cut a chamber the other day with a new 223 reamer and when I noticed chatter marks in the chamber it was to late to rescue it being about 80 thous from headspace.I finished it in almost one quick pass to load up the reamer and it helped it a bit so I sanded it a bit and tried it.
It left some small ridges along the fired brass nothing serious it grouped well but bugged the crap out of me seeing it was my son's first centerfire so I pulled the barrel back off.
Today I put it back in the lathe cut about 50 thous off the shoulder and redid it by pocking a small hole through a small patch placing it over the pilot of the reamer saturating it with oil and going in rather quickly it did an amazing job the chamber is nice and round like it should be.
I have tried in the past loading up the reamer to prevent chatter and the wax paper method but this is by far the best method I have tried .
this reamer is off to the maker this is the second chamber cut with it with the same results both times.
It left some small ridges along the fired brass nothing serious it grouped well but bugged the crap out of me seeing it was my son's first centerfire so I pulled the barrel back off.
Today I put it back in the lathe cut about 50 thous off the shoulder and redid it by pocking a small hole through a small patch placing it over the pilot of the reamer saturating it with oil and going in rather quickly it did an amazing job the chamber is nice and round like it should be.
I have tried in the past loading up the reamer to prevent chatter and the wax paper method but this is by far the best method I have tried .
this reamer is off to the maker this is the second chamber cut with it with the same results both times.