Originally Posted by
lemoyne
Just in case anyone is interested: On the second one I did I started using a end mill with a 40degree angle on the end of the bit to finish the seat for the vent liner. 25/64 in diameter this gives a match to the base of the vent liner for a better seat. Lee
Am i to understand that if i use my 25/64 drill that seems to have about a 30* angle on the end of it, i will have a situation where the vent liner won't marry up to the breech plug very cleanly. I don't know if i can grind that much of the end of the drill without ruining it. So, i should be looking for that specific end mill?