I concur with most all that- It seems to me if the bullets are .020 different then my efforts to determine ":jamb" and jump were mostly wasted and I in fact don't really know where my ogive is in relation to the rifling ,
so....... where would a guy seat these bullets at?
Wait... when you seat bullets, the seater stem pushes on the ogive, right? Not the base of the bullet. So your ogive overall length should be pretty consistent, it's the location of the bullet base that should vary. Are you measuring ogive overal length of loaded rounds, or just bullets themselves?
If your ogive overall length varies much, then your bullets must have some variation in nose shape between where you measure the ogive and where the seater stem contacts.
