I started with a lyman univeral case trimmer. I like it pretty good. I can see it wont be the absolute most square cutting, but its fast, and accurate enough for all of my needs. And its relatively easy to use.
As of late, i've been thinking about getting a file trim die for my 30-30. Why? I ask myself this often. Maybe, something simple about it, back to basics. I wouldnt be tied to the bench, using my lee hand press.
So is who uses file trim dies, and why do you use them? is there any advantages or disadvantages to them verses and bench mounted case trimmer?