Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 175gr | Sierra MatchKing 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% | 51,227 psi | 85% | 2434 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 52,634 psi | 87% | 2493 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,791 psi | 81% | 2526 fps | 99.2% |
| Accurate 4064 | <<locked>> | 84% | 51,532 psi | 86% | 2484 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 51,271 psi | 85% | 2575 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 54,157 psi | 90% | 2552 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 52,141 psi | 87% | 2513 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 52,547 psi | 87% | 2612 fps | 97.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 50,401 psi | 84% | 2602 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,346 psi | 90% | 2674 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 52,649 psi | 87% | 2536 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 52,982 psi | 88% | 2556 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 52,431 psi | 87% | 2628 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,490 psi | 89% | 2654 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 51,808 psi | 86% | 2602 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,791 psi | 81% | 2602 fps | 97.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,934 psi | 76% | 2546 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,176 psi | 67% | 2470 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,417 psi | 87% | 2723 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,911 psi | 90% | 2569 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 44,875 psi | 75% | 2533 fps | 96.4% |
| Bofors RP3 | <<locked>> | 86% | 53,243 psi | 88% | 2549 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,791 psi | 81% | 2602 fps | 97.4% |
| Bofors RP7 | <<locked>> | 90% | 52,910 psi | 88% | 2536 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 86% | 53,534 psi | 89% | 2562 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 53,954 psi | 90% | 2625 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 90% | 53,998 psi | 90% | 2585 fps | 98.4% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 53,911 psi | 90% | 2605 fps | 96.2% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 52,910 psi | 88% | 2592 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 52,591 psi | 87% | 2559 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 51,242 psi | 85% | 2549 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 53,592 psi | 89% | 2657 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,216 psi | 60% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 52,518 psi | 87% | 2516 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 51,590 psi | 86% | 2497 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,317 psi | 90% | 2530 fps | 99.2% |
| IMR 4350 | <<locked>> | 94% | 53,374 psi | 89% | 2562 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 51,445 psi | 85% | 2513 fps | 98.8% |
| IMR 4831 | <<locked>> | 94% | 52,199 psi | 87% | 2572 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 54,302 psi | 90% | 2579 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 52,315 psi | 87% | 2549 fps | 96.1% |
| Lovex D073.6 | <<locked>> | 82% | 54,389 psi | 90% | 2530 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 53,403 psi | 89% | 2484 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 51,750 psi | 86% | 2493 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,244 psi | 90% | 2556 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 52,025 psi | 86% | 2543 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,799 psi | 68% | 2395 fps | 97.9% |
| Norma 201 | <<locked>> | 82% | 52,982 psi | 88% | 2500 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,867 psi | 89% | 2500 fps | 100% |
| Norma 203B | <<locked>> | 84% | 52,272 psi | 87% | 2543 fps | 100% |
| Norma 204 | <<locked>> | 94% | 53,751 psi | 89% | 2608 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 51,401 psi | 85% | 2677 fps | 99% |
| Norma URP | <<locked>> | 94% | 53,722 psi | 89% | 2612 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 52,634 psi | 87% | 2566 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 52,489 psi | 87% | 2612 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,540 psi | 71% | 2474 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,753 psi | 61% | 1598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,548 psi | 89% | 2546 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,432 psi | 89% | 2612 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 53,069 psi | 88% | 2644 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 51,155 psi | 85% | 2598 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,505 psi | 89% | 2674 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 53,693 psi | 89% | 2500 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,084 psi | 88% | 2543 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 51,155 psi | 85% | 2536 fps | 96.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,230 psi | 90% | 2638 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 90% | 52,910 psi | 88% | 2536 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,244 psi | 90% | 2556 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,389 psi | 90% | 2530 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 51,750 psi | 86% | 2493 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 52,025 psi | 86% | 2543 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 51,140 psi | 85% | 2552 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 52,678 psi | 88% | 2530 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,259 psi | 90% | 2438 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 51,503 psi | 86% | 2402 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 53,983 psi | 90% | 2510 fps | 99.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,737 psi | 89% | 2631 fps | 98.3% |
| Somchem S335 | <<locked>> | 82% | 53,664 psi | 89% | 2438 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 53,229 psi | 88% | 2539 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 52,736 psi | 88% | 2533 fps | 95.9% |
| Somchem S365 | <<locked>> | 96% | 52,475 psi | 87% | 2612 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 51,401 psi | 85% | 2566 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 84% | 53,780 psi | 89% | 2464 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,215 psi | 90% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,433 psi | 90% | 2516 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 52,518 psi | 87% | 2559 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,384 psi | 79% | 2493 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 84% | 52,373 psi | 87% | 2480 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 51,851 psi | 86% | 2569 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,343 psi | 85% | 2615 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 52,054 psi | 86% | 2664 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 52,098 psi | 87% | 2533 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 53,954 psi | 90% | 2625 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,365 psi | 69% | 2592 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 52,576 psi | 87% | 2536 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,605 psi | 86% | 2562 fps | 97.6% |
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% | 48,022 psi | 80% | 2392 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,296 psi | 77% | 2395 fps | 97.4% |
