Load Specifications
Bullet Manufacturer:Berger
Bullet Weight:184 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:7 x 64 Brenneke load data
Case Length (l3):2.519"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:66 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:60,191 psi
Recommended Twist Rate:1:9.0
Load data in caliber 7 x 64 Brenneke with .284 | 184gr | Berger F-Open Hybrid Target bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro Varmint.
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.
A valid access license is required to use the Personalized Load Calculator.
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% | 51,474 psi | 86% | 2362 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 53,026 psi | 88% | 2425 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,950 psi | 81% | 2457 fps | 99.4% |
| Accurate 4064 | <<locked>> | 84% | 51,909 psi | 86% | 2415 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 51,663 psi | 86% | 2503 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 53,606 psi | 89% | 2638 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 86% | 52,243 psi | 87% | 2441 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 52,881 psi | 88% | 2543 fps | 98.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 50,604 psi | 84% | 2533 fps | 96.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 50,720 psi | 84% | 2543 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 53,693 psi | 89% | 2559 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 52,881 psi | 88% | 2461 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 53,142 psi | 88% | 2480 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 52,736 psi | 88% | 2556 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,708 psi | 89% | 2579 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 51,808 psi | 86% | 2530 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,037 psi | 81% | 2533 fps | 97.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,253 psi | 77% | 2480 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,509 psi | 67% | 2411 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,359 psi | 87% | 2648 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,027 psi | 90% | 2497 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 44,933 psi | 75% | 2464 fps | 96.8% |
| Bofors RP3 | <<locked>> | 86% | 53,272 psi | 89% | 2474 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,037 psi | 81% | 2533 fps | 97.8% |
| Bofors RP7 | <<locked>> | 90% | 53,026 psi | 88% | 2461 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 86% | 53,969 psi | 90% | 2490 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 54,099 psi | 90% | 2552 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 90% | 54,244 psi | 90% | 2516 fps | 98.7% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 54,172 psi | 90% | 2536 fps | 96.6% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 53,084 psi | 88% | 2520 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 52,634 psi | 87% | 2484 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 51,532 psi | 86% | 2477 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 53,853 psi | 89% | 2585 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,376 psi | 60% | 1509 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 52,852 psi | 88% | 2444 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 51,967 psi | 86% | 2425 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 51,198 psi | 85% | 2408 fps | 99% |
| IMR 4350 | <<locked>> | 94% | 53,476 psi | 89% | 2490 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 88% | 51,416 psi | 85% | 2441 fps | 99% |
| IMR 4831 | <<locked>> | 94% | 52,286 psi | 87% | 2500 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 51,126 psi | 85% | 2457 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 52,620 psi | 87% | 2480 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 47,834 psi | 79% | 2503 fps | 95.9% |
| Lovex S060 | <<locked>> | 82% | 53,650 psi | 89% | 2411 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 51,764 psi | 86% | 2418 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,447 psi | 90% | 2480 fps | 99.9% |
| Lovex S070 | <<locked>> | 92% | 52,257 psi | 87% | 2474 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,944 psi | 68% | 2333 fps | 98.2% |
| Norma 201 | <<locked>> | 82% | 53,287 psi | 89% | 2428 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,824 psi | 89% | 2421 fps | 100% |
| Norma 203B | <<locked>> | 84% | 52,446 psi | 87% | 2470 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,085 psi | 90% | 2539 fps | 98.2% |
| Norma MRPᴾ | <<locked>> | 100% | 51,808 psi | 86% | 2608 fps | 99.3% |
| Norma URP | <<locked>> | 94% | 54,128 psi | 90% | 2539 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 52,823 psi | 88% | 2493 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 47,747 psi | 79% | 2513 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 94% | 52,794 psi | 88% | 2543 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,337 psi | 70% | 2405 fps | 96.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,941 psi | 61% | 1545 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,708 psi | 89% | 2474 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,708 psi | 89% | 2536 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 53,084 psi | 88% | 2566 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 51,459 psi | 85% | 2526 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,664 psi | 89% | 2602 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 39,218 psi | 65% | 2418 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 84% | 53,983 psi | 90% | 2428 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,461 psi | 89% | 2474 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 51,300 psi | 85% | 2467 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 98% | 51,097 psi | 85% | 2520 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 53,026 psi | 88% | 2461 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,447 psi | 90% | 2480 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 51,764 psi | 86% | 2418 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 52,257 psi | 87% | 2474 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 51,314 psi | 85% | 2477 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 52,866 psi | 88% | 2454 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,346 psi | 90% | 2362 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 51,851 psi | 86% | 2333 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,273 psi | 90% | 2441 fps | 99.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,157 psi | 90% | 2566 fps | 98.6% |
| Somchem S335 | <<locked>> | 82% | 53,896 psi | 90% | 2365 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 53,519 psi | 89% | 2467 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 52,649 psi | 87% | 2461 fps | 96.2% |
| Somchem S365 | <<locked>> | 96% | 52,750 psi | 88% | 2539 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 51,866 psi | 86% | 2500 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 84% | 54,027 psi | 90% | 2388 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,346 psi | 90% | 2405 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 51,474 psi | 86% | 2405 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 52,837 psi | 88% | 2487 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,514 psi | 79% | 2425 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 84% | 52,620 psi | 87% | 2408 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 51,938 psi | 86% | 2493 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,750 psi | 86% | 2546 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 52,417 psi | 87% | 2598 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 52,170 psi | 87% | 2461 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,099 psi | 90% | 2552 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,379 psi | 69% | 2523 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 52,866 psi | 88% | 2464 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,547 psi | 86% | 2487 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% | 48,196 psi | 80% | 2320 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,398 psi | 77% | 2326 fps | 97.7% |
