Load data for 7 x 65 R Brenneke + .284 | 145gr | Speer Boat-Tail

7 x 65 R Brenneke cartridge drawing
Speer logo

Load Specifications

Bullet Manufacturer:Speer
Bullet Weight:145 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.56"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:66 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:55,114 psi
Recommended Twist Rate:1:12.0

Load data in caliber 7 x 65 R Brenneke with .284 | 145gr | Speer Boat-Tail bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 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.

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: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>84%49,792 psi90%2674 fps100%
Accurate 2700<<locked>>88%49,821 psi90%2674 fps96.2%
Accurate 3100ᴾ<<locked>>100%43,714 psi79%2674 fps96.7%
Accurate 4064<<locked>>84%46,963 psi85%2674 fps100%
Accurate 4350<<locked>>94%49,690 psi90%2799 fps99.2%
ADI AR 2208<<locked>>86%48,037 psi87%2694 fps99.3%
Alliant Power Pro 2000-MR<<locked>>84%49,385 psi90%2851 fps99.5%
Alliant Reloder- TS 15.5<<locked>>86%48,022 psi87%2717 fps99.9%
Alliant Reloder-15<<locked>>84%48,486 psi88%2733 fps99.4%
Alliant Reloder-16<<locked>>94%47,805 psi87%2799 fps99.3%
Alliant Reloder-17<<locked>>90%48,428 psi88%2831 fps99.9%
Alliant Reloder-23ᴾ<<locked>>100%41,466 psi75%2700 fps99.3%
Alliant Reloder-26ᴾ<<locked>>100%46,731 psi85%2867 fps98.8%
Baschieri & Pellagri 107<<locked>>82%49,545 psi90%2753 fps99.3%
Bofors RP3<<locked>>86%48,356 psi88%2730 fps99.9%
Bofors RP7<<locked>>90%48,762 psi88%2703 fps96.2%
Hodgdon H380<<locked>>86%49,139 psi89%2740 fps98.8%
Hodgdon H414<<locked>>88%46,760 psi85%2749 fps96.5%
Hodgdon Hybrid 100V<<locked>>96%47,384 psi86%2733 fps99.8%
Hodgdon LEVERevolution<<locked>>84%46,934 psi85%2736 fps99.9%
Hodgdon Superformance<<locked>>92%48,878 psi89%2815 fps96.5%
Hodgdon TrailBossᴾ<<locked>>100%35,737 psi65%1729 fps100%
Hodgdon VARGET<<locked>>84%47,703 psi87%2690 fps99.8%
IMR 3031<<locked>>84%49,313 psi89%2720 fps100%
IMR 4064<<locked>>86%47,123 psi86%2671 fps99.3%
IMR 4166 Enduron<<locked>>88%49,617 psi90%2694 fps97%
IMR 4350<<locked>>94%49,066 psi89%2730 fps96.4%
IMR 4451 Enduron<<locked>>88%47,369 psi86%2680 fps96.4%
IMR 4831<<locked>>98%47,935 psi87%2753 fps99.1%
IMR 4895<<locked>>84%49,676 psi90%2766 fps99.8%
Lovex D073.6<<locked>>82%49,748 psi90%2720 fps100%
Lovex S060<<locked>>82%49,647 psi90%2674 fps99.8%
Lovex S062<<locked>>84%47,659 psi86%2680 fps100%
Lovex S065<<locked>>90%46,992 psi85%2677 fps97.8%
Lovex S070<<locked>>92%47,659 psi86%2710 fps96.9%
Norma 201<<locked>>82%49,139 psi89%2694 fps100%
Norma 202<<locked>>82%49,458 psi90%2697 fps100%
Norma 203B<<locked>>84%47,790 psi87%2723 fps99.6%
Norma MRPᴾ<<locked>>100%46,528 psi84%2822 fps96.2%
Norma URP<<locked>>94%48,936 psi89%2785 fps99.1%
Ramshot Big Game<<locked>>84%47,906 psi87%2743 fps99.6%
Ramshot Hunter<<locked>>94%47,674 psi87%2776 fps97.6%
ReloadSwiss RS 14ᴾ<<locked>>100%36,390 psi66%1772 fps100%
ReloadSwiss RS 50<<locked>>86%49,487 psi90%2723 fps97.6%
ReloadSwiss RS 52<<locked>>82%48,602 psi88%2795 fps99.4%
ReloadSwiss RS 60<<locked>>88%48,051 psi87%2828 fps100%
