Load Specifications
Load data in caliber .308 Win. with .308 | 185gr | Lapua Mega bullet and 92 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>> | 90% | 53,055 psi | 88% | 2448 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 53,766 psi | 89% | 2533 fps | 98.8% |
| Accurate 2460 | <<locked>> | 86% | 51,459 psi | 85% | 2467 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 53,301 psi | 89% | 2503 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 52,750 psi | 88% | 2523 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 52,562 psi | 87% | 2533 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 41,568 psi | 69% | 2434 fps | 96.3% |
| Accurate LT-30 | <<locked>> | 84% | 53,679 psi | 89% | 2402 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 54,143 psi | 90% | 2421 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 52,127 psi | 87% | 2526 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 98% | 52,910 psi | 88% | 2516 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 84% | 53,592 psi | 89% | 2507 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 51,619 psi | 86% | 2487 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 92% | 54,331 psi | 90% | 2516 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 52,823 psi | 88% | 2579 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 51,387 psi | 85% | 2615 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 51,851 psi | 86% | 2536 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 86% | 53,258 psi | 88% | 2457 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 52,794 psi | 88% | 2556 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,569 psi | 71% | 2441 fps | 96.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,820 psi | 81% | 2582 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 52,591 psi | 87% | 2405 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 51,663 psi | 86% | 2536 fps | 98.4% |
| Bofors RP3 | <<locked>> | 98% | 51,938 psi | 86% | 2549 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 90% | 54,041 psi | 90% | 2477 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 92% | 53,301 psi | 89% | 2559 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 51,590 psi | 86% | 2592 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 86% | 52,417 psi | 87% | 2493 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 53,432 psi | 89% | 2520 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 53,882 psi | 90% | 2559 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 92% | 52,504 psi | 87% | 2536 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,740 psi | 64% | 2343 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 53,983 psi | 90% | 2605 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,476 psi | 57% | 1496 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 54,143 psi | 90% | 2539 fps | 99.6% |
| IMR 3031 | <<locked>> | 92% | 51,314 psi | 85% | 2526 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 52,359 psi | 87% | 2503 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 94% | 53,548 psi | 89% | 2484 fps | 95.7% |
| IMR 4198 | <<locked>> | 86% | 53,940 psi | 90% | 2418 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,176 psi | 67% | 2388 fps | 95.9% |
| IMR 4895 | <<locked>> | 96% | 54,085 psi | 90% | 2585 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 90% | 51,619 psi | 86% | 2487 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 86% | 51,416 psi | 85% | 2477 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 94% | 54,201 psi | 90% | 2552 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 52,837 psi | 88% | 2464 fps | 99.2% |
| Lovex S062 | <<locked>> | 96% | 51,634 psi | 86% | 2503 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 47,558 psi | 79% | 2438 fps | 96% |
| Norma 200 | <<locked>> | 82% | 53,272 psi | 89% | 2431 fps | 100% |
| Norma 201 | <<locked>> | 94% | 54,186 psi | 90% | 2523 fps | 99.9% |
| Norma 202 | <<locked>> | 94% | 54,302 psi | 90% | 2530 fps | 100% |
| Norma 203B | <<locked>> | 96% | 51,851 psi | 86% | 2546 fps | 99.2% |
| Norma URPᴾ | <<locked>> | 100% | 42,279 psi | 70% | 2434 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 96% | 52,011 psi | 86% | 2566 fps | 99.1% |
