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

38 SC case-mouth flare GSI vs. Mr Bullet Feeder

Recommended Posts

I'm finding that I need to run a fair amount of case-mouth bell or flare to get my GSI bullet feeder to run reliably. Particularly with Zero 125 gr JHP as they have a pretty sharp edge on the base, at least compared to MG JHPs. After CasePro roll sizing and then running them through a Dillon sizing die I get a very consistent case OD of .378" up towards the case mouth. I seem to need a flared diameter of at least .386-.388", about .005" of flare radially, to not have a 1-in-50 or so jam where the case mouth catches the lower edge of the bullet and digs into the jacket. The GSI works like a champ otherwise, though I can out-run* it when I'm really clipping along, and I can accept a reduction in case life for the benefits offered by the auto bullet feed (though I've seen no case mouth cracks yet) but I am curious what those of you who run a MBF are finding you need for case-mouth flare. FWIW when hand placing bullets I can get by with a really minimal flare, maybe a couple of thou at most?

*...but I get to keep my powder-check which I really value as a back-up for my visual check, my eyes ain't what they used to be... :-)

Share this post


Link to post
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.


×
×
  • Create New...