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Old May 7, 2012, 07:05 PM   #1
hammered54
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Join Date: September 28, 2010
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.357 for 9mm (.355)

a friends dad left him some "stuff" and amongst this "stuff" were some 125 / 147 grain semi Jacketed bullets for an old 38 he no longer has/
well he asked me if I wanted them...I don't own a 38 but do shoot 9mm...could I use them ? would it be safe being a couple of thous larger ?

thanks Matt.
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Old May 7, 2012, 07:10 PM   #2
dacaur
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Some guns yes, some guns no. I bought some 9mm gun show reloads long ago that were made using .357 diameter HP's. They ran fine in my ruger p-95 and P-89, but would jam my kel-tec PF9 TIGHT. I had to disassemble it to get the first one out of the chamber, after that I tried to just drop a few more in the chamber and they wouldn't go all the way in....
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Old May 7, 2012, 07:22 PM   #3
m&p45acp10+1
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Make a couple of dummy rounds. If they chamber at proper COL then they should feed just fine. The other thing I can think of is to see if someone that loads for .38 spcl/.357 mag would trade them for some .355 plinkers.
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Old May 7, 2012, 08:24 PM   #4
Hammerhead
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I would not use them in 9mm. There is data for .357" jacketed bullets in .38 Super, but I've never seen it for the 9mm.

The 9mm is a tiny, high pressure cartridge and pressure will spike rapidly with any variation in charge weight, bullet seating depth, etc... Using and oversize jacketed bullet would be a huge no-no in my book.
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Old May 8, 2012, 09:38 PM   #5
Sport45
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Take this as an opportunity to buy a .38 or .357mag.

Unless you are talking about several hundred bullets (like maybe a thousand or more) I wouldn't bother trying them in 9mm.
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