7x64 Brenneke, The Wundercaliber

[jgonzalez]

Wild boar

 

[jgonzalez]

And black antelope

 

[CBH Australia]

Fallow doe , 7x64 mauser 66 @ 170m 135 atomic
View attachment 626392

Would you be happy to share your load data or powder choice?
I have the projectiles. I can’t find published 7x64 data and there is possibly no published data for that projectile .

 

[264]

Would you be happy to share your load data or powder choice?
I have the projectiles. I can’t find published 7x64 data and there is possibly no published data for that projectile .

RWS case, rem 91/2 primer , adi 2209 52 gr, 135gr atomic
Accurate and works well on game.

Use 280 rem. data

 

[CBH Australia]

RWS case, rem 91/2 primer , adi 2209 52 gr, 135gr atomic
Accurate and works well on game.

Use 280 rem. data

Thanks,
I’ve been reading .280rem load data .
supplied load is using AR2213sc with the 162 ELD-x but I can easily try the AR2209 with the 135 Atomic 29
Thanks again

 

[yamoon]

I don’t own a 7x64, but do own a 12ga over 7x65r, I have had it about a year but haven’t fired it yet.
Mike

 

[CBH Australia]

@264

Just wondering if you measure the jump to the lands with the Atomic 29 projectiles

I found all but one of the projectiles pictured below are out of the case before touching the lands.

I’ve read up on it and it seems the long free-bore may be by design from older ammo having round nose projectiles.

I’m keen to test a couple of projectiles for accuracy and hopefully in the field.

 

[264]

Overall length of loaded atomic 135 for my rifle is 82mm, so 2mm less than recommended.
Magazine length will dictate length.

 

[CBH Australia]

Overall length of loaded atomic 135 for my rifle is 82mm, so 2mm less than recommended.
Magazine length will dictate length.

Thanks. Mine is a Tikka and Tikka magazines are known to be short. Probably to Saami orCIP specs but they restrict the handloader who would like to seat further out.

What I have found is on this particular the Tikka the 7x64 is that the freebie in the chamber is quite long if I have explained that right.

I have not loaded these yet but if I seat any of the projectiles pictured other than the 162gn ELD-X they will be seated a long way of the lands and will have a long jump to the lands. To the point of they will be well clear of the case before they engage the lands.

This has been measured using a Hornady measure.

This is a the only rifle I have that I have found this. From the little I can find online the 7x64 has a long throat and it seems this is a standard set by the older rifles and military cartridges of the time.

That’s how I understand it and how I’m reading it but it f someone can see something different please help me.