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No I am loading for magazine fed semi-automatic handguns like czpo9 and Springfield armory hellcat pro.
Reloading 9mm Luger problem
- Thread starter alanwk
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Recycled bullet
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I crimp my 9mm rounds. A light taper crimp seems to help with feeding.
Taper is the recommended method, roll crimp can work, A)if there it enough "ledge" at the case mouth to stop the round in the right place in the chamber, or, (more often) B) roll crimp not catching on the chamber and the round "heasdspacing" on the extractor.
This method does work in many guns where the case rim is fed up underneath the extractor. Not so much with guns that are "push feed" or dropping a single round into the chamber and closing the slide on it.
A roll crimp 9mm isn't a very good idea in an SA revolver (or a Contender single shot) where the case must headspace on the mouth. Irrelevant in a DA revolver using moon clips.
Taper is the recommended method, roll crimp can work, A)if there it enough "ledge" at the case mouth to stop the round in the right place in the chamber, or, (more often) B) roll crimp not catching on the chamber and the round "heasdspacing" on the extractor.
This method does work in many guns where the case rim is fed up underneath the extractor. Not so much with guns that are "push feed" or dropping a single round into the chamber and closing the slide on it.
A roll crimp 9mm isn't a very good idea in an SA revolver (or a Contender single shot) where the case must headspace on the mouth. Irrelevant in a DA revolver using moon clips.
Recycled bullet
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A light taper crimp seems to help with feeding.
^^^this right there
^^^this right there
Taper crimp is not roll crimp (which on a mouth-headspacing case is a no-no)
And were even that (tapering) past a case mouth diameter of 0.379/8 or so beneficial....
...why wouldn't commercial ammunition come that way to guarantee feed/function in life/death situations?
postscript: I'm reloading both jacketed & cast, for six different 9mm autos -- full-size to micro.
And were even that (tapering) past a case mouth diameter of 0.379/8 or so beneficial....
...why wouldn't commercial ammunition come that way to guarantee feed/function in life/death situations?
postscript: I'm reloading both jacketed & cast, for six different 9mm autos -- full-size to micro.
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Agreed. No sense in one beating one's head against a wall.Uuuuuhhh....
I'm going to let the rest of the audience handle this one.
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All three bullets are crimped the same amount. The bullets have a small shelf on the ogive and I set the case mouth there and then crimp into it.
I'll make a picture tomorrow.
Loaded this way they load, feed,fire, hit the paper plate, extract empty 100% in every gun I have ever tested them in.
I'll make a picture tomorrow.
Loaded this way they load, feed,fire, hit the paper plate, extract empty 100% in every gun I have ever tested them in.
Some do have a taper crimp.
Yup. .371-.374 from my measurements.
Why? What's wrong with that? You can say more than that.
I did (see op cit)
Say it again so that I and others understand what you're trying to say. No need to be cryptic about it.
Where's that tolerance indicated in the SAAMI drawing/Post #74
(I usually look for one but did not see it)
Yup.