Load Specifications
Load data in caliber .300 CR with .308 | 210gr | Berger LRBTHP bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 2000-MR 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 1680 | <<locked>> | 82% | 56,405 psi | 90% | 2172 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 56,057 psi | 90% | 2231 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 53,780 psi | 86% | 2274 fps | 98.9% |
| Accurate 2230 | <<locked>> | 84% | 54,331 psi | 87% | 2287 fps | 99.2% |
| Accurate 2460 | <<locked>> | 90% | 54,679 psi | 88% | 2260 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 55,912 psi | 90% | 2283 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 56,130 psi | 90% | 2310 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 51,808 psi | 83% | 2277 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 54,114 psi | 87% | 2159 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 54,578 psi | 88% | 2175 fps | 100% |
| ADI AR 2206H | <<locked>> | 96% | 55,056 psi | 88% | 2310 fps | 99.5% |
| ADI AR 2207 | <<locked>> | 84% | 55,245 psi | 89% | 2172 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 52,605 psi | 84% | 2260 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 86% | 53,592 psi | 86% | 2257 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 54,911 psi | 88% | 2277 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 94% | 53,374 psi | 86% | 2257 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 56,231 psi | 90% | 2362 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 54,462 psi | 87% | 2398 fps | 99% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 51,213 psi | 82% | 2280 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 88% | 53,316 psi | 85% | 2208 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 55,695 psi | 89% | 2339 fps | 99.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,281 psi | 73% | 2277 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 84% | 56,275 psi | 90% | 2188 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 56,159 psi | 90% | 2198 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 54,578 psi | 88% | 2323 fps | 98.8% |
| Bofors RP3ᴾ | <<locked>> | 100% | 51,082 psi | 82% | 2290 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 92% | 54,114 psi | 87% | 2228 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 96% | 56,376 psi | 90% | 2343 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 92% | 54,810 psi | 88% | 2379 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 90% | 55,492 psi | 89% | 2277 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 53,316 psi | 85% | 2267 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 53,214 psi | 85% | 2300 fps | 98.1% |
| Hodgdon H4198 | <<locked>> | 84% | 56,217 psi | 90% | 2195 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 55,521 psi | 89% | 2320 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 36,187 psi | 58% | 2064 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 53,650 psi | 86% | 2346 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,069 psi | 55% | 1316 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 53,882 psi | 86% | 2283 fps | 99.6% |
| IMR 3031 | <<locked>> | 96% | 54,099 psi | 87% | 2306 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 55,463 psi | 89% | 2287 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 96% | 53,853 psi | 86% | 2234 fps | 95.8% |
| IMR 4198 | <<locked>> | 88% | 54,331 psi | 87% | 2175 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 53,301 psi | 85% | 2323 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 94% | 54,911 psi | 88% | 2277 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 84% | 55,274 psi | 89% | 2270 fps | 100% |
| Lovex D073.5 | <<locked>> | 90% | 54,839 psi | 88% | 2270 fps | 100% |
| Lovex D073.6 | <<locked>> | 96% | 53,548 psi | 86% | 2293 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 55,825 psi | 90% | 2251 fps | 99.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 54,549 psi | 87% | 2287 fps | 99.9% |
| Norma 200 | <<locked>> | 84% | 53,490 psi | 86% | 2188 fps | 100% |
| Norma 201 | <<locked>> | 96% | 53,737 psi | 86% | 2267 fps | 99.9% |
| Norma 202 | <<locked>> | 96% | 53,867 psi | 86% | 2274 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 54,665 psi | 88% | 2329 fps | 99.5% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 55,100 psi | 88% | 2349 fps | 99.4% |
| Ramshot TAC | <<locked>> | 94% | 55,593 psi | 89% | 2290 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 94% | 53,867 psi | 86% | 2303 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 90% | 52,939 psi | 85% | 2241 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,098 psi | 55% | 1345 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 54,708 psi | 88% | 2267 fps | 100% |
| ReloadSwiss RS 50ᴾ | <<locked>> | 100% | 54,317 psi | 87% | 2283 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 54,984 psi | 88% | 2388 fps | 99.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,428 psi | 78% | 2333 fps | 100% |
| Rottweil R 901 | <<locked>> | 94% | 54,940 psi | 88% | 2254 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 53,882 psi | 86% | 2260 fps | 99.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 47,500 psi | 76% | 2238 fps | 99.2% |
