Load Specifications
Load data in caliber .300 CR with .308 | 180gr | Speer RN bullet and 90 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 CFE223.
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>> | 92% | 53,534 psi | 86% | 2457 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 54,215 psi | 87% | 2536 fps | 98.5% |
| Accurate 2230 | <<locked>> | 84% | 55,216 psi | 89% | 2552 fps | 98.8% |
| Accurate 2460 | <<locked>> | 90% | 55,651 psi | 89% | 2526 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 53,098 psi | 85% | 2510 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 53,171 psi | 85% | 2533 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 52,402 psi | 84% | 2539 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 54,665 psi | 88% | 2415 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 55,085 psi | 88% | 2434 fps | 100% |
| ADI AR 2206H | <<locked>> | 96% | 55,651 psi | 89% | 2575 fps | 99.2% |
| ADI AR 2207 | <<locked>> | 84% | 55,637 psi | 89% | 2431 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 53,301 psi | 85% | 2523 fps | 98.4% |
| ADI AR 2219 | <<locked>> | 86% | 54,157 psi | 87% | 2520 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 55,463 psi | 89% | 2539 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 94% | 54,346 psi | 87% | 2526 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 53,185 psi | 85% | 2585 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 55,187 psi | 88% | 2667 fps | 98.6% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 51,663 psi | 83% | 2536 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 88% | 53,911 psi | 86% | 2470 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 56,246 psi | 90% | 2602 fps | 99% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,832 psi | 73% | 2530 fps | 98.2% |
| Alliant Reloder-7 | <<locked>> | 82% | 53,621 psi | 86% | 2411 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 53,534 psi | 86% | 2418 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 55,622 psi | 89% | 2592 fps | 98.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 51,851 psi | 83% | 2552 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 92% | 54,578 psi | 88% | 2487 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 94% | 53,563 psi | 86% | 2566 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 92% | 55,622 psi | 89% | 2651 fps | 99% |
| Hodgdon H322 | <<locked>> | 90% | 56,217 psi | 90% | 2546 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 53,838 psi | 86% | 2530 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 54,099 psi | 87% | 2559 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 82% | 53,200 psi | 85% | 2415 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 56,086 psi | 90% | 2585 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 54,447 psi | 87% | 2612 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,924 psi | 54% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 54,447 psi | 87% | 2546 fps | 99.4% |
| IMR 3031 | <<locked>> | 96% | 54,592 psi | 88% | 2572 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 56,188 psi | 90% | 2552 fps | 98.9% |
| IMR 4198 | <<locked>> | 88% | 54,476 psi | 87% | 2431 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 54,273 psi | 87% | 2589 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 94% | 55,463 psi | 89% | 2539 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 84% | 55,883 psi | 90% | 2536 fps | 100% |
| Lovex D073.5 | <<locked>> | 90% | 55,680 psi | 89% | 2536 fps | 100% |
| Lovex D073.6 | <<locked>> | 96% | 54,360 psi | 87% | 2559 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 53,432 psi | 86% | 2470 fps | 98.9% |
| Lovex S062ᴾ | <<locked>> | 100% | 55,230 psi | 89% | 2549 fps | 99.8% |
| Norma 200 | <<locked>> | 84% | 53,780 psi | 86% | 2444 fps | 100% |
| Norma 201 | <<locked>> | 96% | 54,346 psi | 87% | 2526 fps | 99.7% |
| Norma 202 | <<locked>> | 96% | 54,839 psi | 88% | 2539 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 55,216 psi | 89% | 2592 fps | 99.2% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 55,811 psi | 89% | 2615 fps | 99.1% |
| Ramshot TAC | <<locked>> | 94% | 56,173 psi | 90% | 2549 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 94% | 54,694 psi | 88% | 2569 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 90% | 53,809 psi | 86% | 2500 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,185 psi | 55% | 1522 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 55,332 psi | 89% | 2533 fps | 100% |
| ReloadSwiss RS 50ᴾ | <<locked>> | 100% | 55,129 psi | 88% | 2543 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 56,159 psi | 90% | 2667 fps | 99% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,979 psi | 79% | 2592 fps | 100% |
| Rottweil R 901 | <<locked>> | 94% | 55,767 psi | 89% | 2520 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 54,795 psi | 88% | 2523 fps | 99.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 48,240 psi | 77% | 2493 fps | 98.9% |
