Load Specifications
Load data in caliber .308 Win. with .308 | 200gr | Sako Hammerhead 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.
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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>> | 90% | 53,737 psi | 89% | 2333 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 54,143 psi | 90% | 2418 fps | 99.2% |
| Accurate 2460 | <<locked>> | 86% | 52,127 psi | 87% | 2359 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 54,041 psi | 90% | 2388 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 53,519 psi | 89% | 2411 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 53,432 psi | 89% | 2421 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,337 psi | 70% | 2336 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 84% | 54,215 psi | 90% | 2290 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 51,517 psi | 86% | 2270 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 52,910 psi | 88% | 2418 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 98% | 53,606 psi | 89% | 2408 fps | 99.2% |
| ADI AR 2219 | <<locked>> | 84% | 54,302 psi | 90% | 2395 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 52,214 psi | 87% | 2379 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 90% | 51,721 psi | 86% | 2362 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 53,650 psi | 89% | 2464 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 51,779 psi | 86% | 2503 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 52,330 psi | 87% | 2425 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 86% | 53,925 psi | 90% | 2339 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 53,577 psi | 89% | 2448 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,323 psi | 72% | 2346 fps | 97.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,603 psi | 82% | 2477 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 53,171 psi | 88% | 2293 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 52,344 psi | 87% | 2428 fps | 98.8% |
| Bofors RP3 | <<locked>> | 98% | 52,707 psi | 88% | 2441 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 51,561 psi | 86% | 2326 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 92% | 53,969 psi | 90% | 2448 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 52,054 psi | 86% | 2480 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 86% | 53,098 psi | 88% | 2382 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 53,853 psi | 89% | 2402 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 54,331 psi | 90% | 2448 fps | 98.6% |
| Hodgdon H4895 | <<locked>> | 92% | 53,316 psi | 89% | 2425 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,392 psi | 65% | 2247 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 51,372 psi | 85% | 2448 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,548 psi | 57% | 1414 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 51,256 psi | 85% | 2382 fps | 99.6% |
| IMR 3031 | <<locked>> | 92% | 52,011 psi | 86% | 2411 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 53,258 psi | 88% | 2395 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 94% | 54,172 psi | 90% | 2375 fps | 96.4% |
| IMR 4198 | <<locked>> | 84% | 51,372 psi | 85% | 2267 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 52,982 psi | 88% | 2392 fps | 96.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,756 psi | 68% | 2290 fps | 96.7% |
| IMR 4895 | <<locked>> | 94% | 51,372 psi | 85% | 2428 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 90% | 52,214 psi | 87% | 2379 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 86% | 52,243 psi | 87% | 2369 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 51,532 psi | 86% | 2398 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 53,403 psi | 89% | 2356 fps | 99.5% |
| Lovex S062 | <<locked>> | 96% | 52,591 psi | 87% | 2395 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 48,414 psi | 80% | 2339 fps | 96.8% |
| Norma 200 | <<locked>> | 82% | 53,838 psi | 89% | 2316 fps | 100% |
| Norma 201 | <<locked>> | 92% | 51,532 psi | 86% | 2369 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 51,706 psi | 86% | 2375 fps | 100% |
| Norma 203B | <<locked>> | 96% | 52,678 psi | 88% | 2438 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 42,859 psi | 71% | 2333 fps | 97% |
| Ramshot Big Game | <<locked>> | 96% | 52,649 psi | 87% | 2454 fps | 99.4% |
| Ramshot TAC | <<locked>> | 90% | 52,678 psi | 88% | 2388 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 90% | 51,401 psi | 85% | 2405 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 88% | 53,693 psi | 89% | 2382 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,882 psi | 58% | 1450 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 51,996 psi | 86% | 2365 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 51,764 psi | 86% | 2385 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 52,895 psi | 88% | 2500 fps | 99.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 52,982 psi | 88% | 2533 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,308 psi | 70% | 2352 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 90% | 52,895 psi | 88% | 2359 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 51,953 psi | 86% | 2365 fps | 99.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 52,199 psi | 87% | 2425 fps | 99.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 48,414 psi | 80% | 2339 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 92% | 51,532 psi | 86% | 2398 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 52,591 psi | 87% | 2395 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 52,054 psi | 86% | 2339 fps | 99.8% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 51,271 psi | 85% | 2362 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 54,375 psi | 90% | 2484 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 51,706 psi | 86% | 2320 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 53,940 psi | 90% | 2411 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 54,346 psi | 90% | 2431 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 53,911 psi | 90% | 2323 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 53,403 psi | 89% | 2323 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 53,185 psi | 88% | 2408 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 52,837 psi | 88% | 2323 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 53,577 psi | 89% | 2411 fps | 99.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 53,287 psi | 89% | 2428 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,029 psi | 63% | 2287 fps | 98.8% |
| Vihtavuori N130 | <<locked>> | 88% | 53,940 psi | 90% | 2297 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 53,722 psi | 89% | 2310 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 53,766 psi | 89% | 2375 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 52,315 psi | 87% | 2359 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 51,213 psi | 85% | 2369 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,353 psi | 75% | 2336 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 90% | 52,620 psi | 87% | 2379 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 96% | 53,766 psi | 89% | 2398 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,150 psi | 73% | 2339 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,499 psi | 77% | 2326 fps | 99.1% |
| Winchester 748 | <<locked>> | 90% | 51,517 psi | 86% | 2418 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 53,911 psi | 90% | 2441 fps | 99.8% |
