Jump to content
Brian Enos's Forums... Maku mozo!

RL 550b Crimp Issues


Recommended Posts

I recently purchased some 124 9m RN plated (.355) bullets that crimp at .375-.376. I noticed the bullet is spinning in the case. I checked to see if I can push the bullet on the table and it seems ok. When I over crimp .365-.366 it still does the same thing. The bullet it self is .355 so I know that is okay.

I have the OAL set at 1.100 for my glock 34

Am I missing something on my set-up?

Thank for any input

James

Link to comment
Share on other sites

Tightening crimp can actually loosen the case neck tension on a bullet. .376 is about typical for a .355 bullet. What dies? What headstamp does this happen with or does it happen with multiple brands? I would first try reducing the bell. Then I would toss out offending brass if it's only one. If it's multiple brass then I would probably try LEE sizer or get a Udie.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...