| Shooters World AR Plus | <<locked>> | 84% | 55,883 psi | 90% | 2536 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 96% | 54,360 psi | 87% | 2559 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 55,230 psi | 89% | 2549 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 55,941 psi | 90% | 2507 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 55,405 psi | 89% | 2195 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 54,839 psi | 88% | 2533 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 50,212 psi | 81% | 2546 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 54,984 psi | 88% | 2487 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 53,838 psi | 86% | 2523 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 54,244 psi | 87% | 2552 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 53,954 psi | 87% | 2444 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 52,808 psi | 85% | 2434 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 53,142 psi | 85% | 2530 fps | 99.7% |
| Somchem S335 | <<locked>> | 96% | 55,709 psi | 89% | 2480 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 53,011 psi | 85% | 2520 fps | 98.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 49,226 psi | 79% | 2493 fps | 98.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,317 psi | 57% | 2333 fps | 96.9% |
| Vihtavuori N120 | <<locked>> | 84% | 55,535 psi | 89% | 2382 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 54,012 psi | 87% | 2425 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 53,621 psi | 86% | 2434 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 53,156 psi | 85% | 2497 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 55,013 psi | 88% | 2513 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 47,587 psi | 76% | 2438 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 94% | 56,043 psi | 90% | 2539 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 98% | 53,243 psi | 85% | 2516 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 43,526 psi | 70% | 2382 fps | 97.6% |
| Winchester 748 | <<locked>> | 94% | 54,752 psi | 88% | 2585 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 96% | 53,650 psi | 86% | 2559 fps | 99.4% |
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% | 37,043 psi | 59% | 2218 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 47,703 psi | 76% | 2441 fps | 97.4% |
| Accurate 2230 | <<locked>> | 80% | 47,805 psi | 77% | 2448 fps | 97.8% |
| Accurate 2460 | <<locked>> | 80% | 39,871 psi | 64% | 2297 fps | 99.4% |
| Accurate 2495 | <<locked>> | 80% | 29,356 psi | 47% | 2126 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 35,114 psi | 56% | 2247 fps | 98.3% |
| Accurate 4064 | <<locked>> | 80% | 27,833 psi | 45% | 2103 fps | 97.2% |
| Accurate LT-30 | <<locked>> | 80% | 45,556 psi | 73% | 2293 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 45,934 psi | 74% | 2306 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 36,056 psi | 58% | 2251 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 49,313 psi | 79% | 2352 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 39,305 psi | 63% | 2297 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 44,498 psi | 71% | 2388 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,926 psi | 58% | 2224 fps | 96.7% |
| Alliant AR-Comp | <<locked>> | 80% | 34,301 psi | 55% | 2238 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 41,075 psi | 66% | 2392 fps | 97.6% |
| Alliant Power Pro 2000-MR | 41.1 gr | 90% | 42,453 psi | 68% | 2457 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 33,301 psi | 53% | 2221 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,076 psi | 67% | 2306 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 38,711 psi | 62% | 2326 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 35,389 psi | 57% | 2320 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 50,546 psi | 81% | 2372 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,222 psi | 71% | 2293 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 40,059 psi | 64% | 2346 fps | 95.2% |
| Bofors RP3 | <<locked>> | 86% | 32,460 psi | 52% | 2218 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,261 psi | 61% | 2228 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,431 psi | 54% | 2228 fps | 96.7% |
| Hodgdon CFE223 | 38.3 gr | 82% | 39,494 psi | 63% | 2388 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 40,567 psi | 65% | 2323 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 80% | 41,089 psi | 66% | 2343 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 94% | 44,483 psi | 71% | 2418 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 50,140 psi | 80% | 2372 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 34,156 psi | 55% | 2218 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 32,372 psi | 52% | 2221 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,092 psi | 40% | 1322 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,099 psi | 56% | 2221 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 32,605 psi | 52% | 2224 fps | 99.5% |
