Load Specifications
Load data in caliber 7.62 x 53 R Fin. with .308 | 200gr | Berger Hybrid Target bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 27"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 49,951 psi | 88% | 2395 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 50,589 psi | 89% | 2454 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 49,443 psi | 87% | 2474 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 50,981 psi | 90% | 2451 fps | 96.6% |
| Accurate 4064 | <<locked>> | 92% | 50,662 psi | 90% | 2497 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,240 psi | 87% | 2562 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 49,066 psi | 87% | 2487 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 50,009 psi | 88% | 2487 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,283 psi | 85% | 2444 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 48,254 psi | 85% | 2421 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 50,981 psi | 90% | 2631 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 49,168 psi | 87% | 2500 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 49,937 psi | 88% | 2523 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,631 psi | 86% | 2572 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,269 psi | 87% | 2608 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,418 psi | 61% | 2339 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 37,782 psi | 67% | 2467 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 48,124 psi | 85% | 2493 fps | 99.3% |
| Bofors RP3 | <<locked>> | 92% | 49,139 psi | 87% | 2513 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 50,038 psi | 88% | 2480 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 50,401 psi | 89% | 2431 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 50,067 psi | 89% | 2516 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,124 psi | 85% | 2546 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 92% | 50,502 psi | 89% | 2523 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 98% | 49,356 psi | 87% | 2562 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 96% | 50,778 psi | 90% | 2530 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 86% | 49,501 psi | 88% | 2497 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,773 psi | 79% | 2464 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 51,024 psi | 90% | 2566 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 50,140 psi | 89% | 2592 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,998 psi | 62% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 50,633 psi | 90% | 2497 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 48,617 psi | 86% | 2474 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 49,327 psi | 87% | 2467 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 49,647 psi | 88% | 2444 fps | 97.3% |
| IMR 4350ᴾ | <<locked>> | 100% | 49,966 psi | 88% | 2507 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,168 psi | 87% | 2470 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,949 psi | 83% | 2513 fps | 99.2% |
| IMR 4895 | <<locked>> | 90% | 51,169 psi | 90% | 2549 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 48,283 psi | 85% | 2444 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 51,140 psi | 90% | 2470 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 51,097 psi | 90% | 2503 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 49,124 psi | 87% | 2421 fps | 99.8% |
| Lovex S062 | <<locked>> | 90% | 48,965 psi | 87% | 2467 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 50,923 psi | 90% | 2503 fps | 98.7% |
| Lovex S070 | <<locked>> | 98% | 48,341 psi | 85% | 2490 fps | 97.4% |
| Norma 201 | <<locked>> | 88% | 50,952 psi | 90% | 2480 fps | 100% |
| Norma 202 | <<locked>> | 88% | 51,169 psi | 90% | 2480 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,139 psi | 87% | 2510 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 48,965 psi | 87% | 2556 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 90% | 48,950 psi | 87% | 2530 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,066 psi | 85% | 2552 fps | 98% |
| Ramshot TAC | <<locked>> | 84% | 48,385 psi | 86% | 2457 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 50,763 psi | 90% | 2520 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,081 psi | 87% | 2444 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,346 psi | 62% | 1539 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 50,923 psi | 90% | 2467 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 47,834 psi | 85% | 2457 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 49,516 psi | 88% | 2575 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,255 psi | 87% | 2612 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,747 psi | 86% | 2582 fps | 99.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,676 psi | 88% | 2608 fps | 99% |
| Rottweil R 901 | <<locked>> | 84% | 49,008 psi | 87% | 2418 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,385 psi | 86% | 2434 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 49,037 psi | 87% | 2503 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 50,038 psi | 88% | 2480 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 50,923 psi | 90% | 2503 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 51,097 psi | 90% | 2503 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 48,965 psi | 87% | 2467 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 48,341 psi | 85% | 2490 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 50,676 psi | 90% | 2562 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 49,879 psi | 88% | 2372 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 49,632 psi | 88% | 2480 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 50,357 psi | 89% | 2503 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 49,748 psi | 88% | 2385 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 49,298 psi | 87% | 2382 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 48,037 psi | 85% | 2418 fps | 97% |
| Somchem S321 | <<locked>> | 82% | 48,762 psi | 86% | 2467 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 48,849 psi | 86% | 2382 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 49,095 psi | 87% | 2474 fps | 99.8% |
| Somchem S355 | <<locked>> | 94% | 49,719 psi | 88% | 2503 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,758 psi | 77% | 2513 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 49,879 psi | 88% | 2356 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 49,879 psi | 88% | 2372 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 50,560 psi | 89% | 2444 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 48,675 psi | 86% | 2425 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 51,097 psi | 90% | 2487 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 48,486 psi | 86% | 2510 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 84% | 48,356 psi | 85% | 2438 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 49,719 psi | 88% | 2461 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,604 psi | 89% | 2562 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,637 psi | 65% | 2405 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,124 psi | 87% | 2493 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 50,995 psi | 90% | 2526 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 49,690 psi | 88% | 2569 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 30,603 psi | 54% | 2323 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 49,792 psi | 88% | 2510 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 27"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 44,324 psi | 78% | 2320 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,695 psi | 65% | 2254 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,308 psi | 77% | 2385 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 44,875 psi | 79% | 2359 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 34,737 psi | 61% | 2247 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 30,603 psi | 54% | 2228 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 40,451 psi | 72% | 2346 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 34,563 psi | 61% | 2218 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,453 psi | 75% | 2352 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 42,192 psi | 75% | 2339 fps | 100% |