| Accurate 3100 | <<locked>> | 86% | 30,560 psi | 51% | 2123 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 45,614 psi | 76% | 2326 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,360 psi | 57% | 2215 fps | 98.1% |
| Accurate High Country | <<locked>> | 94% | 43,526 psi | 72% | 2474 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 43,424 psi | 72% | 2306 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 41,002 psi | 68% | 2343 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 98% | 47,384 psi | 79% | 2480 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,514 psi | 79% | 2493 fps | 100% |
| Alliant Power Pro Varmint | 43.9 gr | 88% | 39,073 psi | 65% | 2313 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,888 psi | 73% | 2333 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,760 psi | 78% | 2388 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,055 psi | 57% | 2224 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,058 psi | 63% | 2329 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 40,422 psi | 67% | 2336 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 40,306 psi | 67% | 2382 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,743 psi | 41% | 2011 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 92% | 31,720 psi | 53% | 2211 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 84% | 29,950 psi | 50% | 2211 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,734 psi | 84% | 2451 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 39,494 psi | 66% | 2362 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 43,714 psi | 73% | 2339 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 40,306 psi | 67% | 2382 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 39,001 psi | 65% | 2231 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 80% | 44,440 psi | 74% | 2349 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 36,347 psi | 60% | 2254 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 39,421 psi | 65% | 2270 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 96% | 47,427 psi | 79% | 2434 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 98% | 49,690 psi | 83% | 2470 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,444 psi | 52% | 2133 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,254 psi | 80% | 2431 fps | 100% |
| Hodgdon Superformance | <<locked>> | 80% | 35,389 psi | 59% | 2260 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,963 psi | 45% | 1342 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,574 psi | 82% | 2398 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,629 psi | 76% | 2333 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,109 psi | 80% | 2362 fps | 98.6% |
| IMR 4350 | <<locked>> | 82% | 37,014 psi | 61% | 2215 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,234 psi | 67% | 2254 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 33,127 psi | 55% | 2172 fps | 97.8% |
| IMR 4895 | <<locked>> | 80% | 47,935 psi | 80% | 2411 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 46,398 psi | 77% | 2385 fps | 95% |
| IMR 7828 SSC | <<locked>> | 98% | 45,092 psi | 75% | 2454 fps | 95.1% |
| Lovex S060 | <<locked>> | 80% | 50,386 psi | 84% | 2365 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,832 psi | 76% | 2333 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,768 psi | 63% | 2211 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 36,129 psi | 60% | 2198 fps | 96.1% |
| Lovex S071 | <<locked>> | 92% | 31,604 psi | 53% | 2146 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 49,966 psi | 83% | 2382 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,778 psi | 84% | 2385 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,108 psi | 77% | 2375 fps | 100% |
| Norma 204 | <<locked>> | 86% | 41,336 psi | 69% | 2333 fps | 95.4% |
| Norma MRP | <<locked>> | 88% | 34,548 psi | 57% | 2287 fps | 95% |
| Norma URP | <<locked>> | 80% | 34,505 psi | 57% | 2215 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 46,166 psi | 77% | 2398 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 44,628 psi | 74% | 2457 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 33,431 psi | 56% | 2201 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 98% | 39,537 psi | 66% | 2349 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,528 psi | 46% | 1378 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,454 psi | 74% | 2336 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,256 psi | 83% | 2490 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,480 psi | 67% | 2379 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,040 psi | 57% | 2231 fps | 97.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 33,489 psi | 56% | 2234 fps | 97% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 36,535 psi | 61% | 2359 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 47,805 psi | 79% | 2346 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,379 psi | 69% | 2293 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 45,353 psi | 75% | 2375 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 90% | 39,378 psi | 65% | 2323 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 39,001 psi | 65% | 2231 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,768 psi | 63% | 2211 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 45,832 psi | 76% | 2333 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,129 psi | 60% | 2198 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,279 psi | 70% | 2343 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,647 psi | 82% | 2411 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,227 psi | 85% | 2323 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,120 psi | 72% | 2215 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,072 psi | 62% | 2165 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 39,001 psi | 65% | 2316 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 50,662 psi | 84% | 2323 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,640 psi | 69% | 2290 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 49,429 psi | 82% | 2415 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 31,009 psi | 52% | 2175 fps | 99.6% |
| Somchem S385 | <<locked>> | 88% | 37,463 psi | 62% | 2260 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 47,921 psi | 80% | 2313 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,124 psi | 80% | 2326 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,885 psi | 66% | 2234 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,781 psi | 59% | 2208 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 94% | 39,262 psi | 65% | 2287 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 46,427 psi | 77% | 2326 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,375 psi | 59% | 2215 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 26,818 psi | 45% | 2077 fps | 96% |
| Vihtavuori N560 | <<locked>> | 96% | 45,774 psi | 76% | 2487 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,056 psi | 58% | 2185 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 36,593 psi | 61% | 2257 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 82% | 23,250 psi | 39% | 2031 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,313 psi | 82% | 2415 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 42,047 psi | 70% | 2339 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 98 powders for 7 x 64 Brenneke loaded with the .284 | 184gr | Berger F-Open Hybrid Target. Alliant Reloder-26 delivers the highest muzzle velocity at 2,648 fps; across all powders the maximum-charge window runs from 1,509 fps to 2,648 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 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 184.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2213 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 Varmint rank at the top here: for 7 x 64 Brenneke with the .284 | 184gr | Berger F-Open Hybrid Target 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.