Redding Die Categories

[chesty for president]

What is the difference with the different categories of Redding full length sizing dies other than the price going up accordingly

[b()()ga]

How "common" the cartridge is that the die is intended for.

More common - they make and sell more, and they cost less.

Less common - they make and sell less and they cost more.

Like any manufactured item, the per unit cost goes down the more you make - normally.