| Ramshot TAC | <<locked>> | 90% | 52,228 psi | 87% | 2500 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 92% | 54,230 psi | 90% | 2562 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 88% | 53,098 psi | 88% | 2493 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,766 psi | 58% | 1532 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 51,576 psi | 86% | 2480 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 51,068 psi | 85% | 2490 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 52,330 psi | 87% | 2612 fps | 99% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 52,185 psi | 87% | 2644 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 52,228 psi | 87% | 2470 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 51,300 psi | 85% | 2477 fps | 99.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 51,459 psi | 85% | 2536 fps | 99.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 47,558 psi | 79% | 2438 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 94% | 54,201 psi | 90% | 2552 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 51,634 psi | 86% | 2503 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 51,488 psi | 86% | 2451 fps | 99.5% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 54,085 psi | 90% | 2520 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 53,664 psi | 89% | 2595 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 54,302 psi | 90% | 2474 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 53,287 psi | 89% | 2520 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 53,809 psi | 89% | 2546 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 53,548 psi | 89% | 2438 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 52,518 psi | 87% | 2428 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 52,518 psi | 87% | 2520 fps | 99.9% |
| Somchem S335 | <<locked>> | 92% | 52,185 psi | 87% | 2434 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 52,881 psi | 88% | 2520 fps | 99.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 52,286 psi | 87% | 2536 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,753 psi | 63% | 2388 fps | 98.3% |
| Vihtavuori N130 | <<locked>> | 88% | 53,548 psi | 89% | 2411 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 53,374 psi | 89% | 2428 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 53,330 psi | 89% | 2493 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 51,358 psi | 85% | 2464 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,546 psi | 84% | 2480 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,701 psi | 74% | 2434 fps | 96.6% |
| Vihtavuori N530 | <<locked>> | 90% | 51,895 psi | 86% | 2487 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 96% | 52,823 psi | 88% | 2507 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,627 psi | 72% | 2441 fps | 96.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,977 psi | 76% | 2428 fps | 98.7% |
| Winchester 748 | <<locked>> | 92% | 54,143 psi | 90% | 2572 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 53,243 psi | 88% | 2552 fps | 99.6% |
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% | 39,001 psi | 65% | 2247 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 50,401 psi | 84% | 2484 fps | 98.4% |
| Accurate 2460 | <<locked>> | 80% | 42,279 psi | 70% | 2333 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 31,517 psi | 52% | 2165 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 37,623 psi | 63% | 2290 fps | 99.1% |
| Accurate 4064 | <<locked>> | 80% | 29,820 psi | 50% | 2146 fps | 98.3% |
| Accurate 4350 | <<locked>> | 98% | 38,754 psi | 64% | 2385 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 47,732 psi | 79% | 2323 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,051 psi | 80% | 2339 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 35,868 psi | 60% | 2244 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 86% | 36,912 psi | 61% | 2251 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 47,050 psi | 78% | 2421 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,840 psi | 63% | 2260 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 80% | 36,303 psi | 60% | 2267 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,468 psi | 72% | 2431 fps | 98.5% |
| Alliant Power Pro 2000-MR | 41.2 gr | 86% | 39,218 psi | 65% | 2395 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 31,328 psi | 52% | 2175 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,541 psi | 74% | 2336 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 36,201 psi | 60% | 2274 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,321 psi | 67% | 2398 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 90% | 35,346 psi | 59% | 2326 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,151 psi | 77% | 2316 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,595 psi | 66% | 2339 fps | 95.7% |
| Bofors RP3 | <<locked>> | 82% | 30,530 psi | 51% | 2172 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,132 psi | 67% | 2264 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,708 psi | 59% | 2274 fps | 97.9% |
| Hodgdon CFE223 | 39.3 gr | 80% | 39,291 psi | 65% | 2382 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 80% | 43,105 psi | 72% | 2362 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,642 psi | 73% | 2379 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 41,408 psi | 69% | 2365 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 36,056 psi | 60% | 2257 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,389 psi | 57% | 2251 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,111 psi | 53% | 2218 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,411 psi | 42% | 1332 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,853 psi | 58% | 2215 fps | 96.1% |
