Before you have your receiver squared, do you know what needs to be done to bring it to a customs spec. Too bad that you already have the bolt before the machine work. If the receiver is machined properly your bolt timing will now be off and To machine it properly you start with reaming the raceways. Now your bolt is loose in the receiver. When you cock it the rear of the bolt will rise keeping the upper bolt lug from being in contact with the lug abutment.
Even a varmint rifle will not really be helped doing this, but do it if it makes you feel warm and fuzzy.
I would recommend barrel, trigger,bedding, and proper load workup.
