Need info on raceway reamer dimension

[X-RingCustomGunsmithing]

Does anyone have a solid dimension on the pilot end the receiver reamer. I am looking to get some precision ground stock and would like to know what the OD on the reamer is to what is going to fit inside the Bushings. So I guess the ID dimension of the pilot bushings would be helpful. But the OD of the reamer Would get a better measurement I think with a micrometer. So if any one has the reading on that and would pass along the info I would really appreciate it.

 

[Rustystud]

For the Rmington bolt raceway reamer Dave kiff makes several different sizes from .701- .715. The pilot bushings ride on a .500 diameter ID and the ODs are variable. I have bushings from .699 to .705 in .0005 increments. PT&G charges about $35.00 each for them. Dave Manson makes a tapered set. I use the same bushings on my truing mandrel.
Nat Lambeth

 

[X-RingCustomGunsmithing]

Good to know I am planning on making a jig on the cnc at my work and then get getting some precision ground rod for an indicator rod but wasnt sure what the bushing ids were so it will slide inside them with no play.