Beretta 81BB At The Range Today...We Be Jammin' - Page 2
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Thread: Beretta 81BB At The Range Today...We Be Jammin'

  1. #11
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    I'm also wondering if maybe the case mouth was not flared enough and caused the jacket build up. In the vertical photo it looks like the build up is limited to the left side, more or less. But that right side is shadowed a little so it's hard to tell for sure.

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    Quote Originally Posted by Czechbikr View Post
    They are plated round nose. Maybe the plating was pushed up as it tried to chamber? I'll have to compare this one to one that hasn't been loaded up in the gun.
    Did you seat and crimp in one step? if yes, that's a problem. Try seating and crimping separately.
    Definition of clip

    1: any of various devices that grip, clasp, or hook
    2: a device to hold cartridges for charging the magazines of some rifles; also : a magazine from which ammunition is fed into the chamber of a firearm.

    http://www.merriam-webster.com/dictionary/clip

  3. #13
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    Quote Originally Posted by glenwolde View Post
    Did you seat and crimp in one step? if yes, that's a problem. Try seating and crimping separately.
    It's a three die set...my .380 three die set produces great ammo. I'll probably back off the crimp a tad to see what that does. If I cannot get it to produce good ammo, then my hunt for the .380 barrel will intensify to convert that pistol.
    “…democratic socialism, the great utopia of the last few generations, is not only unachievable but that to strive for it produces something utterly different – the very destruction of freedom itself. As has been aptly said: ‘What has always made the state a hell on earth has been precisely that man has tried to make it his heaven.'” F.A. Hayek

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    If you are using once-fired brass with PLATED bullets, I would suggest a mild chamfer/deburr of the case mouth, as a definite first step.

    Then, check your casemouth exander plug for proper diameter. The base of the bullet should fit INSIDE the case mouth before seating begins.

    Plating is notorious for "misbehaving" maybe because it looks like a jacketed bullet, we somehow, expect it to behave like a jacketed bullet, when in reality it is a cast/swaged bullet with a deceptive appearance. Neither fish nor fowl, so to speak.

    Your expander-plug should make the case, below the mouth, tight enough to hold a bullet without a roll crimp in all instances. The top .060" or .070" should expand the case to accept the base of the bullet deeply enough that it will not fall over or out. That .060" or .070" is what your taper crimp die should resize down to fit in the chamber without friction. If you can set your dies up to that program, you will find that you can load for nearly every firearm without problem.

    See pic below. I have turned or ground almost all of my exp-plugs to this kind of step to fit the bullets I load. Most factory plugs have a step, but it varies in size from manufacturer to manufacturer. It was difficult getting my LEE "powder-through-expander" dies to this condition, while also activating the powder measure.

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    Quote Originally Posted by Czechbikr View Post
    Here's the look at the round. The case is headstamped G.F.L 7.65mm. I see no noticeable bulge which is usually at the base of the case. One thing that stands out not is the somewhat aggressive crimp which was applied by the Lee Bullet Seating die. I only have the 3 die set foregoing the FCD die that I have for all other sets except for the .380. Once I check the gauge at the top of the case and plunk it I may learn what the issue is.

    Attachment 450817

    Attachment 450819
    Why that dirty little...
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    Are we there yet?
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    Got to the reloading room to install the new used grips that I won off Ebay. They are much nicer than the ones the gun came with. The grip screws have the thinnest slot that I have ever seen and my screwdriver set only has a 1/4" wide bit that is thin enough to fit. The screws were already boogered up a bit and I added to it. New screws might be in the offing to match the prettier grips. I put the soldering iron on them to loosen and I am pretty sure that the original grips had been on for decades. Gunky frame underneath and the screws have a bit of rust around the screw head.

    While I had it apart from the range trip I cleaned it and examined the chamber for any clue that would indicate why the rounds would not chamber. I used a bronze brush to clean it well and began to plunk test the rounds I have loaded.

    The ones that plunk are on in the rectangular bin and the out of spec rounds in the circular one. The good ones measure .333 +/- .002 and the ones that are causing the jams are at .337 =/- .002. The measurements are near the fop of the case at the bullet seating position.

    All are loaded with the same die set at the same time with the same Berry's bullets. Almost all of the cases that are too fat are the G.F.L 7.65 cases...the Herters are a bit fat also. The US brands like R-M, WW and so on comprise the ones that are in spec and plunk well.

    The issue has to be with the wall thickness of some of the cases. The first thing I'll do is sort the brass to better insure that I am producing ammo that works. Glad that I didn't load a bunch more!

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    Pretty new (er) grips

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    “…democratic socialism, the great utopia of the last few generations, is not only unachievable but that to strive for it produces something utterly different – the very destruction of freedom itself. As has been aptly said: ‘What has always made the state a hell on earth has been precisely that man has tried to make it his heaven.'” F.A. Hayek

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    The pistol looks great with the new grips!

    Looks like you have the feeding issue figured out. I do have one other thought on it. Have you measured any of the projectiles? I would measure some unloaded projectiles, if you have any left, and I would measure some of the loaded ones just above the case mouth to see if there is any size difference there. I'm thinking you probably wont' find in variation but I would check anyway.
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