Here's another way to skin the Cat. I do this with my hunting Rifle loads for 30/06, 270, 300 Mag, 260 & 223.
You can buy a Hornady seating die for $30.00 (unless you're using a Hornady die set) and then a Hornady Micrometer seating stem for $40.00. $70.00 total cost.
The Hornady seating stem is designed to be able to be used on other Hornady seating dies since the seating die has the caliber specific seating stem in it. I use only one Micrometer stem to seat 30/06, 270 & 300 mag. since they are all the same maximum COAL. I do use a different one for the 223 & 260 since they are shorter OAL cartridges. So, my cost for three seating dies and one seating stem is $130.00 for all 3, rather than paying about $110 per caliber.
All you have to do is to keep notes in each die box on the particular seating length mic setting for individual bullets. Works perfectly.
For my 308 precision loads, I use the Redding Mic seater. I wouldn't hesitate to buy the Forster Mic seater.
The Forster micrometer die is a great die. They cost between $110-$120.00.