m1903a1 tryout results

[ssgross]

By the way, it might still want a touch of polishing.

I did indeed polish it again. Very happy with the results.
I also double checked the the max CBTO again with my Hornady gauge. It is about 6 thous. less free bore now than there was. Assuming that I didn't cut the throat at all, (I didn't notice any debris on that part of the reamer), this must have been how much more I pushed the shoulder in. I was tempted to put steel blue layout fluid in there to take pics, but decided against the high likelihood of making a big sloppy mess of it.