Load Specifications
Bullet Manufacturer:SAKO
Bullet Weight:220 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 CR load data
Case Length (l3):2"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:53 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:13.0
Load data in caliber .300 CR with .308 | 220gr | Sako Hammerhead bullet and 104 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 LEVERevolution.
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% | 53,795 psi | 86% | 2169 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 54,143 psi | 87% | 2247 fps | 99.4% |
| Accurate 2230 | <<locked>> | 82% | 55,187 psi | 88% | 2260 fps | 99.7% |
| Accurate 2460 | <<locked>> | 88% | 55,492 psi | 89% | 2228 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 53,621 psi | 86% | 2218 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 53,316 psi | 85% | 2241 fps | 100% |
| Accurate 2700 | <<locked>> | 96% | 55,172 psi | 88% | 2211 fps | 96.1% |
| Accurate 4064 | <<locked>> | 98% | 53,432 psi | 86% | 2254 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,177 psi | 68% | 2178 fps | 97.6% |
| Accurate LT-30 | <<locked>> | 84% | 54,215 psi | 87% | 2123 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 54,679 psi | 88% | 2142 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 56,130 psi | 90% | 2287 fps | 99.9% |
| ADI AR 2207 | <<locked>> | 82% | 55,898 psi | 90% | 2136 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 53,476 psi | 86% | 2241 fps | 99.4% |
| ADI AR 2219 | <<locked>> | 84% | 54,534 psi | 87% | 2228 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 55,477 psi | 89% | 2251 fps | 100% |
| Alliant AR-Comp | <<locked>> | 92% | 54,737 psi | 88% | 2224 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 53,679 psi | 86% | 2293 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 55,521 psi | 89% | 2382 fps | 99.7% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 55,898 psi | 90% | 2297 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 86% | 53,954 psi | 87% | 2172 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 53,171 psi | 85% | 2274 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,192 psi | 69% | 2185 fps | 97.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,414 psi | 79% | 2310 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 56,391 psi | 90% | 2165 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 55,434 psi | 89% | 2300 fps | 99.4% |
| Bofors RP3ᴾ | <<locked>> | 100% | 55,985 psi | 90% | 2310 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 90% | 54,549 psi | 87% | 2198 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 92% | 53,809 psi | 86% | 2277 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 90% | 55,956 psi | 90% | 2356 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 88% | 56,347 psi | 90% | 2244 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 54,027 psi | 87% | 2234 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 54,157 psi | 87% | 2277 fps | 98.9% |
| Hodgdon H4198 | <<locked>> | 82% | 56,420 psi | 90% | 2162 fps | 100% |
| Hodgdon H4895 | <<locked>> | 92% | 53,127 psi | 85% | 2257 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,218 psi | 63% | 2093 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 54,737 psi | 88% | 2320 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,505 psi | 55% | 1302 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 54,360 psi | 87% | 2254 fps | 99.9% |
| IMR 3031 | <<locked>> | 94% | 55,274 psi | 89% | 2274 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 56,318 psi | 90% | 2264 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 94% | 53,998 psi | 87% | 2211 fps | 96.8% |
| IMR 4198 | <<locked>> | 86% | 54,824 psi | 88% | 2139 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 52,634 psi | 84% | 2224 fps | 96.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,524 psi | 65% | 2136 fps | 97.2% |
| IMR 4895 | <<locked>> | 96% | 54,505 psi | 87% | 2300 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 92% | 55,477 psi | 89% | 2251 fps | 100% |
| Lovex D073.4 | <<locked>> | 82% | 55,666 psi | 89% | 2238 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 55,550 psi | 89% | 2241 fps | 100% |
| Lovex D073.6 | <<locked>> | 94% | 54,882 psi | 88% | 2267 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 53,185 psi | 85% | 2188 fps | 99.7% |
| Lovex S062 | <<locked>> | 98% | 55,651 psi | 89% | 2264 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 47,950 psi | 77% | 2175 fps | 97.2% |
| Norma 200 | <<locked>> | 82% | 53,737 psi | 86% | 2149 fps | 100% |
| Norma 201 | <<locked>> | 94% | 54,810 psi | 88% | 2241 fps | 100% |
| Norma 202 | <<locked>> | 94% | 55,100 psi | 88% | 2244 fps | 100% |
| Norma 203B | <<locked>> | 98% | 55,782 psi | 89% | 2303 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 42,902 psi | 69% | 2178 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 98% | 56,318 psi | 90% | 2329 fps | 99.9% |
| Ramshot TAC | <<locked>> | 92% | 56,202 psi | 90% | 2267 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 92% | 54,795 psi | 88% | 2280 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 88% | 53,330 psi | 86% | 2215 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,954 psi | 56% | 1339 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 55,332 psi | 89% | 2238 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 54,969 psi | 88% | 2260 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 56,362 psi | 90% | 2369 fps | 99.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 52,779 psi | 85% | 2356 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,090 psi | 67% | 2192 fps | 97.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 43,816 psi | 70% | 2208 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 92% | 55,869 psi | 90% | 2224 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 54,926 psi | 88% | 2234 fps | 100% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 52,257 psi | 84% | 2260 fps | 99.9% |
