Load Specifications
Load data in caliber .300 CR with .308 | 180gr | Barnes MRX BT bullet and 88 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 1200-R and Winchester 748.
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 1680 | <<locked>> | 84% | 54,853 psi | 88% | 2359 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 56,217 psi | 90% | 2451 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 54,926 psi | 88% | 2493 fps | 97.8% |
| Accurate 2230 | <<locked>> | 88% | 55,347 psi | 89% | 2503 fps | 98.2% |
| Accurate 2460 | <<locked>> | 94% | 55,027 psi | 88% | 2474 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 47,587 psi | 76% | 2408 fps | 100% |
| Accurate 2520 | <<locked>> | 98% | 55,956 psi | 90% | 2523 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 44,193 psi | 71% | 2392 fps | 99.8% |
| Accurate LT-30 | <<locked>> | 90% | 55,637 psi | 89% | 2379 fps | 100% |
| Accurate LT-32 | <<locked>> | 90% | 56,072 psi | 90% | 2395 fps | 100% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 55,332 psi | 89% | 2520 fps | 98.6% |
| ADI AR 2207 | <<locked>> | 88% | 56,043 psi | 90% | 2398 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 46,876 psi | 75% | 2379 fps | 96.4% |
| ADI AR 2219 | <<locked>> | 90% | 54,534 psi | 87% | 2480 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 98% | 55,042 psi | 88% | 2484 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 98% | 52,924 psi | 85% | 2477 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 56,202 psi | 90% | 2579 fps | 99.2% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 51,721 psi | 83% | 2552 fps | 97% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,585 psi | 71% | 2392 fps | 97.8% |
| Alliant Reloder-10x | <<locked>> | 92% | 53,272 psi | 85% | 2425 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 48,878 psi | 78% | 2451 fps | 97.2% |
| Alliant Reloder-7 | <<locked>> | 86% | 54,186 psi | 87% | 2379 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 54,099 psi | 87% | 2379 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 55,143 psi | 88% | 2530 fps | 97.6% |
| Bofors RP3ᴾ | <<locked>> | 100% | 43,816 psi | 70% | 2392 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 96% | 54,781 psi | 88% | 2438 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 98% | 52,968 psi | 85% | 2513 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 96% | 55,317 psi | 89% | 2592 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 92% | 52,750 psi | 85% | 2461 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 54,041 psi | 87% | 2487 fps | 100% |
| Hodgdon H4198 | <<locked>> | 86% | 54,317 psi | 87% | 2379 fps | 100% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 55,651 psi | 89% | 2530 fps | 99.1% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,227 psi | 81% | 2503 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,938 psi | 53% | 1430 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 54,375 psi | 87% | 2490 fps | 98.8% |
| IMR 3031ᴾ | <<locked>> | 100% | 53,476 psi | 86% | 2523 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 49,298 psi | 79% | 2405 fps | 97.2% |
| IMR 4198 | <<locked>> | 92% | 54,868 psi | 88% | 2395 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 54,201 psi | 87% | 2320 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 49,980 psi | 80% | 2480 fps | 98% |
| IMR 8208 XBR | <<locked>> | 98% | 55,042 psi | 88% | 2484 fps | 99.4% |
| Lovex D073.4 | <<locked>> | 88% | 55,811 psi | 89% | 2487 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 94% | 55,042 psi | 88% | 2480 fps | 99.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 53,200 psi | 85% | 2500 fps | 99.9% |
| Lovex S053 | <<locked>> | 84% | 55,927 psi | 90% | 2303 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 53,461 psi | 86% | 2418 fps | 98.3% |
| Lovex S062ᴾ | <<locked>> | 100% | 47,950 psi | 77% | 2408 fps | 98.7% |
| Norma 200 | <<locked>> | 88% | 53,505 psi | 86% | 2405 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 53,882 psi | 86% | 2474 fps | 99.3% |
| Norma 202ᴾ | <<locked>> | 100% | 54,012 psi | 87% | 2487 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 47,877 psi | 77% | 2441 fps | 97.6% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 48,515 psi | 78% | 2461 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 98% | 54,520 psi | 87% | 2513 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 94% | 53,795 psi | 86% | 2448 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,098 psi | 53% | 1467 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 54,244 psi | 87% | 2356 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 55,477 psi | 89% | 2487 fps | 99.9% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 51,663 psi | 83% | 2552 fps | 97.7% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,743 psi | 69% | 2428 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 98% | 54,810 psi | 88% | 2464 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 50,531 psi | 81% | 2421 fps | 98.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 40,712 psi | 65% | 2333 fps | 96.7% |