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% | 39,827 psi | 66% | 2149 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 50,995 psi | 85% | 2372 fps | 98.8% |
| Accurate 2460 | <<locked>> | 80% | 43,062 psi | 72% | 2234 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,097 psi | 53% | 2070 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 38,116 psi | 63% | 2192 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 30,400 psi | 51% | 2057 fps | 98.9% |
| Accurate 4350 | <<locked>> | 96% | 36,854 psi | 61% | 2244 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 48,225 psi | 80% | 2215 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,602 psi | 81% | 2231 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 36,245 psi | 60% | 2149 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 35,114 psi | 58% | 2110 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 47,776 psi | 79% | 2313 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,189 psi | 63% | 2162 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 80% | 36,927 psi | 61% | 2165 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,005 psi | 73% | 2326 fps | 99% |
| Alliant Power Pro 2000-MR | 38.2 gr | 84% | 37,318 psi | 62% | 2251 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,892 psi | 50% | 2041 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,005 psi | 75% | 2228 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 34,534 psi | 57% | 2136 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 96% | 38,334 psi | 64% | 2251 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 88% | 33,547 psi | 56% | 2182 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,659 psi | 78% | 2211 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 37,637 psi | 63% | 2195 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 29,008 psi | 48% | 2034 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,466 psi | 67% | 2162 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,230 psi | 60% | 2178 fps | 98.5% |
| Hodgdon CFE223 | 37.2 gr | 80% | 39,639 psi | 66% | 2280 fps | 97% |
| Hodgdon H322 | <<locked>> | 80% | 43,598 psi | 72% | 2254 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 44,251 psi | 74% | 2274 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 39,378 psi | 65% | 2221 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 36,477 psi | 61% | 2159 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 32,793 psi | 54% | 2116 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,706 psi | 54% | 2129 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,585 psi | 43% | 1260 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,230 psi | 59% | 2119 fps | 96.8% |
| IMR 3031 | <<locked>> | 80% | 35,331 psi | 59% | 2165 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 34,679 psi | 58% | 2096 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 90% | 47,964 psi | 80% | 2287 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 45,832 psi | 76% | 2198 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 49,647 psi | 82% | 2346 fps | 95.3% |
| IMR 4831 | <<locked>> | 96% | 35,926 psi | 60% | 2201 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 32,967 psi | 55% | 2113 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 38,189 psi | 63% | 2162 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 80% | 42,496 psi | 71% | 2234 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 34,476 psi | 57% | 2136 fps | 98.9% |
| Lovex S060 | <<locked>> | 80% | 37,304 psi | 62% | 2106 fps | 96.9% |
| Lovex S062 | <<locked>> | 80% | 32,082 psi | 53% | 2057 fps | 96.8% |
| Lovex S065 | <<locked>> | 96% | 42,815 psi | 71% | 2254 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 50,778 psi | 84% | 2280 fps | 100% |
| Norma 201 | <<locked>> | 80% | 35,679 psi | 59% | 2116 fps | 97.8% |
| Norma 202 | <<locked>> | 80% | 35,650 psi | 59% | 2129 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 31,662 psi | 53% | 2080 fps | 95.1% |
| Norma URP | <<locked>> | 96% | 37,855 psi | 63% | 2244 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 82% | 33,431 psi | 56% | 2133 fps | 95.3% |
| Ramshot TAC | <<locked>> | 82% | 40,625 psi | 67% | 2201 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,159 psi | 62% | 2178 fps | 96.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,408 psi | 69% | 2201 fps | 97.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,701 psi | 43% | 1293 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,018 psi | 71% | 2238 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 45,469 psi | 76% | 2293 fps | 95.2% |
| ReloadSwiss RS 52 | 35.3 gr | 80% | 33,315 psi | 55% | 2165 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 27,731 psi | 46% | 2044 fps | 95.8% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 39,610 psi | 66% | 2303 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 39,305 psi | 65% | 2159 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 33,924 psi | 56% | 2073 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 82% | 29,138 psi | 48% | 2034 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 96% | 42,815 psi | 71% | 2254 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,476 psi | 57% | 2136 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 32,082 psi | 53% | 2057 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,542 psi | 76% | 2251 fps | 99.2% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 48,066 psi | 80% | 2320 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 32,561 psi | 54% | 2119 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,788 psi | 76% | 2244 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 38,392 psi | 64% | 2175 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,012 psi | 58% | 2126 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,536 psi | 62% | 2090 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,647 psi | 51% | 1978 fps | 99.2% |
| Somchem S321 | <<locked>> | 80% | 40,727 psi | 68% | 2228 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 36,898 psi | 61% | 2093 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 35,607 psi | 59% | 2133 fps | 96.3% |
| Somchem S355 | <<locked>> | 82% | 30,371 psi | 50% | 2041 fps | 95.2% |
| Somchem S365 | <<locked>> | 90% | 28,079 psi | 47% | 2060 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 42,569 psi | 71% | 2152 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,550 psi | 62% | 2093 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,735 psi | 54% | 2073 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,736 psi | 56% | 2077 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 27,122 psi | 45% | 1952 fps | 95.4% |
| Vihtavuori N160 | <<locked>> | 94% | 37,463 psi | 62% | 2201 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 38,101 psi | 63% | 2159 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 80% | 32,300 psi | 54% | 2067 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 96% | 38,957 psi | 65% | 2251 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 31,633 psi | 53% | 2054 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 36,796 psi | 61% | 2192 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,895 psi | 56% | 2123 fps | 96.6% |
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 | Sako Hammerhead. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,533 fps; across all powders the maximum-charge window runs from 1,414 fps to 2,533 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 1:14.0 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. with the .308 | 200gr | Sako Hammerhead 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.