Load Specifications
Load data in caliber 7 mm-08 Rem. with .284 | 174gr | Prvi Partizan FMJ BT bullet and 97 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, Hodgdon Superformance 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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 53,374 psi | 89% | 2372 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 51,314 psi | 85% | 2392 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 53,200 psi | 88% | 2451 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,331 psi | 90% | 2438 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 38,290 psi | 64% | 2300 fps | 95.8% |
| Accurate 4064 | <<locked>> | 90% | 51,532 psi | 86% | 2438 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,983 psi | 90% | 2552 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 52,228 psi | 87% | 2464 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 53,098 psi | 88% | 2461 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 51,576 psi | 86% | 2421 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 51,996 psi | 86% | 2398 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 51,271 psi | 85% | 2562 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 52,794 psi | 88% | 2480 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 53,490 psi | 89% | 2500 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,257 psi | 87% | 2556 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,142 psi | 88% | 2592 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,231 psi | 62% | 2333 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,002 psi | 68% | 2464 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 51,677 psi | 86% | 2477 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 53,243 psi | 88% | 2493 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 53,534 psi | 89% | 2467 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 53,243 psi | 88% | 2405 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,708 psi | 89% | 2490 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,156 psi | 87% | 2533 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 92% | 54,273 psi | 90% | 2507 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 98% | 53,737 psi | 89% | 2556 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 94% | 51,343 psi | 85% | 2474 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 86% | 52,736 psi | 88% | 2470 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,370 psi | 80% | 2448 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 51,924 psi | 86% | 2503 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,143 psi | 90% | 2585 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,534 psi | 59% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,780 psi | 89% | 2470 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 52,736 psi | 88% | 2454 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 52,750 psi | 88% | 2448 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 52,721 psi | 88% | 2428 fps | 97.9% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,664 psi | 89% | 2493 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 52,504 psi | 87% | 2454 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,024 psi | 85% | 2500 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 51,721 psi | 86% | 2484 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 51,576 psi | 86% | 2421 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 51,503 psi | 86% | 2441 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 52,127 psi | 87% | 2398 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 52,576 psi | 87% | 2448 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 51,547 psi | 86% | 2448 fps | 98.8% |
| Lovex S070 | <<locked>> | 98% | 52,170 psi | 87% | 2477 fps | 98.1% |
| Norma 201 | <<locked>> | 88% | 54,201 psi | 90% | 2454 fps | 100% |
| Norma 202 | <<locked>> | 86% | 51,547 psi | 86% | 2418 fps | 100% |
| Norma 203B | <<locked>> | 90% | 52,663 psi | 87% | 2490 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 54,128 psi | 90% | 2536 fps | 96.4% |
| Norma URPᴾ | <<locked>> | 100% | 53,403 psi | 89% | 2546 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 90% | 52,823 psi | 88% | 2510 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,982 psi | 86% | 2539 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 51,576 psi | 86% | 2438 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,244 psi | 90% | 2497 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 52,286 psi | 87% | 2421 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,723 psi | 59% | 1516 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,288 psi | 90% | 2444 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 51,474 psi | 86% | 2448 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,824 psi | 89% | 2559 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 53,011 psi | 88% | 2589 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,650 psi | 89% | 2575 fps | 99.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,577 psi | 89% | 2602 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 84% | 52,547 psi | 87% | 2398 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 51,590 psi | 86% | 2415 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 53,113 psi | 88% | 2487 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 53,534 psi | 89% | 2467 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 51,547 psi | 86% | 2448 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 51,503 psi | 86% | 2441 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 52,576 psi | 87% | 2448 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 52,170 psi | 87% | 2477 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 51,488 psi | 86% | 2500 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,272 psi | 89% | 2464 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,940 psi | 90% | 2484 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 52,823 psi | 88% | 2362 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 52,576 psi | 87% | 2359 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 51,779 psi | 86% | 2405 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 52,417 psi | 87% | 2451 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 52,054 psi | 86% | 2359 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 52,721 psi | 88% | 2454 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 53,751 psi | 89% | 2487 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,688 psi | 79% | 2500 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 52,779 psi | 88% | 2326 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 53,026 psi | 88% | 2346 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,302 psi | 90% | 2418 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 52,156 psi | 87% | 2402 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 51,590 psi | 86% | 2425 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 52,562 psi | 87% | 2497 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 51,561 psi | 86% | 2415 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 53,505 psi | 89% | 2441 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 51,503 psi | 86% | 2500 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,335 psi | 67% | 2398 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 52,910 psi | 88% | 2480 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 51,198 psi | 85% | 2461 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 53,737 psi | 89% | 2556 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,141 psi | 55% | 2326 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,606 psi | 89% | 2490 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% | 47,050 psi | 78% | 2290 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,813 psi | 66% | 2231 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,528 psi | 77% | 2362 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,744 psi | 74% | 2297 fps | 95.3% |
