Load Specifications
Load data in caliber .308 Win. with .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets bullet and 94 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 52 and Hodgdon CFE223.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 52,663 psi | 87% | 2303 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 53,795 psi | 89% | 2385 fps | 98.8% |
| Accurate 2230 | <<locked>> | 84% | 53,969 psi | 90% | 2392 fps | 99.1% |
| Accurate 2460 | <<locked>> | 88% | 50,778 psi | 84% | 2323 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 51,387 psi | 85% | 2346 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 53,417 psi | 89% | 2402 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 53,417 psi | 89% | 2402 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 51,024 psi | 85% | 2379 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 54,041 psi | 90% | 2264 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 51,198 psi | 85% | 2241 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 51,677 psi | 86% | 2375 fps | 99.2% |
| ADI AR 2207 | <<locked>> | 82% | 51,692 psi | 86% | 2238 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 52,533 psi | 87% | 2369 fps | 98.7% |
| ADI AR 2219 | <<locked>> | 86% | 53,635 psi | 89% | 2365 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 51,387 psi | 85% | 2343 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 94% | 53,142 psi | 88% | 2362 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 52,489 psi | 87% | 2428 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 54,346 psi | 90% | 2507 fps | 99% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 50,821 psi | 84% | 2382 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 88% | 53,026 psi | 88% | 2313 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 52,156 psi | 87% | 2405 fps | 98.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 44,962 psi | 75% | 2379 fps | 98.6% |
| Alliant Reloder-7 | <<locked>> | 82% | 52,779 psi | 88% | 2257 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 52,750 psi | 88% | 2267 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 50,952 psi | 85% | 2385 fps | 98.3% |
| Bofors RP3ᴾ | <<locked>> | 100% | 50,662 psi | 84% | 2395 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 92% | 53,882 psi | 90% | 2333 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 94% | 52,547 psi | 87% | 2408 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 90% | 50,937 psi | 85% | 2438 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 90% | 51,082 psi | 85% | 2336 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 52,649 psi | 87% | 2369 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 53,229 psi | 88% | 2408 fps | 98% |
| Hodgdon H4198 | <<locked>> | 84% | 52,576 psi | 87% | 2260 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 52,040 psi | 86% | 2385 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 35,795 psi | 59% | 2156 fps | 96.2% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 53,345 psi | 89% | 2451 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,823 psi | 56% | 1385 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 52,243 psi | 87% | 2372 fps | 99.5% |
| IMR 3031 | <<locked>> | 98% | 51,822 psi | 86% | 2392 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 51,082 psi | 85% | 2343 fps | 98.8% |
| IMR 4198 | <<locked>> | 88% | 53,896 psi | 90% | 2277 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 53,417 psi | 89% | 2431 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 92% | 51,387 psi | 85% | 2343 fps | 99.7% |
| Lovex D073.4 | <<locked>> | 82% | 50,937 psi | 85% | 2329 fps | 100% |
| Lovex D073.5 | <<locked>> | 90% | 54,462 psi | 90% | 2375 fps | 100% |
| Lovex D073.6 | <<locked>> | 96% | 53,026 psi | 88% | 2395 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 52,837 psi | 88% | 2323 fps | 99.2% |
| Lovex S062ᴾ | <<locked>> | 100% | 54,215 psi | 90% | 2392 fps | 99.9% |
| Norma 200 | <<locked>> | 84% | 52,547 psi | 87% | 2287 fps | 100% |
| Norma 201 | <<locked>> | 96% | 53,258 psi | 88% | 2369 fps | 99.8% |
| Norma 202 | <<locked>> | 96% | 53,548 psi | 89% | 2375 fps | 100% |
| Norma 203B | <<locked>> | 98% | 51,198 psi | 85% | 2395 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 98% | 51,358 psi | 85% | 2415 fps | 99% |
| Ramshot TAC | <<locked>> | 92% | 52,083 psi | 87% | 2352 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 94% | 54,201 psi | 90% | 2415 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 90% | 52,837 psi | 88% | 2346 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,084 psi | 57% | 1421 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 51,416 psi | 85% | 2336 fps | 100% |
| ReloadSwiss RS 50ᴾ | <<locked>> | 100% | 54,143 psi | 90% | 2388 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 51,343 psi | 85% | 2454 fps | 98.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,138 psi | 80% | 2438 fps | 100% |
| Rottweil R 901 | <<locked>> | 94% | 54,433 psi | 90% | 2359 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 53,737 psi | 89% | 2365 fps | 99.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 46,876 psi | 78% | 2336 fps | 99.1% |