| Shooters World AR Plus | <<locked>> | 82% | 55,666 psi | 89% | 2238 fps | 100% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 47,950 psi | 77% | 2175 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 94% | 54,882 psi | 88% | 2267 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 55,651 psi | 89% | 2264 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 55,303 psi | 89% | 2215 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 55,376 psi | 89% | 1923 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 54,534 psi | 87% | 2234 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 53,896 psi | 86% | 2310 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 55,100 psi | 88% | 2188 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 53,983 psi | 87% | 2244 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 54,056 psi | 87% | 2260 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 54,128 psi | 87% | 2159 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 53,301 psi | 85% | 2156 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 48,182 psi | 77% | 2139 fps | 95.7% |
| Somchem S321 | <<locked>> | 88% | 52,968 psi | 85% | 2241 fps | 100% |
| Somchem S335 | <<locked>> | 94% | 56,101 psi | 90% | 2195 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 53,272 psi | 85% | 2241 fps | 99.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 52,765 psi | 85% | 2257 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,130 psi | 61% | 2139 fps | 99.2% |
| Vihtavuori N120 | <<locked>> | 82% | 55,782 psi | 89% | 2093 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 53,882 psi | 86% | 2133 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 53,925 psi | 86% | 2149 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 53,766 psi | 86% | 2208 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 55,259 psi | 89% | 2224 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 51,271 psi | 82% | 2208 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,208 psi | 72% | 2175 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 92% | 56,202 psi | 90% | 2251 fps | 100% |
| Vihtavuori N540 | <<locked>> | 96% | 53,316 psi | 85% | 2228 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,903 psi | 70% | 2182 fps | 97.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,354 psi | 74% | 2169 fps | 99.4% |
| Winchester 748 | <<locked>> | 92% | 55,129 psi | 88% | 2290 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 53,635 psi | 86% | 2270 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% | 39,610 psi | 64% | 1991 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 50,662 psi | 81% | 2201 fps | 99.1% |
| Accurate 2230 | <<locked>> | 80% | 51,213 psi | 82% | 2215 fps | 99.4% |
| Accurate 2460 | <<locked>> | 80% | 42,801 psi | 69% | 2073 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,140 psi | 52% | 1929 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 37,942 psi | 61% | 2037 fps | 99.7% |
| Accurate 2700 | <<locked>> | 94% | 51,706 psi | 83% | 2172 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 30,385 psi | 49% | 1916 fps | 99.3% |
| Accurate 4350 | <<locked>> | 94% | 34,345 psi | 55% | 2047 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 48,022 psi | 77% | 2054 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,414 psi | 78% | 2070 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 36,463 psi | 58% | 2005 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 80% | 52,736 psi | 85% | 2103 fps | 100% |
| ADI AR 2208 | <<locked>> | 82% | 33,011 psi | 53% | 1926 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 47,703 psi | 76% | 2149 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,435 psi | 62% | 2014 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 37,130 psi | 60% | 2014 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,222 psi | 71% | 2165 fps | 99.3% |
| Alliant Power Pro 2000-MR | 33.7 gr | 82% | 34,882 psi | 56% | 2051 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,921 psi | 48% | 1903 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,962 psi | 72% | 2067 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 32,460 psi | 52% | 1949 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 94% | 36,027 psi | 58% | 2057 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 86% | 31,430 psi | 50% | 1991 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,702 psi | 75% | 2057 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 35,085 psi | 56% | 1998 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 29,008 psi | 47% | 1900 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,509 psi | 65% | 2011 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,158 psi | 58% | 2028 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,479 psi | 63% | 2123 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 80% | 43,497 psi | 70% | 2093 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 44,222 psi | 71% | 2116 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 36,767 psi | 59% | 2028 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 52,881 psi | 85% | 2123 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 36,651 psi | 59% | 2014 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 30,748 psi | 49% | 1932 fps | 95.6% |
