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Old July 29, 2008, 01:18 PM   #2
Scorch
Senior Member
 
Join Date: February 13, 2006
Location: Washington state
Posts: 15,248
Without seeing the rounds and rifle it is hard to say exactly what the problem could be. First, make sure your cases are trimmed to the proper length. Then make a dummy round, and seat a bullet (crimp if you are crimping the bullets).

Several possibilities:
* Cases are too long, forcing the case mouth against the end of the chamber.
* You are not using small base dies and the base of the shell is sticking in the mouth of the chamber.
* You are overcrimping, leaving a small bulge in the neck area, which is binding and not allowing you to extract the round.
* Your die is not adjusted properly, and you are buckling the shoulder of the shell when you crimp, causing the shoulder area to be slightly oversized, binding in the chamber.
* The bullet is seated too far out, engaging the rifling and causing the round to be held in the chamber by interference.

Make a wide stripe down the side of the cartridge with a Sharpie, chamber the round, then look where the mark rubbed off when you extract it.
* If the case is too long, trim your cases.
* If there is a bright area at the case mouth, reduce the crimp.
* If there is a bright area at the head area, switch to small base dies.
* If there is a bright area at the shoulder area, or a micrometer shows a slight bulge, back the crimp die (or seating/crimp die) off.
* If the bullet shows marks from the rifling, seat the bullet deeper.
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