Load Specifications
Load data in caliber 8.5 x 63 R with .338 | 220gr | Atomic 29 HP bullet and 85 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>> | 86% | 48,095 psi | 87% | 2411 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 49,371 psi | 90% | 2470 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 47,587 psi | 86% | 2461 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 47,282 psi | 86% | 2477 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 47,500 psi | 86% | 2497 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 43,018 psi | 78% | 2487 fps | 96.9% |
| ADI AR 2206H | <<locked>> | 88% | 47,239 psi | 86% | 2484 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 94% | 48,167 psi | 87% | 2480 fps | 98.3% |
| ADI Benchmark 8208 | <<locked>> | 86% | 46,659 psi | 85% | 2444 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 88% | 48,936 psi | 89% | 2477 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 47,514 psi | 86% | 2530 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 49,443 psi | 90% | 2618 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 47,050 psi | 85% | 2497 fps | 99.3% |
| Alliant Reloder-10x | <<locked>> | 82% | 48,196 psi | 87% | 2421 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 48,008 psi | 87% | 2516 fps | 98.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,729 psi | 79% | 2497 fps | 97% |
| Alliant Reloder-17 | <<locked>> | 98% | 47,137 psi | 86% | 2589 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 49,661 psi | 90% | 2539 fps | 98.3% |
| Bofors RP3 | <<locked>> | 94% | 46,818 psi | 85% | 2507 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 49,066 psi | 89% | 2441 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 88% | 47,848 psi | 87% | 2513 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 86% | 49,763 psi | 90% | 2598 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 82% | 47,137 psi | 86% | 2451 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 47,703 psi | 87% | 2470 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 48,573 psi | 88% | 2516 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 88% | 47,630 psi | 86% | 2493 fps | 99.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,972 psi | 73% | 2395 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 49,008 psi | 89% | 2566 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,243 psi | 62% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 48,849 psi | 89% | 2497 fps | 99.2% |
| IMR 3031 | <<locked>> | 90% | 49,763 psi | 90% | 2533 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 47,616 psi | 86% | 2464 fps | 98.4% |
| IMR 4198 | <<locked>> | 82% | 49,124 psi | 89% | 2388 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 41,568 psi | 75% | 2444 fps | 96.6% |
| IMR 4895 | <<locked>> | 92% | 49,168 psi | 89% | 2546 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 86% | 46,659 psi | 85% | 2444 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 84% | 49,240 psi | 89% | 2480 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 90% | 48,805 psi | 89% | 2510 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 47,906 psi | 87% | 2425 fps | 98.8% |
| Lovex S062 | <<locked>> | 94% | 49,806 psi | 90% | 2507 fps | 99.7% |
| Lovex S065ᴾ | <<locked>> | 100% | 48,950 psi | 89% | 2493 fps | 96.6% |
| Norma 201 | <<locked>> | 90% | 48,950 psi | 89% | 2484 fps | 99.7% |
| Norma 202 | <<locked>> | 90% | 49,400 psi | 90% | 2493 fps | 100% |
| Norma 203B | <<locked>> | 92% | 47,181 psi | 86% | 2503 fps | 98.8% |
| Norma URPᴾ | <<locked>> | 100% | 43,627 psi | 79% | 2487 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 92% | 47,123 psi | 86% | 2523 fps | 98.6% |
| Ramshot TAC | <<locked>> | 86% | 47,021 psi | 85% | 2451 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 49,023 psi | 89% | 2520 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 47,674 psi | 87% | 2444 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,534 psi | 63% | 1558 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 49,371 psi | 90% | 2480 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 49,487 psi | 90% | 2500 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 47,210 psi | 86% | 2566 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 47,137 psi | 86% | 2598 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 43,279 psi | 79% | 2510 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 86% | 47,137 psi | 86% | 2431 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 49,342 psi | 90% | 2480 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 98% | 49,806 psi | 90% | 2543 fps | 99.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 48,950 psi | 89% | 2493 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 90% | 48,805 psi | 89% | 2510 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 49,806 psi | 90% | 2507 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 49,182 psi | 89% | 2451 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 48,530 psi | 88% | 2552 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 49,168 psi | 89% | 2438 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 47,718 psi | 87% | 2470 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 48,718 psi | 88% | 2503 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 48,153 psi | 87% | 2398 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 47,790 psi | 87% | 2398 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 47,123 psi | 86% | 2474 fps | 99.6% |
| Somchem S335 | <<locked>> | 88% | 47,340 psi | 86% | 2398 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 47,471 psi | 86% | 2474 fps | 98.7% |
| Somchem S355 | <<locked>> | 96% | 47,471 psi | 86% | 2497 fps | 99.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,638 psi | 70% | 2438 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 84% | 48,399 psi | 88% | 2379 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 48,225 psi | 88% | 2392 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 48,327 psi | 88% | 2461 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 49,821 psi | 90% | 2474 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 48,979 psi | 89% | 2487 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 46,079 psi | 84% | 2490 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 86% | 46,992 psi | 85% | 2448 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 92% | 47,979 psi | 87% | 2470 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 45,049 psi | 82% | 2493 fps | 96.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 47,529 psi | 86% | 2487 fps | 99.1% |
| Winchester 748 | <<locked>> | 88% | 48,994 psi | 89% | 2533 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 48,008 psi | 87% | 2510 fps | 99.2% |
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% | 39,726 psi | 72% | 2287 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 43,091 psi | 78% | 2379 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 31,763 psi | 58% | 2195 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 38,363 psi | 70% | 2333 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 30,081 psi | 55% | 2178 fps | 98.5% |
