Welcome to the new PGCA Forum! As well, since it
is new - please read the following:
This is a new forum - so you must REGISTER to this Forum before posting;
If you are not a PGCA Member, we do not allow posts selling, offering or brokering firearms and/or parts; and You MUST REGISTER your REAL FIRST and LAST NAME as your login name.
To register: Click here..................
If you are registered to the forum and keep getting logged
out: Please
Click Here...
The grade will determine this. Not the gauge or frame size. And even from gun to gun in the same grade there will be variation. Typically 16 lines per inch is as course as one will find on any Parker. Original checkering Tools were hand made and may not be exactly a given line per inch measurement.