by Hoot » Sat Jul 31, 2010 12:36 pm
You should measure them before you trim them. Not a single one I got was the spec 1.70 length. They will shrink a little after each subsequent loading, so why make them any shorter before you even start? When I load a group of 5, I do try to use ones the same length. I sort them in Plano compartmental boxes by (number of times reloaded - resized length) in .002 jumps. IE 2X1.685/86, 3X1.687/88, 4X1.689/90, 5X1.691-92 etc. I had bought a Lee trim cutter set and had to chuck it in the drill press and turn it down a little with some 400 wet-or-dry until it fit in the mouths. I'm a proponent of not using the expander in the interest of maximum neck tension. I just guide the bullet in until it barely starts, then rotate them in 1/3 turns with two deepening additional seating plunges until it reach the stop point. Might be overkill, but for what it costs to reload this beast, I figure why not go the extra distance ensuring accuracy. I'm not into Blammo Ammo shooting.
Hoot
In Theory, there is no difference between theory and practice. In Practice, there is.