Load Specifications
Load data in caliber 7 mm-08 Rem. with .284 | 170gr | Sierra RN Prohunter 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% | 52,823 psi | 88% | 2398 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,462 psi | 90% | 2464 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,172 psi | 90% | 2457 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 52,866 psi | 88% | 2480 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 53,998 psi | 90% | 2464 fps | 97.1% |
| Accurate 4064 | <<locked>> | 92% | 54,244 psi | 90% | 2503 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,403 psi | 89% | 2579 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 51,590 psi | 86% | 2487 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 52,794 psi | 88% | 2490 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,041 psi | 90% | 2487 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 51,401 psi | 85% | 2425 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,346 psi | 90% | 2641 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 52,431 psi | 87% | 2510 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 53,142 psi | 88% | 2530 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,779 psi | 86% | 2582 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 52,620 psi | 87% | 2618 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,854 psi | 61% | 2352 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,799 psi | 68% | 2487 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 51,314 psi | 85% | 2503 fps | 99.6% |
| Bofors RP3 | <<locked>> | 92% | 52,866 psi | 88% | 2523 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 53,127 psi | 88% | 2493 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 52,736 psi | 88% | 2431 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,316 psi | 89% | 2520 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 51,387 psi | 85% | 2556 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 92% | 53,824 psi | 89% | 2533 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 98% | 52,736 psi | 88% | 2575 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 96% | 53,983 psi | 90% | 2543 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 86% | 52,127 psi | 87% | 2497 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,892 psi | 80% | 2470 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 51,126 psi | 85% | 2526 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 53,911 psi | 90% | 2615 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,375 psi | 59% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,505 psi | 89% | 2500 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 52,069 psi | 87% | 2480 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 52,112 psi | 87% | 2470 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 52,460 psi | 87% | 2454 fps | 97.7% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,214 psi | 88% | 2516 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 94% | 51,822 psi | 86% | 2474 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,488 psi | 84% | 2523 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 51,039 psi | 85% | 2507 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 54,041 psi | 90% | 2487 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,331 psi | 90% | 2477 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 51,184 psi | 85% | 2470 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 51,576 psi | 86% | 2425 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 51,880 psi | 86% | 2470 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,157 psi | 90% | 2516 fps | 99% |
| Lovex S070 | <<locked>> | 98% | 51,706 psi | 86% | 2500 fps | 97.8% |
| Norma 201 | <<locked>> | 88% | 53,911 psi | 90% | 2484 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,389 psi | 90% | 2484 fps | 100% |
| Norma 203B | <<locked>> | 90% | 52,315 psi | 87% | 2516 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 53,534 psi | 89% | 2556 fps | 96.1% |
| Norma URPᴾ | <<locked>> | 100% | 52,504 psi | 87% | 2566 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 52,373 psi | 87% | 2539 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,387 psi | 85% | 2562 fps | 98.4% |
| Ramshot TAC | <<locked>> | 84% | 50,952 psi | 85% | 2461 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 86% | 53,867 psi | 89% | 2526 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 51,692 psi | 86% | 2448 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,882 psi | 60% | 1539 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,664 psi | 89% | 2470 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,143 psi | 90% | 2516 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,374 psi | 89% | 2589 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 52,504 psi | 87% | 2615 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,939 psi | 88% | 2602 fps | 99.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,982 psi | 88% | 2621 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 84% | 52,011 psi | 86% | 2428 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,404 psi | 90% | 2484 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 52,663 psi | 87% | 2513 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 53,127 psi | 88% | 2493 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,157 psi | 90% | 2516 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 86% | 51,184 psi | 85% | 2470 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 51,880 psi | 86% | 2470 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 51,706 psi | 86% | 2500 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,114 psi | 90% | 2569 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 52,881 psi | 88% | 2490 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,592 psi | 89% | 2510 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 52,272 psi | 87% | 2385 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 52,344 psi | 87% | 2388 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 51,358 psi | 85% | 2428 fps | 97.4% |
| Somchem S321 | <<locked>> | 82% | 51,750 psi | 86% | 2474 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 51,517 psi | 86% | 2385 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 52,315 psi | 87% | 2480 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 52,982 psi | 88% | 2510 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,152 psi | 78% | 2526 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 52,330 psi | 87% | 2356 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 52,475 psi | 87% | 2372 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,056 psi | 90% | 2451 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 51,503 psi | 86% | 2425 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,360 psi | 90% | 2490 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 51,677 psi | 86% | 2516 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 86% | 54,462 psi | 90% | 2487 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 52,794 psi | 88% | 2464 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,027 psi | 90% | 2569 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,827 psi | 66% | 2418 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 52,330 psi | 87% | 2503 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,418 psi | 90% | 2533 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 53,113 psi | 88% | 2579 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,779 psi | 54% | 2343 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,214 psi | 88% | 2516 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% | 46,572 psi | 77% | 2316 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,053 psi | 85% | 2421 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,349 psi | 65% | 2257 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,948 psi | 76% | 2385 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,498 psi | 74% | 2320 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 37,202 psi | 62% | 2251 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 32,909 psi | 55% | 2231 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 42,801 psi | 71% | 2349 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 36,492 psi | 61% | 2218 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,817 psi | 74% | 2356 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 44,976 psi | 75% | 2339 fps | 100% |
