Load Specifications
Load data in caliber 7 mm-08 Rem. with .284 | 150gr | Berger Classic Hybrid Hunter 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 Power Pro 2000-MR, ReloadSwiss RS 60 and ReloadSwiss RS 52.
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>> | 86% | 51,111 psi | 85% | 2543 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 52,736 psi | 88% | 2608 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 51,866 psi | 86% | 2602 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 54,302 psi | 90% | 2667 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 51,822 psi | 86% | 2644 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 47,195 psi | 78% | 2648 fps | 98.1% |
| Accurate LT-30 | <<locked>> | 82% | 54,070 psi | 90% | 2533 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 53,374 psi | 89% | 2674 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 96% | 54,288 psi | 90% | 2667 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 52,591 psi | 87% | 2628 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 52,620 psi | 87% | 2615 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 54,259 psi | 90% | 2730 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 52,634 psi | 87% | 2772 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 53,824 psi | 89% | 2690 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 54,244 psi | 90% | 2589 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 51,256 psi | 85% | 2661 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,673 psi | 78% | 2651 fps | 98.1% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 54,027 psi | 90% | 2799 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 53,330 psi | 89% | 2536 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 53,040 psi | 88% | 2687 fps | 99% |
| Bofors RP3 | <<locked>> | 96% | 54,041 psi | 90% | 2703 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 86% | 51,721 psi | 86% | 2575 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 51,285 psi | 85% | 2657 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 53,272 psi | 89% | 2749 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 84% | 53,563 psi | 89% | 2635 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 54,418 psi | 90% | 2657 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 52,170 psi | 87% | 2667 fps | 98.3% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 50,618 psi | 84% | 2694 fps | 96% |
| Hodgdon H4895 | <<locked>> | 90% | 53,824 psi | 89% | 2684 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,033 psi | 71% | 2546 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 52,562 psi | 87% | 2713 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,867 psi | 58% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 52,040 psi | 86% | 2641 fps | 99.7% |
| IMR 3031 | <<locked>> | 90% | 53,229 psi | 88% | 2671 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 54,041 psi | 90% | 2654 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 90% | 51,271 psi | 85% | 2582 fps | 95.9% |
| IMR 4198 | <<locked>> | 82% | 51,474 psi | 86% | 2510 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 53,621 psi | 89% | 2651 fps | 96.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,991 psi | 75% | 2592 fps | 97.7% |
| IMR 4895 | <<locked>> | 92% | 52,518 psi | 87% | 2694 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 88% | 52,591 psi | 87% | 2628 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 52,866 psi | 88% | 2621 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 52,475 psi | 87% | 2651 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 53,853 psi | 89% | 2612 fps | 99.6% |
| Lovex S062 | <<locked>> | 94% | 53,505 psi | 89% | 2654 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 52,214 psi | 87% | 2641 fps | 97.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 49,647 psi | 82% | 2618 fps | 95.9% |
| Norma 201 | <<locked>> | 90% | 52,388 psi | 87% | 2625 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 52,663 psi | 87% | 2631 fps | 100% |
| Norma 203B | <<locked>> | 94% | 53,766 psi | 89% | 2700 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 47,007 psi | 78% | 2641 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 94% | 53,853 psi | 89% | 2720 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 46,354 psi | 77% | 2628 fps | 95.9% |
| Ramshot TAC | <<locked>> | 88% | 53,388 psi | 89% | 2648 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 88% | 52,417 psi | 87% | 2664 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 86% | 53,969 psi | 90% | 2635 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,259 psi | 59% | 1637 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 52,344 psi | 87% | 2615 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 52,620 psi | 87% | 2644 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 54,418 psi | 90% | 2772 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 54,070 psi | 90% | 2802 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,920 psi | 78% | 2667 fps | 97.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,834 psi | 79% | 2684 fps | 97.2% |
| Rottweil R 901 | <<locked>> | 88% | 53,301 psi | 89% | 2608 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 52,852 psi | 88% | 2621 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 53,519 psi | 89% | 2687 fps | 99.9% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 52,214 psi | 87% | 2641 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 90% | 52,475 psi | 87% | 2651 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 53,505 psi | 89% | 2654 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 49,647 psi | 82% | 2618 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 52,315 psi | 87% | 2589 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 52,083 psi | 87% | 2703 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 52,083 psi | 87% | 2569 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 51,010 psi | 85% | 2618 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 51,837 psi | 86% | 2648 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 54,418 psi | 90% | 2575 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 54,041 psi | 90% | 2572 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 52,939 psi | 88% | 2598 fps | 96.3% |
| Somchem S321 | <<locked>> | 86% | 53,780 psi | 89% | 2664 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 53,534 psi | 89% | 2575 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 54,172 psi | 90% | 2664 fps | 99.6% |
| Somchem S355 | <<locked>> | 98% | 54,389 psi | 90% | 2694 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,771 psi | 69% | 2592 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 86% | 54,085 psi | 90% | 2543 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 54,375 psi | 90% | 2562 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 51,735 psi | 86% | 2592 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 53,214 psi | 88% | 2612 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 52,272 psi | 87% | 2625 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,617 psi | 82% | 2641 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 88% | 53,403 psi | 89% | 2635 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 51,329 psi | 85% | 2608 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,457 psi | 81% | 2644 fps | 97.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,691 psi | 84% | 2628 fps | 99.7% |
| Winchester 748 | <<locked>> | 88% | 52,286 psi | 87% | 2674 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 50,966 psi | 85% | 2700 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 90% | 51,547 psi | 86% | 2657 fps | 99.7% |
