Load Specifications
Load data in caliber .30 R Blaser with .308 | 206gr | Peregrine Glider (Glider GRM) bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 51,909 psi | 88% | 2382 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 51,924 psi | 88% | 2428 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 52,199 psi | 89% | 2398 fps | 97.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,409 psi | 72% | 2356 fps | 97.7% |
| Accurate 4064 | <<locked>> | 88% | 51,895 psi | 88% | 2425 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 51,808 psi | 88% | 2507 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 52,605 psi | 90% | 2457 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 50,633 psi | 86% | 2418 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 50,517 psi | 86% | 2490 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 51,648 psi | 88% | 2411 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 52,417 psi | 89% | 2382 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 52,069 psi | 89% | 2562 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 50,502 psi | 86% | 2434 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 50,908 psi | 87% | 2454 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 50,241 psi | 86% | 2516 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 50,865 psi | 87% | 2543 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 49,443 psi | 84% | 2480 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,480 psi | 69% | 2382 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 35,650 psi | 61% | 2293 fps | 96.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,513 psi | 77% | 2533 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 52,359 psi | 89% | 2474 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 50,676 psi | 86% | 2448 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 50,865 psi | 87% | 2425 fps | 97.8% |
| Hodgdon BL-C2 | <<locked>> | 82% | 50,720 psi | 86% | 2434 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 51,532 psi | 88% | 2457 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 92% | 53,011 psi | 90% | 2530 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 94% | 50,314 psi | 86% | 2451 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 84% | 53,156 psi | 90% | 2464 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,055 psi | 90% | 2490 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 52,721 psi | 90% | 2497 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 51,532 psi | 88% | 2539 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,578 psi | 61% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 50,024 psi | 85% | 2408 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 51,837 psi | 88% | 2428 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 52,373 psi | 89% | 2431 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 51,982 psi | 88% | 2415 fps | 98.4% |
| IMR 4350 | <<locked>> | 96% | 51,503 psi | 88% | 2454 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 92% | 53,026 psi | 90% | 2454 fps | 98.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,908 psi | 85% | 2467 fps | 99.8% |
| IMR 4895 | <<locked>> | 86% | 52,228 psi | 89% | 2477 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 51,648 psi | 88% | 2411 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 52,228 psi | 89% | 2431 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 52,069 psi | 89% | 2392 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 53,026 psi | 90% | 2438 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 52,156 psi | 89% | 2448 fps | 99.3% |
| Lovex S070 | <<locked>> | 94% | 49,879 psi | 85% | 2434 fps | 98.4% |
| Norma 201 | <<locked>> | 84% | 51,300 psi | 87% | 2408 fps | 100% |
| Norma 202 | <<locked>> | 84% | 51,764 psi | 88% | 2405 fps | 100% |
| Norma 203B | <<locked>> | 86% | 50,183 psi | 85% | 2441 fps | 100% |
| Norma 204 | <<locked>> | 96% | 51,837 psi | 88% | 2493 fps | 96.9% |
| Norma MRPᴾ | <<locked>> | 100% | 45,455 psi | 77% | 2493 fps | 97.4% |
| Norma URP | <<locked>> | 96% | 51,343 psi | 87% | 2500 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 86% | 50,328 psi | 86% | 2461 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 50,241 psi | 86% | 2500 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 51,648 psi | 88% | 2431 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 51,445 psi | 88% | 2448 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,172 psi | 62% | 1539 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 51,909 psi | 88% | 2444 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 51,227 psi | 87% | 2507 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 50,807 psi | 86% | 2539 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 51,895 psi | 88% | 2533 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 51,343 psi | 87% | 2559 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 82% | 52,257 psi | 89% | 2388 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 51,793 psi | 88% | 2408 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 50,531 psi | 86% | 2438 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 52,460 psi | 89% | 2470 fps | 95.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,138 psi | 82% | 2464 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 92% | 50,865 psi | 87% | 2425 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 52,156 psi | 89% | 2448 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 52,228 psi | 89% | 2431 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 53,026 psi | 90% | 2438 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 49,879 psi | 85% | 2434 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 52,562 psi | 89% | 2497 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 50,082 psi | 85% | 2411 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 51,097 psi | 87% | 2434 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 52,794 psi | 90% | 2352 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 53,156 psi | 90% | 2352 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 52,388 psi | 89% | 2408 fps | 98.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 47,674 psi | 81% | 2461 fps | 96.5% |
| Somchem S335 | <<locked>> | 84% | 52,214 psi | 89% | 2352 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 49,763 psi | 85% | 2402 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 51,126 psi | 87% | 2438 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,750 psi | 90% | 2543 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,791 psi | 83% | 2448 fps | 97.5% |
| Unknown powder | <<locked>> | 94% | 52,460 psi | 89% | 2507 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 86% | 52,707 psi | 90% | 2336 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 51,677 psi | 88% | 2372 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 51,822 psi | 88% | 2385 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 52,518 psi | 89% | 2425 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 52,721 psi | 90% | 2480 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 86% | 51,343 psi | 87% | 2408 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 53,113 psi | 90% | 2523 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,904 psi | 76% | 2451 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 50,357 psi | 86% | 2431 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 53,011 psi | 90% | 2530 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,187 psi | 62% | 2402 fps | 99.9% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,169 psi | 87% | 2467 fps | 96.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 42,525 psi | 72% | 2260 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,602 psi | 83% | 2385 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 42,888 psi | 73% | 2257 fps | 95.8% |
