7mm JRS

[fkroosher]

Found a custom Mark X chambered in 7mm JRS and am looking for anyone with dies or possibly loaded ammo.

Or any experience with this cartridge.

Fred

 

[jjmp]

Hey Fred, the gun writer John Sundra was the originator of this wildcat round he hunted the World and wrote many a great articles . If I can dig up some info I'll pm you here , Cheers jjmp.

 

[GLZ]

https://www.handloadermagazine.com/wildcat-cartridges-4

 

[NotLongRange]

When I was more of a wildcat guy, I looked at this cartridge 20+ years ago. I liked Jon Sundra and he did come up with a cool cartridge.

Just for simplicity sake and at a slight cost in performance, I just ended up with a 280 Ackley Improved.

If you're really into wildcats, then the 7mm JRS is worth tinkering with. If not, I would just set the barrel back and re-chamber to a 280 AI.

 

[roberto-63]

Quite similar to a 7m PRC with a smaller bolt face