
Load Specifications
Load data in caliber 7 mm-08 Rem. with .284 | 150gr | Nosler Partition 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 54,273 psi | 90% | 2582 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 52,808 psi | 88% | 2605 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 51,488 psi | 86% | 2595 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,983 psi | 90% | 2657 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 51,474 psi | 86% | 2638 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,905 psi | 78% | 2641 fps | 98% |
| Accurate LT-30 | <<locked>> | 82% | 54,114 psi | 90% | 2530 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 53,113 psi | 88% | 2667 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 96% | 54,056 psi | 90% | 2661 fps | 99.3% |
| ADI AR 2219 | <<locked>> | 82% | 54,433 psi | 90% | 2641 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 52,663 psi | 87% | 2628 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 52,257 psi | 87% | 2608 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 53,896 psi | 90% | 2720 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 52,373 psi | 87% | 2766 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 53,563 psi | 89% | 2684 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 54,273 psi | 90% | 2589 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 54,375 psi | 90% | 2703 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,427 psi | 77% | 2641 fps | 98% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 53,809 psi | 89% | 2792 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 53,084 psi | 88% | 2530 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 52,750 psi | 88% | 2680 fps | 98.9% |
| Bofors RP3 | <<locked>> | 96% | 53,708 psi | 89% | 2697 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 86% | 51,401 psi | 85% | 2566 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 51,358 psi | 85% | 2654 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 52,968 psi | 88% | 2743 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 84% | 53,229 psi | 88% | 2625 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 54,056 psi | 90% | 2648 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 51,866 psi | 86% | 2657 fps | 98.3% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 50,386 psi | 84% | 2687 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 90% | 53,548 psi | 89% | 2677 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,859 psi | 71% | 2536 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 52,330 psi | 87% | 2707 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,737 psi | 58% | 1594 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 51,706 psi | 86% | 2631 fps | 99.6% |
| IMR 3031 | <<locked>> | 90% | 52,895 psi | 88% | 2664 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 53,708 psi | 89% | 2648 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 92% | 54,346 psi | 90% | 2625 fps | 96.5% |
| IMR 4198 | <<locked>> | 82% | 51,474 psi | 86% | 2507 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 53,359 psi | 89% | 2641 fps | 96.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,730 psi | 74% | 2585 fps | 97.6% |
| IMR 4895 | <<locked>> | 92% | 52,170 psi | 87% | 2684 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 88% | 52,663 psi | 87% | 2628 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 52,547 psi | 87% | 2615 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 52,112 psi | 87% | 2644 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 53,548 psi | 89% | 2602 fps | 99.6% |
| Lovex S062 | <<locked>> | 94% | 53,243 psi | 88% | 2648 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 51,938 psi | 86% | 2631 fps | 97.5% |
| Lovex S070ᴾ | <<locked>> | 100% | 49,385 psi | 82% | 2612 fps | 95.8% |
| Norma 201 | <<locked>> | 90% | 52,054 psi | 86% | 2618 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 52,330 psi | 87% | 2625 fps | 100% |
| Norma 203B | <<locked>> | 94% | 53,447 psi | 89% | 2694 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 46,746 psi | 78% | 2635 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 94% | 53,577 psi | 89% | 2713 fps | 99.5% |
| Ramshot TAC | <<locked>> | 88% | 53,113 psi | 88% | 2641 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 88% | 52,112 psi | 87% | 2657 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 86% | 53,664 psi | 89% | 2628 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,128 psi | 58% | 1631 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 52,402 psi | 87% | 2615 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 52,359 psi | 87% | 2638 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 54,128 psi | 90% | 2762 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 53,751 psi | 89% | 2795 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,702 psi | 78% | 2661 fps | 97.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,659 psi | 79% | 2677 fps | 97.1% |
| Rottweil R 901 | <<locked>> | 88% | 53,388 psi | 89% | 2608 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 52,489 psi | 87% | 2615 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 53,185 psi | 88% | 2680 fps | 99.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 51,938 psi | 86% | 2631 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 52,112 psi | 87% | 2644 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 53,243 psi | 88% | 2648 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 49,385 psi | 82% | 2612 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 52,025 psi | 86% | 2582 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 51,808 psi | 86% | 2694 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 51,677 psi | 86% | 2562 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 51,082 psi | 85% | 2615 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 51,561 psi | 86% | 2641 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 54,099 psi | 90% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 53,780 psi | 89% | 2566 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 52,692 psi | 88% | 2592 fps | 96.2% |
| Somchem S321 | <<locked>> | 86% | 53,447 psi | 89% | 2657 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 53,214 psi | 88% | 2566 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 53,882 psi | 90% | 2657 fps | 99.5% |
| Somchem S355 | <<locked>> | 98% | 54,070 psi | 90% | 2684 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,524 psi | 69% | 2582 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 86% | 54,114 psi | 90% | 2539 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 54,056 psi | 90% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 51,372 psi | 85% | 2585 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 52,910 psi | 88% | 2605 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 52,011 psi | 86% | 2618 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,356 psi | 82% | 2635 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 88% | 53,084 psi | 88% | 2625 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 51,097 psi | 85% | 2602 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,211 psi | 80% | 2635 fps | 97.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,488 psi | 84% | 2621 fps | 99.6% |
| Winchester 748 | <<locked>> | 88% | 52,344 psi | 87% | 2671 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 50,734 psi | 84% | 2694 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 90% | 51,242 psi | 85% | 2648 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% | 42,438 psi | 71% | 2411 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,948 psi | 76% | 2507 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,809 psi | 58% | 2329 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,292 psi | 69% | 2467 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 32,924 psi | 55% | 2316 fps | 99.3% |
