Load Specifications
Load data in caliber 7 mm-08 Rem. with .284 | 150gr | Peregrine VLR-4 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 52 and Hodgdon CFE223.
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>> | 90% | 52,286 psi | 87% | 2536 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 53,098 psi | 88% | 2621 fps | 98.7% |
| Accurate 2230 | <<locked>> | 82% | 53,548 psi | 89% | 2631 fps | 99% |
| Accurate 2460 | <<locked>> | 88% | 54,404 psi | 90% | 2605 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 52,083 psi | 87% | 2589 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 52,098 psi | 87% | 2612 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 51,358 psi | 85% | 2618 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 40,654 psi | 68% | 2510 fps | 96% |
| Accurate LT-30 | <<locked>> | 84% | 53,084 psi | 88% | 2490 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,505 psi | 89% | 2510 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 51,459 psi | 85% | 2615 fps | 99.1% |
| ADI AR 2207 | <<locked>> | 82% | 54,302 psi | 90% | 2507 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 52,228 psi | 87% | 2605 fps | 98.7% |
| ADI AR 2219 | <<locked>> | 84% | 53,200 psi | 88% | 2602 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 54,375 psi | 90% | 2621 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 92% | 53,534 psi | 89% | 2605 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 52,243 psi | 87% | 2671 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 54,230 psi | 90% | 2759 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 51,271 psi | 85% | 2628 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 86% | 52,417 psi | 87% | 2543 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 52,112 psi | 87% | 2644 fps | 98.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,177 psi | 70% | 2530 fps | 96.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,385 psi | 80% | 2674 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 51,851 psi | 86% | 2487 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 50,937 psi | 85% | 2621 fps | 98.2% |
| Bofors RP3ᴾ | <<locked>> | 100% | 54,433 psi | 90% | 2680 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 90% | 53,272 psi | 89% | 2566 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 92% | 52,649 psi | 87% | 2648 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 90% | 54,375 psi | 90% | 2733 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 86% | 51,474 psi | 86% | 2579 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 52,431 psi | 87% | 2605 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 53,258 psi | 88% | 2648 fps | 98% |
| Hodgdon H4895 | <<locked>> | 92% | 51,851 psi | 86% | 2625 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,189 psi | 63% | 2421 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 53,505 psi | 89% | 2697 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,939 psi | 56% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 53,621 psi | 89% | 2631 fps | 99.6% |
| IMR 3031 | <<locked>> | 94% | 53,998 psi | 90% | 2657 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 52,011 psi | 86% | 2592 fps | 98.8% |
| IMR 4198 | <<locked>> | 86% | 53,388 psi | 89% | 2510 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 53,432 psi | 89% | 2674 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 92% | 54,375 psi | 90% | 2621 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 82% | 54,085 psi | 90% | 2608 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 54,331 psi | 90% | 2612 fps | 100% |
| Lovex D073.6 | <<locked>> | 94% | 53,113 psi | 88% | 2635 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 52,257 psi | 87% | 2552 fps | 99.2% |
| Lovex S062 | <<locked>> | 98% | 54,099 psi | 90% | 2635 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 46,775 psi | 78% | 2520 fps | 95.8% |
| Norma 200 | <<locked>> | 82% | 52,402 psi | 87% | 2520 fps | 100% |
| Norma 201 | <<locked>> | 94% | 53,388 psi | 89% | 2612 fps | 99.8% |
| Norma 202 | <<locked>> | 94% | 53,809 psi | 89% | 2618 fps | 100% |
| Norma 203B | <<locked>> | 96% | 51,213 psi | 85% | 2635 fps | 99.1% |
| Norma URPᴾ | <<locked>> | 100% | 41,756 psi | 69% | 2516 fps | 96% |
| Ramshot Big Game | <<locked>> | 96% | 51,503 psi | 86% | 2654 fps | 99% |
| Ramshot TAC | <<locked>> | 90% | 51,459 psi | 85% | 2582 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 92% | 53,751 psi | 89% | 2651 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 88% | 52,518 psi | 87% | 2582 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,258 psi | 57% | 1591 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 54,302 psi | 90% | 2615 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 54,099 psi | 90% | 2628 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 51,503 psi | 86% | 2700 fps | 98.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 51,793 psi | 86% | 2736 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 54,070 psi | 90% | 2595 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 53,534 psi | 89% | 2605 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,821 psi | 84% | 2625 fps | 99.5% |
