Bullets 9mm/357 diameters

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Bullets 9mm/357 diameters

Postby rog54 » 17 Feb 2018 10

Hi,
As I mentioned in another post and a different subject I am going to try reloading 357 sig. As I begin to search for bullets I am getting a little confused and could use some input from ya'll.

1) I read "flat point" is more or less preferred. (due to OAL, enough insertion into necked case etc.). But I see as I search I find few, "FP" bullets. Think I found one from Montana bullets.

2) I start reading the specs and I see .355 which I am familiar with but then some .356 & .357? Is .357 for the magnum load? What about .356?

3) Gavin, (Ultimate reloader), used Hornady XTP which I believe is a hollow point. And essentially the shape of a FP.

Any words of wisdom will be appreciated, Thanks.

Rog
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Re: Bullets 9mm/357 diameters

Postby RBHarter » 17 Feb 2018 11

If you use plated or jacketed it probably won't matter as long as you choose a bullet suitable for your impact speeds .

Cast bullets will make it a lot more important to pick the right dia .

Will this be a 2" 50 yd pistol or a bedroom gun ? Then dia matters more too .

The best advice for the shortest distance to little groups is slug the barrel . Wood or brass dowel and a soft lead round ball or egg sinker and drive it through the oiled barrel . Once shaped it should go easy . 0000B should do for 9/38/357 .

Don't be surprised by the numbers at .357-8 .
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Re: Bullets 9mm/357 diameters

Postby horseman » 17 Feb 2018 11

Perhaps the truncated cone type bullet would satisfy the needs.
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Re: Bullets 9mm/357 diameters

Postby Ohio3Wheels » 17 Feb 2018 19

I have one 357 Sig that I load for and for the most part I use .356 diameter bullets regardless of design. FMJ, HP,plated cast or standard cupro-nickle jackets. That's what the H&K likes so that's what it gets. It is least fond of cast, I was told that the combination of 357Sig, H&K and cast bullets would not be a happy marriage and so far my experience has born that out. On the other hand Berry platted and Sierra jacketed have worked wonderfully.

Remember that despite of the shoulder the 357 head spaces on the case mouth and should be taper crimped not roll crimped. I found it to be a reasonably easy case to load and the H&K isn't too picky except for cast.

YMMV

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Re: Bullets 9mm/357 diameters

Postby GasGuzzler » 17 Feb 2018 22

This comment doesn't help but I don't want the variables of loading a mini-rifle bottleneck case that head-spaces off the mouth.
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Re: Bullets 9mm/357 diameters

Postby Macd » 18 Feb 2018 09

+of
How about these? I could have bought two Polish pistols unfired NIB with spare mags and cleaning rods for $400.00. I didn't and have regreted it ever since.

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Re: Bullets 9mm/357 diameters

Postby rog54 » 18 Feb 2018 20

Not sure I fully understand the head spacing issue. Check out this article.
https://www.capitalcartridge.com/Reload ... -s/256.htm
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Re: Bullets 9mm/357 diameters

Postby Macd » 19 Feb 2018 09

Sounds like a bit of a picky cartridge to reload. I am sure others can measure to the mid-point of a shoulder perfectly as suggested to set up shoulder based head spacing but I haven't been able to perfect that technique. I suppose one could make a collar for a OAL gauge that would work but only for fired cases from one pistol.
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