Hornady's case comparator setup and a quality dial caliper should be the first tooling the new reloaded should invest in.
Good shootin' -Al
Excellent advise, but have you tried getting the modified cases lately. I've been measuring to the lands using old school methods because I can't find the cases in the chambers that I need. Been tryin' bout 8 months now.
The Hornady Comparator tool I'm referencing is the one used to measure shoulder set back during sizing.
I've had one of their OAL tools since they were known as Stoney Point....haven't used it for years on a bolt gun as there are better ways to find the lands. They do work nicely on falling block and break open singles shots, though.
I make my own modified cases for that tool when I need them. Let me know what modified cases you need and let's see if we can get you going.
Good shootin' -Al