 psi | 89% | 2441 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 46,992 psi | 85% | 2411 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 49,501 psi | 90% | 2474 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 46,789 psi | 85% | 2484 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 84% | 47,079 psi | 85% | 2425 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 90% | 48,298 psi | 88% | 2451 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,762 psi | 88% | 2533 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 47,703 psi | 87% | 2470 fps | 99.4% |
| Winchester 748 | <<locked>> | 86% | 49,429 psi | 90% | 2513 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 48,385 psi | 88% | 2493 fps | 99.5% |
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% | 43,033 psi | 78% | 2313 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,746 psi | 85% | 2408 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,476 psi | 64% | 2238 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,843 psi | 76% | 2369 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 33,547 psi | 61% | 2224 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 36,085 psi | 65% | 2336 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 39,378 psi | 71% | 2323 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 82% | 35,781 psi | 65% | 2238 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,408 psi | 75% | 2336 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 40,741 psi | 74% | 2336 fps | 100% |
| Alliant Power Pro 2000-MR | 50.1 gr | 80% | 35,534 psi | 64% | 2329 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,634 psi | 59% | 2205 fps | 96.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,288 psi | 64% | 2260 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 92% | 36,912 psi | 67% | 2343 fps | 95.4% |
| Alliant Reloder-17 | 51.8 gr | 84% | 32,213 psi | 58% | 2264 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,276 psi | 69% | 2323 fps | 96.1% |
| Bofors RP3 | <<locked>> | 80% | 32,010 psi | 58% | 2205 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,453 psi | 79% | 2333 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,639 psi | 72% | 2352 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,294 psi | 79% | 2467 fps | 98% |
| Hodgdon H380 | <<locked>> | 84% | 37,710 psi | 68% | 2303 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 39,668 psi | 72% | 2333 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,821 psi | 58% | 2205 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,534 psi | 64% | 2300 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,846 psi | 47% | 1355 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,101 psi | 69% | 2290 fps | 97.7% |
| IMR 3031 | <<locked>> | 80% | 38,711 psi | 70% | 2336 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,157 psi | 64% | 2218 fps | 95.9% |
| IMR 4831 | <<locked>> | 92% | 34,998 psi | 64% | 2293 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 36,071 psi | 65% | 2290 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 80% | 41,408 psi | 75% | 2336 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 46,340 psi | 84% | 2411 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 37,782 psi | 69% | 2306 fps | 99.5% |
| Lovex S060 | <<locked>> | 80% | 39,972 psi | 73% | 2270 fps | 97.7% |
| Lovex S062 | <<locked>> | 80% | 34,896 psi | 63% | 2224 fps | 97.7% |
| Lovex S065 | <<locked>> | 92% | 41,394 psi | 75% | 2349 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 38,682 psi | 70% | 2287 fps | 98.6% |
| Norma 202 | <<locked>> | 80% | 38,638 psi | 70% | 2297 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 34,650 psi | 63% | 2251 fps | 96.3% |
| Norma URP | <<locked>> | 92% | 36,796 psi | 67% | 2336 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 34,142 psi | 62% | 2260 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 98% | 43,845 psi | 80% | 2470 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 41,263 psi | 75% | 2333 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,350 psi | 73% | 2352 fps | 97.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,831 psi | 81% | 2379 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,078 psi | 47% | 1388 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,398 psi | 84% | 2411 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 43,729 psi | 79% | 2388 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,289 psi | 66% | 2343 fps | 96.2% |
| ReloadSwiss RS 60 | 49.3 gr | 80% | 30,095 psi | 55% | 2221 fps | 97.2% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 38,595 psi | 70% | 2402 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 42,206 psi | 77% | 2464 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 42,583 psi | 77% | 2329 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 36,767 psi | 67% | 2241 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 80% | 30,139 psi | 55% | 2156 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,394 psi | 75% | 2349 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,782 psi | 69% | 2306 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 34,896 psi | 63% | 2224 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,257 psi | 60% | 2244 fps | 95.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,218 psi | 71% | 2306 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,840 psi | 69% | 2293 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,190 psi | 73% | 2251 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,069 psi | 60% | 2133 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 46,398 psi | 84% | 2392 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 44,411 psi | 81% | 2408 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 39,798 psi | 72% | 2257 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,001 psi | 71% | 2310 fps | 97.4% |
| Somchem S355 | <<locked>> | 80% | 31,270 psi | 57% | 2165 fps | 95.6% |
| Somchem S365 | <<locked>> | 88% | 28,906 psi | 52% | 2188 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 45,513 psi | 83% | 2313 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,335 psi | 73% | 2251 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,694 psi | 65% | 2234 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,622 psi | 66% | 2241 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 29,602 psi | 54% | 2113 fps | 96.5% |
| Vihtavuori N160 | <<locked>> | 90% | 36,230 psi | 66% | 2293 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 41,292 psi | 75% | 2329 fps | 99% |
| Vihtavuori N540 | <<locked>> | 80% | 35,128 psi | 64% | 2228 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 92% | 37,666 psi | 68% | 2339 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,285 psi | 59% | 2182 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 40,350 psi | 73% | 2369 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,159 psi | 67% | 2300 fps | 97.6% |
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 81 powders for 8.5 x 63 R loaded with the .338 | 225gr | Alaska Bullet Works Kodiak PP SPBC. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,605 fps; across all powders the maximum-charge window runs from 1,519 fps to 2,605 fps. Accurate 4350 gives the best case fill at 100 %, and 81 of the 81 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 1:15.5 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 | Alaska Bullet Works Kodiak PP SPBC 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.