Load Specifications
Bullet Manufacturer:Sierra
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:1:13.5
Load data in caliber .300 CR with .308 | 180gr | Sierra SPT Pro-Hunter bullet and 90 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.
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>> | 82% | 54,737 psi | 88% | 2379 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 54,230 psi | 87% | 2444 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 55,317 psi | 89% | 2523 fps | 98.3% |
| Accurate 2230 | <<locked>> | 86% | 56,246 psi | 90% | 2539 fps | 98.7% |
| Accurate 2460 | <<locked>> | 92% | 56,333 psi | 90% | 2510 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 53,243 psi | 85% | 2490 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 53,432 psi | 86% | 2513 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 49,342 psi | 79% | 2477 fps | 100% |
| Accurate LT-30 | <<locked>> | 88% | 55,840 psi | 90% | 2405 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 56,318 psi | 90% | 2425 fps | 100% |
| ADI AR 2206H | <<locked>> | 98% | 56,101 psi | 90% | 2552 fps | 99% |
| ADI AR 2207 | <<locked>> | 84% | 53,258 psi | 85% | 2382 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 50,763 psi | 81% | 2457 fps | 97.6% |
| ADI AR 2219 | <<locked>> | 88% | 54,926 psi | 88% | 2507 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 55,869 psi | 90% | 2520 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 96% | 54,491 psi | 87% | 2510 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 53,708 psi | 86% | 2569 fps | 99.2% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 56,014 psi | 90% | 2644 fps | 98.3% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,863 psi | 78% | 2474 fps | 98.8% |
| Alliant Reloder-10x | <<locked>> | 90% | 54,259 psi | 87% | 2454 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 53,447 psi | 86% | 2539 fps | 98.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 43,613 psi | 70% | 2457 fps | 97.2% |
| Alliant Reloder-7 | <<locked>> | 84% | 54,302 psi | 87% | 2398 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 54,302 psi | 87% | 2405 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 56,101 psi | 90% | 2569 fps | 98.2% |
| Bofors RP3ᴾ | <<locked>> | 100% | 48,602 psi | 78% | 2484 fps | 98.9% |
| Hodgdon Benchmark | <<locked>> | 94% | 55,259 psi | 89% | 2467 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 96% | 54,172 psi | 87% | 2549 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 94% | 56,260 psi | 90% | 2631 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 90% | 53,635 psi | 86% | 2490 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 54,563 psi | 87% | 2513 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 50,749 psi | 81% | 2487 fps | 96.5% |
| Hodgdon H4198 | <<locked>> | 84% | 54,433 psi | 87% | 2405 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 53,171 psi | 85% | 2520 fps | 99.1% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 54,824 psi | 88% | 2592 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,736 psi | 54% | 1460 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 54,984 psi | 88% | 2523 fps | 99.2% |
| IMR 3031 | <<locked>> | 98% | 54,998 psi | 88% | 2556 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 53,432 psi | 86% | 2487 fps | 98.3% |
| IMR 4198 | <<locked>> | 90% | 55,187 psi | 88% | 2418 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 54,752 psi | 88% | 2569 fps | 99% |
| IMR 8208 XBR | <<locked>> | 96% | 55,869 psi | 90% | 2520 fps | 99.6% |
| Lovex D073.4 | <<locked>> | 84% | 52,866 psi | 85% | 2474 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 92% | 56,115 psi | 90% | 2513 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 98% | 54,766 psi | 88% | 2539 fps | 100% |
| Lovex S053 | <<locked>> | 82% | 56,289 psi | 90% | 2326 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 54,230 psi | 87% | 2454 fps | 98.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 52,359 psi | 84% | 2490 fps | 99.4% |
| Norma 200 | <<locked>> | 86% | 54,462 psi | 87% | 2431 fps | 100% |
| Norma 201 | <<locked>> | 98% | 55,056 psi | 88% | 2510 fps | 99.6% |
| Norma 202 | <<locked>> | 98% | 55,071 psi | 88% | 2520 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 52,475 psi | 84% | 2530 fps | 98.6% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 52,808 psi | 85% | 2549 fps | 98.4% |
| Ramshot TAC | <<locked>> | 94% | 53,505 psi | 86% | 2484 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 96% | 55,434 psi | 89% | 2549 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 92% | 54,404 psi | 87% | 2480 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,011 psi | 55% | 1496 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 56,014 psi | 90% | 2513 fps | 100% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 56,376 psi | 90% | 2641 fps | 98.7% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,688 psi | 75% | 2526 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 96% | 56,159 psi | 90% | 2500 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 55,172 psi | 88% | 2503 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 45,121 psi | 72% | 2421 fps | 98.1% |
