Load Specifications
Load data in caliber .30-06 Spring. with .308 | 203gr | Peregrine Plainsmaster (VLR-4) bullet and 98 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 Alliant Power Pro 2000-MR.
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 2015 | <<locked>> | 84% | 51,053 psi | 87% | 2336 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 52,388 psi | 89% | 2395 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 51,837 psi | 88% | 2392 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 50,604 psi | 86% | 2408 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 52,330 psi | 89% | 2395 fps | 96.8% |
| Accurate 4064 | <<locked>> | 92% | 51,605 psi | 88% | 2431 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,256 psi | 87% | 2503 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 49,908 psi | 85% | 2418 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 51,184 psi | 87% | 2421 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 52,373 psi | 89% | 2421 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 52,968 psi | 90% | 2398 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 52,634 psi | 90% | 2569 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 50,633 psi | 86% | 2441 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 51,126 psi | 87% | 2454 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,111 psi | 85% | 2510 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 50,792 psi | 86% | 2543 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,201 psi | 60% | 2274 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 38,943 psi | 66% | 2405 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 52,837 psi | 90% | 2477 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 50,589 psi | 86% | 2448 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 51,387 psi | 87% | 2421 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 51,198 psi | 87% | 2365 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 51,285 psi | 87% | 2448 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 49,516 psi | 84% | 2484 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 82% | 53,084 psi | 90% | 2411 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 51,953 psi | 88% | 2461 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 98% | 50,952 psi | 87% | 2500 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 96% | 52,344 psi | 89% | 2470 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 86% | 50,343 psi | 86% | 2428 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,890 psi | 78% | 2398 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 52,779 psi | 90% | 2503 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 51,866 psi | 88% | 2533 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,940 psi | 59% | 1470 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 51,866 psi | 88% | 2431 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 50,067 psi | 85% | 2411 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 50,502 psi | 86% | 2405 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,995 psi | 87% | 2388 fps | 97.4% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,430 psi | 88% | 2444 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 94% | 50,212 psi | 85% | 2405 fps | 97.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,443 psi | 82% | 2448 fps | 99.3% |
| IMR 4895 | <<locked>> | 90% | 52,402 psi | 89% | 2480 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 52,373 psi | 89% | 2421 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 52,141 psi | 89% | 2405 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 52,649 psi | 90% | 2441 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 50,227 psi | 86% | 2359 fps | 99.8% |
| Lovex S062 | <<locked>> | 90% | 50,024 psi | 85% | 2402 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 52,272 psi | 89% | 2441 fps | 98.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,939 psi | 90% | 2470 fps | 98% |
| Norma 201 | <<locked>> | 88% | 51,953 psi | 88% | 2415 fps | 100% |
| Norma 202 | <<locked>> | 88% | 52,417 psi | 89% | 2418 fps | 100% |
| Norma 203B | <<locked>> | 90% | 50,299 psi | 86% | 2444 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 50,618 psi | 86% | 2493 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 90% | 50,575 psi | 86% | 2467 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,777 psi | 85% | 2493 fps | 98.2% |
| Ramshot TAC | <<locked>> | 86% | 52,866 psi | 90% | 2441 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 52,301 psi | 89% | 2457 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 50,111 psi | 85% | 2382 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,549 psi | 61% | 1509 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 52,170 psi | 89% | 2405 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 52,388 psi | 89% | 2444 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 51,068 psi | 87% | 2510 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 50,836 psi | 87% | 2546 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,720 psi | 86% | 2523 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,387 psi | 87% | 2549 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 86% | 52,794 psi | 90% | 2395 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 52,272 psi | 89% | 2411 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 50,473 psi | 86% | 2441 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 51,387 psi | 87% | 2421 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 98% | 52,272 psi | 89% | 2441 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 52,649 psi | 90% | 2441 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 50,024 psi | 85% | 2402 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,939 psi | 90% | 2470 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 52,344 psi | 89% | 2497 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 50,691 psi | 86% | 2415 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 51,561 psi | 88% | 2438 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 50,575 psi | 86% | 2323 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 50,488 psi | 86% | 2323 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 52,895 psi | 90% | 2405 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 50,154 psi | 85% | 2408 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 53,113 psi | 90% | 2362 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 50,589 psi | 86% | 2411 fps | 99.8% |
| Somchem S355 | <<locked>> | 94% | 51,198 psi | 87% | 2441 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,179 psi | 77% | 2451 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 50,749 psi | 86% | 2293 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 50,836 psi | 87% | 2310 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 51,880 psi | 88% | 2382 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 52,895 psi | 90% | 2398 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 52,692 psi | 90% | 2425 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 50,067 psi | 85% | 2448 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 86% | 52,895 psi | 90% | 2421 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 51,184 psi | 87% | 2398 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,141 psi | 89% | 2497 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,739 psi | 64% | 2339 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 50,372 psi | 86% | 2431 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 52,388 psi | 89% | 2464 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 51,314 psi | 87% | 2503 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,285 psi | 53% | 2260 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 88% | 51,358 psi | 87% | 2448 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% | 44,991 psi | 77% | 2257 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,066 psi | 84% | 2352 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,927 psi | 63% | 2185 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,990 psi | 75% | 2316 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 45,730 psi | 78% | 2300 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 34,969 psi | 60% | 2178 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 31,038 psi | 53% | 2156 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 41,379 psi | 70% | 2283 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 35,114 psi | 60% | 2152 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,468 psi | 74% | 2290 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 43,192 psi | 74% | 2277 fps | 100% |
