Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 180gr | Berger VLD Hunting bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Alliant Reloder-16.
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 2495 | <<locked>> | 82% | 51,851 psi | 86% | 2402 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 53,084 psi | 88% | 2464 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,313 psi | 82% | 2497 fps | 99.4% |
| Accurate 4064 | <<locked>> | 84% | 52,228 psi | 87% | 2454 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 51,982 psi | 86% | 2543 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 52,475 psi | 87% | 2480 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 53,316 psi | 89% | 2582 fps | 98.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 50,850 psi | 84% | 2572 fps | 96.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 51,198 psi | 85% | 2589 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 53,098 psi | 88% | 2500 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 53,374 psi | 89% | 2520 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 53,026 psi | 88% | 2595 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,896 psi | 90% | 2618 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 52,214 psi | 87% | 2572 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,313 psi | 82% | 2572 fps | 97.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,369 psi | 77% | 2516 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,785 psi | 68% | 2448 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,823 psi | 88% | 2687 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,418 psi | 90% | 2536 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,266 psi | 75% | 2503 fps | 96.7% |
| Bofors RP3 | <<locked>> | 86% | 53,737 psi | 89% | 2516 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,313 psi | 82% | 2572 fps | 97.8% |
| Bofors RP7 | <<locked>> | 90% | 53,388 psi | 89% | 2503 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 86% | 54,041 psi | 90% | 2530 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 54,302 psi | 90% | 2592 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 88% | 51,300 psi | 85% | 2507 fps | 98.1% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 54,418 psi | 90% | 2575 fps | 96.6% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 53,388 psi | 89% | 2562 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 53,272 psi | 89% | 2530 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 51,692 psi | 86% | 2513 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,143 psi | 90% | 2625 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,347 psi | 60% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 52,794 psi | 88% | 2480 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 51,924 psi | 86% | 2461 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 51,430 psi | 85% | 2448 fps | 99% |
| IMR 4350 | <<locked>> | 94% | 54,012 psi | 90% | 2533 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 88% | 51,851 psi | 86% | 2480 fps | 99% |
| IMR 4831 | <<locked>> | 94% | 52,547 psi | 87% | 2539 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 51,430 psi | 85% | 2500 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 52,997 psi | 88% | 2523 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 48,428 psi | 80% | 2549 fps | 96% |
| Lovex S060 | <<locked>> | 82% | 53,969 psi | 90% | 2451 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 52,083 psi | 87% | 2457 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 51,532 psi | 86% | 2477 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 52,562 psi | 87% | 2513 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,133 psi | 68% | 2365 fps | 98.2% |
| Norma 201 | <<locked>> | 82% | 53,621 psi | 89% | 2467 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,143 psi | 90% | 2464 fps | 100% |
| Norma 203B | <<locked>> | 84% | 52,663 psi | 87% | 2507 fps | 100% |
| Norma 204 | <<locked>> | 92% | 50,807 psi | 84% | 2526 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 52,011 psi | 86% | 2648 fps | 99.3% |
| Norma URP | <<locked>> | 94% | 54,418 psi | 90% | 2579 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 52,881 psi | 88% | 2530 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 48,312 psi | 80% | 2556 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 94% | 53,243 psi | 88% | 2585 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,743 psi | 71% | 2444 fps | 96.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,898 psi | 61% | 1572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,056 psi | 90% | 2516 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,954 psi | 90% | 2579 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 53,766 psi | 89% | 2612 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 51,590 psi | 86% | 2566 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,983 psi | 90% | 2641 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 39,508 psi | 66% | 2457 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 84% | 54,273 psi | 90% | 2467 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,650 psi | 89% | 2510 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 51,488 psi | 86% | 2507 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 98% | 51,561 psi | 86% | 2559 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 53,388 psi | 89% | 2503 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 51,532 psi | 86% | 2477 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 52,083 psi | 87% | 2457 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 52,562 psi | 87% | 2513 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 51,677 psi | 86% | 2520 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 53,040 psi | 88% | 2493 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,433 psi | 90% | 2402 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 51,808 psi | 86% | 2365 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 51,242 psi | 85% | 2434 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 51,097 psi | 85% | 2556 fps | 98% |
| Somchem S335 | <<locked>> | 82% | 54,244 psi | 90% | 2405 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 53,664 psi | 89% | 2507 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 53,229 psi | 88% | 2503 fps | 96.2% |
| Somchem S365 | <<locked>> | 96% | 53,359 psi | 89% | 2582 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 52,228 psi | 87% | 2539 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 84% | 54,462 psi | 90% | 2431 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 51,300 psi | 85% | 2405 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 51,590 psi | 86% | 2441 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 53,156 psi | 88% | 2526 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,819 psi | 79% | 2464 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 84% | 52,794 psi | 88% | 2444 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 52,185 psi | 87% | 2533 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,156 psi | 87% | 2585 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 52,591 psi | 87% | 2635 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 52,533 psi | 87% | 2500 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 51,024 psi | 85% | 2543 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,872 psi | 70% | 2566 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 53,026 psi | 88% | 2500 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,156 psi | 87% | 2533 fps | 97.9% |
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 2495 | <<locked>> | 80% | 48,617 psi | 81% | 2362 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,630 psi | 77% | 2365 fps | 97.7% |
