I like it.**

Actually, the Redding Competition shellholders have a constant thickness, but the case-head relief cut in the base gets deeper by 0.002" for each size. They start off ~0.002" deeper than a "standard" shellholder and end up 0.010" deeper by the fifth shellholder. (I went down and measured my `06 Redding holders just now.) Ordinarily this allows you to precisely adjust a "minimum headpace" FL resizing die all the way up & down from GO to NO-GO to fit a particular chamber.

But with an FL die which *appears* already to be too long for the chamber, you are correct. That wouldn't work. `Ya then need to remove a few thousands from the shellholder surface until things chamber, then paint the shellholder some gawdawful color (`ceptin' top & bottom sufaces).

BREAK BREAK.....

While searching around, I came across this citation:
> You may have a problem with your "7.65 BM" dies. I've found over the
> years that the Belgian Mauser has about .01" more headspace than
> the 7.65 Argentineicon. Thus many 7.65 Belgian dies will not size (set back
> the shoulder) enough for cases to chamber in many M91 Argentines.
> If you run into this problem you can take a small amount off the bottom
> of the FL die so the sized cases will chamber. If you have a stone
> point (Hornady now) cartridge headsapce gauge you can easily measure
> the difference between a fired case and a formed case and shorten
> the die that much.
>
> Another option is the Lee 7.65 Argentine dies, they are made correctly
> now for the Argentines.
Argentine Mauser followed me home, now what? - Cast Boolits

Does this sound familiar ?