Ammunition & Hand Loading > Cartridge and Shotshell reloading

Cast Bullets

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unfy:
I'm well aware of the higher pressures of the .40 :). 

As a side note, today I noted the difference between 6.0gr vs 6.5gr of Unique behind a 180gr jacketed bullet.  My Sig P229 definitely did not like 6.5gr (still within safety limits)... accuracy went all to hell  :angry9:.  Owell, recoil was unusable as well heh.

Don't have the reloading manual's on me at the moment, but I believe the Hornady book mentions some lead recipes for the .40.  (dunno about speers) I was gonna use those as a baseline, but if others had a suggestion that had reduced leading and seemed reasonable in relation to the book loads... so I could possibly reduce my trips back and forth from the range to clean out lead / adjust recipe / retry.

I've got a guy that is willing to talk to me about in detail on the subject... will probably call him tomorrow or Monday.

unfy:
Recently ordered two thousand 180gr truncated cone .40 bullets for $140ish shipped. Dunno what hardness off top of my head, but they're not real soft  Went to the range today with three batches of 20 rounds each with 0.5gr powder differences. Oh and a barrel snake for fouling :P

This is just my experience with my particular gun, these particular bullets, and COL. I wouldn't suggest others use these loads. As with any load over the net, take them with a grain of salt and refer to a published loading manual.

At 4.5 grains of unique with a Winchester SP primer - fouling was not too bad.

At 5.0 grains things were absolutely attrocious after just 3 rounds.

At 5.5 grains it was clean as whistle after 20. No leading at all.  :tool:

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