| Accurate 3100 | <<locked>> | 88% | 32,619 psi | 54% | 2231 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 45,469 psi | 76% | 2398 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,156 psi | 57% | 2274 fps | 97.7% |
| ADI AR 2206H | <<locked>> | 80% | 50,937 psi | 85% | 2507 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,323 psi | 72% | 2375 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 92% | 43,482 psi | 72% | 2457 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 98% | 46,978 psi | 78% | 2543 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,239 psi | 78% | 2566 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,729 psi | 73% | 2402 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,528 psi | 77% | 2457 fps | 99.9% |
| Alliant Reloder-16 | 39.8 gr | 80% | 33,968 psi | 56% | 2287 fps | 97.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,927 psi | 63% | 2398 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 92% | 42,786 psi | 71% | 2451 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 40,147 psi | 67% | 2444 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,656 psi | 41% | 2067 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 92% | 31,546 psi | 52% | 2267 fps | 95.1% |
| Alliant Reloder-26 | 46.1 gr | 84% | 29,791 psi | 49% | 2267 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,459 psi | 84% | 2520 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 42,148 psi | 70% | 2484 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 43,743 psi | 73% | 2411 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 40,147 psi | 67% | 2444 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 38,827 psi | 65% | 2293 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 44,121 psi | 73% | 2418 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 80% | 36,274 psi | 60% | 2316 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 80% | 39,436 psi | 66% | 2339 fps | 95% |
| Hodgdon H4831 | <<locked>> | 98% | 50,546 psi | 84% | 2556 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 98% | 49,269 psi | 82% | 2536 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,372 psi | 52% | 2192 fps | 98.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,819 psi | 79% | 2497 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 37,768 psi | 63% | 2379 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,151 psi | 45% | 1394 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,356 psi | 82% | 2470 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,542 psi | 76% | 2405 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,834 psi | 79% | 2431 fps | 98.3% |
| IMR 4350 | <<locked>> | 82% | 36,753 psi | 61% | 2274 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,089 psi | 67% | 2320 fps | 96.5% |
| IMR 4831 | <<locked>> | 80% | 33,170 psi | 55% | 2238 fps | 97.5% |
| IMR 4895 | <<locked>> | 80% | 47,718 psi | 79% | 2484 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 49,211 psi | 82% | 2500 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 80% | 51,082 psi | 85% | 2487 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,270 psi | 84% | 2441 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,730 psi | 76% | 2405 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,623 psi | 63% | 2274 fps | 97.3% |
| Lovex S070 | <<locked>> | 80% | 35,955 psi | 60% | 2260 fps | 95.6% |
| Lovex S071 | <<locked>> | 94% | 33,707 psi | 56% | 2257 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 49,821 psi | 83% | 2454 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,604 psi | 84% | 2457 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,905 psi | 76% | 2448 fps | 100% |
| Norma 204 | <<locked>> | 86% | 41,191 psi | 68% | 2398 fps | 95% |
| Norma MRP | <<locked>> | 90% | 36,753 psi | 61% | 2402 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 34,316 psi | 57% | 2274 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 80% | 45,963 psi | 76% | 2467 fps | 100% |
| Ramshot Hunter | <<locked>> | 80% | 33,330 psi | 55% | 2260 fps | 95.4% |
| Ramshot Magnum | <<locked>> | 98% | 39,552 psi | 66% | 2415 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,441 psi | 46% | 1424 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,367 psi | 74% | 2405 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,125 psi | 83% | 2566 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,335 psi | 67% | 2448 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,910 psi | 56% | 2293 fps | 97.3% |
| ReloadSwiss RS 70 | 43.5 gr | 80% | 33,315 psi | 55% | 2293 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 80% | 47,703 psi | 79% | 2418 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,176 psi | 68% | 2362 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 45,136 psi | 75% | 2441 fps | 95% |
| Rottweil R 905 | <<locked>> | 92% | 41,829 psi | 69% | 2438 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 38,827 psi | 65% | 2293 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,623 psi | 63% | 2274 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,082 psi | 85% | 2487 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,730 psi | 76% | 2405 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 35,955 psi | 60% | 2260 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,177 psi | 70% | 2408 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,588 psi | 82% | 2484 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,923 psi | 85% | 2395 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,830 psi | 71% | 2280 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 36,854 psi | 61% | 2224 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 41,423 psi | 69% | 2431 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 50,502 psi | 84% | 2395 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,510 psi | 69% | 2359 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 49,327 psi | 82% | 2484 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 30,806 psi | 51% | 2234 fps | 99.4% |
| Somchem S385 | <<locked>> | 88% | 37,362 psi | 62% | 2323 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 47,630 psi | 79% | 2382 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,935 psi | 80% | 2398 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,711 psi | 66% | 2300 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,592 psi | 59% | 2270 fps | 97.9% |
| Vihtavuori N165 | <<locked>> | 94% | 39,175 psi | 65% | 2349 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 46,122 psi | 77% | 2392 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,085 psi | 58% | 2274 fps | 97.6% |
| Vihtavuori N555 | <<locked>> | 80% | 26,687 psi | 44% | 2133 fps | 95.4% |
| Vihtavuori N560 | <<locked>> | 98% | 48,863 psi | 81% | 2612 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,882 psi | 58% | 2247 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 36,274 psi | 60% | 2316 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 84% | 24,729 psi | 41% | 2139 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,124 psi | 82% | 2487 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 42,119 psi | 70% | 2408 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 96 powders for 7 x 64 Brenneke loaded with the .284 | 175gr | Sierra MatchKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,723 fps; across all powders the maximum-charge window runs from 1,562 fps to 2,723 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 175.0 gr projectile in 0.284" calls for a 1:10.0 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 | 175gr | Sierra MatchKing 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.