Old School vs Magnum on 86 Dodge W100

Not 100% sure how to answer.... Is this on the 5.2L?

So do you mean your cylinders are measuring something like 3.902 or 3.903"? The bore diameters ought to be measured about 1" down from the top and then around 3" down from the top, so you can see how much of what is called taper is in the bores. Measure inside to outside, not front to back, to see the worst wear. And if you are using telescope gauges, those take a lot of practice and care to get valid readings.

Use a fingernail and feel the top of the bore, where the ring travel stops, and see if you can catch your nail on the edge of the ridge left there. It is not a definitive check, but if you cannot feel a ridge with your fingernail, that is a very good sign.