Load Specifications
Load data in caliber 7 mm-08 Rem. with .284 | 177gr | Brenneke TIG 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 Alliant Reloder-17.
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% | 54,433 psi | 90% | 2365 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 52,417 psi | 87% | 2385 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,317 psi | 90% | 2444 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 51,880 psi | 86% | 2388 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 39,262 psi | 65% | 2300 fps | 96.4% |
| Accurate 4064 | <<locked>> | 90% | 52,649 psi | 87% | 2431 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 51,851 psi | 86% | 2507 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 53,243 psi | 88% | 2461 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 54,070 psi | 90% | 2457 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 84% | 52,199 psi | 87% | 2411 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 53,171 psi | 88% | 2388 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 52,286 psi | 87% | 2562 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 53,838 psi | 89% | 2477 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 51,430 psi | 85% | 2454 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,258 psi | 88% | 2556 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 54,244 psi | 90% | 2589 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,029 psi | 63% | 2333 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,206 psi | 70% | 2474 fps | 98.5% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 52,678 psi | 88% | 2474 fps | 99.8% |
| Bofors RP3 | <<locked>> | 92% | 54,360 psi | 90% | 2490 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 51,430 psi | 85% | 2421 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,172 psi | 90% | 2398 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 51,329 psi | 85% | 2441 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,287 psi | 89% | 2530 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 52,185 psi | 87% | 2461 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 96% | 51,285 psi | 85% | 2503 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 94% | 52,315 psi | 87% | 2470 fps | 97% |
| Hodgdon H4895 | <<locked>> | 86% | 53,737 psi | 89% | 2467 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,400 psi | 82% | 2444 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 52,982 psi | 88% | 2500 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 51,605 psi | 86% | 2536 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,389 psi | 59% | 1470 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 51,706 psi | 86% | 2428 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 53,461 psi | 89% | 2444 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 53,751 psi | 89% | 2444 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 53,592 psi | 89% | 2425 fps | 98.2% |
| IMR 4350 | <<locked>> | 98% | 51,256 psi | 85% | 2444 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 94% | 53,417 psi | 89% | 2454 fps | 98.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,547 psi | 87% | 2503 fps | 99.8% |
| IMR 4895 | <<locked>> | 88% | 52,736 psi | 88% | 2480 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 52,199 psi | 87% | 2411 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 52,620 psi | 87% | 2434 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 52,997 psi | 88% | 2395 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 53,548 psi | 89% | 2441 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 52,504 psi | 87% | 2444 fps | 99.1% |
| Lovex S070 | <<locked>> | 98% | 53,200 psi | 88% | 2477 fps | 98.4% |
| Norma 201 | <<locked>> | 86% | 52,069 psi | 87% | 2411 fps | 100% |
| Norma 202 | <<locked>> | 86% | 52,547 psi | 87% | 2411 fps | 100% |
| Norma 203B | <<locked>> | 90% | 53,708 psi | 89% | 2484 fps | 100% |
| Norma 204 | <<locked>> | 98% | 51,938 psi | 86% | 2490 fps | 96.3% |
| Norma URP | <<locked>> | 98% | 51,024 psi | 85% | 2497 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 90% | 54,302 psi | 90% | 2513 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,026 psi | 88% | 2539 fps | 99% |
| Ramshot TAC | <<locked>> | 84% | 52,489 psi | 87% | 2434 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 51,866 psi | 86% | 2448 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 53,229 psi | 88% | 2418 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,926 psi | 60% | 1509 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 52,431 psi | 87% | 2444 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 51,343 psi | 85% | 2507 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 54,085 psi | 90% | 2585 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 51,256 psi | 85% | 2526 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 51,053 psi | 85% | 2549 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 84% | 53,113 psi | 88% | 2388 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 52,576 psi | 87% | 2408 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 54,244 psi | 90% | 2484 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 51,430 psi | 85% | 2421 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 52,504 psi | 87% | 2444 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 52,620 psi | 87% | 2434 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 53,548 psi | 89% | 2441 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 53,200 psi | 88% | 2477 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 52,547 psi | 87% | 2497 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,259 psi | 90% | 2461 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 51,532 psi | 86% | 2434 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 53,751 psi | 89% | 2352 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 53,505 psi | 89% | 2352 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 52,765 psi | 88% | 2402 fps | 98.1% |
| Somchem S321 | <<locked>> | 82% | 53,388 psi | 89% | 2444 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 53,026 psi | 88% | 2356 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 53,722 psi | 89% | 2451 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 51,372 psi | 85% | 2438 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,762 psi | 81% | 2497 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 45,484 psi | 76% | 2395 fps | 96.2% |
| Vihtavuori N130 | <<locked>> | 82% | 53,330 psi | 89% | 2316 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 53,983 psi | 90% | 2339 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 52,214 psi | 87% | 2375 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 52,794 psi | 88% | 2388 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 52,620 psi | 87% | 2418 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 53,664 psi | 89% | 2493 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 52,576 psi | 87% | 2411 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 51,126 psi | 85% | 2392 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 52,518 psi | 87% | 2500 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,365 psi | 69% | 2398 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 53,853 psi | 89% | 2474 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 52,286 psi | 87% | 2454 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 51,285 psi | 85% | 2503 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,823 psi | 56% | 2336 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 51,213 psi | 85% | 2441 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% | 47,979 psi | 80% | 2283 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,770 psi | 68% | 2228 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,543 psi | 79% | 2359 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 42,714 psi | 71% | 2247 fps | 95.1% |
