Load Specifications
Load data in caliber 8.5 x 63 R with .338 | 225gr | Swift A-Frame bullet and 84 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.
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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% | 49,371 psi | 90% | 2411 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 47,079 psi | 85% | 2428 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 48,965 psi | 89% | 2484 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 46,876 psi | 85% | 2464 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,631 psi | 88% | 2562 fps | 98.5% |
| ADI AR 2206H | <<locked>> | 86% | 48,370 psi | 88% | 2487 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 92% | 49,356 psi | 90% | 2487 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 47,688 psi | 87% | 2448 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 84% | 47,529 psi | 86% | 2438 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 47,369 psi | 86% | 2579 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 48,646 psi | 88% | 2507 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 90% | 49,327 psi | 90% | 2523 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,906 psi | 87% | 2566 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 48,602 psi | 88% | 2602 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,997 psi | 62% | 2320 fps | 96.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 47,572 psi | 86% | 2493 fps | 98.4% |
| Bofors RP3 | <<locked>> | 92% | 48,660 psi | 88% | 2516 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 46,949 psi | 85% | 2395 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 49,516 psi | 90% | 2520 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 47,384 psi | 86% | 2546 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 90% | 46,905 psi | 85% | 2477 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 98% | 48,747 psi | 88% | 2556 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 86% | 48,791 psi | 89% | 2497 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,048 psi | 80% | 2457 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 47,369 psi | 86% | 2523 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,012 psi | 64% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 46,876 psi | 85% | 2451 fps | 99.4% |
| IMR 3031 | <<locked>> | 86% | 48,211 psi | 87% | 2490 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 48,747 psi | 88% | 2470 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 88% | 49,211 psi | 89% | 2448 fps | 95.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,398 psi | 84% | 2510 fps | 98.2% |
| IMR 4895 | <<locked>> | 88% | 47,456 psi | 86% | 2503 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 84% | 47,688 psi | 87% | 2448 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 86% | 47,297 psi | 86% | 2470 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 48,704 psi | 88% | 2428 fps | 99.3% |
| Lovex S062 | <<locked>> | 90% | 48,341 psi | 88% | 2470 fps | 99.8% |
| Lovex S065 | <<locked>> | 96% | 47,645 psi | 86% | 2464 fps | 97% |
| Lovex S070 | <<locked>> | 98% | 47,993 psi | 87% | 2487 fps | 95.9% |
| Norma 201 | <<locked>> | 86% | 47,398 psi | 86% | 2444 fps | 99.8% |
| Norma 202 | <<locked>> | 86% | 47,732 psi | 87% | 2451 fps | 100% |
| Norma 203B | <<locked>> | 90% | 48,501 psi | 88% | 2510 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 48,298 psi | 88% | 2552 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 90% | 48,443 psi | 88% | 2533 fps | 99.2% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 47,732 psi | 87% | 2546 fps | 96.6% |
| Ramshot TAC | <<locked>> | 84% | 47,935 psi | 87% | 2457 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 47,094 psi | 85% | 2477 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 48,501 psi | 88% | 2448 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,404 psi | 64% | 1568 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 47,500 psi | 86% | 2461 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 48,791 psi | 89% | 2575 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 48,646 psi | 88% | 2612 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,327 psi | 88% | 2582 fps | 98.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,168 psi | 89% | 2602 fps | 97.8% |
| Rottweil R 901 | <<locked>> | 84% | 48,660 psi | 88% | 2434 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 47,776 psi | 87% | 2441 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 94% | 48,559 psi | 88% | 2510 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 47,645 psi | 86% | 2464 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 86% | 47,297 psi | 86% | 2470 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 48,341 psi | 88% | 2470 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 98% | 47,993 psi | 87% | 2487 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 46,963 psi | 85% | 2516 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 49,153 psi | 89% | 2484 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 49,806 psi | 90% | 2507 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 49,211 psi | 89% | 2398 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 48,849 psi | 89% | 2398 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 48,443 psi | 88% | 2477 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 48,515 psi | 88% | 2398 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 48,544 psi | 88% | 2477 fps | 99.2% |
| Somchem S355 | <<locked>> | 94% | 49,385 psi | 90% | 2510 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,178 psi | 78% | 2510 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 82% | 49,124 psi | 89% | 2369 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 49,327 psi | 90% | 2388 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 46,862 psi | 85% | 2418 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 47,906 psi | 87% | 2431 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 47,398 psi | 86% | 2451 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 98% | 47,805 psi | 87% | 2507 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 84% | 48,037 psi | 87% | 2448 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 90% | 49,342 psi | 90% | 2474 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 46,891 psi | 85% | 2510 fps | 97.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,085 psi | 65% | 2385 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 48,660 psi | 88% | 2497 fps | 99.6% |
| Winchester 748 | <<locked>> | 84% | 47,210 psi | 86% | 2487 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 48,950 psi | 89% | 2562 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 88% | 49,429 psi | 90% | 2516 fps | 99.7% |
