I was thinking about how to help those without calipers tune or check their ejector wire for proper position. Just so happens that a Nickel is close enough in thickness to use as a gage for maximum height and side position. Of course I have only done this to my own. The action assembly is removed for this check.
I keep a Penny and a Nickel on my bench and use them as quick tools to check suspicious wire positions. I use the Nickle is a high limit .075 gage and a new Penney as a low-limit .060 gage. So anything in-between has been a good position so far.
"Nickel high & Nickel wide" is a good way to remember.
Place a Nickel on top of the feed-throat. Flush top of wire to top of the Nickel.
Push down the Lifter and place the Nickel on the inside of the feed-throat holding it straight up. Flush face of Nickel to side of wire.
For trouble free re-insertion of the action assembly, remember these 3 things to do beforehand.
1. Lock the bolt in the extreme back position. This prevents bending the ejector.
2. Remove the magazine chase tube. This prevents breaking the follower.
3. Cock the hammer. A simple no-go.