In far past I always used the Lee case trimmers and was pretty happy with them. They are a little slow.
A couple of years ago I bought an older RCBS trimmer. This is the type with the collet for holding the case head. The problem is that there are small variations in the dia of the case head and this leads to variations in the case length. I then tried holding the case by hand and leaving the collet at one setting. Maybe a little better but still left a lot to be desired. It also would not cut square on the case mouth, there was always a angle to the cut.
I decided to try the Wilson trimmer next. Ron Hoehn has them for less than $30. I also ordered the various case holders for my applications. WOW, what a simple and effective set up. I just trimmed all my 30BR brass for this weekends match. I now have square case mouths and most are dead on the money lengthwise. The worst out of spec might be .0005 difference from the rest.
A couple of years ago I bought an older RCBS trimmer. This is the type with the collet for holding the case head. The problem is that there are small variations in the dia of the case head and this leads to variations in the case length. I then tried holding the case by hand and leaving the collet at one setting. Maybe a little better but still left a lot to be desired. It also would not cut square on the case mouth, there was always a angle to the cut.
I decided to try the Wilson trimmer next. Ron Hoehn has them for less than $30. I also ordered the various case holders for my applications. WOW, what a simple and effective set up. I just trimmed all my 30BR brass for this weekends match. I now have square case mouths and most are dead on the money lengthwise. The worst out of spec might be .0005 difference from the rest.