Thread: Case sizing and O.A.L

Its best to measure off the ogive but there is no way a sst is going to be out by a mm from the ogive to the tip.
FL sized or neck? compressed load? all the same brass? same no of firings?

If your seating depth varies excessively then it is most likely due to inconstant neck tension. This could be from different brands of brass or some new and some well work hardened.

Very compressed loads tend to push the pill back out a bit and this should be constant but will exacerbate any neck tension issues