Load Specifications
Bullet:.308 | 180gr | Hornady GMX
Bullet Manufacturer:Hornady
Bullet Weight:180 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:1:10.5
Load data in caliber .300 CR with .308 | 180gr | Hornady GMX bullet and 84 powders. The key underlying parameters are shown in the table above.
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>> | 86% | 56,072 psi | 90% | 2349 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 53,592 psi | 86% | 2398 fps | 100% |
| Accurate 2200 | <<locked>> | 90% | 56,057 psi | 90% | 2480 fps | 97.6% |
| Accurate 2230 | <<locked>> | 90% | 56,318 psi | 90% | 2487 fps | 98% |
| Accurate 2460 | <<locked>> | 96% | 55,608 psi | 89% | 2457 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 44,150 psi | 71% | 2346 fps | 100% |
| Accurate 2520ᴾ | <<locked>> | 100% | 56,333 psi | 90% | 2503 fps | 99.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 41,031 psi | 66% | 2326 fps | 99.4% |
| Accurate LT-30 | <<locked>> | 90% | 53,461 psi | 86% | 2329 fps | 100% |
| Accurate LT-32 | <<locked>> | 90% | 53,954 psi | 87% | 2343 fps | 99.8% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 52,330 psi | 84% | 2451 fps | 97.9% |
| ADI AR 2207 | <<locked>> | 88% | 53,679 psi | 86% | 2352 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 55,347 psi | 89% | 2467 fps | 100% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 55,753 psi | 89% | 2467 fps | 99.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 53,505 psi | 86% | 2464 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 53,447 psi | 86% | 2516 fps | 98.7% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 41,800 psi | 67% | 2323 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 94% | 54,012 psi | 87% | 2411 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 46,021 psi | 74% | 2385 fps | 96.1% |
| Alliant Reloder-7 | <<locked>> | 88% | 54,853 psi | 88% | 2362 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 55,259 psi | 89% | 2369 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 52,315 psi | 84% | 2464 fps | 96.6% |
| Bofors RP3ᴾ | <<locked>> | 100% | 41,002 psi | 66% | 2326 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 98% | 55,825 psi | 90% | 2425 fps | 99.5% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 53,374 psi | 86% | 2493 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 98% | 55,869 psi | 90% | 2569 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 94% | 53,359 psi | 86% | 2444 fps | 100% |
| Hodgdon H335 | <<locked>> | 94% | 54,665 psi | 88% | 2470 fps | 100% |
| Hodgdon H4198 | <<locked>> | 88% | 55,651 psi | 89% | 2372 fps | 100% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 52,591 psi | 84% | 2464 fps | 98.4% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 47,703 psi | 76% | 2438 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,721 psi | 52% | 1407 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 51,503 psi | 83% | 2428 fps | 98.1% |
| IMR 3031ᴾ | <<locked>> | 100% | 50,401 psi | 81% | 2464 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 46,862 psi | 75% | 2346 fps | 96.2% |
| IMR 4198 | <<locked>> | 94% | 55,564 psi | 89% | 2382 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 55,550 psi | 89% | 2313 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 47,065 psi | 75% | 2415 fps | 97.1% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 55,753 psi | 89% | 2467 fps | 99.2% |
| Lovex D073.4 | <<locked>> | 88% | 53,156 psi | 85% | 2431 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 96% | 55,782 psi | 89% | 2464 fps | 99.6% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 50,082 psi | 80% | 2441 fps | 99.6% |
| Lovex S053 | <<locked>> | 84% | 53,867 psi | 86% | 2260 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 54,592 psi | 88% | 2405 fps | 98.1% |
| Lovex S062ᴾ | <<locked>> | 100% | 45,411 psi | 73% | 2346 fps | 97.9% |
| Norma 200 | <<locked>> | 90% | 54,157 psi | 87% | 2392 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 50,778 psi | 81% | 2408 fps | 98.7% |
| Norma 202ᴾ | <<locked>> | 100% | 50,923 psi | 82% | 2425 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 45,034 psi | 72% | 2375 fps | 96.6% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 45,948 psi | 74% | 2392 fps | 96.2% |
| Ramshot Wild Boarᴾ | <<locked>> | 100% | 55,100 psi | 88% | 2493 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 96% | 54,650 psi | 88% | 2431 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,880 psi | 53% | 1444 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 55,738 psi | 89% | 2349 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 52,736 psi | 85% | 2425 fps | 99.6% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 48,414 psi | 78% | 2477 fps | 96.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 40,422 psi | 65% | 2356 fps | 97.7% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 55,071 psi | 88% | 2444 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 47,892 psi | 77% | 2359 fps | 98.3% |