| Shooters World AR Plus | <<locked>> | 84% | 55,274 psi | 89% | 2270 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 96% | 53,548 psi | 86% | 2293 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 54,549 psi | 87% | 2287 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 55,347 psi | 89% | 2247 fps | 99.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 55,477 psi | 89% | 1959 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 54,201 psi | 87% | 2270 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 49,617 psi | 80% | 2290 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 54,505 psi | 87% | 2224 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 53,142 psi | 85% | 2267 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 53,621 psi | 86% | 2290 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 53,592 psi | 86% | 2188 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 52,417 psi | 84% | 2185 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 55,956 psi | 90% | 2313 fps | 100% |
| Somchem S335 | <<locked>> | 96% | 55,114 psi | 88% | 2221 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 55,999 psi | 90% | 2306 fps | 99.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 48,704 psi | 78% | 2241 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 34,853 psi | 56% | 2103 fps | 97.6% |
| Vihtavuori N120 | <<locked>> | 84% | 55,172 psi | 88% | 2129 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 53,577 psi | 86% | 2169 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 56,420 psi | 90% | 2211 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 55,999 psi | 90% | 2274 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 54,172 psi | 87% | 2251 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,891 psi | 75% | 2188 fps | 99.7% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 41,539 psi | 67% | 2149 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 94% | 55,259 psi | 89% | 2277 fps | 99.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 55,970 psi | 90% | 2293 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,873 psi | 69% | 2142 fps | 98.1% |
| Winchester 748 | <<locked>> | 94% | 53,853 psi | 86% | 2316 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 98% | 56,231 psi | 90% | 2336 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 1680 | <<locked>> | 80% | 53,214 psi | 85% | 2136 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 36,796 psi | 59% | 1988 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 47,253 psi | 76% | 2185 fps | 98% |
| Accurate 2230 | <<locked>> | 80% | 47,239 psi | 76% | 2195 fps | 98.3% |
| Accurate 2460 | <<locked>> | 80% | 39,595 psi | 63% | 2064 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 29,066 psi | 47% | 1909 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 34,882 psi | 56% | 2021 fps | 98.8% |
| Accurate 4064 | <<locked>> | 80% | 27,557 psi | 44% | 1893 fps | 98% |
| Accurate LT-30 | <<locked>> | 80% | 45,368 psi | 73% | 2054 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 45,745 psi | 73% | 2067 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 33,721 psi | 54% | 1985 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 48,979 psi | 79% | 2103 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 36,796 psi | 59% | 2028 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 43,874 psi | 70% | 2136 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,636 psi | 57% | 1998 fps | 97.4% |
| Alliant AR-Comp | <<locked>> | 80% | 33,823 psi | 54% | 2005 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,756 psi | 65% | 2149 fps | 98.2% |
| Alliant Power Pro 2000-MR | 34.8 gr | 88% | 39,378 psi | 63% | 2162 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 30,922 psi | 50% | 1959 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,916 psi | 67% | 2067 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 35,998 psi | 58% | 2051 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 90% | 32,895 psi | 53% | 2047 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 50,067 psi | 80% | 2119 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,656 psi | 70% | 2051 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 36,912 psi | 59% | 2060 fps | 95.1% |
| Bofors RP3 | <<locked>> | 84% | 30,124 psi | 48% | 1955 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,782 psi | 61% | 1998 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,025 psi | 53% | 2005 fps | 97.4% |
| Hodgdon CFE223 | 32.3 gr | 80% | 36,376 psi | 58% | 2096 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 40,205 psi | 64% | 2083 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 40,741 psi | 65% | 2100 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 92% | 41,075 psi | 66% | 2129 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 49,966 psi | 80% | 2123 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 33,910 psi | 54% | 1995 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 34,113 psi | 55% | 2024 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 30,110 psi | 48% | 1959 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,266 psi | 41% | 1175 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 32,808 psi | 53% | 1959 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 32,430 psi | 52% | 2001 fps | 99.8% |
