Cast bullet reloading

22WRF

March 08, 2003 10:56

I was going to load some 380 and 9mm Luger with the same cast bullet.
95gr round nose .356.
But thought I'd ask the rest of you reloader here what you tink about this since the .380 I have are sized .356 and the 9mm being .355

I just got my RCBS dies and haven't load any yet



SOLD MY COW SO I DON'T NEED YOUR BULL
A Grumpy Old Man

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  Ampersand

  March 08, 2003 11:06

  As far as I know the bore diameter for 9mm Luger, .380 ACP, and .38 Super is .355. A 95 grain bullet is a little heavy for the .380 and a little light for the 9mm but you should be able to use it in both.
  
  &

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  Iconoclast

  March 08, 2003 11:28

  22WRF, check the diameter of the bullet after you cast some, before sizing, often they cast differently than advertised, depending on alloy. As a general rule of thumb, unless you are casting with extremely hard alloy and/or maxing out loads, .001 - .003" over bore diameter is desirable with cast bullets. At least that was the 'old time' wisdom . . . I've followed it with a variety of firearms over the years and had good luck in terms of both apparent pressure levels and accuracy. Ideally, when you size the bullets, you will see evidence of the sizing die completely around the circumference of the bullet, but not any slivers of alloy shaved off. You can take a good load (check the Lyman manual) and play with different diameters, but bet you will find your best results .001 - .002 over nominal bore diameter. That opinion and a buck will bring a cup of java in some fast food joint.

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  aby80

  March 08, 2003 11:29

  Go ahead and do it. I have been loading those size bullets it my .380 and 9mm for years. I use those as plinking loads at 15 yards.
  
  If you don't care where you are going, you can't get lost.

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