| Shooters World AR Plus | <<locked>> | 82% | 50,937 psi | 85% | 2329 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 96% | 53,026 psi | 88% | 2395 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 54,215 psi | 90% | 2392 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 51,300 psi | 85% | 2306 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 52,344 psi | 87% | 2024 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 53,780 psi | 89% | 2372 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 49,588 psi | 82% | 2395 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 54,331 psi | 90% | 2329 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 52,794 psi | 88% | 2369 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 53,156 psi | 88% | 2392 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 52,997 psi | 88% | 2290 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 52,127 psi | 87% | 2287 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 52,141 psi | 87% | 2375 fps | 99.9% |
| Somchem S335 | <<locked>> | 94% | 51,895 psi | 86% | 2293 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 52,170 psi | 87% | 2365 fps | 99.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 48,240 psi | 80% | 2343 fps | 99.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 34,534 psi | 57% | 2195 fps | 97.4% |
| Vihtavuori N120 | <<locked>> | 84% | 51,242 psi | 85% | 2188 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 51,909 psi | 86% | 2257 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 51,837 psi | 86% | 2274 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 52,054 psi | 86% | 2339 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 53,345 psi | 89% | 2352 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,625 psi | 67% | 2205 fps | 98.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 43,265 psi | 72% | 2274 fps | 96.3% |
| Vihtavuori N530 | <<locked>> | 90% | 51,198 psi | 85% | 2349 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 98% | 53,040 psi | 88% | 2379 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,105 psi | 72% | 2316 fps | 96.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,612 psi | 71% | 2238 fps | 98% |
| Winchester 748 | <<locked>> | 90% | 51,053 psi | 85% | 2392 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 51,547 psi | 86% | 2388 fps | 99.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 36,129 psi | 60% | 2077 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 47,210 psi | 78% | 2293 fps | 97.9% |
| Accurate 2230 | <<locked>> | 80% | 46,891 psi | 78% | 2297 fps | 98.2% |
| Accurate 2460 | <<locked>> | 80% | 38,870 psi | 65% | 2152 fps | 99.6% |
| Accurate 2495 | <<locked>> | 80% | 28,152 psi | 47% | 1988 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 32,735 psi | 54% | 2090 fps | 98.3% |
| Accurate 2520 | <<locked>> | 80% | 32,735 psi | 54% | 2090 fps | 98.3% |
| Accurate 4064 | <<locked>> | 80% | 26,687 psi | 44% | 1969 fps | 97.5% |
| Accurate LT-30 | <<locked>> | 80% | 45,092 psi | 75% | 2149 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 45,469 psi | 76% | 2165 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 33,199 psi | 55% | 2070 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 48,791 psi | 81% | 2205 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 36,260 psi | 60% | 2113 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 43,685 psi | 73% | 2238 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,201 psi | 58% | 2087 fps | 97.2% |
| Alliant AR-Comp | <<locked>> | 80% | 33,301 psi | 55% | 2093 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,292 psi | 67% | 2244 fps | 98% |
| Alliant Power Pro 2000-MR | 37.6 gr | 88% | 39,001 psi | 65% | 2257 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 30,472 psi | 51% | 2041 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,452 psi | 69% | 2162 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 35,592 psi | 59% | 2139 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 92% | 34,737 psi | 58% | 2185 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 49,530 psi | 82% | 2218 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,497 psi | 72% | 2149 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 39,160 psi | 65% | 2201 fps | 95.7% |
| Bofors RP3 | <<locked>> | 84% | 29,356 psi | 49% | 2034 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,478 psi | 62% | 2090 fps | 98.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 32,663 psi | 54% | 2093 fps | 97.2% |
| Hodgdon CFE223 | 35 gr | 80% | 36,245 psi | 60% | 2195 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 36,941 psi | 61% | 2129 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 42,873 psi | 71% | 2234 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 92% | 40,625 psi | 67% | 2221 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 46,601 psi | 77% | 2185 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 33,344 psi | 55% | 2080 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 33,605 psi | 56% | 2113 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 31,763 psi | 53% | 2090 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,990 psi | 42% | 1234 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 31,850 psi | 53% | 2034 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 29,240 psi | 49% | 2031 fps | 99.3% |