| Accurate 3100 | <<locked>> | 94% | 34,505 psi | 59% | 2211 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 40,277 psi | 69% | 2260 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 29,501 psi | 50% | 2113 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 46,267 psi | 79% | 2365 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 39,291 psi | 67% | 2238 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 44,541 psi | 76% | 2395 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,428 psi | 82% | 2369 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,226 psi | 84% | 2346 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,409 psi | 72% | 2408 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,044 psi | 66% | 2257 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,901 psi | 71% | 2313 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,284 psi | 52% | 2133 fps | 95.6% |
| Alliant Reloder-17 | 45.8 gr | 80% | 33,576 psi | 57% | 2238 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 96% | 43,468 psi | 74% | 2385 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,150 psi | 45% | 2054 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 98% | 33,460 psi | 57% | 2244 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 90% | 31,923 psi | 54% | 2254 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,585 psi | 78% | 2375 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 38,667 psi | 66% | 2260 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 39,479 psi | 67% | 2238 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,514 psi | 81% | 2392 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,581 psi | 67% | 2267 fps | 98% |
| Hodgdon H414 | <<locked>> | 82% | 37,391 psi | 64% | 2274 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 88% | 41,713 psi | 71% | 2310 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 46,731 psi | 80% | 2375 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,644 psi | 47% | 2044 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,495 psi | 69% | 2316 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 38,725 psi | 66% | 2320 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,411 psi | 45% | 1339 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,611 psi | 71% | 2280 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 42,888 psi | 73% | 2306 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,580 psi | 66% | 2218 fps | 98.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 38,174 psi | 65% | 2185 fps | 95.3% |
| IMR 4350 | <<locked>> | 88% | 39,842 psi | 68% | 2267 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 82% | 38,870 psi | 66% | 2228 fps | 95.4% |
| IMR 4831 | <<locked>> | 84% | 29,747 psi | 51% | 2103 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 42,946 psi | 73% | 2339 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 48,428 psi | 82% | 2369 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,426 psi | 77% | 2343 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,108 psi | 78% | 2306 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 41,147 psi | 70% | 2267 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 33,808 psi | 58% | 2133 fps | 95.4% |
| Lovex S070 | <<locked>> | 84% | 36,303 psi | 62% | 2201 fps | 95% |
| Norma 201 | <<locked>> | 80% | 45,266 psi | 77% | 2323 fps | 100% |
| Norma 202 | <<locked>> | 80% | 45,701 psi | 78% | 2323 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,249 psi | 70% | 2303 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 45,121 psi | 77% | 2392 fps | 95.3% |
| Norma MRP | <<locked>> | 96% | 39,610 psi | 67% | 2385 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 30,066 psi | 51% | 2119 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 41,104 psi | 70% | 2320 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 35,897 psi | 61% | 2254 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 48,240 psi | 82% | 2382 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,993 psi | 82% | 2398 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,789 psi | 46% | 1371 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,958 psi | 68% | 2254 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,440 psi | 76% | 2408 fps | 99.6% |
| ReloadSwiss RS 60 | 45.8 gr | 80% | 35,824 psi | 61% | 2293 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 31,488 psi | 54% | 2178 fps | 95.8% |
| ReloadSwiss RS 70 | 48.9 gr | 84% | 33,924 psi | 58% | 2238 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 49,008 psi | 83% | 2346 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,859 psi | 73% | 2277 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 36,230 psi | 62% | 2211 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 98% | 49,139 psi | 84% | 2425 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 96% | 42,047 psi | 72% | 2365 fps | 95% |
| Rottweil R 907 | <<locked>> | 84% | 39,479 psi | 67% | 2238 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 33,808 psi | 58% | 2133 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,426 psi | 77% | 2343 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,147 psi | 70% | 2267 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 36,303 psi | 62% | 2201 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,391 psi | 64% | 2257 fps | 98.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,673 psi | 79% | 2362 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,701 psi | 76% | 2339 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,514 psi | 79% | 2270 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,769 psi | 66% | 2159 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 37,623 psi | 64% | 2175 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 44,570 psi | 76% | 2411 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 46,267 psi | 79% | 2274 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,383 psi | 79% | 2356 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 37,246 psi | 63% | 2218 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 26,963 psi | 46% | 2080 fps | 97.7% |
| Somchem S385 | <<locked>> | 94% | 39,943 psi | 68% | 2303 fps | 95.3% |
| Unknown powder | <<locked>> | 80% | 32,793 psi | 56% | 2169 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 44,005 psi | 75% | 2224 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,656 psi | 73% | 2254 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,598 psi | 73% | 2257 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,604 psi | 54% | 2087 fps | 99% |
| Vihtavuori N160 | <<locked>> | 80% | 32,735 psi | 56% | 2149 fps | 96.4% |
| Vihtavuori N540 | <<locked>> | 80% | 42,322 psi | 72% | 2280 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,301 psi | 57% | 2188 fps | 96.5% |
| Vihtavuori N555 | <<locked>> | 86% | 28,021 psi | 48% | 2116 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,198 psi | 53% | 2103 fps | 98% |
| Winchester 760 | <<locked>> | 82% | 37,391 psi | 64% | 2274 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,078 psi | 44% | 2119 fps | 95.8% |
| Winchester Supreme 780 | <<locked>> | 96% | 44,266 psi | 75% | 2365 fps | 95.2% |
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 97 powders for .30 R Blaser loaded with the .308 | 206gr | Peregrine Glider (Glider GRM). Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,562 fps; across all powders the maximum-charge window runs from 1,499 fps to 2,562 fps. Accurate 3100 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 206.0 gr projectile in 0.308" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .30 R Blaser with the .308 | 206gr | Peregrine Glider (Glider GRM) 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.