Load Specifications
Load data in caliber .30-06 Spring. with .308 | 200gr | Lapua Mega bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Hodgdon H414.
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>> | 82% | 50,807 psi | 86% | 2359 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 52,141 psi | 89% | 2418 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 50,401 psi | 86% | 2431 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 51,634 psi | 88% | 2418 fps | 96.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 39,088 psi | 67% | 2323 fps | 96% |
| Accurate 4064 | <<locked>> | 90% | 52,098 psi | 89% | 2461 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 51,430 psi | 88% | 2533 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 86% | 52,953 psi | 90% | 2490 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 50,734 psi | 86% | 2444 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 51,880 psi | 88% | 2444 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 52,489 psi | 89% | 2421 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 52,170 psi | 89% | 2592 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 50,502 psi | 86% | 2464 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 50,937 psi | 87% | 2480 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,098 psi | 90% | 2585 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 50,589 psi | 86% | 2569 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,797 psi | 64% | 2356 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,916 psi | 71% | 2493 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 52,547 psi | 89% | 2503 fps | 99.7% |
| Bofors RP3 | <<locked>> | 90% | 50,502 psi | 86% | 2474 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 51,082 psi | 87% | 2448 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 82% | 50,792 psi | 86% | 2388 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 51,082 psi | 87% | 2470 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,663 psi | 90% | 2556 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 51,517 psi | 88% | 2484 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 96% | 50,807 psi | 86% | 2530 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 94% | 51,851 psi | 88% | 2497 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 84% | 50,038 psi | 85% | 2451 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,052 psi | 84% | 2470 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 52,330 psi | 89% | 2526 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 51,271 psi | 87% | 2556 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,360 psi | 60% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 51,198 psi | 87% | 2454 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 49,995 psi | 85% | 2438 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 50,285 psi | 86% | 2431 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 50,212 psi | 85% | 2408 fps | 97.4% |
| IMR 4350 | <<locked>> | 98% | 51,140 psi | 87% | 2474 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 52,910 psi | 90% | 2477 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,083 psi | 89% | 2526 fps | 99.7% |
| IMR 4895 | <<locked>> | 88% | 52,228 psi | 89% | 2507 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 51,880 psi | 88% | 2444 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 52,243 psi | 89% | 2467 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 52,750 psi | 90% | 2425 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 50,038 psi | 85% | 2428 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 52,315 psi | 89% | 2474 fps | 98.9% |
| Lovex S070 | <<locked>> | 98% | 52,852 psi | 90% | 2500 fps | 98.1% |
| Norma 201 | <<locked>> | 86% | 51,721 psi | 88% | 2441 fps | 100% |
| Norma 202 | <<locked>> | 86% | 52,011 psi | 89% | 2441 fps | 100% |
| Norma 203B | <<locked>> | 88% | 50,198 psi | 85% | 2470 fps | 99.9% |
| Norma 204 | <<locked>> | 98% | 51,358 psi | 87% | 2510 fps | 95.8% |
| Norma URP | <<locked>> | 98% | 50,647 psi | 86% | 2523 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 88% | 50,401 psi | 86% | 2493 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,910 psi | 90% | 2569 fps | 98.8% |
| Ramshot TAC | <<locked>> | 84% | 51,982 psi | 88% | 2461 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 84% | 51,576 psi | 88% | 2477 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 52,852 psi | 90% | 2448 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,013 psi | 61% | 1542 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 52,054 psi | 89% | 2470 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 50,937 psi | 87% | 2536 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 50,372 psi | 86% | 2569 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 50,894 psi | 87% | 2552 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 51,010 psi | 87% | 2575 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 84% | 52,939 psi | 90% | 2425 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 52,286 psi | 89% | 2441 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 50,691 psi | 86% | 2470 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 51,082 psi | 87% | 2448 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 96% | 52,315 psi | 89% | 2474 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 52,243 psi | 89% | 2467 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 50,038 psi | 85% | 2428 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 52,852 psi | 90% | 2500 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 52,083 psi | 89% | 2523 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 50,386 psi | 86% | 2441 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 51,155 psi | 87% | 2464 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 50,256 psi | 86% | 2346 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 50,111 psi | 85% | 2346 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 52,286 psi | 89% | 2428 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 52,823 psi | 90% | 2470 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 52,634 psi | 90% | 2385 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 49,893 psi | 85% | 2431 fps | 99.8% |
| Somchem S355 | <<locked>> | 92% | 50,966 psi | 87% | 2467 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,370 psi | 82% | 2523 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 45,281 psi | 77% | 2418 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 84% | 50,488 psi | 86% | 2336 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 51,677 psi | 88% | 2405 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 52,562 psi | 89% | 2421 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 52,388 psi | 89% | 2451 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 49,705 psi | 85% | 2470 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 84% | 52,315 psi | 89% | 2444 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 50,821 psi | 87% | 2421 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 52,272 psi | 89% | 2526 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,031 psi | 70% | 2421 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 50,038 psi | 85% | 2457 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 52,127 psi | 89% | 2487 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 51,082 psi | 87% | 2533 fps | 97.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,736 psi | 57% | 2352 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 86% | 50,937 psi | 87% | 2470 fps | 100% |
