Author Topic: collet dies & crimping High pressure?  (Read 291 times)

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Offline Gallahad

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collet dies & crimping High pressure?
« on: May 16, 2006, 08:24:21 AM »
My favorite dies are lee collet dies. I get superb accuracy using them.  For best results one is supposed to seat the bullet just off, or touching the lands,  which gives good start pressure.  Other dies require a crimp for the start pressure among other things.  My problem is Id like to crimp my bullets in after using my collet dies, so they are suitable for hunting.  Iv'e hunted with my collet die reloads  and had a bullet stay in the lands after ejecting the case. BIG mess, powder everywhere :roll: Yeah, I know, but I like hunting with accurate loads.  SO,  will using a factory crimp die on a bullet seated out to the lands cause extra/too much pressure? I want to ask before I try anything, so I don't get blowed up! :D

Offline Grumulkin

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collet dies & crimping High pressure?
« Reply #1 on: May 16, 2006, 11:12:52 AM »
Using the factory crimp die will not cause excess pressure.  I use them frequently for a little extra security in keeping the bullet in place.

I presume that when you say "out to the lands" you mean just short of the lands.  If the bullet actually engages the lands, excess pressure could result but this is from engaging the lands and not from using a factory crimp on the case.