Bead Blasting????

[ultramagmed]

Guys,

I just finished truing a 700 action. I reamed the racewayto .705, recut the integral lugs, the threads, and the reciever face. I sleeved the bolt, squared the bolt face and trued the lugs........pretty much everything. So my question is.....I was thinking about bead blasting the action and bolt and want to know if it will screw up my newly machined surfaces? Will it change any of my tolerances? And if so will it change them enough to worry about. All of my measurements ended up at .0005 or less, so I don't want to risk damaging anything. The grit of the glass I'm using 60-120 whatever that means, it is slighly rougher than the Remington factory finish. This will be a 1000 yd. gun. Any and all opinions welcome.

Thanks,
Med.

 

[Dennis Sorensen]

There is no advantage to blasting the inside of the action or the bolt body. I would tape off the inside of the action and everything except the bolt handle.

 

[Bob Kingsbury]

Dennis is right, this stuff is abrasive. If you get it in your action
or bolt body, you will add some clearance eventually