Ammunition & Hand Loading > Cartridge and Shotshell reloading

9mm handloads......

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PhilK:
Small pistol primer, 4.4g Bullseye, 115g projectile.

They headspace on the rim of the case, so trimming each one to the correct length is essential.

The Speer reloading manual has a discussion specific to 9mm reloading.  I can't find it online.  They note that, given the small case volume, even small variations in seating depth (too deep) can cause dramatic increases in pressure.

I've used Surplus, Winchester bulk (FMJ and JHP), and Berry's plated (all 115g) with reasonable results.

PhilK

JimP:

--- Quote from: PhilK on January 09, 2009, 10:18:22 AM ---They headspace on the rim of the case, so trimming each one to the correct length is essential.


PhilK


--- End quote ---

Your cases stretch so as to need trimming?!?!?  I have not loaded much 9mm, but I have stuffed a crapload of 45 ACP......... never had a need for the Lee trimmer dealy I bought: all the cases are the same length, even the ones that have been fired so many times you can barely read the headstamp............

Chris Z:
I always trim my rifle brass, but have never trimmed a pistol case. I load mine over and over and over until they split or get lost. 9-357mag-40-45

JimP:
I have trimmed some of my heavier .357 loads........ probably not absolutely necessary as case headspaces on the rim, but for a uniform crimp, would case length not have to be uniform?

Randy:

--- Quote from: JimP on January 10, 2009, 07:27:37 PM ---I have trimmed some of my heavier .357 loads........ probably not absolutely necessary as case headspaces on the rim, but for a uniform crimp, would case length not have to be uniform?

--- End quote ---

Not so much as chamfering your Brass does.
But what do I know I clean primer pockets also.
1911 forum tore me up after I posted that.

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