| Alliant Power Pro 2000-MR | 36.9 gr | 80% | 38,812 psi | 64% | 2375 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,085 psi | 60% | 2241 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,595 psi | 64% | 2290 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 31,720 psi | 53% | 2195 fps | 95% |
| Alliant Reloder-17 | 36.3 gr | 80% | 30,951 psi | 51% | 2208 fps | 96.7% |
| Alliant Reloder-23 | <<locked>> | 92% | 28,993 psi | 48% | 2162 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 35,447 psi | 59% | 2372 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,018 psi | 70% | 2356 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 35,462 psi | 59% | 2241 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 44,367 psi | 74% | 2356 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,760 psi | 78% | 2346 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,511 psi | 72% | 2379 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,051 psi | 80% | 2507 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 80% | 36,419 psi | 61% | 2244 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 90% | 40,828 psi | 68% | 2379 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 47,761 psi | 79% | 2448 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,178 psi | 72% | 2359 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,383 psi | 45% | 2067 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,204 psi | 65% | 2336 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 92% | 43,598 psi | 72% | 2448 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,397 psi | 44% | 1342 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,481 psi | 69% | 2316 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 42,946 psi | 71% | 2356 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,305 psi | 64% | 2247 fps | 98% |
| IMR 4166 Enduron | <<locked>> | 80% | 40,944 psi | 68% | 2267 fps | 95% |
| IMR 4350 | <<locked>> | 94% | 44,150 psi | 73% | 2379 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 43,424 psi | 72% | 2339 fps | 95.6% |
| IMR 4831 | <<locked>> | 86% | 32,169 psi | 53% | 2198 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 39,508 psi | 66% | 2320 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 44,817 psi | 74% | 2356 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 50,865 psi | 85% | 2431 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,872 psi | 70% | 2333 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,192 psi | 72% | 2293 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 38,247 psi | 64% | 2254 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 37,637 psi | 63% | 2244 fps | 95.6% |
| Lovex S070 | <<locked>> | 90% | 40,495 psi | 67% | 2316 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 42,148 psi | 70% | 2310 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 42,380 psi | 70% | 2316 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,956 psi | 63% | 2283 fps | 98.4% |
| Norma 204 | <<locked>> | 98% | 50,082 psi | 83% | 2507 fps | 95.3% |
| Norma URP | <<locked>> | 86% | 33,547 psi | 56% | 2234 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 37,463 psi | 62% | 2293 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 92% | 39,755 psi | 66% | 2365 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 44,933 psi | 75% | 2365 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,164 psi | 73% | 2382 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,559 psi | 81% | 2402 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,643 psi | 44% | 1375 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,328 psi | 84% | 2425 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,291 psi | 65% | 2277 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,451 psi | 67% | 2385 fps | 98.5% |
| ReloadSwiss RS 60 | 36.3 gr | 80% | 32,924 psi | 55% | 2267 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 32,866 psi | 55% | 2247 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 35,592 psi | 59% | 2306 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 46,035 psi | 76% | 2343 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,089 psi | 67% | 2267 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 33,518 psi | 56% | 2195 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 44,367 psi | 74% | 2356 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 37,637 psi | 63% | 2244 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,872 psi | 70% | 2333 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,247 psi | 64% | 2254 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 40,495 psi | 67% | 2316 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,447 psi | 57% | 2238 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,091 psi | 72% | 2343 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,495 psi | 69% | 2326 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,685 psi | 73% | 2267 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,260 psi | 60% | 2152 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 42,235 psi | 70% | 2290 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 48,515 psi | 81% | 2428 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,120 psi | 72% | 2267 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,801 psi | 71% | 2339 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 34,418 psi | 57% | 2201 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 24,990 psi | 42% | 2051 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 49,371 psi | 82% | 2316 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,990 psi | 73% | 2260 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,566 psi | 66% | 2251 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,176 psi | 67% | 2260 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,735 psi | 54% | 2146 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 33,069 psi | 55% | 2192 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 44,947 psi | 75% | 2352 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 38,537 psi | 64% | 2251 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,430 psi | 54% | 2195 fps | 95% |
| Vihtavuori N555 | <<locked>> | 92% | 30,879 psi | 51% | 2228 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,051 psi | 48% | 2080 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 44,570 psi | 74% | 2395 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 40,828 psi | 68% | 2379 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 96% | 28,863 psi | 48% | 2224 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,669 psi | 68% | 2326 fps | 99.3% |
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 7 mm-08 Rem. loaded with the .284 | 170gr | Sierra RN Prohunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,641 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,641 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 (415 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.284" calls for a 1:12.5 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 7 mm-08 Rem. with the .284 | 170gr | Sierra RN Prohunter 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.