| Shooters World AR Plus | <<locked>> | 84% | 52,866 psi | 85% | 2474 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 98% | 54,766 psi | 88% | 2539 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 52,359 psi | 84% | 2490 fps | 99.4% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 53,069 psi | 85% | 2444 fps | 99.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 53,650 psi | 86% | 2156 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 55,361 psi | 89% | 2516 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 47,630 psi | 76% | 2480 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 55,419 psi | 89% | 2470 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 54,665 psi | 88% | 2507 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 54,462 psi | 87% | 2526 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 54,621 psi | 88% | 2428 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 50,386 psi | 81% | 2382 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 53,983 psi | 87% | 2516 fps | 99.6% |
| Somchem S335 | <<locked>> | 96% | 53,214 psi | 85% | 2428 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 53,751 psi | 86% | 2503 fps | 98.6% |
| Somchem S355ᴾ | <<locked>> | 100% | 46,601 psi | 75% | 2431 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 84% | 53,142 psi | 85% | 2336 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 54,665 psi | 88% | 2408 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 54,128 psi | 87% | 2418 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 53,577 psi | 86% | 2484 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 55,477 psi | 89% | 2497 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,686 psi | 72% | 2372 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 94% | 53,142 psi | 85% | 2477 fps | 99.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 53,548 psi | 86% | 2497 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 41,481 psi | 67% | 2316 fps | 96.5% |
| Winchester 748 | <<locked>> | 96% | 55,201 psi | 89% | 2566 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 98% | 53,925 psi | 86% | 2536 fps | 99.2% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 51,097 psi | 82% | 2336 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 35,085 psi | 56% | 2162 fps | 99.8% |
| Accurate 2200 | <<locked>> | 80% | 45,426 psi | 73% | 2375 fps | 96.5% |
| Accurate 2230 | <<locked>> | 80% | 45,266 psi | 73% | 2382 fps | 96.9% |
| Accurate 2460 | <<locked>> | 80% | 37,884 psi | 61% | 2241 fps | 98.8% |
| Accurate 2495 | <<locked>> | 80% | 27,499 psi | 44% | 2067 fps | 99% |
| Accurate 2520 | <<locked>> | 80% | 33,156 psi | 53% | 2188 fps | 97.4% |
| Accurate 4064 | <<locked>> | 80% | 26,063 psi | 42% | 2044 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 80% | 43,656 psi | 70% | 2241 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 44,034 psi | 71% | 2254 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 84% | 36,651 psi | 59% | 2241 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 47,268 psi | 76% | 2306 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 39,740 psi | 64% | 2280 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 42,192 psi | 68% | 2329 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 34,040 psi | 55% | 2165 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 32,372 psi | 52% | 2185 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 38,696 psi | 62% | 2323 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 42,815 psi | 69% | 2431 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 33,547 psi | 54% | 2205 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,205 psi | 64% | 2257 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 39,015 psi | 63% | 2310 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 96% | 38,087 psi | 61% | 2349 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 48,443 psi | 78% | 2323 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 42,192 psi | 68% | 2241 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 43,163 psi | 69% | 2375 fps | 95.6% |
| Bofors RP3 | <<locked>> | 88% | 32,706 psi | 52% | 2205 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,376 psi | 58% | 2169 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 80% | 31,618 psi | 51% | 2172 fps | 95.6% |