| Accurate 3100 | <<locked>> | 98% | 35,940 psi | 60% | 2254 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 37,652 psi | 63% | 2228 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 31,401 psi | 52% | 2169 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 43,265 psi | 72% | 2326 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 36,840 psi | 61% | 2195 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,281 psi | 75% | 2329 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 45,484 psi | 76% | 2313 fps | 100% |
| Alliant Power Pro 2000-MR | 36.6 gr | 80% | 39,320 psi | 65% | 2359 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,492 psi | 61% | 2218 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,044 psi | 65% | 2270 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,097 psi | 53% | 2178 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,328 psi | 52% | 2192 fps | 97.1% |
| Alliant Reloder-23 | <<locked>> | 90% | 27,615 psi | 46% | 2100 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 33,591 psi | 56% | 2303 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,235 psi | 70% | 2329 fps | 98.5% |
| Bofors RP3 | <<locked>> | 80% | 35,940 psi | 60% | 2221 fps | 98.9% |
| Bofors RP7 | <<locked>> | 90% | 44,599 psi | 74% | 2333 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,181 psi | 78% | 2320 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,092 psi | 73% | 2356 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,370 psi | 80% | 2477 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 80% | 36,883 psi | 61% | 2224 fps | 96.6% |
| Hodgdon H414 | <<locked>> | 90% | 41,118 psi | 68% | 2356 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 90% | 45,049 psi | 75% | 2375 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 43,627 psi | 72% | 2333 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,514 psi | 46% | 2044 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,726 psi | 66% | 2316 fps | 99.5% |
| Hodgdon Superformance | 43.8 gr | 92% | 44,034 psi | 73% | 2425 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,469 psi | 44% | 1322 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,916 psi | 70% | 2293 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 43,424 psi | 72% | 2329 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,682 psi | 64% | 2224 fps | 98.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,307 psi | 69% | 2244 fps | 95.4% |
| IMR 4350 | <<locked>> | 92% | 42,032 psi | 70% | 2313 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 86% | 41,234 psi | 69% | 2274 fps | 95.2% |
| IMR 4831 | <<locked>> | 84% | 30,501 psi | 51% | 2133 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 39,972 psi | 66% | 2297 fps | 99% |
| IMR 8208 XBR | <<locked>> | 80% | 45,281 psi | 75% | 2329 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 42,380 psi | 70% | 2310 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,569 psi | 72% | 2270 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 38,653 psi | 64% | 2231 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 35,955 psi | 60% | 2182 fps | 95.3% |
| Lovex S070 | <<locked>> | 90% | 40,799 psi | 68% | 2293 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 42,569 psi | 71% | 2287 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 42,830 psi | 71% | 2293 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,406 psi | 64% | 2260 fps | 98.7% |
| Norma 204 | <<locked>> | 98% | 50,589 psi | 84% | 2484 fps | 95.7% |
| Norma URP | <<locked>> | 84% | 32,010 psi | 53% | 2175 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 37,985 psi | 63% | 2277 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 37,855 psi | 63% | 2300 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 45,150 psi | 75% | 2339 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,701 psi | 74% | 2359 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,095 psi | 82% | 2379 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,716 psi | 44% | 1355 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,836 psi | 84% | 2398 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,784 psi | 66% | 2257 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,046 psi | 68% | 2365 fps | 98.8% |
| ReloadSwiss RS 60 | 36 gr | 80% | 33,359 psi | 55% | 2251 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,388 psi | 55% | 2231 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 35,897 psi | 60% | 2283 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 46,427 psi | 77% | 2316 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,509 psi | 67% | 2244 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 33,953 psi | 56% | 2175 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 90% | 44,599 psi | 74% | 2333 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 35,955 psi | 60% | 2182 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,380 psi | 70% | 2310 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,653 psi | 64% | 2231 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 90% | 40,799 psi | 68% | 2293 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,867 psi | 58% | 2218 fps | 97.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,337 psi | 72% | 2316 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,974 psi | 70% | 2303 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,063 psi | 73% | 2241 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,593 psi | 61% | 2129 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 40,030 psi | 67% | 2224 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 48,762 psi | 81% | 2402 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,526 psi | 72% | 2244 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,018 psi | 71% | 2313 fps | 99.3% |
| Somchem S355 | <<locked>> | 80% | 34,809 psi | 58% | 2178 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 25,309 psi | 42% | 2037 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 49,748 psi | 83% | 2290 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,367 psi | 74% | 2234 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,958 psi | 66% | 2228 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,582 psi | 67% | 2238 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,127 psi | 55% | 2126 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 31,328 psi | 52% | 2126 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 45,426 psi | 75% | 2326 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 38,943 psi | 65% | 2231 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,634 psi | 54% | 2172 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 90% | 29,341 psi | 49% | 2165 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,196 psi | 49% | 2057 fps | 96.3% |
| Winchester 748 | <<locked>> | 80% | 44,817 psi | 74% | 2369 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 41,466 psi | 69% | 2362 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 94% | 27,586 psi | 46% | 2162 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,176 psi | 68% | 2303 fps | 99.4% |
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 113 powders for 7 mm-08 Rem. loaded with the .284 | 174gr | Prvi Partizan FMJ BT. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,602 fps; across all powders the maximum-charge window runs from 1,483 fps to 2,602 fps. Accurate 3100 gives the best case fill at 100 %, and 113 of the 113 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 174.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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, Hodgdon Superformance, ReloadSwiss RS 60 rank at the top here: for 7 mm-08 Rem. with the .284 | 174gr | Prvi Partizan FMJ BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.