Case Master Concentricity Gaging Tool

[Seeking_Coyotes]

Hey Gentlemen (and Ladies if there are any out there):

I've been reloading about five years and do a bunch of calibers. I am no expert for sure. I use an RCBS Rockchucker, Redding micro adjust case trimmer, Lyman digital electronic scale, etc. Reload for .17 fireball, .223 Service Rifle, .243 Win., 30.06, etc.

I'm looking into getting into long range shooting with a .243 and want to know if some type of case master concentricity gaging tool makes a huge difference for accuracy. Any tips...thoughts, etc.?

 

[A j shooter]

If you load straight ammo you don't need one . You have good seating dies you don't need one . Your gun will tell you. Try reading Tony Boyers book of accurcy.
He has a good answer for that . Question. Plus a great read you will learn a lot.