Rossi M92 357 Case Bulge
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Thread: Rossi M92 357 Case Bulge

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    Rossi M92 357 Case Bulge

    Searching around other forums, I find that this is not uncommon. These were handloaded and not overcharged as the primers show no signs of overpressure. The couple of hundred saved over a Marlin may be eaten up over time in buying new brass.

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    I'll need to buy some factory .357 Magnum to see if the results are replicated.
    “…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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    Is there a way to do a plunk test in that chamber? I wonder if the COL is not right. What was your load? When I had my Rossi R92, I used my reloaded 38 special , didn't notice any case bulging.
    Qwiks draw likes this.
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    Quote Originally Posted by silverstring View Post
    Is there a way to do a plunk test in that chamber? I wonder if the COL is not right. What was your load? When I had my Rossi R92, I used my reloaded 38 special , didn't notice any case bulging.
    38 Special don't have the same indication of case damage, even when loaded heavy. The 357 rounds feed, chamber, fire and eject just fine.
    “…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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    Haven't owned one in a few years but shot several and no case bulge on any of them even with some hot handloads. A chamber cast would show chamber problems.

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    Quote Originally Posted by TheOldRedneck View Post
    Haven't owned one in a few years but shot several and no case bulge on any of them even with some hot handloads. A chamber cast would show chamber problems.
    I'm not that sophisticated. What I'll probably do is run some factory 357 and if I see the same thing, contact Taurus for a warranty check. I've had it a month now.
    “…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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    I have owned a 92 Rossi .357 for a while now and haven't had any case issues and have ran full tilt for several loads using all different brands of cases from range pickups to newly purchased Starline. I have some Norma case with at least a half a dozen full tilt loads running 2000 fps out of my 20 inch barrel over the chrony.
    Czechbikr likes this.
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    I was mistaken, it seems that the 38 Special also exhibits a bulge at the base, approaching a tear or burst. I plunked a 357 round and it seats fully and falls free from the bore. A random check of my cleaned brass indicated that they are .005-010 shorter than SAAMI case length. In looking at the chamber mouth, it seems that they machined a ramp into the chamber to facilitate feeding perhaps?

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    silverstring likes this.
    “…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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    Here's a look at the chamber with flash and without.

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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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    One of those cases has case head separation. How many times have they been reloaded? The bulging doesn't look out of the ordinary to me, but something caused that case head to split.


    Just a comment. I have an H&R Handi Rifle, 357 with a tight bore. It measures .355. Any factory 357 will pierce the primer. I only shoot handloads out of it. I bought it when I was young and dumb so it's too late to send it back.
    Last edited by sknhgy; 02-07-2020 at 10:05 AM.

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    Just curious - Try to see if one of those fired cases will fit into a 357 revolver chamber.
    elPescador likes this.

 

 
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