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% | 47,718 psi | 81% | 2320 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,364 psi | 69% | 2257 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,050 psi | 80% | 2385 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 45,252 psi | 77% | 2320 fps | 95.4% |
| Accurate 3100 | <<locked>> | 98% | 36,535 psi | 62% | 2277 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 38,174 psi | 65% | 2254 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 31,676 psi | 54% | 2188 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 43,888 psi | 75% | 2352 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 37,405 psi | 64% | 2224 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,977 psi | 78% | 2359 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 46,035 psi | 78% | 2339 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,813 psi | 68% | 2382 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,854 psi | 63% | 2241 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,653 psi | 68% | 2297 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,474 psi | 55% | 2201 fps | 95.6% |
| Alliant Reloder-17 | 43.4 gr | 80% | 31,778 psi | 54% | 2215 fps | 97.2% |
| Alliant Reloder-23 | <<locked>> | 90% | 27,891 psi | 47% | 2119 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 33,953 psi | 58% | 2323 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,888 psi | 73% | 2356 fps | 98.6% |
| Bofors RP3 | <<locked>> | 80% | 36,376 psi | 62% | 2244 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 42,583 psi | 72% | 2313 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,572 psi | 81% | 2343 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,672 psi | 76% | 2379 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,139 psi | 84% | 2503 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 80% | 37,347 psi | 64% | 2251 fps | 96.7% |
| Hodgdon H414 | 47.8 gr | 90% | 41,945 psi | 71% | 2385 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 90% | 45,643 psi | 78% | 2398 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 44,324 psi | 75% | 2362 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,891 psi | 47% | 2067 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,059 psi | 68% | 2336 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 92% | 44,512 psi | 76% | 2448 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,295 psi | 45% | 1339 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,351 psi | 72% | 2316 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 43,932 psi | 75% | 2356 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,276 psi | 67% | 2251 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,684 psi | 71% | 2267 fps | 95.4% |
| IMR 4350 | <<locked>> | 92% | 42,424 psi | 72% | 2333 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 86% | 41,495 psi | 71% | 2293 fps | 95.2% |
| IMR 4831 | <<locked>> | 84% | 31,067 psi | 53% | 2159 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 40,625 psi | 69% | 2323 fps | 99% |
| IMR 8208 XBR | <<locked>> | 80% | 45,977 psi | 78% | 2359 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,786 psi | 73% | 2333 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,859 psi | 75% | 2293 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 38,928 psi | 66% | 2251 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 36,289 psi | 62% | 2205 fps | 95.3% |
| Lovex S070 | <<locked>> | 90% | 41,278 psi | 70% | 2320 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 43,062 psi | 73% | 2310 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 43,207 psi | 74% | 2316 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,044 psi | 66% | 2287 fps | 98.7% |
| Norma 204 | <<locked>> | 96% | 48,240 psi | 82% | 2464 fps | 95% |
| Norma URP | <<locked>> | 84% | 32,387 psi | 55% | 2195 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 38,435 psi | 65% | 2300 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 38,435 psi | 65% | 2326 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 45,716 psi | 78% | 2365 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,165 psi | 77% | 2382 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,603 psi | 84% | 2402 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,701 psi | 45% | 1375 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,219 psi | 68% | 2280 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,394 psi | 70% | 2385 fps | 98.8% |
| ReloadSwiss RS 60 | 43.4 gr | 80% | 33,808 psi | 58% | 2274 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,808 psi | 58% | 2254 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 36,535 psi | 62% | 2313 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 46,963 psi | 80% | 2343 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,988 psi | 70% | 2267 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 34,258 psi | 58% | 2195 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 42,583 psi | 72% | 2313 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 84% | 36,289 psi | 62% | 2205 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,786 psi | 73% | 2333 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,928 psi | 66% | 2251 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 90% | 41,278 psi | 70% | 2320 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,128 psi | 60% | 2238 fps | 97.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,048 psi | 75% | 2343 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,250 psi | 72% | 2326 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,324 psi | 75% | 2264 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,825 psi | 63% | 2149 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 40,408 psi | 69% | 2247 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 49,429 psi | 84% | 2425 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,034 psi | 75% | 2267 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,656 psi | 74% | 2339 fps | 99.3% |
| Somchem S355 | <<locked>> | 80% | 35,259 psi | 60% | 2205 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 25,425 psi | 43% | 2054 fps | 95.9% |
| Somchem S385 | <<locked>> | 98% | 42,279 psi | 72% | 2369 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 44,643 psi | 76% | 2257 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,263 psi | 69% | 2247 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,886 psi | 70% | 2257 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,373 psi | 57% | 2146 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 31,676 psi | 54% | 2149 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 45,890 psi | 78% | 2352 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 39,450 psi | 67% | 2254 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,228 psi | 57% | 2198 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 90% | 29,718 psi | 51% | 2185 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,602 psi | 50% | 2080 fps | 96.4% |
| Winchester 748 | <<locked>> | 80% | 45,484 psi | 77% | 2395 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 41,945 psi | 71% | 2385 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 94% | 27,949 psi | 48% | 2185 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,684 psi | 71% | 2329 fps | 99.5% |
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 96 powders for .30-06 Spring. loaded with the .308 | 200gr | Lapua Mega. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,592 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,592 fps. Accurate 3100 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-16, Alliant Reloder-23 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 Reloder-17, ReloadSwiss RS 60, Hodgdon H414 rank at the top here: for .30-06 Spring. with the .308 | 200gr | 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.