Rock Chucker JR

[ru1234]

Does anyone know if the Rock Chucker Jr is capable of reloading 30-378? I know very little about reloading. I have a chance to buy one cheap for my 30-378, but I'm told that the JR may not be big enough?

 

[enigma]

I use a rock chucker jr and I reload 338-378 weatherby it works just fine for me no effort refoming case or seeding the bullet.