noylj
Member
Who cares?
Unless you are shooting well beyond 50 yards, COL doesn't matter--other than if it is a lot shorter (say more than 0.100" shorter), it can cause pressure problems.
First, get a custom seating plug that only contacts the bullet as low on the ogive as possible and doesn't come close to touching the meplat.
Two, keep the shell plate full of cases so there are no variations at the beginning and end of the loading cycle.
Three, if the round passes the "plunk" test, go and shoot them and determine if they are causing you any problems.
Four, measure every bullet before you seat it to be sure that the COL variation is not just the bullet. While doing this, check the bullet diameter.
Five, get a comparator so you can measure COL at the ogive datum.
Unless you are shooting well beyond 50 yards, COL doesn't matter--other than if it is a lot shorter (say more than 0.100" shorter), it can cause pressure problems.
First, get a custom seating plug that only contacts the bullet as low on the ogive as possible and doesn't come close to touching the meplat.
Two, keep the shell plate full of cases so there are no variations at the beginning and end of the loading cycle.
Three, if the round passes the "plunk" test, go and shoot them and determine if they are causing you any problems.
Four, measure every bullet before you seat it to be sure that the COL variation is not just the bullet. While doing this, check the bullet diameter.
Five, get a comparator so you can measure COL at the ogive datum.