| Shooters World AR Plus | <<locked>> | 82% | 54,085 psi | 90% | 2608 fps | 100% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 46,775 psi | 78% | 2520 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 94% | 53,113 psi | 88% | 2635 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 54,099 psi | 90% | 2635 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 54,172 psi | 90% | 2582 fps | 99.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 54,244 psi | 90% | 2267 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 53,476 psi | 89% | 2612 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 52,924 psi | 88% | 2684 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 53,679 psi | 89% | 2562 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 52,692 psi | 88% | 2608 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 53,069 psi | 88% | 2631 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 52,794 psi | 88% | 2523 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 52,141 psi | 87% | 2520 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 52,025 psi | 86% | 2612 fps | 99.8% |
| Somchem S335 | <<locked>> | 92% | 51,503 psi | 86% | 2523 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 52,112 psi | 87% | 2605 fps | 99.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 51,547 psi | 86% | 2625 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,927 psi | 61% | 2464 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 82% | 54,215 psi | 90% | 2457 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 52,794 psi | 88% | 2500 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 52,663 psi | 87% | 2513 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 52,431 psi | 87% | 2579 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 54,331 psi | 90% | 2598 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,067 psi | 83% | 2566 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,034 psi | 73% | 2520 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 90% | 51,503 psi | 86% | 2579 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 96% | 52,185 psi | 87% | 2592 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 42,917 psi | 71% | 2523 fps | 96.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,658 psi | 76% | 2513 fps | 98.6% |
| Winchester 748 | <<locked>> | 92% | 53,693 psi | 89% | 2664 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 52,431 psi | 87% | 2641 fps | 99.5% |
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% | 38,261 psi | 64% | 2326 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 49,719 psi | 83% | 2572 fps | 98.2% |
| Accurate 2230 | <<locked>> | 80% | 49,748 psi | 83% | 2575 fps | 98.5% |
| Accurate 2460 | <<locked>> | 80% | 41,307 psi | 69% | 2411 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 30,284 psi | 50% | 2228 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 36,550 psi | 61% | 2362 fps | 98.9% |
| Accurate 4064 | <<locked>> | 80% | 28,689 psi | 48% | 2208 fps | 97.9% |
| Accurate 4350 | <<locked>> | 98% | 37,869 psi | 63% | 2461 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 47,152 psi | 78% | 2408 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,529 psi | 79% | 2425 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 35,157 psi | 58% | 2320 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 51,271 psi | 85% | 2467 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 36,274 psi | 60% | 2326 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 46,267 psi | 77% | 2503 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,188 psi | 62% | 2339 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 80% | 35,534 psi | 59% | 2346 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,801 psi | 71% | 2516 fps | 98.4% |
| Alliant Power Pro 2000-MR | 36.8 gr | 86% | 38,566 psi | 64% | 2477 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 30,414 psi | 51% | 2238 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,381 psi | 72% | 2415 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 35,491 psi | 59% | 2349 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 98% | 39,639 psi | 66% | 2477 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,737 psi | 58% | 2402 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,687 psi | 76% | 2402 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 38,754 psi | 64% | 2411 fps | 95.4% |
| Bofors RP3 | <<locked>> | 84% | 31,560 psi | 52% | 2283 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,392 psi | 65% | 2343 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,867 psi | 58% | 2346 fps | 97.6% |
| Hodgdon CFE223 | 35.1 gr | 80% | 38,551 psi | 64% | 2461 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 80% | 42,206 psi | 70% | 2441 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,004 psi | 71% | 2464 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 40,654 psi | 68% | 2444 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 35,346 psi | 59% | 2333 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 33,547 psi | 56% | 2323 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,401 psi | 52% | 2287 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,092 psi | 42% | 1385 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,258 psi | 57% | 2293 fps | 95.9% |