ReloadSwiss RS 62<<locked>>94%49,240 psi89%2818 fps99%
ReloadSwiss RS 70<<locked>>94%48,718 psi88%2835 fps98.7%
Rottweil R 902<<locked>>84%49,676 psi90%2697 fps100%
Rottweil R 903<<locked>>88%48,530 psi88%2726 fps99.9%
Rottweil R 907<<locked>>90%48,762 psi88%2703 fps96.2%
Shooters World Long Rifle<<locked>>90%46,992 psi85%2677 fps97.8%
Shooters World Match Rifle<<locked>>82%49,748 psi90%2720 fps100%
Shooters World Precision<<locked>>84%47,659 psi86%2680 fps100%
Shooters World SW4350<<locked>>92%47,659 psi86%2710 fps96.9%
SNPE Vectan SP 11<<locked>>86%46,615 psi85%2726 fps99.5%
SNPE Vectan SP 9<<locked>>82%48,602 psi88%2713 fps99.7%
SNPE Vectan Tubal 5000<<locked>>86%47,703 psi87%2598 fps100%
SNPE Vectan Tubal 7000<<locked>>90%46,746 psi85%2628 fps96.4%
Somchem S355<<locked>>88%49,052 psi89%2730 fps99.9%
Somchem S365<<locked>>96%47,123 psi86%2792 fps100%
Unknown powder<<locked>>90%46,702 psi85%2740 fps98.3%
Vihtavuori N133<<locked>>82%47,514 psi86%2582 fps100%
Vihtavuori N135<<locked>>84%49,255 psi89%2664 fps100%
Vihtavuori N140<<locked>>84%49,211 psi89%2671 fps100%
Vihtavuori N150<<locked>>92%47,065 psi85%2664 fps100%
Vihtavuori N160<<locked>>90%46,963 psi85%2710 fps98.7%
Vihtavuori N540<<locked>>84%48,892 psi89%2690 fps100%
Vihtavuori N550<<locked>>90%47,268 psi86%2753 fps98.7%
Vihtavuori N555ᴾ<<locked>>100%45,759 psi83%2776 fps99.2%
Winchester 6.5 StaBALL<<locked>>92%47,805 psi87%2710 fps99.9%
Winchester 760<<locked>>88%46,760 psi85%2749 fps96.5%
Winchester StaBALL HDᴾ<<locked>>100%37,275 psi68%2713 fps99.4%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%43,772 psi79%2582 fps100%
Accurate 2700<<locked>>86%46,514 psi84%2615 fps95.4%
Accurate 3100<<locked>>96%38,014 psi69%2559 fps95%
Accurate 4064<<locked>>80%41,423 psi75%2579 fps100%
Accurate 4350<<locked>>82%32,706 psi59%2454 fps95%
ADI AR 2208<<locked>>80%40,059 psi73%2543 fps97.9%
Alliant Power Pro 2000-MR<<locked>>80%43,047 psi78%2730 fps98.6%
Alliant Reloder- TS 15.5<<locked>>80%39,755 psi72%2562 fps99.1%
Alliant Reloder-15<<locked>>80%42,598 psi77%2625 fps98.6%
Alliant Reloder-1643.4 gr82%32,982 psi60%2470 fps95.1%
Alliant Reloder-1745.6 gr80%34,505 psi63%2539 fps97.6%
Alliant Reloder-23<<locked>>90%30,414 psi55%2428 fps95.7%
Alliant Reloder-26<<locked>>92%35,143 psi64%2608 fps95.1%
Baschieri & Pellagri 107<<locked>>80%46,514 psi84%2700 fps98.9%
Bofors RP3<<locked>>80%39,595 psi72%2569 fps99.2%
Bofors RP7<<locked>>88%45,759 psi83%2648 fps95.5%
Hodgdon H380<<locked>>80%40,350 psi73%2572 fps97%
Hodgdon H414<<locked>>86%43,758 psi79%2694 fps95.7%
Hodgdon Hybrid 100V<<locked>>80%28,355 psi51%2316 fps95%
Hodgdon LEVERevolution<<locked>>80%41,147 psi75%2628 fps99.4%
Hodgdon Superformance<<locked>>90%45,556 psi83%2753 fps95.6%
Hodgdon TrailBoss<<locked>>80%26,542 psi48%1542 fps100%
Hodgdon VARGET<<locked>>80%42,105 psi76%2589 fps99.2%
IMR 3031<<locked>>80%43,511 psi79%2628 fps100%
IMR 4064<<locked>>80%39,131 psi71%2516 fps97.9%
IMR 4166 Enduron<<locked>>84%43,990 psi80%2589 fps95.6%
IMR 4350<<locked>>92%46,050 psi84%2677 fps95.6%
IMR 4451 Enduron<<locked>>86%44,498 psi81%2625 fps95.7%
IMR 4831<<locked>>86%32,706 psi59%2438 fps95.1%
IMR 4895<<locked>>80%43,642 psi79%2657 fps99.2%