| Alliant Power Pro 2000-MR | 41.3 gr | 80% | 36,622 psi | 65% | 2369 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,808 psi | 60% | 2234 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,332 psi | 64% | 2287 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 31,908 psi | 56% | 2241 fps | 95.5% |
| Alliant Reloder-17 | 40.6 gr | 80% | 29,109 psi | 51% | 2201 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 94% | 28,718 psi | 51% | 2198 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 35,186 psi | 62% | 2408 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,436 psi | 70% | 2349 fps | 98% |
| Bofors RP3 | <<locked>> | 80% | 33,257 psi | 59% | 2241 fps | 98.4% |
| Bofors RP7 | <<locked>> | 92% | 44,266 psi | 78% | 2388 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,672 psi | 79% | 2346 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,944 psi | 72% | 2375 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,744 psi | 79% | 2493 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 80% | 34,214 psi | 60% | 2238 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 92% | 40,625 psi | 72% | 2415 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 94% | 47,645 psi | 84% | 2480 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 40,770 psi | 72% | 2356 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 27,369 psi | 48% | 2106 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,767 psi | 65% | 2333 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 94% | 43,743 psi | 77% | 2487 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,194 psi | 46% | 1345 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,276 psi | 69% | 2313 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 40,016 psi | 71% | 2349 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,245 psi | 64% | 2244 fps | 97.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 41,321 psi | 73% | 2306 fps | 95.3% |
| IMR 4350 | <<locked>> | 96% | 44,005 psi | 78% | 2411 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 40,915 psi | 72% | 2333 fps | 95.1% |
| IMR 4831 | <<locked>> | 86% | 29,979 psi | 53% | 2192 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 37,159 psi | 66% | 2316 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 42,453 psi | 75% | 2352 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 47,935 psi | 85% | 2428 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,102 psi | 69% | 2326 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 41,104 psi | 73% | 2290 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 36,027 psi | 64% | 2251 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 35,404 psi | 63% | 2238 fps | 95.1% |
| Lovex S070 | <<locked>> | 92% | 40,379 psi | 71% | 2356 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 39,769 psi | 70% | 2306 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 39,871 psi | 70% | 2313 fps | 100% |
| Norma 203B | <<locked>> | 80% | 35,694 psi | 63% | 2277 fps | 98.1% |
| Norma URP | <<locked>> | 86% | 31,488 psi | 56% | 2231 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 35,244 psi | 62% | 2290 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 37,333 psi | 66% | 2359 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 42,453 psi | 75% | 2359 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,626 psi | 74% | 2375 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,137 psi | 82% | 2398 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,324 psi | 47% | 1375 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,718 psi | 84% | 2421 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 39,537 psi | 70% | 2316 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,652 psi | 67% | 2375 fps | 98.2% |
| ReloadSwiss RS 60 | 40.6 gr | 80% | 30,980 psi | 55% | 2260 fps | 99.2% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 32,822 psi | 58% | 2293 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 35,607 psi | 63% | 2346 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 43,642 psi | 77% | 2339 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,000 psi | 67% | 2267 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 31,183 psi | 55% | 2188 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 92% | 44,266 psi | 78% | 2388 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 35,404 psi | 63% | 2238 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,102 psi | 69% | 2326 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 36,027 psi | 64% | 2251 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 92% | 40,379 psi | 71% | 2356 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,242 psi | 57% | 2231 fps | 97% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 41,481 psi | 73% | 2257 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,596 psi | 72% | 2333 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,044 psi | 69% | 2320 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,292 psi | 73% | 2260 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,055 psi | 60% | 2149 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 42,221 psi | 75% | 2329 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 45,730 psi | 81% | 2425 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 40,886 psi | 72% | 2267 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,190 psi | 71% | 2333 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 32,271 psi | 57% | 2195 fps | 97.6% |
| Somchem S365 | <<locked>> | 82% | 24,860 psi | 44% | 2090 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 46,717 psi | 83% | 2313 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,481 psi | 73% | 2257 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,912 psi | 65% | 2247 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,695 psi | 67% | 2254 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,545 psi | 54% | 2139 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 86% | 33,083 psi | 58% | 2234 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 42,641 psi | 75% | 2352 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 36,274 psi | 64% | 2251 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 32,285 psi | 57% | 2238 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 92% | 28,543 psi | 50% | 2218 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 27,412 psi | 48% | 2073 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 41,829 psi | 74% | 2392 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 40,872 psi | 72% | 2421 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 98% | 28,747 psi | 51% | 2264 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,421 psi | 68% | 2326 fps | 99.1% |
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 97 powders for 7.62 x 53 R Fin. loaded with the .308 | 200gr | Berger Hybrid Target. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,631 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,631 fps. Accurate 4350 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:11.0 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 Reloder-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for 7.62 x 53 R Fin. with the .308 | 200gr | Berger Hybrid Target 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.