Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 200gr | NorthFork Bonded Core 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, Hodgdon CFE223 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.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 54,201 psi | 90% | 2346 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 52,533 psi | 87% | 2369 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 50,836 psi | 84% | 2359 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 53,911 psi | 90% | 2421 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 53,882 psi | 90% | 2434 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,670 psi | 71% | 2349 fps | 97.2% |
| Accurate LT-30 | <<locked>> | 82% | 51,213 psi | 85% | 2257 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 51,605 psi | 86% | 2277 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 52,895 psi | 88% | 2425 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 98% | 53,940 psi | 90% | 2421 fps | 99.3% |
| ADI AR 2219 | <<locked>> | 82% | 51,227 psi | 85% | 2362 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 52,620 psi | 87% | 2388 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 90% | 51,750 psi | 86% | 2369 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 54,128 psi | 90% | 2480 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 52,040 psi | 86% | 2513 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 52,692 psi | 88% | 2438 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 86% | 54,375 psi | 90% | 2352 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 53,563 psi | 89% | 2454 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,279 psi | 72% | 2352 fps | 97.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,864 psi | 83% | 2490 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 53,200 psi | 88% | 2300 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 52,330 psi | 87% | 2434 fps | 98.9% |
| Bofors RP3 | <<locked>> | 98% | 53,040 psi | 88% | 2451 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 51,561 psi | 86% | 2333 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 92% | 54,302 psi | 90% | 2457 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 52,402 psi | 87% | 2490 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 86% | 53,214 psi | 88% | 2388 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 54,244 psi | 90% | 2415 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 51,111 psi | 85% | 2411 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 92% | 53,345 psi | 89% | 2434 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,711 psi | 66% | 2260 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 51,677 psi | 86% | 2461 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,563 psi | 57% | 1421 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 51,634 psi | 86% | 2395 fps | 99.7% |
| IMR 3031 | <<locked>> | 92% | 52,446 psi | 87% | 2421 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 53,258 psi | 88% | 2402 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 92% | 51,140 psi | 85% | 2343 fps | 95.8% |
| IMR 4198 | <<locked>> | 84% | 51,895 psi | 86% | 2280 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 53,287 psi | 89% | 2402 fps | 96.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 41,075 psi | 68% | 2303 fps | 96.9% |
| IMR 4895 | <<locked>> | 94% | 51,779 psi | 86% | 2441 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 90% | 52,620 psi | 87% | 2388 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 86% | 52,286 psi | 87% | 2375 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 51,605 psi | 86% | 2405 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 53,766 psi | 89% | 2369 fps | 99.6% |
| Lovex S062 | <<locked>> | 96% | 52,576 psi | 87% | 2402 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 48,385 psi | 80% | 2346 fps | 96.8% |
| Norma 200 | <<locked>> | 82% | 54,331 psi | 90% | 2329 fps | 100% |
| Norma 201 | <<locked>> | 92% | 51,909 psi | 86% | 2382 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 52,127 psi | 87% | 2385 fps | 100% |
| Norma 203B | <<locked>> | 96% | 52,692 psi | 88% | 2444 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 43,149 psi | 72% | 2346 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 96% | 52,982 psi | 88% | 2467 fps | 99.5% |
| Ramshot TAC | <<locked>> | 90% | 52,968 psi | 88% | 2402 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 90% | 51,793 psi | 86% | 2418 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 88% | 54,041 psi | 90% | 2395 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,896 psi | 58% | 1457 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 52,431 psi | 87% | 2379 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 52,112 psi | 87% | 2398 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 53,359 psi | 89% | 2513 fps | 99.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 53,272 psi | 89% | 2543 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,569 psi | 71% | 2362 fps | 96.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 44,295 psi | 74% | 2382 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 90% | 52,982 psi | 88% | 2365 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 51,982 psi | 86% | 2372 fps | 99.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 52,518 psi | 87% | 2438 fps | 99.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 48,385 psi | 80% | 2346 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 92% | 51,605 psi | 86% | 2405 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 52,576 psi | 87% | 2402 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 52,054 psi | 86% | 2346 fps | 99.8% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 51,358 psi | 85% | 2372 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 51,256 psi | 85% | 2451 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 51,851 psi | 86% | 2326 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 54,288 psi | 90% | 2421 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 51,314 psi | 85% | 2402 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 54,317 psi | 90% | 2333 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 53,403 psi | 89% | 2329 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 53,621 psi | 89% | 2421 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 53,200 psi | 88% | 2333 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 53,563 psi | 89% | 2415 fps | 99.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 53,258 psi | 88% | 2438 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,290 psi | 64% | 2300 fps | 99% |
| Vihtavuori N130 | <<locked>> | 88% | 54,404 psi | 90% | 2310 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 54,143 psi | 90% | 2323 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 54,215 psi | 90% | 2385 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 52,692 psi | 88% | 2369 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 51,605 psi | 86% | 2382 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,672 psi | 76% | 2349 fps | 97.5% |
| Vihtavuori N530 | <<locked>> | 90% | 52,997 psi | 88% | 2388 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 96% | 53,780 psi | 89% | 2405 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,411 psi | 74% | 2349 fps | 97.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,702 psi | 78% | 2336 fps | 99.2% |
| Winchester 748 | <<locked>> | 90% | 51,924 psi | 86% | 2428 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 54,302 psi | 90% | 2454 fps | 99.9% |