Lovex D073.6<<locked>>80%46,615 psi85%2671 fps100%
Lovex S060<<locked>>80%46,876 psi85%2628 fps99.5%
Lovex S062<<locked>>80%42,105 psi76%2582 fps99.6%
Lovex S065<<locked>>84%39,059 psi71%2523 fps95.7%
Lovex S070<<locked>>88%42,206 psi77%2605 fps95.4%
Norma 201<<locked>>80%46,050 psi84%2644 fps99.9%
Norma 202<<locked>>80%46,354 psi84%2648 fps100%
Norma 203B<<locked>>80%41,959 psi76%2615 fps98.9%
Norma MRP<<locked>>98%43,308 psi79%2759 fps95.2%
Norma URP<<locked>>84%35,244 psi64%2513 fps95.8%
Ramshot Big Game<<locked>>80%41,829 psi76%2631 fps98.7%
Ramshot Hunter<<locked>>88%39,334 psi71%2612 fps95.2%
ReloadSwiss RS 14<<locked>>80%26,963 psi49%1578 fps100%
ReloadSwiss RS 50<<locked>>80%40,683 psi74%2556 fps95.4%
ReloadSwiss RS 52<<locked>>80%45,382 psi82%2736 fps99%
ReloadSwiss RS 6045.6 gr80%36,724 psi67%2605 fps99.8%
ReloadSwiss RS 62<<locked>>84%34,766 psi63%2526 fps95.4%
ReloadSwiss RS 70<<locked>>86%37,202 psi68%2595 fps95.5%
Rottweil R 902<<locked>>80%43,918 psi80%2595 fps99.8%
Rottweil R 903<<locked>>80%37,376 psi68%2516 fps98.5%
Rottweil R 907<<locked>>88%45,759 psi83%2648 fps95.5%
Shooters World Long Rifle<<locked>>84%39,059 psi71%2523 fps95.7%
Shooters World Match Rifle<<locked>>80%46,615 psi85%2671 fps100%
Shooters World Precision<<locked>>80%42,105 psi76%2582 fps99.6%
Shooters World SW4350<<locked>>88%42,206 psi77%2605 fps95.4%
SNPE Vectan SP 11<<locked>>80%38,334 psi70%2566 fps98.1%
SNPE Vectan SP 9<<locked>>80%45,629 psi83%2664 fps99.4%
SNPE Vectan Tubal 5000<<locked>>80%39,552 psi72%2461 fps100%
SNPE Vectan Tubal 7000<<locked>>88%43,816 psi80%2575 fps95.6%
Somchem S355<<locked>>80%38,014 psi69%2520 fps98.5%
Somchem S365<<locked>>80%27,731 psi50%2352 fps96.3%
Unknown powder<<locked>>82%35,781 psi65%2513 fps95.2%
Vihtavuori N133<<locked>>80%44,759 psi81%2539 fps100%
Vihtavuori N135<<locked>>80%43,598 psi79%2575 fps100%
Vihtavuori N140<<locked>>80%43,439 psi79%2575 fps100%
Vihtavuori N150<<locked>>80%32,532 psi59%2375 fps98.3%
Vihtavuori N160<<locked>>80%33,475 psi61%2434 fps95.1%
Vihtavuori N540<<locked>>80%43,033 psi78%2595 fps100%
Vihtavuori N550<<locked>>80%34,084 psi62%2477 fps95.2%
Vihtavuori N555<<locked>>88%30,951 psi56%2454 fps95%
Winchester 6.5 StaBALL<<locked>>80%32,068 psi58%2385 fps96.9%
Winchester 760<<locked>>86%43,758 psi79%2694 fps95.7%
Winchester StaBALL HD<<locked>>92%28,761 psi52%2451 fps95.2%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 95 powders for 7 x 65 R Brenneke loaded with the .284 | 145gr | Speer Boat-Tail. Alliant Reloder-26 delivers the highest muzzle velocity at 2,867 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,867 fps. Accurate 3100 gives the best case fill at 100 %, and 95 of the 95 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (380 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:12.0 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. Alliant Reloder-17, ReloadSwiss RS 60, Alliant Reloder-16 rank at the top here: for 7 x 65 R Brenneke with the .284 | 145gr | Speer Boat-Tail they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, ADI AR 2213, Alliant Reloder-19 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.

← All load data