Did Cooper ever chamber rifles in 17 Javelina and if not what is a 17 JAV?? One of the local gunshops took in a Cooper Model 21 in trade and the barrel is stamped 'COOPER 17 JAV" no other markings on barrel.
Yep... back in the day, Cooper chambered rifles in the 17 Javalina and 17 HeBee.
Dan C over on the Saubier board owned a JAV. I currently own a Cooper 17 HeBee with a Jewell trigger
Friend had a .17 J that was built in the 60's. Trust me when I say after making him cases with his late fathers case forming dies, the J is one of the most labor intensive cartridges you can make. Not worth it.