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% | 39,958 psi | 66% | 2156 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 43,091 psi | 72% | 2241 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,256 psi | 54% | 2080 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 38,218 psi | 63% | 2198 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 30,501 psi | 51% | 2064 fps | 99% |
| Accurate 4350 | <<locked>> | 96% | 36,941 psi | 61% | 2251 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 48,298 psi | 80% | 2221 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,689 psi | 81% | 2241 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 36,593 psi | 61% | 2162 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 35,230 psi | 59% | 2119 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 47,906 psi | 80% | 2320 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,595 psi | 64% | 2175 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 80% | 37,347 psi | 62% | 2178 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,469 psi | 74% | 2339 fps | 99.1% |
| Alliant Power Pro 2000-MR | 38.4 gr | 84% | 37,362 psi | 62% | 2260 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,994 psi | 50% | 2051 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,136 psi | 75% | 2234 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 34,592 psi | 57% | 2142 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 94% | 36,260 psi | 60% | 2218 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 86% | 31,734 psi | 53% | 2146 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 47,079 psi | 78% | 2224 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 35,346 psi | 59% | 2156 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 29,124 psi | 48% | 2044 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,828 psi | 68% | 2172 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,318 psi | 60% | 2185 fps | 98.5% |
| Hodgdon CFE223 | 37.5 gr | 80% | 39,972 psi | 66% | 2293 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 80% | 43,729 psi | 73% | 2260 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 44,280 psi | 74% | 2280 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 39,407 psi | 65% | 2228 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 36,854 psi | 61% | 2172 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 30,951 psi | 51% | 2083 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,750 psi | 54% | 2136 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,672 psi | 43% | 1266 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,592 psi | 59% | 2133 fps | 97% |
| IMR 3031 | <<locked>> | 80% | 35,462 psi | 59% | 2175 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 32,764 psi | 54% | 2064 fps | 95% |
| IMR 4166 Enduron | <<locked>> | 90% | 47,979 psi | 80% | 2297 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 45,992 psi | 76% | 2205 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 49,995 psi | 83% | 2356 fps | 95.5% |
| IMR 4831 | <<locked>> | 96% | 36,187 psi | 60% | 2215 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 33,344 psi | 55% | 2129 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 80% | 38,595 psi | 64% | 2175 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 42,902 psi | 71% | 2244 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 34,592 psi | 57% | 2142 fps | 99% |
| Lovex S060 | <<locked>> | 80% | 37,420 psi | 62% | 2113 fps | 97% |
| Lovex S062 | <<locked>> | 80% | 32,227 psi | 54% | 2067 fps | 96.9% |
| Lovex S065 | <<locked>> | 96% | 43,163 psi | 72% | 2267 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 50,894 psi | 85% | 2287 fps | 100% |
| Norma 201 | <<locked>> | 80% | 35,795 psi | 59% | 2123 fps | 97.9% |
| Norma 202 | <<locked>> | 80% | 35,766 psi | 59% | 2139 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 32,010 psi | 53% | 2093 fps | 95.4% |
| Norma URP | <<locked>> | 96% | 38,116 psi | 63% | 2254 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 82% | 33,475 psi | 56% | 2139 fps | 95.5% |
| Ramshot TAC | <<locked>> | 82% | 40,930 psi | 68% | 2215 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,217 psi | 62% | 2185 fps | 96.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,756 psi | 69% | 2211 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,788 psi | 43% | 1296 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,076 psi | 72% | 2244 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 45,759 psi | 76% | 2306 fps | 95.4% |
| ReloadSwiss RS 52 | 35.5 gr | 80% | 33,402 psi | 55% | 2172 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 27,963 psi | 46% | 2057 fps | 96.1% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 37,347 psi | 62% | 2267 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 41,510 psi | 69% | 2329 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 39,740 psi | 66% | 2172 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 34,055 psi | 57% | 2083 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 29,501 psi | 49% | 2047 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 96% | 43,163 psi | 72% | 2267 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,592 psi | 57% | 2142 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 32,227 psi | 54% | 2067 fps | 96.9% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,629 psi | 76% | 2257 fps | 99.3% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 48,124 psi | 80% | 2329 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 32,851 psi | 55% | 2133 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,919 psi | 76% | 2251 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 38,725 psi | 64% | 2185 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,070 psi | 58% | 2133 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,608 psi | 62% | 2096 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,777 psi | 51% | 1985 fps | 99.3% |
| Somchem S321 | <<locked>> | 80% | 41,089 psi | 68% | 2241 fps | 99.1% |
| Somchem S335 | <<locked>> | 80% | 36,985 psi | 61% | 2103 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 35,926 psi | 60% | 2142 fps | 96.5% |
| Somchem S355 | <<locked>> | 82% | 30,690 psi | 51% | 2057 fps | 95.4% |
| Somchem S365 | <<locked>> | 90% | 28,311 psi | 47% | 2073 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 42,728 psi | 71% | 2159 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,652 psi | 63% | 2100 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,866 psi | 55% | 2080 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,823 psi | 56% | 2083 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 27,180 psi | 45% | 1962 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 94% | 37,768 psi | 63% | 2215 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 38,218 psi | 63% | 2165 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 80% | 32,416 psi | 54% | 2073 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 94% | 36,796 psi | 61% | 2218 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 31,836 psi | 53% | 2067 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 37,173 psi | 62% | 2205 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,997 psi | 56% | 2133 fps | 96.7% |
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. Ackley Improved loaded with the .308 | 200gr | NorthFork Bonded Core. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,543 fps; across all powders the maximum-charge window runs from 1,421 fps to 2,543 fps. Accurate 4350 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 57–90 %, 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 4350, Alliant Reloder-16, Alliant Reloder-17 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, Hodgdon CFE223, ReloadSwiss RS 52 rank at the top here: for .308 Win. Ackley Improved with the .308 | 200gr | NorthFork Bonded Core 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.