Re: Changing a Remmy 700 bolt knob?
OP, I wouldn't just clamp the bolt in a mill vise.
1, you could crush your bolt body.
2, you could rip your handle off while machining.
Its a better idea to make an aluminum jig that goes around the bold body, and clamps onto the handle with most of the pressure.
after you figure out a good way to hold it in the mill vise...
You can just rough mill it down to a .350" semi-circle, then run a boring bar down over it bringing it in to .312", then run a die over it.
Thats not how I do it, but it will work fine if you have a 5/16x24 knob.
Just cutting the factory knob off, milling a flat shelf, drilling a hole(with an end mill), tapping the hole, then screwing a stud into the hole that the knob screws onto would be the easier way to go for you I think.