7 Claymore cartridge?

[1340]

Has anyone heard of this cartridge? A recent Eric Cortina video mentions shooting a rifle chambered in 7 (mm) Claymore.
TIA

 

[jamesharrison]

Were they not simply referring to rifles using a Clymr chassis, which are available in a number of chamberings?

 

[Dylan4570]

I think I remember something about it.

I think it's a wildcat that is basically a 7mm Creedmoor. similar to the 7mm-08 AI?

 

[1340]

I'm pretty sure he said 7 Claymore. Meaning cartridge?

 

[4n2t0]

AI says....

The term "7mm Claymore" refers to a custom or wildcat cartridge that involves necking up a 6.5mm case to accept a 7mm bullet.

 

[the radium king]

so a 7mm-08?

 

[DGY]

so a 7mm-08?

No, the 7mm-08 is taking a 308 case and necking it down to 7mm…

 

[Driftluv]

its a 6,5 creedmoor neck up to 7mm. Claymoor is for Clay (his partner) that's where the name come

 

[Denver Steve]

Basically a 7mm-08 with a 30 degree shoulder, and slightly straighter case walls I think.

 

[1340]

So it's Claymoor?
Sounded like he said Claymore.
In the past he was working with the 6.5x47 necked up to 7mm as well.

 

[Driftluv]

yess Claymoor! Creed-moor/ Clay-moor

 

[Driftluv]

yeah the 7SWC. Necked up 6.5x47 lapua

 

[1340]

So the 7 Claymoor is the 7SWC and 7x47?

 

[todbartell]

why do they make these newfangled whizz bang cartridges when we have the 130 year old 7x57 Mauser!

 

[remington jim]

Would be like a 7 IHMSA

 

[dan belisle]

So the 7 Claymoor is the 7SWC and 7x47?

No the 7 Claymoor is a necked up Creedmoor case. The 7x47 (in this case) is a necked up 6.5x47 Grendal case. 7 SWC is one of the Sherman wildcats, I think. There used to be a 7x47 back in the day based on the 222 Rem Mag case as well. Someone saw the Rem 6x47 and went hmmm. - dan

 

[todbartell]

6.5x47 isn't close to the Grendel, it is based on a .473 case head and holds 33% more volume than the Grendel

6.5x47 runs about 50 fps less than the Creedmoor (gasp! - not the Creedmoor!) and 200 fps more then the Grendel with equal bullet weight / barrel length / chamber pressure). The wildcat 6.5 GT would lag behind the x47 by 50 fps if anybody cares

 

[dan belisle]

6.5x47 isn't close to the Grendel, it is based on a .473 case head and holds 33% more volume than the Grendel

6.5x47 runs about 50 fps less than the Creedmoor (gasp! - not the Creedmoor!) and 200 fps more then the Grendel with equal bullet weight / barrel length / chamber pressure). The wildcat 6.5 GT would lag behind the x47 by 50 fps if anybody cares

I stand corrected. - dan