| Accurate 3100 | <<locked>> | 86% | 30,908 psi | 51% | 2162 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 46,050 psi | 77% | 2369 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,708 psi | 58% | 2251 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 43,787 psi | 73% | 2346 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 41,278 psi | 69% | 2382 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 98% | 47,688 psi | 79% | 2520 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,674 psi | 79% | 2533 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,961 psi | 73% | 2365 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,094 psi | 78% | 2428 fps | 100% |
| Alliant Reloder-16 | 39.2 gr | 80% | 34,142 psi | 57% | 2257 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,290 psi | 64% | 2369 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 40,712 psi | 68% | 2375 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 40,466 psi | 67% | 2415 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,976 psi | 41% | 2047 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 92% | 31,908 psi | 53% | 2247 fps | 95.7% |
| Alliant Reloder-26 | 45.5 gr | 84% | 30,182 psi | 50% | 2247 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,865 psi | 85% | 2487 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 39,929 psi | 66% | 2405 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 44,063 psi | 73% | 2379 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 40,466 psi | 67% | 2415 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 39,059 psi | 65% | 2264 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 44,425 psi | 74% | 2385 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 36,593 psi | 61% | 2290 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 39,697 psi | 66% | 2310 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 96% | 47,819 psi | 79% | 2477 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 98% | 50,024 psi | 83% | 2510 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,792 psi | 53% | 2169 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,544 psi | 81% | 2470 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 38,218 psi | 63% | 2352 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,151 psi | 45% | 1368 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,617 psi | 82% | 2438 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,021 psi | 76% | 2375 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,370 psi | 80% | 2402 fps | 98.6% |
| IMR 4350 | <<locked>> | 82% | 37,260 psi | 62% | 2251 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,567 psi | 67% | 2293 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 33,446 psi | 56% | 2211 fps | 97.8% |
| IMR 4895 | <<locked>> | 80% | 48,312 psi | 80% | 2454 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 46,876 psi | 78% | 2425 fps | 95% |
| IMR 7828 SSC | <<locked>> | 98% | 45,136 psi | 75% | 2490 fps | 95% |
| Lovex S060 | <<locked>> | 80% | 50,778 psi | 84% | 2408 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,238 psi | 77% | 2375 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,101 psi | 63% | 2251 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 36,216 psi | 60% | 2231 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 31,952 psi | 53% | 2185 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 50,372 psi | 84% | 2425 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,850 psi | 84% | 2421 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,470 psi | 77% | 2418 fps | 100% |
| Norma 204 | <<locked>> | 86% | 41,640 psi | 69% | 2372 fps | 95.4% |
| Norma MRP | <<locked>> | 88% | 34,751 psi | 58% | 2323 fps | 95% |
| Norma URP | <<locked>> | 80% | 34,577 psi | 57% | 2244 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 46,354 psi | 77% | 2438 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 44,860 psi | 75% | 2497 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 33,620 psi | 56% | 2234 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 98% | 40,016 psi | 66% | 2392 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,470 psi | 46% | 1401 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,701 psi | 74% | 2372 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,546 psi | 84% | 2530 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,683 psi | 68% | 2415 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,243 psi | 57% | 2267 fps | 97.7% |
| ReloadSwiss RS 70 | 42.9 gr | 80% | 33,634 psi | 56% | 2270 fps | 96.9% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 36,883 psi | 61% | 2398 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 47,892 psi | 80% | 2382 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,423 psi | 69% | 2329 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 45,629 psi | 76% | 2411 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 90% | 39,668 psi | 66% | 2362 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 39,059 psi | 65% | 2264 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,101 psi | 63% | 2251 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 46,238 psi | 77% | 2375 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,216 psi | 60% | 2231 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,525 psi | 71% | 2379 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,893 psi | 83% | 2451 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,416 psi | 85% | 2362 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,279 psi | 72% | 2251 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,333 psi | 62% | 2201 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 39,291 psi | 65% | 2356 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 51,053 psi | 85% | 2362 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,018 psi | 70% | 2329 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 49,734 psi | 83% | 2454 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 31,270 psi | 52% | 2211 fps | 99.6% |
| Somchem S385 | <<locked>> | 88% | 37,753 psi | 63% | 2297 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 48,138 psi | 80% | 2349 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,182 psi | 80% | 2362 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,958 psi | 66% | 2267 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,085 psi | 60% | 2247 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 94% | 39,450 psi | 66% | 2323 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 46,427 psi | 77% | 2359 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,375 psi | 59% | 2247 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 27,108 psi | 45% | 2113 fps | 96% |
| Vihtavuori N560 | <<locked>> | 96% | 46,050 psi | 77% | 2526 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,172 psi | 58% | 2221 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 36,840 psi | 61% | 2293 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 82% | 23,380 psi | 39% | 2060 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,850 psi | 83% | 2457 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 42,467 psi | 71% | 2379 fps | 95.8% |
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 x 64 Brenneke loaded with the .284 | 180gr | Berger VLD Hunting. Alliant Reloder-26 delivers the highest muzzle velocity at 2,687 fps; across all powders the maximum-charge window runs from 1,535 fps to 2,687 fps. Accurate 3100 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 60–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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. ReloadSwiss RS 70, Alliant Reloder-26, Alliant Reloder-16 rank at the top here: for 7 x 64 Brenneke with the .284 | 180gr | Berger VLD Hunting 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.