wileybelch
New member
My Rem 7400 (.30-06) uses a simple 3/4" hex nut to hold the barrel to the receiver. Another 7400 (.280 Rem) I've seen has a 'ring' nut with several holes in it (for use in removal/tightening the barrel). What tool is needed for removing/installing this ring nut? Some kind of spanner wrench?? Where can it be obtained? Or, how do you remove it so the barrel can be taken out?