Thread: Projectile shifting in neck once loaded?

Originally Posted by Max Headroom

My guess is that your necks are getting loose and not gripping the projectile like they did in the first few firings. Everything gets old and tired after awhile.

If you don't have a crimp die, your seating die can be used to crimp the neck if you adjust it right. I've never done this myself, so can't explain how to do it, sorry.

I did wonder this. I was considering just getting a new batch of brass and seeing if the issue stopped.