| Shooters World AR Plus | <<locked>> | 88% | 53,156 psi | 85% | 2431 fps | 99.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 50,082 psi | 80% | 2441 fps | 99.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 45,411 psi | 73% | 2346 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 53,650 psi | 86% | 2402 fps | 98.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 54,679 psi | 88% | 2129 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 55,608 psi | 89% | 2474 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 55,535 psi | 89% | 2428 fps | 100% |
| SNPE Vectan SP 7ᴾ | <<locked>> | 100% | 54,404 psi | 87% | 2448 fps | 96% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 50,836 psi | 82% | 2428 fps | 97.5% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 54,984 psi | 88% | 2382 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 44,179 psi | 71% | 2257 fps | 99.8% |
| Somchem S321 | <<locked>> | 96% | 53,896 psi | 86% | 2467 fps | 99.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 52,591 psi | 84% | 2375 fps | 100% |
| Somchem S341ᴾ | <<locked>> | 100% | 53,548 psi | 86% | 2448 fps | 97.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 39,711 psi | 64% | 2277 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 88% | 53,708 psi | 86% | 2306 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 54,708 psi | 88% | 2369 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 54,201 psi | 87% | 2375 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 46,050 psi | 74% | 2352 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 48,153 psi | 77% | 2362 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 38,276 psi | 61% | 2228 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 98% | 53,229 psi | 85% | 2428 fps | 99% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 46,441 psi | 74% | 2359 fps | 99.5% |
| Winchester 748ᴾ | <<locked>> | 100% | 54,897 psi | 88% | 2513 fps | 99.6% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 49,980 psi | 80% | 2434 fps | 98% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 45,934 psi | 74% | 2228 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 30,313 psi | 49% | 2041 fps | 98.8% |
| Accurate 2200 | <<locked>> | 84% | 46,035 psi | 74% | 2336 fps | 95.7% |
| Accurate 2230 | <<locked>> | 82% | 42,047 psi | 67% | 2283 fps | 95.1% |
| Accurate 2460 | <<locked>> | 80% | 32,213 psi | 52% | 2100 fps | 96.8% |
| Accurate 2495 | <<locked>> | 80% | 22,379 psi | 36% | 1923 fps | 96.6% |
| Accurate 2520 | <<locked>> | 82% | 29,994 psi | 48% | 2090 fps | 95.6% |
| Accurate 4064 | <<locked>> | 86% | 25,933 psi | 42% | 2024 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 39,479 psi | 63% | 2133 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 80% | 39,856 psi | 64% | 2139 fps | 98.2% |
| ADI AR 2206H | <<locked>> | 92% | 40,741 psi | 65% | 2277 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 41,626 psi | 67% | 2198 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 36,825 psi | 59% | 2201 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 86% | 35,911 psi | 58% | 2162 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 27,775 psi | 45% | 2054 fps | 99.8% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 38,218 psi | 61% | 2277 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 36,956 psi | 59% | 2238 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,056 psi | 56% | 2139 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 43,265 psi | 69% | 2339 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,975 psi | 69% | 2211 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,608 psi | 60% | 2126 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 46,093 psi | 74% | 2372 fps | 95.2% |
| Bofors RP3 | <<locked>> | 96% | 35,984 psi | 58% | 2238 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 82% | 34,243 psi | 55% | 2090 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 86% | 33,054 psi | 53% | 2169 fps | 95.2% |
| Hodgdon CFE223 | <<locked>> | 90% | 42,801 psi | 69% | 2372 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 33,634 psi | 54% | 2139 fps | 98.3% |
| Hodgdon H335 | <<locked>> | 80% | 33,765 psi | 54% | 2149 fps | 97.5% |
| Hodgdon H4198 | <<locked>> | 80% | 43,613 psi | 70% | 2208 fps | 99.6% |