| Shooters World AR Plus | <<locked>> | 88% | 55,811 psi | 89% | 2487 fps | 99.9% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 53,200 psi | 85% | 2500 fps | 99.9% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 47,950 psi | 77% | 2408 fps | 98.7% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 56,231 psi | 90% | 2457 fps | 99.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 56,318 psi | 90% | 2165 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 54,708 psi | 88% | 2487 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 43,859 psi | 70% | 2395 fps | 96.3% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 54,650 psi | 88% | 2441 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 98% | 53,708 psi | 86% | 2470 fps | 96.4% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 53,969 psi | 87% | 2497 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 53,983 psi | 87% | 2398 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 46,224 psi | 74% | 2310 fps | 100% |
| Somchem S321 | <<locked>> | 94% | 52,678 psi | 84% | 2477 fps | 99.3% |
| Somchem S335ᴾ | <<locked>> | 100% | 55,550 psi | 89% | 2434 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 52,895 psi | 85% | 2467 fps | 98.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 42,409 psi | 68% | 2346 fps | 96.9% |
| Vihtavuori N120 | <<locked>> | 88% | 56,014 psi | 90% | 2352 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 53,693 psi | 86% | 2379 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 53,403 psi | 86% | 2388 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 48,617 psi | 78% | 2405 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 51,198 psi | 82% | 2425 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,756 psi | 65% | 2293 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 98% | 55,883 psi | 90% | 2487 fps | 99.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 49,095 psi | 79% | 2418 fps | 99.9% |
| Winchester 748 | <<locked>> | 98% | 54,027 psi | 87% | 2530 fps | 99.7% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 53,026 psi | 85% | 2503 fps | 98.7% |
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% | 48,109 psi | 77% | 2280 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 31,879 psi | 51% | 2090 fps | 99.3% |
| Accurate 2200 | <<locked>> | 80% | 42,148 psi | 68% | 2300 fps | 95.1% |
| Accurate 2230 | <<locked>> | 80% | 41,582 psi | 67% | 2300 fps | 95.5% |
| Accurate 2460 | <<locked>> | 80% | 34,200 psi | 55% | 2159 fps | 97.7% |
| Accurate 2495 | <<locked>> | 80% | 24,062 psi | 39% | 1982 fps | 97.6% |
| Accurate 2520 | <<locked>> | 80% | 29,689 psi | 48% | 2103 fps | 95.8% |
| Accurate 4064 | <<locked>> | 84% | 26,136 psi | 42% | 2044 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 40,988 psi | 66% | 2178 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 80% | 41,365 psi | 66% | 2188 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 88% | 37,898 psi | 61% | 2247 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 43,671 psi | 70% | 2247 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 41,437 psi | 66% | 2290 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 38,653 psi | 62% | 2254 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 35,650 psi | 57% | 2182 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 29,196 psi | 47% | 2106 fps | 100% |
| Alliant Power Pro 1200-R | 30.7 gr | 80% | 35,230 psi | 56% | 2241 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 45,339 psi | 73% | 2448 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 34,635 psi | 56% | 2215 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,825 psi | 59% | 2188 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 40,335 psi | 65% | 2313 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,744 psi | 72% | 2257 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,305 psi | 63% | 2175 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 45,078 psi | 72% | 2385 fps | 95.5% |
| Bofors RP3 | <<locked>> | 94% | 35,752 psi | 57% | 2254 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 33,808 psi | 54% | 2100 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 84% | 32,735 psi | 52% | 2182 fps | 95.6% |
| Hodgdon CFE223 | 36.8 gr | 88% | 41,858 psi | 67% | 2382 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 35,433 psi | 57% | 2195 fps | 99% |
| Hodgdon H335 | <<locked>> | 80% | 35,636 psi | 57% | 2205 fps | 98.3% |
| Hodgdon H4198 | <<locked>> | 80% | 45,237 psi | 73% | 2257 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 88% | 38,029 psi | 61% | 2257 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 36,245 psi | 58% | 2264 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,526 psi | 39% | 1280 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 37,188 psi | 60% | 2221 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 27,949 psi | 45% | 2087 fps | 97.8% |