| Accurate 4350 | <<locked>> | 96% | 37,260 psi | 68% | 2382 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 36,521 psi | 66% | 2287 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 35,404 psi | 64% | 2247 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,595 psi | 70% | 2306 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 80% | 37,333 psi | 68% | 2310 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,585 psi | 81% | 2480 fps | 98.8% |
| Alliant Power Pro 2000-MR | 51.1 gr | 84% | 37,608 psi | 68% | 2395 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,994 psi | 54% | 2169 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,252 psi | 82% | 2379 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 34,592 psi | 63% | 2267 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 96% | 38,754 psi | 70% | 2398 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 88% | 33,750 psi | 61% | 2320 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 37,898 psi | 69% | 2333 fps | 95.5% |
| Bofors RP3 | <<locked>> | 82% | 31,140 psi | 56% | 2211 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,741 psi | 74% | 2306 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,434 psi | 66% | 2316 fps | 98.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 40,089 psi | 73% | 2431 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 80% | 43,932 psi | 80% | 2402 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 44,570 psi | 81% | 2421 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 39,755 psi | 72% | 2365 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 36,767 psi | 67% | 2300 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 32,938 psi | 60% | 2251 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,721 psi | 59% | 2260 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,440 psi | 46% | 1358 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,636 psi | 65% | 2260 fps | 96.6% |
| IMR 3031 | <<locked>> | 80% | 35,679 psi | 65% | 2306 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 34,809 psi | 63% | 2231 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 46,325 psi | 84% | 2349 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 38,754 psi | 70% | 2392 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 33,199 psi | 60% | 2251 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 38,595 psi | 70% | 2306 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 80% | 42,743 psi | 78% | 2379 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 34,577 psi | 63% | 2270 fps | 98.7% |
| Lovex S060 | <<locked>> | 80% | 37,608 psi | 68% | 2244 fps | 96.7% |
| Lovex S062 | <<locked>> | 80% | 32,198 psi | 58% | 2188 fps | 96.5% |
| Lovex S065 | <<locked>> | 96% | 43,091 psi | 78% | 2398 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 35,621 psi | 65% | 2251 fps | 97.5% |
| Norma 202 | <<locked>> | 80% | 35,853 psi | 65% | 2267 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 33,939 psi | 62% | 2257 fps | 95.6% |
| Norma URP | <<locked>> | 96% | 38,247 psi | 69% | 2388 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 82% | 33,562 psi | 61% | 2267 fps | 95% |
| Ramshot TAC | <<locked>> | 84% | 43,801 psi | 79% | 2398 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,362 psi | 68% | 2316 fps | 96.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,901 psi | 76% | 2349 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,585 psi | 46% | 1391 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,410 psi | 79% | 2385 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 46,325 psi | 84% | 2451 fps | 95.2% |
| ReloadSwiss RS 52 | 48.4 gr | 82% | 35,839 psi | 65% | 2356 fps | 95.5% |
| ReloadSwiss RS 60 | 47.9 gr | 80% | 27,659 psi | 50% | 2165 fps | 95.2% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 40,408 psi | 73% | 2457 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 39,189 psi | 71% | 2297 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 33,982 psi | 62% | 2208 fps | 97% |
| Rottweil R 903 | <<locked>> | 84% | 31,227 psi | 57% | 2208 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 43,091 psi | 78% | 2398 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,577 psi | 63% | 2270 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 32,198 psi | 58% | 2188 fps | 96.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,948 psi | 83% | 2402 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 34,954 psi | 63% | 2303 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 46,093 psi | 84% | 2395 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 41,611 psi | 76% | 2369 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,128 psi | 64% | 2260 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,507 psi | 68% | 2224 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,632 psi | 56% | 2103 fps | 99% |
| Somchem S321 | <<locked>> | 80% | 41,220 psi | 75% | 2375 fps | 98.9% |
| Somchem S335 | <<locked>> | 80% | 36,912 psi | 67% | 2228 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 36,027 psi | 65% | 2270 fps | 96% |
| Somchem S355 | <<locked>> | 84% | 32,372 psi | 59% | 2215 fps | 95.5% |
| Somchem S365 | <<locked>> | 92% | 29,979 psi | 54% | 2238 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 42,699 psi | 77% | 2297 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,652 psi | 68% | 2231 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,721 psi | 59% | 2205 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,794 psi | 61% | 2208 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 82% | 28,805 psi | 52% | 2116 fps | 95.7% |
| Vihtavuori N160 | <<locked>> | 94% | 37,956 psi | 69% | 2346 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 38,421 psi | 70% | 2300 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 80% | 32,401 psi | 59% | 2195 fps | 98.5% |
| Vihtavuori N550 | <<locked>> | 96% | 39,363 psi | 71% | 2392 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 33,968 psi | 62% | 2234 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 37,144 psi | 67% | 2333 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,171 psi | 62% | 2260 fps | 96.3% |
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 85 powders for 8.5 x 63 R loaded with the .338 | 220gr | Atomic 29 HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,618 fps; across all powders the maximum-charge window runs from 1,519 fps to 2,618 fps. Accurate 4350 gives the best case fill at 100 %, and 85 of the 85 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 220.0 gr projectile in 0.338" calls for a 1:14.0 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 Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 8.5 x 63 R with the .338 | 220gr | Atomic 29 HP 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.