| IMR 4064 | <<locked>> | 88% | 38,885 psi | 62% | 2283 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 43,105 psi | 69% | 2280 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 34,882 psi | 56% | 2260 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 35,926 psi | 58% | 2224 fps | 96.7% |
| Lovex D073.4 | <<locked>> | 80% | 48,399 psi | 78% | 2438 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 39,682 psi | 64% | 2297 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 80% | 31,676 psi | 51% | 2185 fps | 97.3% |
| Lovex S060 | <<locked>> | 82% | 37,391 psi | 60% | 2208 fps | 95.7% |
| Lovex S062 | <<locked>> | 82% | 31,821 psi | 51% | 2156 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 47,471 psi | 76% | 2362 fps | 100% |
| Norma 201 | <<locked>> | 80% | 33,243 psi | 53% | 2169 fps | 96% |
| Norma 202 | <<locked>> | 80% | 33,098 psi | 53% | 2188 fps | 98.3% |
| Norma 203B | <<locked>> | 86% | 35,563 psi | 57% | 2267 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 88% | 37,840 psi | 61% | 2326 fps | 95.5% |
| Ramshot TAC | <<locked>> | 88% | 46,499 psi | 75% | 2408 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 36,796 psi | 59% | 2277 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 38,986 psi | 63% | 2264 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,440 psi | 41% | 1358 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,132 psi | 64% | 2303 fps | 98.9% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 51,619 psi | 83% | 2493 fps | 95.3% |
| ReloadSwiss RS 52 | 38 gr | 86% | 37,362 psi | 60% | 2359 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 29,515 psi | 47% | 2185 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 36,985 psi | 59% | 2228 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 80% | 31,604 psi | 51% | 2126 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 88% | 32,634 psi | 52% | 2215 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 48,399 psi | 78% | 2438 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,676 psi | 51% | 2185 fps | 97.3% |
| Shooters World Precision | <<locked>> | 82% | 31,821 psi | 51% | 2156 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,569 psi | 68% | 2313 fps | 98% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 50,009 psi | 80% | 2136 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,817 psi | 72% | 2392 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 36,637 psi | 59% | 2310 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,743 psi | 69% | 2320 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 44,034 psi | 71% | 2379 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 37,086 psi | 59% | 2274 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,128 psi | 56% | 2152 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,529 psi | 46% | 2031 fps | 97.9% |
| Somchem S321 | <<locked>> | 80% | 38,116 psi | 61% | 2290 fps | 97.7% |
| Somchem S335 | <<locked>> | 80% | 34,447 psi | 55% | 2156 fps | 99.1% |
| Somchem S341 | <<locked>> | 84% | 37,913 psi | 61% | 2280 fps | 95.7% |
| Somchem S355 | <<locked>> | 88% | 34,011 psi | 55% | 2228 fps | 95.3% |
| Somchem S365 | <<locked>> | 96% | 31,227 psi | 50% | 2234 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 49,269 psi | 79% | 2310 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 39,943 psi | 64% | 2228 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,085 psi | 56% | 2159 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 30,124 psi | 48% | 2129 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 31,241 psi | 50% | 2133 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 86% | 30,226 psi | 48% | 2126 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 35,491 psi | 57% | 2215 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 80% | 29,950 psi | 48% | 2116 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 35,766 psi | 57% | 2234 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 34,345 psi | 55% | 2251 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 82% | 33,576 psi | 54% | 2221 fps | 95.1% |
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 90 powders for .300 CR loaded with the .308 | 180gr | Speer RN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,667 fps; across all powders the maximum-charge window runs from 1,483 fps to 2,667 fps. Accurate 4064 gives the best case fill at 100 %, and 90 of the 90 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, ADI AR 2208, Alliant Reloder- TS 15.5 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 CFE223 rank at the top here: for .300 CR with the .308 | 180gr | Speer RN 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.