4) At this time I should bump the neck back .002” and neck size only. That way you minimize working the brass too much, but it also allows you to now headspace off the shoulder rather than the belt. This step is where opinions differ. Some say FL resize, while others will back the die off about 1 turn, color or “soot” the neck shoulder area. In small increments, neck size the die until it gets close to the shoulder then bump the shoulder back .002”. FL resizing and trimming creates more bulge at the belt and case head separation issues.
Both techniques are considered FL sizing. One is the wrong way (usually as indicated in the instructions from die manufacturers - e.g. FL die should contact the shell holder and then some) and the correct way (back off die and than then progressively screw die in).
Bought and sold a Larry Willis collet die - just never needed it. Had .264 Win Mag, 300 Win Mag, .338 Win Mag, and .375 Taylor.
My recommendation: Redding body die (for FL sizing) and Lee collet (for neck sizing).
