Thread: Neck Tension Issue... I think

Originally Posted by Woody

You say you may have set the sizing die diffently? If you developed your load initially with virgin brass did you actually run that brass in the sizing die before loading or not? If you did'nt, then on the second loading the sizing die may have produced different inside neck tension to the unsized virgin brass. Before resizing used brass it is a good idea to brush inside the case necks with a 7mm nylon or bronze brush. Also if you only resize the neck say half way down compared to full resize your neck tension will differ considerably.

Resized the virgin brass. But will definitely give the inside of the neck a good clean and make sure I'm resizing consistently, cheers.