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% | 43,627 psi | 79% | 2329 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,274 psi | 66% | 2257 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,627 psi | 77% | 2385 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 34,301 psi | 62% | 2244 fps | 99.6% |
| Accurate 4350 | <<locked>> | 92% | 36,912 psi | 67% | 2359 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 40,074 psi | 73% | 2343 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 34,171 psi | 62% | 2208 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,090 psi | 76% | 2356 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 41,684 psi | 76% | 2352 fps | 100% |
| Alliant Power Pro 2000-MR | 51 gr | 80% | 36,056 psi | 65% | 2352 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,344 psi | 61% | 2228 fps | 97% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,955 psi | 65% | 2283 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,505 psi | 64% | 2320 fps | 95.1% |
| Alliant Reloder-17 | 52.8 gr | 84% | 32,822 psi | 60% | 2287 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,995 psi | 58% | 2267 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,044 psi | 71% | 2343 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 32,648 psi | 59% | 2224 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,135 psi | 80% | 2349 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,277 psi | 73% | 2372 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,208 psi | 80% | 2493 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 84% | 38,537 psi | 70% | 2326 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 45,701 psi | 83% | 2507 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 40,408 psi | 73% | 2356 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,472 psi | 55% | 2178 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,361 psi | 66% | 2326 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,904 psi | 47% | 1362 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,957 psi | 71% | 2313 fps | 98.1% |
| IMR 3031 | <<locked>> | 80% | 39,595 psi | 72% | 2356 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,824 psi | 65% | 2238 fps | 96.2% |
| IMR 4166 Enduron | <<locked>> | 86% | 46,282 psi | 84% | 2402 fps | 95.1% |
| IMR 4831 | <<locked>> | 92% | 35,737 psi | 65% | 2316 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 36,796 psi | 67% | 2310 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 80% | 42,090 psi | 76% | 2356 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 38,711 psi | 70% | 2329 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 40,640 psi | 74% | 2293 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 35,578 psi | 65% | 2244 fps | 98% |
| Lovex S065 | <<locked>> | 92% | 42,119 psi | 76% | 2369 fps | 95.6% |
| Lovex S070 | <<locked>> | 96% | 45,092 psi | 82% | 2441 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 39,392 psi | 71% | 2306 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 39,363 psi | 71% | 2316 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,346 psi | 64% | 2274 fps | 96.7% |
| Norma URP | <<locked>> | 92% | 37,507 psi | 68% | 2359 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 34,664 psi | 63% | 2277 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 96% | 41,959 psi | 76% | 2448 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 42,032 psi | 76% | 2356 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,147 psi | 75% | 2375 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,411 psi | 82% | 2398 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,353 psi | 48% | 1398 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,425 psi | 81% | 2408 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,217 psi | 68% | 2369 fps | 96.6% |
| ReloadSwiss RS 60 | 50.3 gr | 80% | 30,763 psi | 56% | 2244 fps | 97.7% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,811 psi | 67% | 2372 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,306 psi | 73% | 2438 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 43,149 psi | 78% | 2346 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,463 psi | 68% | 2264 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 30,806 psi | 56% | 2175 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,119 psi | 76% | 2369 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,711 psi | 70% | 2329 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 35,578 psi | 65% | 2244 fps | 98% |
| Shooters World SW4350 | <<locked>> | 96% | 45,092 psi | 82% | 2441 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,923 psi | 58% | 2221 fps | 95.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,987 psi | 73% | 2326 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,638 psi | 70% | 2316 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,930 psi | 74% | 2270 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,736 psi | 61% | 2152 fps | 99.8% |
| Somchem S321 | <<locked>> | 80% | 45,310 psi | 82% | 2428 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 40,495 psi | 73% | 2277 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,813 psi | 72% | 2329 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 31,923 psi | 58% | 2188 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 27,717 psi | 50% | 2165 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 46,340 psi | 84% | 2329 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,118 psi | 75% | 2270 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,492 psi | 66% | 2254 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,304 psi | 68% | 2260 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,197 psi | 55% | 2133 fps | 96.9% |
| Vihtavuori N160 | <<locked>> | 90% | 36,956 psi | 67% | 2316 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 41,974 psi | 76% | 2349 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 35,926 psi | 65% | 2251 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 36,201 psi | 66% | 2316 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 33,968 psi | 62% | 2339 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,734 psi | 56% | 2152 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 41,263 psi | 75% | 2392 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 45,963 psi | 83% | 2510 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,782 psi | 69% | 2316 fps | 97.9% |
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 84 powders for 8.5 x 63 R loaded with the .338 | 225gr | Swift A-Frame. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,612 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,612 fps. Accurate 4350 gives the best case fill at 100 %, and 84 of the 84 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 1:16.5 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. 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 | Swift A-Frame 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.