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Author Topic: New cast bullet project  (Read 225 times)

Offline MichiganLouie

  • 14 Point Double Droptine
  • Join Date: Apr 2009
  • Posts: 7864
  • Location: Climax, MI
New cast bullet project
« on: March 24, 2017, 09:59:01 PM »
A cast bullet project that had been progressing slowly, has taken a jump forward, but I have to fit it in among my other ongoing projects. My 45LC 255 gr rifle loads got put on the back burner, awaiting better weather.  For quite a while I have been wanting to reload 32 acp ammo.  So I started by gathering up some brass, and dies.  Already have some powder, but with a max load of 2.5-2.8 grs of powder, a pound can go a looonnng way.  Bullets were a sticking point, until a friend from another forum gifted me with 100 cast bullets to test.  He said they work well through his 32 acp firearms.  These bullets come from a NOE mold, 77 gr, RF.  They drop from the mold at .314"-315" and are slightly heavier than the factory 71 gr fmj factory ammo I have, but should be fine.  I slugged my barrel, and it came out at  3105"-.3115"  I was a little surprised because the 32 acp is supposed to mike at .312"  I was hoping I could use the bullets as cast, without resizing.  The biggest issue is that the one dummy round I made, did not fully seat in the chamber, even though the bullet was seated a little deeper than normal.  Minimum coal for a 77 gr bullet is .955", while my dummy round is .920"  On a cartridge this size, seating depth is critical due to the volume of the case.  Seating too deep can greatly increase the pressure.  At this point, I need to decide if I need to buy some fmj's or try casting new bullets at a different temp, as this alone can have an effect on bullet diameter.  Resizing the bullets to .312"-313" is another option. 
Don't ask the Lord to guide your steps, unless you're willing to move your feet.
NRA Life Member.
Started reloading my own ammo to save money 35 yrs ago.  Should start saving money anytime now.

 

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