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% | 42,496 psi | 71% | 2415 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,296 psi | 77% | 2516 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,099 psi | 58% | 2336 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,582 psi | 69% | 2474 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 33,214 psi | 55% | 2323 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 35,679 psi | 59% | 2434 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 51,068 psi | 85% | 2493 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 39,218 psi | 65% | 2428 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 35,534 psi | 59% | 2336 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,234 psi | 69% | 2441 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 40,248 psi | 67% | 2441 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 47,819 psi | 79% | 2628 fps | 99.4% |
| Alliant Power Pro 2000-MR | 38.1 gr | 82% | 37,724 psi | 63% | 2490 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,460 psi | 54% | 2306 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,225 psi | 80% | 2507 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,114 psi | 58% | 2362 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 36,651 psi | 61% | 2444 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 84% | 31,966 psi | 53% | 2362 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,850 psi | 83% | 2490 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,942 psi | 63% | 2421 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 31,618 psi | 53% | 2300 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,076 psi | 72% | 2434 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,189 psi | 65% | 2454 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,091 psi | 72% | 2579 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 80% | 46,818 psi | 78% | 2536 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 47,456 psi | 79% | 2559 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 40,059 psi | 67% | 2457 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 98% | 47,442 psi | 79% | 2641 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 39,479 psi | 66% | 2441 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,430 psi | 52% | 2297 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,259 psi | 59% | 2402 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,730 psi | 43% | 1421 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,782 psi | 63% | 2392 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 38,479 psi | 64% | 2444 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,824 psi | 58% | 2316 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 48,124 psi | 80% | 2533 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 48,863 psi | 81% | 2474 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 47,543 psi | 79% | 2552 fps | 95% |
| IMR 4831 | <<locked>> | 94% | 37,028 psi | 62% | 2444 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 35,897 psi | 60% | 2392 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 80% | 41,234 psi | 69% | 2441 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 46,093 psi | 77% | 2520 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 37,478 psi | 62% | 2408 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 39,740 psi | 66% | 2375 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 34,621 psi | 58% | 2323 fps | 97.5% |
| Lovex S065 | <<locked>> | 94% | 43,685 psi | 73% | 2500 fps | 95.7% |
| Lovex S070 | <<locked>> | 98% | 46,557 psi | 77% | 2569 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 38,348 psi | 64% | 2388 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 38,479 psi | 64% | 2402 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 34,534 psi | 57% | 2352 fps | 96.1% |
| Norma URP | <<locked>> | 92% | 36,593 psi | 61% | 2441 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 33,736 psi | 56% | 2356 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 98% | 43,482 psi | 72% | 2575 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 41,046 psi | 68% | 2438 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,958 psi | 66% | 2454 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,425 psi | 74% | 2484 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,179 psi | 43% | 1460 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,992 psi | 76% | 2520 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 46,325 psi | 77% | 2543 fps | 95.6% |
| ReloadSwiss RS 52 | 36 gr | 80% | 36,085 psi | 60% | 2448 fps | 95.9% |
| ReloadSwiss RS 60 | 36.6 gr | 80% | 29,994 psi | 50% | 2320 fps | 97% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 38,159 psi | 63% | 2503 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 42,018 psi | 70% | 2572 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 42,119 psi | 70% | 2434 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,506 psi | 61% | 2343 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 29,921 psi | 50% | 2251 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 43,685 psi | 73% | 2500 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,478 psi | 62% | 2408 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 34,621 psi | 58% | 2323 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 98% | 46,557 psi | 77% | 2569 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,602 psi | 81% | 2536 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,141 psi | 55% | 2346 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,023 psi | 81% | 2526 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,972 psi | 65% | 2408 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,666 psi | 63% | 2398 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,103 psi | 67% | 2356 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,996 psi | 55% | 2231 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 49,400 psi | 82% | 2546 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 44,077 psi | 73% | 2513 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 39,494 psi | 66% | 2359 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,624 psi | 64% | 2408 fps | 97.2% |
| Somchem S355 | <<locked>> | 80% | 30,966 psi | 51% | 2260 fps | 95.3% |
| Somchem S365 | <<locked>> | 88% | 28,631 psi | 48% | 2283 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 45,440 psi | 75% | 2421 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,248 psi | 67% | 2356 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,578 psi | 59% | 2339 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,361 psi | 60% | 2343 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 29,399 psi | 49% | 2208 fps | 96.3% |
| Vihtavuori N160 | <<locked>> | 92% | 38,334 psi | 64% | 2441 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 40,886 psi | 68% | 2434 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 34,867 psi | 58% | 2329 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 37,565 psi | 62% | 2444 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,995 psi | 53% | 2274 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 40,089 psi | 67% | 2474 fps | 99.3% |
| Winchester 760 | <<locked>> | 98% | 47,732 psi | 79% | 2648 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,927 psi | 61% | 2402 fps | 97.4% |
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 96 powders for 7 mm-08 Rem. loaded with the .284 | 150gr | Berger Classic Hybrid Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,802 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,802 fps. Accurate 4350 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 (415 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for 7 mm-08 Rem. with the .284 | 150gr | Berger Classic Hybrid Hunter 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.