| Accurate 3100 | <<locked>> | 98% | 36,854 psi | 61% | 2257 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 38,551 psi | 64% | 2228 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 30,008 psi | 50% | 2123 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 44,121 psi | 73% | 2323 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 37,623 psi | 63% | 2195 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,180 psi | 77% | 2326 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 46,557 psi | 77% | 2310 fps | 100% |
| Alliant Power Pro 2000-MR | 36.8 gr | 80% | 40,103 psi | 67% | 2359 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,014 psi | 61% | 2215 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,856 psi | 66% | 2270 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 82% | 30,676 psi | 51% | 2129 fps | 95.2% |
| Alliant Reloder-17 | 36.2 gr | 80% | 32,010 psi | 53% | 2195 fps | 97.7% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,181 psi | 47% | 2103 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 94% | 34,316 psi | 57% | 2306 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,120 psi | 72% | 2329 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 36,767 psi | 61% | 2221 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 42,917 psi | 71% | 2287 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,037 psi | 80% | 2316 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,034 psi | 75% | 2352 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,472 psi | 82% | 2477 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 80% | 37,710 psi | 63% | 2224 fps | 97.1% |
| Hodgdon H414 | <<locked>> | 88% | 39,363 psi | 65% | 2306 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 90% | 45,963 psi | 76% | 2375 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 44,498 psi | 74% | 2333 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,513 psi | 44% | 2005 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,306 psi | 67% | 2310 fps | 99.7% |
| Hodgdon Superformance | 43 gr | 90% | 41,756 psi | 69% | 2369 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,368 psi | 44% | 1312 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,743 psi | 71% | 2290 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 44,092 psi | 73% | 2320 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,450 psi | 66% | 2224 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,785 psi | 69% | 2238 fps | 95.8% |
| IMR 4350 | <<locked>> | 92% | 42,815 psi | 71% | 2313 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 39,378 psi | 65% | 2224 fps | 95% |
| IMR 4831 | <<locked>> | 84% | 31,256 psi | 52% | 2136 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 40,814 psi | 68% | 2297 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 46,180 psi | 77% | 2326 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,352 psi | 72% | 2306 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,338 psi | 74% | 2267 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 39,450 psi | 66% | 2228 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 34,403 psi | 57% | 2136 fps | 95.1% |
| Lovex S070 | <<locked>> | 88% | 39,015 psi | 65% | 2247 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 43,410 psi | 72% | 2283 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 43,424 psi | 72% | 2283 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,276 psi | 65% | 2260 fps | 99% |
| Norma 204 | <<locked>> | 96% | 48,544 psi | 81% | 2438 fps | 95.5% |
| Norma URP | <<locked>> | 82% | 30,632 psi | 51% | 2126 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 38,798 psi | 64% | 2277 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 36,216 psi | 60% | 2254 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 45,977 psi | 76% | 2336 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,585 psi | 76% | 2356 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,647 psi | 82% | 2369 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,934 psi | 45% | 1348 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,029 psi | 63% | 2208 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,742 psi | 69% | 2359 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,055 psi | 57% | 2251 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 31,995 psi | 53% | 2188 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 34,316 psi | 57% | 2238 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 47,340 psi | 79% | 2313 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,321 psi | 69% | 2241 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 34,505 psi | 57% | 2172 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 42,917 psi | 71% | 2287 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 34,403 psi | 57% | 2136 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,352 psi | 72% | 2306 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,450 psi | 66% | 2228 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 39,015 psi | 65% | 2247 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,375 psi | 59% | 2215 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,251 psi | 74% | 2313 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,496 psi | 71% | 2297 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,585 psi | 74% | 2231 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,057 psi | 62% | 2123 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 40,582 psi | 67% | 2221 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 49,705 psi | 83% | 2395 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,396 psi | 74% | 2238 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,918 psi | 73% | 2310 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 35,578 psi | 59% | 2178 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 25,657 psi | 43% | 2034 fps | 96.5% |
| Somchem S385 | <<locked>> | 98% | 42,511 psi | 71% | 2346 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 50,314 psi | 84% | 2280 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,889 psi | 75% | 2224 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,582 psi | 67% | 2218 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,118 psi | 68% | 2228 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,591 psi | 56% | 2119 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 32,024 psi | 53% | 2129 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 46,311 psi | 77% | 2326 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 39,769 psi | 66% | 2228 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 31,270 psi | 52% | 2126 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 88% | 28,166 psi | 47% | 2119 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,762 psi | 49% | 2060 fps | 96.9% |
| Winchester 748 | <<locked>> | 80% | 45,759 psi | 76% | 2365 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 39,653 psi | 66% | 2313 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 92% | 26,469 psi | 44% | 2116 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,076 psi | 70% | 2303 fps | 99.6% |
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 97 powders for 7 mm-08 Rem. loaded with the .284 | 177gr | Brenneke TIG. Alliant Reloder-17 delivers the highest muzzle velocity at 2,589 fps; across all powders the maximum-charge window runs from 1,470 fps to 2,589 fps. Accurate 3100 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 177.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, 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 Power Pro 2000-MR, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 7 mm-08 Rem. with the .284 | 177gr | Brenneke TIG 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.