Do a Thread search for "Factory Crimp Die" using the search tool. It's an active Thread.
The LEE factory crimp die is a collet style crimping die. It's more flexible to use than conventional taper crimp dies. I'm not familiar with your Dillon crimp die.
You could also see them on the LEE web site. Cost is $11.00 - $15.00.
My AR15 will shoot around 0.75moa with 60gr Hornady Amax. Sometimes better. It's a plain-Jane carbine, however I just installed a FF handguard and a Giessele trigger, so the cost keeps going up!