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Author Topic: How long can it go?  (Read 1151 times)

Outbreak

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How long can it go?
« on: February 14, 2014, 02:10:52 pm »
I am trying to figure out how long I can make a 9mm Luger cartridge.

Why: I have a RIA 9mm Doublestack 1911. It's based on a Para frame and uses Para mags which are designed for .38 Super. 9x19 is about 1.16"COAL, while .38Super is closer to 1.24"COAL.

My 9x19 loads are nose diving into the feed ramp. One thing I've learned about 1911's is that they like bullets that are about as long as .45ACP. My STI Edge in .40 likes loads that are almost as long as 10mm, way over SAAMI Spec for .40S&W. I'm thinking this 9mm pistol would benefit from longer cartridges.

Right now, my loads are around 1.16" with 115gr FMJ. I don't know how much longer I can go with those bullets, but a 124gr or 147gr would be longer, and should allow me to make the COAL longer without increasing empty space in the case or having to crimp the everlovingpiss out of the case mouth.

Thoughts?
TexasOutbreak

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    only1asterisk

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    Re: How long can it go?
    « Reply #1 on: February 14, 2014, 02:30:20 pm »
    I am trying to figure out how long I can make a 9mm Luger cartridge.

    Why: I have a RIA 9mm Doublestack 1911. It's based on a Para frame and uses Para mags which are designed for .38 Super. 9x19 is about 1.16"COAL, while .38Super is closer to 1.24"COAL.

    My 9x19 loads are nose diving into the feed ramp. One thing I've learned about 1911's is that they like bullets that are about as long as .45ACP. My STI Edge in .40 likes loads that are almost as long as 10mm, way over SAAMI Spec for .40S&W. I'm thinking this 9mm pistol would benefit from longer cartridges.

    Right now, my loads are around 1.16" with 115gr FMJ. I don't know how much longer I can go with those bullets, but a 124gr or 147gr would be longer, and should allow me to make the COAL longer without increasing empty space in the case or having to crimp the everlovingpiss out of the case mouth.

    Thoughts?

    It depends on your chamber throat.  Lots of people load 9mm Major and .40 Long for competition use.  They want the added reliability and the extra margin of safety with faster, more economical powders.  In most instances, to get the maximum benefit the throat has to be lengthened a bit.  This is a relatively inexpensive process as only the barrel needs to be sent in.

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