| Hodgdon H4895 | <<locked>> | 90% | 38,493 psi | 62% | 2244 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 36,709 psi | 59% | 2247 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,279 psi | 39% | 1257 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 40,089 psi | 64% | 2251 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 26,382 psi | 42% | 2028 fps | 96.8% |
| IMR 4064 | <<locked>> | 98% | 44,048 psi | 71% | 2303 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 36,738 psi | 59% | 2123 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 49,400 psi | 79% | 2241 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 39,073 psi | 63% | 2283 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 86% | 35,911 psi | 58% | 2162 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 39,668 psi | 64% | 2238 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 80% | 32,039 psi | 51% | 2096 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 86% | 30,763 psi | 49% | 2119 fps | 95.8% |
| Lovex S053 | <<locked>> | 80% | 48,080 psi | 77% | 2192 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 40,234 psi | 65% | 2192 fps | 95.1% |
| Lovex S062 | <<locked>> | 92% | 35,215 psi | 56% | 2172 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 39,392 psi | 63% | 2195 fps | 100% |
| Norma 201 | <<locked>> | 88% | 35,070 psi | 56% | 2152 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 26,992 psi | 43% | 2001 fps | 95% |
| Norma 203B | <<locked>> | 96% | 39,784 psi | 64% | 2287 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 98% | 42,873 psi | 69% | 2343 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 92% | 42,206 psi | 68% | 2310 fps | 95.6% |
| Ramshot X-Terminator | <<locked>> | 88% | 42,192 psi | 68% | 2251 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,902 psi | 38% | 1283 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 48,936 psi | 78% | 2270 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 33,431 psi | 54% | 2116 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 42,395 psi | 68% | 2379 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 35,607 psi | 57% | 2254 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 30,284 psi | 49% | 2037 fps | 96% |
| Rottweil R 902 | <<locked>> | 90% | 35,201 psi | 56% | 2149 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 39,668 psi | 64% | 2238 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 30,763 psi | 49% | 2119 fps | 95.8% |
| Shooters World Precision | <<locked>> | 92% | 35,215 psi | 56% | 2172 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 37,971 psi | 61% | 2169 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,295 psi | 71% | 2011 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 37,115 psi | 60% | 2201 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,549 psi | 57% | 2139 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 98% | 50,589 psi | 81% | 2398 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 42,090 psi | 67% | 2297 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 29,196 psi | 47% | 1972 fps | 95.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 25,092 psi | 40% | 1893 fps | 95.1% |
| Somchem S321 | <<locked>> | 84% | 35,534 psi | 57% | 2185 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 28,514 psi | 46% | 1978 fps | 96.5% |
| Somchem S341 | <<locked>> | 92% | 40,901 psi | 66% | 2264 fps | 95.1% |
| Somchem S355 | <<locked>> | 98% | 37,318 psi | 60% | 2234 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 41,829 psi | 67% | 2162 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,402 psi | 54% | 2060 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 80% | 29,008 psi | 47% | 1985 fps | 98.3% |
| Vihtavuori N135 | <<locked>> | 80% | 24,018 psi | 39% | 1939 fps | 96.9% |
| Vihtavuori N140 | <<locked>> | 82% | 27,166 psi | 44% | 1985 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 96% | 33,794 psi | 54% | 2146 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 86% | 35,882 psi | 58% | 2162 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 84% | 27,876 psi | 45% | 2018 fps | 95.1% |
| Winchester 748 | <<locked>> | 84% | 31,981 psi | 51% | 2136 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 92% | 38,189 psi | 61% | 2247 fps | 95.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 84 powders for .300 CR loaded with the .308 | 180gr | Hornady GMX. Hodgdon CFE223 delivers the highest muzzle velocity at 2,569 fps; across all powders the maximum-charge window runs from 1,407 fps to 2,569 fps. Accurate 2495 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2520, 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.