| IMR 4064 | <<locked>> | 86% | 36,318 psi | 58% | 2011 fps | 95.7% |
| IMR 4166 Enduron | <<locked>> | 94% | 50,488 psi | 81% | 2192 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 42,960 psi | 69% | 2037 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 32,314 psi | 52% | 1991 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 35,636 psi | 57% | 1998 fps | 97.4% |
| Lovex D073.4 | <<locked>> | 80% | 48,095 psi | 77% | 2185 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 39,059 psi | 63% | 2060 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 31,444 psi | 50% | 1969 fps | 98% |
| Lovex S060 | <<locked>> | 80% | 35,012 psi | 56% | 1946 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 29,718 psi | 48% | 1900 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 47,108 psi | 76% | 2113 fps | 100% |
| Norma 201 | <<locked>> | 80% | 32,953 psi | 53% | 1949 fps | 96.8% |
| Norma 202 | <<locked>> | 80% | 32,866 psi | 53% | 1965 fps | 98.9% |
| Norma 203B | <<locked>> | 84% | 33,243 psi | 53% | 2001 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 86% | 35,027 psi | 56% | 2047 fps | 95.5% |
| Ramshot TAC | <<locked>> | 86% | 43,033 psi | 69% | 2119 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 34,142 psi | 55% | 2005 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 38,725 psi | 62% | 2034 fps | 96.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,411 psi | 41% | 1204 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,726 psi | 64% | 2067 fps | 99.3% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 47,558 psi | 76% | 2195 fps | 95.2% |
| ReloadSwiss RS 52 | 32.2 gr | 84% | 34,838 psi | 56% | 2080 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 27,354 psi | 44% | 1919 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 36,622 psi | 59% | 1998 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 80% | 31,430 psi | 50% | 1913 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 86% | 30,081 psi | 48% | 1949 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 48,095 psi | 77% | 2185 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,444 psi | 50% | 1969 fps | 98% |
| Shooters World Precision | <<locked>> | 80% | 29,718 psi | 48% | 1900 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,177 psi | 68% | 2077 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 49,734 psi | 80% | 1900 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,483 psi | 71% | 2146 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 34,069 psi | 55% | 2034 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,641 psi | 68% | 2077 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 40,451 psi | 65% | 2090 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 34,330 psi | 55% | 1998 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,041 psi | 56% | 1932 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,427 psi | 46% | 1827 fps | 98.5% |
| Somchem S321 | <<locked>> | 80% | 37,565 psi | 60% | 2057 fps | 98.2% |
| Somchem S335 | <<locked>> | 80% | 34,185 psi | 55% | 1936 fps | 99.5% |
| Somchem S341 | <<locked>> | 82% | 35,070 psi | 56% | 2005 fps | 95.7% |
| Somchem S355 | <<locked>> | 86% | 31,575 psi | 51% | 1962 fps | 95.4% |
| Somchem S365 | <<locked>> | 94% | 29,109 psi | 47% | 1975 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 48,950 psi | 78% | 2064 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 39,827 psi | 64% | 1998 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,954 psi | 56% | 1936 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 30,008 psi | 48% | 1916 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 30,850 psi | 49% | 1913 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 84% | 28,166 psi | 45% | 1873 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 98% | 38,798 psi | 62% | 2103 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 35,331 psi | 57% | 1991 fps | 97.5% |
| Vihtavuori N540 | <<locked>> | 80% | 29,675 psi | 48% | 1906 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 33,185 psi | 53% | 1972 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 34,040 psi | 55% | 2024 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 80% | 31,256 psi | 50% | 1955 fps | 95.2% |
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 .300 CR loaded with the .308 | 210gr | Berger LRBTHP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,398 fps; across all powders the maximum-charge window runs from 1,316 fps to 2,398 fps. Accurate 2495 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 (430 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 210.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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. Hodgdon CFE223, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .300 CR with the .308 | 210gr | Berger LRBTHP 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.