| Alliant Power Pro 2000-MR | 42.1 gr | 80% | 37,420 psi | 64% | 2306 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,330 psi | 58% | 2169 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,115 psi | 63% | 2228 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 32,285 psi | 55% | 2175 fps | 95.3% |
| Alliant Reloder-17 | 41.4 gr | 80% | 29,559 psi | 50% | 2136 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 94% | 29,254 psi | 50% | 2133 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 36,187 psi | 62% | 2346 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,408 psi | 69% | 2287 fps | 98% |
| Bofors RP3 | <<locked>> | 80% | 33,663 psi | 57% | 2169 fps | 98.3% |
| Bofors RP7 | <<locked>> | 92% | 45,426 psi | 77% | 2333 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,397 psi | 77% | 2283 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,872 psi | 71% | 2310 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,035 psi | 78% | 2431 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 80% | 49,632 psi | 84% | 2369 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 34,650 psi | 59% | 2172 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 92% | 41,814 psi | 71% | 2356 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 92% | 46,021 psi | 78% | 2375 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 41,713 psi | 71% | 2293 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 27,615 psi | 47% | 2041 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,434 psi | 64% | 2264 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 94% | 44,860 psi | 76% | 2421 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,991 psi | 44% | 1312 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,248 psi | 69% | 2254 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 41,205 psi | 70% | 2290 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,840 psi | 63% | 2182 fps | 97.7% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,163 psi | 72% | 2247 fps | 95.3% |
| IMR 4350 | <<locked>> | 96% | 45,237 psi | 77% | 2352 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 41,800 psi | 71% | 2270 fps | 95.1% |
| IMR 4831 | <<locked>> | 88% | 32,489 psi | 55% | 2172 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 38,014 psi | 65% | 2254 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 43,468 psi | 74% | 2290 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 48,892 psi | 83% | 2362 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,943 psi | 68% | 2264 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 41,742 psi | 71% | 2231 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 36,550 psi | 62% | 2185 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 36,027 psi | 61% | 2175 fps | 95.1% |
| Lovex S070 | <<locked>> | 92% | 41,133 psi | 70% | 2290 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 40,277 psi | 69% | 2241 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 40,553 psi | 69% | 2247 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,506 psi | 62% | 2218 fps | 98.1% |
| Norma URP | <<locked>> | 86% | 32,097 psi | 55% | 2169 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 35,984 psi | 61% | 2228 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 38,290 psi | 65% | 2297 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 43,352 psi | 74% | 2297 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,627 psi | 73% | 2313 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,804 psi | 80% | 2333 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,353 psi | 45% | 1345 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,936 psi | 83% | 2362 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 40,350 psi | 69% | 2257 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,696 psi | 66% | 2313 fps | 98.2% |
| ReloadSwiss RS 60 | 41.4 gr | 80% | 31,531 psi | 54% | 2198 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 33,475 psi | 57% | 2224 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 36,463 psi | 62% | 2283 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 44,077 psi | 75% | 2274 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,450 psi | 65% | 2201 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 31,749 psi | 54% | 2123 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 92% | 45,426 psi | 77% | 2333 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 36,027 psi | 61% | 2175 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,943 psi | 68% | 2264 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 36,550 psi | 62% | 2185 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 92% | 41,133 psi | 70% | 2290 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,924 psi | 56% | 2169 fps | 96.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,379 psi | 70% | 2270 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,914 psi | 68% | 2257 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,930 psi | 71% | 2201 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,592 psi | 59% | 2087 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 43,178 psi | 74% | 2264 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 46,760 psi | 80% | 2359 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 41,408 psi | 70% | 2205 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,162 psi | 70% | 2270 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 32,692 psi | 56% | 2129 fps | 97.5% |
| Somchem S365 | <<locked>> | 82% | 25,135 psi | 43% | 2028 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 47,529 psi | 81% | 2254 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,235 psi | 72% | 2195 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,579 psi | 64% | 2185 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,566 psi | 66% | 2198 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,169 psi | 53% | 2080 fps | 98.3% |
| Vihtavuori N160 | <<locked>> | 86% | 33,533 psi | 57% | 2165 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 43,366 psi | 74% | 2287 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 36,811 psi | 63% | 2185 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 32,967 psi | 56% | 2172 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 94% | 31,009 psi | 53% | 2198 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 27,731 psi | 47% | 2011 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 42,670 psi | 73% | 2323 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 41,814 psi | 71% | 2356 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 98% | 29,182 psi | 50% | 2198 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,044 psi | 66% | 2257 fps | 99% |
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 98 powders for .30-06 Spring. loaded with the .308 | 203gr | Peregrine Plainsmaster (VLR-4). Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,569 fps; across all powders the maximum-charge window runs from 1,470 fps to 2,569 fps. Accurate 4350 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 203.0 gr projectile in 0.308" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, 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, Alliant Power Pro 2000-MR rank at the top here: for .30-06 Spring. with the .308 | 203gr | Peregrine Plainsmaster (VLR-4) 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.