| Hodgdon LEVERevolution | 32.2 gr | 80% | 32,474 psi | 52% | 1982 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,628 psi | 41% | 1161 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,404 psi | 57% | 1978 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 35,273 psi | 57% | 2014 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 32,648 psi | 52% | 1913 fps | 95.5% |
| IMR 4166 Enduron | <<locked>> | 90% | 47,964 psi | 77% | 2133 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 46,006 psi | 74% | 2041 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 46,789 psi | 75% | 2146 fps | 95.2% |
| IMR 4831 | <<locked>> | 94% | 33,605 psi | 54% | 2011 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 33,141 psi | 53% | 1975 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 80% | 38,435 psi | 62% | 2014 fps | 98.8% |
| Lovex D073.4 | <<locked>> | 80% | 52,112 psi | 84% | 2195 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 42,496 psi | 68% | 2077 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 34,403 psi | 55% | 1988 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 37,289 psi | 60% | 1959 fps | 97.4% |
| Lovex S062 | <<locked>> | 80% | 32,053 psi | 51% | 1916 fps | 97.4% |
| Lovex S065 | <<locked>> | 94% | 40,234 psi | 65% | 2060 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 50,734 psi | 81% | 2116 fps | 100% |
| Norma 201 | <<locked>> | 80% | 35,708 psi | 57% | 1969 fps | 98.3% |
| Norma 202 | <<locked>> | 80% | 35,737 psi | 57% | 1982 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 31,836 psi | 51% | 1942 fps | 95.9% |
| Norma URP | <<locked>> | 94% | 35,650 psi | 57% | 2054 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 31,299 psi | 50% | 1946 fps | 95.2% |
| Ramshot TAC | <<locked>> | 82% | 40,640 psi | 65% | 2054 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,115 psi | 60% | 2028 fps | 97.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,350 psi | 66% | 2047 fps | 98.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,817 psi | 41% | 1191 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,120 psi | 69% | 2083 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 42,641 psi | 68% | 2096 fps | 95.1% |
| ReloadSwiss RS 52 | 31.9 gr | 80% | 33,243 psi | 53% | 2018 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 27,789 psi | 45% | 1913 fps | 96.7% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 37,043 psi | 59% | 2106 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 41,046 psi | 66% | 2162 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 39,320 psi | 63% | 2008 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 34,113 psi | 55% | 1936 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 82% | 29,211 psi | 47% | 1896 fps | 95.8% |
| Shooters World AR Plus | <<locked>> | 80% | 52,112 psi | 84% | 2195 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 94% | 40,234 psi | 65% | 2060 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,403 psi | 55% | 1988 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 32,053 psi | 51% | 1916 fps | 97.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,469 psi | 73% | 2093 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 52,315 psi | 84% | 1890 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 48,037 psi | 77% | 2159 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 30,690 psi | 49% | 1936 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,818 psi | 73% | 2080 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 38,334 psi | 61% | 2024 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,940 psi | 56% | 1978 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,536 psi | 60% | 1942 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,661 psi | 49% | 1841 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 44,904 psi | 72% | 2100 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 40,770 psi | 65% | 2077 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 36,927 psi | 59% | 1949 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 35,621 psi | 57% | 1988 fps | 96.9% |
| Somchem S355 | <<locked>> | 80% | 28,616 psi | 46% | 1867 fps | 95.2% |
| Somchem S365 | <<locked>> | 88% | 26,440 psi | 42% | 1886 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 52,663 psi | 84% | 2060 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 42,583 psi | 68% | 1998 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,565 psi | 60% | 1942 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,750 psi | 53% | 1929 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,547 psi | 54% | 1929 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 26,977 psi | 43% | 1818 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 35,172 psi | 56% | 2011 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 38,145 psi | 61% | 2008 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 80% | 32,184 psi | 52% | 1923 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 94% | 36,492 psi | 59% | 2060 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 31,517 psi | 51% | 1916 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 36,840 psi | 59% | 2041 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,750 psi | 54% | 1978 fps | 97.1% |
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 104 powders for .300 CR loaded with the .308 | 220gr | Sako Hammerhead. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,382 fps; across all powders the maximum-charge window runs from 1,302 fps to 2,382 fps. Accurate 4350 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder- TS 15.5, Alliant Reloder-16 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 LEVERevolution rank at the top here: for .300 CR with the .308 | 220gr | 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.