| Accurate 4350 | <<locked>> | 94% | 38,087 psi | 63% | 2480 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 50,691 psi | 84% | 2484 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,957 psi | 65% | 2421 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 35,244 psi | 59% | 2326 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 50,865 psi | 85% | 2595 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,959 psi | 68% | 2434 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 40,219 psi | 67% | 2438 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 47,413 psi | 79% | 2621 fps | 99.4% |
| Alliant Power Pro 2000-MR | 37.9 gr | 82% | 37,507 psi | 62% | 2480 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,184 psi | 53% | 2297 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,848 psi | 79% | 2500 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,853 psi | 58% | 2352 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 92% | 36,695 psi | 61% | 2441 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 84% | 31,763 psi | 53% | 2352 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,559 psi | 82% | 2480 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,666 psi | 63% | 2415 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 31,618 psi | 53% | 2297 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,091 psi | 72% | 2434 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,204 psi | 65% | 2451 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,757 psi | 71% | 2569 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 80% | 46,804 psi | 78% | 2533 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 47,500 psi | 79% | 2556 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 39,813 psi | 66% | 2451 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 98% | 47,195 psi | 78% | 2635 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 39,204 psi | 65% | 2431 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,430 psi | 52% | 2293 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,969 psi | 58% | 2392 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 43% | 1424 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,797 psi | 63% | 2388 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 38,145 psi | 63% | 2434 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,838 psi | 58% | 2313 fps | 95.5% |
| IMR 4166 Enduron | <<locked>> | 88% | 47,848 psi | 79% | 2523 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 48,472 psi | 81% | 2467 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 50,067 psi | 83% | 2592 fps | 95.5% |
| IMR 4831 | <<locked>> | 94% | 36,825 psi | 61% | 2434 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 35,621 psi | 59% | 2382 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 80% | 40,959 psi | 68% | 2434 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 45,745 psi | 76% | 2513 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 37,492 psi | 62% | 2405 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 39,740 psi | 66% | 2372 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 34,635 psi | 58% | 2320 fps | 97.5% |
| Lovex S065 | <<locked>> | 94% | 43,468 psi | 72% | 2490 fps | 95.6% |
| Lovex S070 | <<locked>> | 98% | 46,296 psi | 77% | 2559 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 38,058 psi | 63% | 2379 fps | 98.3% |
| Norma 202 | <<locked>> | 80% | 38,130 psi | 63% | 2392 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 34,214 psi | 57% | 2346 fps | 95.9% |
| Norma URP | <<locked>> | 94% | 38,551 psi | 64% | 2480 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 33,721 psi | 56% | 2352 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 40,785 psi | 68% | 2428 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,001 psi | 66% | 2451 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,179 psi | 73% | 2477 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,020 psi | 43% | 1457 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,021 psi | 76% | 2516 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 46,050 psi | 77% | 2536 fps | 95.4% |
| ReloadSwiss RS 52 | 35.8 gr | 80% | 35,824 psi | 60% | 2438 fps | 95.8% |
| ReloadSwiss RS 60 | 36.4 gr | 80% | 29,762 psi | 49% | 2310 fps | 96.8% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 37,927 psi | 63% | 2493 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 41,829 psi | 69% | 2566 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 42,105 psi | 70% | 2431 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,477 psi | 61% | 2339 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 29,660 psi | 49% | 2241 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 94% | 43,468 psi | 72% | 2490 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,492 psi | 62% | 2405 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 34,635 psi | 58% | 2320 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 98% | 46,296 psi | 77% | 2559 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,675 psi | 81% | 2533 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 32,880 psi | 55% | 2336 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 48,660 psi | 81% | 2520 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,725 psi | 64% | 2398 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,376 psi | 62% | 2388 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,798 psi | 66% | 2349 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,721 psi | 54% | 2224 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 49,124 psi | 82% | 2539 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 43,772 psi | 73% | 2507 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 39,218 psi | 65% | 2349 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,377 psi | 64% | 2402 fps | 97% |
| Somchem S355 | <<locked>> | 80% | 30,719 psi | 51% | 2251 fps | 95.1% |
| Somchem S365 | <<locked>> | 88% | 28,660 psi | 48% | 2280 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 45,107 psi | 75% | 2415 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,943 psi | 66% | 2349 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,244 psi | 59% | 2329 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,100 psi | 60% | 2333 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 29,167 psi | 48% | 2198 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 38,130 psi | 63% | 2434 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 40,915 psi | 68% | 2431 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 80% | 34,867 psi | 58% | 2323 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 37,318 psi | 62% | 2438 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,807 psi | 53% | 2267 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 39,769 psi | 66% | 2467 fps | 99.2% |
| Winchester 760 | <<locked>> | 98% | 47,485 psi | 79% | 2641 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,637 psi | 61% | 2392 fps | 97.3% |
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 109 powders for 7 mm-08 Rem. loaded with the .284 | 150gr | Nosler Partition. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,795 fps; across all powders the maximum-charge window runs from 1,594 fps to 2,795 fps. Accurate 4350 gives the best case fill at 100 %, and 109 of the 109 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:11.5 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 | Nosler Partition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-26, Hodgdon H4350, IMR 4350 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.