| IMR 4064 | <<locked>> | 88% | 35,317 psi | 59% | 2090 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 42,815 psi | 71% | 2139 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 34,098 psi | 57% | 2123 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 35,201 psi | 58% | 2087 fps | 97.2% |
| Lovex D073.4 | <<locked>> | 80% | 47,732 psi | 79% | 2287 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 38,508 psi | 64% | 2152 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 30,603 psi | 51% | 2044 fps | 97.7% |
| Lovex S060 | <<locked>> | 80% | 34,461 psi | 57% | 2031 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 28,964 psi | 48% | 1975 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 46,615 psi | 77% | 2215 fps | 100% |
| Norma 201 | <<locked>> | 80% | 32,372 psi | 54% | 2034 fps | 96.4% |
| Norma 202 | <<locked>> | 80% | 32,155 psi | 53% | 2047 fps | 98.6% |
| Norma 203B | <<locked>> | 84% | 32,692 psi | 54% | 2087 fps | 95% |
| Ramshot Big Game | <<locked>> | 86% | 34,519 psi | 57% | 2136 fps | 95.2% |
| Ramshot TAC | <<locked>> | 86% | 42,743 psi | 71% | 2215 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 33,852 psi | 56% | 2093 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 38,072 psi | 63% | 2123 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,034 psi | 42% | 1263 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,537 psi | 66% | 2162 fps | 99.2% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 47,355 psi | 79% | 2297 fps | 95.1% |
| ReloadSwiss RS 52 | 35.6 gr | 86% | 36,680 psi | 61% | 2218 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 28,558 psi | 47% | 2047 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 35,810 psi | 59% | 2083 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 80% | 30,676 psi | 51% | 1991 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 88% | 31,618 psi | 53% | 2077 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 47,732 psi | 79% | 2287 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,603 psi | 51% | 2044 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 28,964 psi | 48% | 1975 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 41,974 psi | 70% | 2175 fps | 98.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 49,530 psi | 82% | 1995 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,222 psi | 73% | 2247 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 35,752 psi | 59% | 2165 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,061 psi | 70% | 2172 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 40,118 psi | 67% | 2185 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 33,794 psi | 56% | 2083 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,316 psi | 57% | 2014 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,746 psi | 46% | 1903 fps | 98.2% |
| Somchem S321 | <<locked>> | 80% | 37,144 psi | 62% | 2149 fps | 98% |
| Somchem S335 | <<locked>> | 80% | 33,736 psi | 56% | 2021 fps | 99.4% |
| Somchem S341 | <<locked>> | 82% | 34,809 psi | 58% | 2096 fps | 95.5% |
| Somchem S355 | <<locked>> | 88% | 33,040 psi | 55% | 2087 fps | 95.8% |
| Somchem S365 | <<locked>> | 96% | 30,429 psi | 51% | 2103 fps | 95.8% |
| Vihtavuori N120 | <<locked>> | 80% | 45,658 psi | 76% | 2123 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,522 psi | 64% | 2077 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,010 psi | 53% | 1982 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 29,240 psi | 49% | 1995 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 29,979 psi | 50% | 1988 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 88% | 28,007 psi | 47% | 1965 fps | 95.4% |
| Vihtavuori N160 | <<locked>> | 98% | 40,596 psi | 67% | 2231 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 36,564 psi | 61% | 2123 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 80% | 29,631 psi | 49% | 2005 fps | 97.8% |
| Vihtavuori N550 | <<locked>> | 98% | 40,147 psi | 67% | 2267 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 34,940 psi | 58% | 2100 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 36,100 psi | 60% | 2162 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,363 psi | 64% | 2192 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 94 powders for .308 Win. loaded with the .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,507 fps; across all powders the maximum-charge window runs from 1,385 fps to 2,507 fps. Accurate 4064 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, ADI AR 2208, Alliant Reloder- TS 15.5 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 52, Hodgdon CFE223 rank at the top here: for .308 Win. with the .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets 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.