| IMR 3031 | <<locked>> | 80% | 33,968 psi | 56% | 2339 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 35,621 psi | 59% | 2306 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 44,527 psi | 74% | 2388 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 33,997 psi | 56% | 2329 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 37,188 psi | 62% | 2339 fps | 97.6% |
| Lovex D073.4 | <<locked>> | 80% | 50,604 psi | 84% | 2562 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 40,988 psi | 68% | 2411 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 80% | 32,779 psi | 54% | 2293 fps | 98.1% |
| Lovex S060 | <<locked>> | 80% | 36,216 psi | 60% | 2277 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 30,763 psi | 51% | 2215 fps | 95.6% |
| Lovex S065 | <<locked>> | 98% | 43,903 psi | 73% | 2474 fps | 95% |
| Norma 200 | <<locked>> | 80% | 49,153 psi | 82% | 2477 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,301 psi | 57% | 2280 fps | 96.9% |
| Norma 202 | <<locked>> | 80% | 34,142 psi | 57% | 2297 fps | 98.9% |
| Norma 203B | <<locked>> | 84% | 34,824 psi | 58% | 2339 fps | 95.6% |
| Norma URP | <<locked>> | 98% | 39,160 psi | 65% | 2467 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 84% | 34,490 psi | 57% | 2346 fps | 95% |
| Ramshot TAC | <<locked>> | 86% | 45,237 psi | 75% | 2484 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 35,955 psi | 60% | 2349 fps | 95.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,219 psi | 67% | 2379 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,179 psi | 42% | 1417 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,756 psi | 69% | 2421 fps | 99.4% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 47,311 psi | 79% | 2526 fps | 95% |
| ReloadSwiss RS 52 | 34.9 gr | 84% | 36,680 psi | 61% | 2434 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 28,456 psi | 47% | 2247 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 37,826 psi | 63% | 2336 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 80% | 32,503 psi | 54% | 2234 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 86% | 31,734 psi | 53% | 2280 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 50,604 psi | 84% | 2562 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 98% | 43,903 psi | 73% | 2474 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,779 psi | 54% | 2293 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 30,763 psi | 51% | 2215 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,309 psi | 74% | 2438 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,300 psi | 85% | 2234 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,818 psi | 78% | 2516 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 35,708 psi | 59% | 2382 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,367 psi | 74% | 2434 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 42,714 psi | 71% | 2451 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 33,634 psi | 56% | 2287 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,129 psi | 60% | 2257 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,399 psi | 49% | 2133 fps | 98.5% |
| Somchem S321 | <<locked>> | 80% | 39,436 psi | 66% | 2405 fps | 98.4% |
| Somchem S335 | <<locked>> | 80% | 35,636 psi | 59% | 2264 fps | 99.5% |
| Somchem S341 | <<locked>> | 80% | 34,432 psi | 57% | 2300 fps | 95.2% |
| Somchem S355 | <<locked>> | 86% | 33,040 psi | 55% | 2290 fps | 95.5% |
| Somchem S365 | <<locked>> | 94% | 30,516 psi | 51% | 2310 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 51,271 psi | 85% | 2421 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,147 psi | 68% | 2333 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,216 psi | 60% | 2264 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,227 psi | 52% | 2234 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 32,329 psi | 54% | 2238 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 84% | 29,443 psi | 49% | 2192 fps | 95.7% |
| Vihtavuori N160 | <<locked>> | 98% | 41,307 psi | 69% | 2470 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 36,811 psi | 61% | 2329 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 80% | 31,111 psi | 52% | 2228 fps | 98% |
| Vihtavuori N550 | <<locked>> | 98% | 40,292 psi | 67% | 2474 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 34,867 psi | 58% | 2310 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 35,694 psi | 59% | 2365 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,634 psi | 54% | 2287 fps | 95.4% |
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 115 powders for 7 mm-08 Rem. loaded with the .284 | 150gr | Peregrine VLR-4. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,759 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,759 fps. Accurate 4350 gives the best case fill at 100 %, and 115 of the 115 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 48–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:9.0 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 52, Hodgdon CFE223 rank at the top here: for 7 mm-08 Rem. with the .284 | 150gr | Peregrine VLR-4 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 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.