| IMR 4064 | <<locked>> | 94% | 40,669 psi | 65% | 2270 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 38,609 psi | 62% | 2175 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 51,039 psi | 82% | 2283 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 38,537 psi | 62% | 2297 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 84% | 35,650 psi | 57% | 2182 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 41,901 psi | 67% | 2297 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 33,910 psi | 54% | 2156 fps | 96.4% |
| Lovex D073.6 | <<locked>> | 82% | 28,326 psi | 45% | 2083 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 50,212 psi | 81% | 2238 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 39,682 psi | 64% | 2208 fps | 95.4% |
| Lovex S062 | <<locked>> | 88% | 32,895 psi | 53% | 2146 fps | 95% |
| Norma 200 | <<locked>> | 80% | 41,568 psi | 67% | 2247 fps | 100% |
| Norma 201 | <<locked>> | 86% | 34,577 psi | 55% | 2165 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 28,355 psi | 45% | 2051 fps | 96% |
| Norma 203B | <<locked>> | 94% | 39,479 psi | 63% | 2303 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 94% | 39,929 psi | 64% | 2316 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 88% | 38,957 psi | 62% | 2277 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 41,727 psi | 67% | 2270 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,482 psi | 39% | 1309 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 51,213 psi | 82% | 2320 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,114 psi | 56% | 2169 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 42,134 psi | 68% | 2402 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 33,011 psi | 53% | 2224 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 31,792 psi | 51% | 2090 fps | 97% |
| Rottweil R 902 | <<locked>> | 88% | 34,969 psi | 56% | 2165 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 96% | 35,679 psi | 57% | 2244 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 41,901 psi | 67% | 2297 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 28,326 psi | 45% | 2083 fps | 95.2% |
| Shooters World Precision | <<locked>> | 88% | 32,895 psi | 53% | 2146 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 37,202 psi | 60% | 2175 fps | 95.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,774 psi | 73% | 2047 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,117 psi | 63% | 2260 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 41,118 psi | 66% | 2346 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,652 psi | 60% | 2198 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 50,169 psi | 80% | 2421 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 38,914 psi | 62% | 2267 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,864 psi | 49% | 2028 fps | 96.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 24,903 psi | 40% | 1909 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 32,880 psi | 53% | 2152 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 30,081 psi | 48% | 2034 fps | 97.5% |
| Somchem S341 | <<locked>> | 90% | 40,248 psi | 65% | 2280 fps | 95.4% |
| Somchem S355 | <<locked>> | 96% | 37,318 psi | 60% | 2257 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 43,772 psi | 70% | 2205 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,288 psi | 57% | 2116 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 80% | 30,719 psi | 49% | 2041 fps | 99% |
| Vihtavuori N135 | <<locked>> | 80% | 25,614 psi | 41% | 1998 fps | 98% |
| Vihtavuori N140 | <<locked>> | 80% | 26,948 psi | 43% | 2001 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 94% | 33,504 psi | 54% | 2159 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 84% | 35,215 psi | 56% | 2172 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 82% | 27,499 psi | 44% | 2028 fps | 95.4% |
| Winchester 748 | 33 gr | 82% | 31,705 psi | 51% | 2152 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 90% | 37,710 psi | 60% | 2264 fps | 95.6% |
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 101 powders for .300 CR loaded with the .308 | 180gr | Barnes MRX BT. Hodgdon CFE223 delivers the highest muzzle velocity at 2,592 fps; across all powders the maximum-charge window runs from 1,430 fps to 2,592 fps. Accurate 2495 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 48–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2700, Accurate 4064 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 1200-R, Winchester 748 rank at the top here: for .300 CR with the .308 | 180gr | Barnes MRX BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Hodgdon Hybrid 100V, IMR 4166 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.