Froznone wrote:Horseman wrote: Pin gauges tell me the opening in the FCD is .376.
Since SAMMI spec for minimum chamber is .379", who's fault is it for accepting an out of spec die from LEE?
You're using a broken tool and complaining that it doesn't work.
Send it back to LEE and ask for one that is in spec.
Minimum chamber for .357 Magnum is .3800", not .379". However, the minimum chamber is not the same as the maximum cartridge. Max case diameter is .379". The tolerance is -.006", so anything measuring .373" through .379" is "within spec." That would put a die with an opening of .376" right in the middle of the spec. range, which is probably not a bad place for a manufacturer to be placing itself.
http://www.saami.org/PubResources/CC_Dr ... Magnum.pdf