| IMR 3031 | <<locked>> | 80% | 34,780 psi | 58% | 2264 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 36,318 psi | 60% | 2234 fps | 95.5% |
| IMR 4166 Enduron | <<locked>> | 92% | 50,343 psi | 84% | 2438 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 45,353 psi | 75% | 2306 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 37,681 psi | 63% | 2343 fps | 95.1% |
| IMR 4895 | <<locked>> | 82% | 34,722 psi | 58% | 2254 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 37,840 psi | 63% | 2260 fps | 97.8% |
| Lovex D073.5 | <<locked>> | 80% | 41,930 psi | 70% | 2333 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 33,910 psi | 56% | 2228 fps | 98.4% |
| Lovex S060 | <<locked>> | 80% | 36,811 psi | 61% | 2198 fps | 96.2% |
| Lovex S062 | <<locked>> | 80% | 31,604 psi | 53% | 2149 fps | 96% |
| Lovex S065 | <<locked>> | 98% | 44,730 psi | 74% | 2392 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 50,053 psi | 83% | 2392 fps | 100% |
| Norma 201 | <<locked>> | 80% | 35,157 psi | 58% | 2208 fps | 97.2% |
| Norma 202 | <<locked>> | 80% | 35,056 psi | 58% | 2224 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 33,344 psi | 55% | 2218 fps | 95.1% |
| Norma URP | <<locked>> | 98% | 39,726 psi | 66% | 2385 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 84% | 35,230 psi | 59% | 2274 fps | 95.3% |
| Ramshot TAC | <<locked>> | 84% | 43,047 psi | 72% | 2352 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,666 psi | 61% | 2274 fps | 96.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,944 psi | 68% | 2300 fps | 97.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,773 psi | 43% | 1368 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,409 psi | 70% | 2339 fps | 99.5% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 48,008 psi | 80% | 2444 fps | 95.2% |
| ReloadSwiss RS 52 | 39 gr | 84% | 37,260 psi | 62% | 2356 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 29,138 psi | 48% | 2178 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 38,870 psi | 65% | 2260 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 80% | 33,475 psi | 56% | 2165 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 84% | 30,690 psi | 51% | 2169 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 98% | 44,730 psi | 74% | 2392 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,910 psi | 56% | 2228 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 31,604 psi | 53% | 2149 fps | 96% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,063 psi | 75% | 2356 fps | 98.8% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 47,500 psi | 79% | 2431 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 34,374 psi | 57% | 2260 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,976 psi | 75% | 2349 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 40,799 psi | 68% | 2323 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,476 psi | 57% | 2218 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,869 psi | 61% | 2185 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,066 psi | 50% | 2064 fps | 98.7% |
| Somchem S321 | <<locked>> | 80% | 40,190 psi | 67% | 2326 fps | 98.6% |
| Somchem S335 | <<locked>> | 80% | 36,361 psi | 60% | 2188 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 35,099 psi | 58% | 2224 fps | 95.5% |
| Somchem S355 | <<locked>> | 84% | 31,966 psi | 53% | 2178 fps | 95.2% |
| Somchem S365 | <<locked>> | 92% | 29,457 psi | 49% | 2195 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 41,843 psi | 70% | 2254 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,869 psi | 61% | 2188 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,053 psi | 53% | 2165 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 33,112 psi | 55% | 2169 fps | 99% |
| Vihtavuori N150 | <<locked>> | 82% | 28,398 psi | 47% | 2080 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 96% | 39,378 psi | 65% | 2343 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 37,666 psi | 63% | 2257 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 80% | 31,836 psi | 53% | 2156 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 98% | 40,944 psi | 68% | 2395 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 33,344 psi | 55% | 2188 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 36,405 psi | 60% | 2290 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,547 psi | 56% | 2218 fps | 95.8% |
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 92 powders for .308 Win. loaded with the .308 | 185gr | Lapua Mega. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,644 fps; across all powders the maximum-charge window runs from 1,496 fps to 2,644 fps. Accurate 4350 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 185.0 gr projectile in 0.308" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 .308 Win. with the .308 | 185gr | Lapua Mega 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.