7X64 Breneke

FLHTCUI

FLHTCUI

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Contemplating delving into the 7x64 Breneke.
So far I have dies and a line on some brass.
Searched the ewe toob and found little info for reputable data.
Lots of web sites (hunting related) with recipes and such and my google foo has found little on powder choice/availability.
I have read that guys use 280 Remington data, but there in lies my concerns.
Two different calibres and suggestions of using the 280 as the base ?
I am not looking to shoot 100 rnds a week, but maybe 100 rounds over a couple of seasons for hunting purposed to sight in and as a hunting load.
Thanks guys.
Rob
 
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QL shows a gross case capacity of 69.0 grs. for the 7x64 [60,191], of which I've had one rifle, a German Mauser 98-based rifle. It shows 67.9 grs. for the 280 Rem. [58,740 psi, the same for its newer twin], which I've also had, a Bishop M98-based rifle & 67.4 grs. for the 7mm Express Remington [58,740 psi], a Remington Model 700 BDL, which is weird, because they are the same cartridge. Presumably, it is because the newer 7mm brass is thicker? Yet, most manuals shows the 64 as being loaded to lower pressure levels, despite its MAP being higher.

Hornady's #3, #4 & #7 manuals lists data for its rimmed twin, the 7x65R, as does the Woodleigh manual, while Hornady's #10 manual lists actual 7x64 data. Vihtavuouri 2024 manual has data, as does the early Lee 2nd edition. Norma 2006 & 2016 manuals also have data.

If only they would have used the normal 7.92x57IS rim & base diameter, there would have never been a reason for the .280 Remington 50 years later.
 
jamesharrison said:
QL shows a gross case capacity of 69.0 grs. for the 7x64 [60,191], of which I've had one rifle, a German Mauser 98-based rifle. It shows 67.9 grs. for the 280 Rem. [58,740 psi, the same for its newer twin], which I've also had, a Bishop M98-based rifle & 67.4 grs. for the 7mm Express Remington [58,740 psi], a Remington Model 700 BDL, which is weird, because they are the same cartridge. Presumably, it is because the newer 7mm brass is thicker? Yet, most manuals shows the 64 as being loaded to lower pressure levels, despite its MAP being higher.

Hornady's #3, #4 & #7 manuals lists data for its rimmed twin, the 7x65R, as does the Woodleigh manual, while Hornady's #10 manual lists actual 7x64 data. Vihtavuouri 2024 manual has data, as does the early Lee 2nd edition. Norma 2006 & 2016 manuals also have data.

If only they would have used the normal 7.92x57IS rim & base diameter, there would have never been a reason for the .280 Remington 50 years later.
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James, Thank you for the details and the QL info ( I do not reload enough to purchase)
I'm still a little off in using the case capacity details.
But, I do see what you are saying... I'll proceed with caution and diligence of course.
Thank you for the recommendations on the reloading manuals specifically to the Hornady Manual #10.
Regards,
Rob.
 
FLHTCUI said:
James, Thank you for the details and the QL info ( I do not reload enough to purchase)
I'm still a little off in using the case capacity details.
But, I do see what you are saying... I'll proceed with caution and diligence of course.
Thank you for the recommendations on the reloading manuals specifically to the Hornady Manual #10.
Regards,
Rob.
Click to expand...
Just be careful, different brass case capacities can skew those numbers. I shoot both, and "mostly", the 7x64 will take slightly heavier loads for similar velocities. I don't have my load books handy, but I have my data recorded in one of my note books if you want it. - dan
 
I have three 7x64 rifles at present. Go to European sources for good load data. USA based information almost always gets the 7x64 wrong. Lee publishes reduced 280 Rem data with no explanation why. Hornady publishes 7x65R data ( a low pressure Rimmed cartridge otherwise identical but designed for single shots and drillings) instead of proper 7x64 data for bolt action rifles. The 7x64 has maybe one or two grains less powder capacity than the .280 Rem, but has a very long throat which more than makes up for that small difference. A nosler partition 160 gr. bullet is actually out of the case before it touches the rifling. The extra long freebore keeps initial firing pressures low. USA loads data sources almost always say "use reduced .280 data" but in fact in the five 7x64 rifles that I've loaded for, I found I can safely load heavier / faster velocity loads than what are listed for the .280. My rifles with 22" barrels can safely reach 2850 fps with standard cup and core 160 grain bullets.
VV160 is very good, and there is good data listed on the VV site.
57.1 gr. under a Nosler Partition 160 gr. in Norma brass, Rem 9-1/2 primer is a nice load in my rifles.
I've also had good results from
56 gr. IMR4831, Rem case, Rem 9-1/2 and a Speer, Sierra, other standard cup and core 160 grain or the Hornady 154 gr.
You'll need to work up in your rifle, but I predict you'll be happy with one of those loads.
When I was working on those two loads, I checked for the standard visible "signs" of too much pressure, and when that looked OK and I'd reached the velocity I was happy with, I loaded and fired the same three test cases ten times. Primer pockets remained tight.
 
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jamesharrison said:
Rob:

If you can't get your head around case capacity, send me a PM; we'll discuss.
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No worries JH, I’m finding dribs and drabs about the 7X64 Berneke and relearning about reloading from the past.
The lack of info on the 7X64 is what causes me to overthink some things.
Appreciate the reaching out with offers of assistance.
Components are readily available, but the new powders add another ingredient to over think.
Thanks to all who have been reaching out.
Rob
 
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