| Hodgdon CFE223 | <<locked>> | 84% | 39,885 psi | 64% | 2369 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 38,624 psi | 62% | 2267 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 80% | 39,175 psi | 63% | 2287 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 96% | 44,701 psi | 72% | 2395 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 48,109 psi | 77% | 2320 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 34,330 psi | 55% | 2201 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 34,809 psi | 56% | 2254 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,106 psi | 40% | 1306 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 35,476 psi | 57% | 2208 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 30,763 psi | 49% | 2165 fps | 98.9% |
| IMR 4064 | <<locked>> | 90% | 39,160 psi | 63% | 2264 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 41,437 psi | 66% | 2234 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 37,463 psi | 60% | 2293 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 34,040 psi | 55% | 2165 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 46,151 psi | 74% | 2382 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 37,478 psi | 60% | 2238 fps | 97.7% |
| Lovex D073.6 | <<locked>> | 80% | 29,762 psi | 48% | 2126 fps | 96.3% |
| Lovex S053 | <<locked>> | 80% | 53,316 psi | 85% | 2293 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 37,840 psi | 61% | 2195 fps | 95.4% |
| Lovex S062 | <<locked>> | 84% | 31,952 psi | 51% | 2139 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 45,252 psi | 73% | 2313 fps | 100% |
| Norma 201 | <<locked>> | 82% | 33,591 psi | 54% | 2156 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 31,386 psi | 50% | 2133 fps | 97.5% |
| Norma 203B | <<locked>> | 90% | 38,218 psi | 61% | 2300 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 90% | 38,174 psi | 61% | 2306 fps | 95.1% |
| Ramshot TAC | <<locked>> | 92% | 50,038 psi | 80% | 2434 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 37,333 psi | 60% | 2264 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 82% | 39,653 psi | 64% | 2254 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,150 psi | 40% | 1335 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,435 psi | 62% | 2251 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 40,408 psi | 65% | 2392 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 31,618 psi | 51% | 2211 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 35,099 psi | 56% | 2169 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 84% | 33,924 psi | 54% | 2159 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 92% | 34,838 psi | 56% | 2241 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 46,151 psi | 74% | 2382 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,762 psi | 48% | 2126 fps | 96.3% |
| Shooters World Precision | <<locked>> | 84% | 31,952 psi | 51% | 2139 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,698 psi | 65% | 2257 fps | 97.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,515 psi | 78% | 2096 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,815 psi | 69% | 2339 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 39,508 psi | 63% | 2339 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,886 psi | 66% | 2267 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 47,398 psi | 76% | 2405 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 37,318 psi | 60% | 2254 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,634 psi | 54% | 2100 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,267 psi | 44% | 1982 fps | 97% |
| Somchem S321 | <<locked>> | 80% | 36,027 psi | 58% | 2228 fps | 96.7% |
| Somchem S335 | <<locked>> | 80% | 32,822 psi | 53% | 2103 fps | 98.5% |
| Somchem S341 | <<locked>> | 86% | 38,319 psi | 61% | 2264 fps | 95.4% |
| Somchem S355 | <<locked>> | 92% | 36,318 psi | 58% | 2251 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 47,224 psi | 76% | 2264 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,290 psi | 61% | 2182 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,533 psi | 54% | 2110 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 28,514 psi | 46% | 2077 fps | 99.1% |
| Vihtavuori N140 | <<locked>> | 80% | 29,689 psi | 48% | 2077 fps | 97.3% |
| Vihtavuori N150 | <<locked>> | 88% | 30,589 psi | 49% | 2113 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 33,837 psi | 54% | 2159 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 28,340 psi | 45% | 2060 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 38,812 psi | 62% | 2267 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 32,329 psi | 52% | 2182 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 36,405 psi | 58% | 2257 fps | 95.7% |
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 | Sierra SPT Pro-Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,644 fps; across all powders the maximum-charge window runs from 1,460 fps to 2,644 fps. Accurate 2495 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 1:13.5 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.