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- Path: sparky!uunet!haven.umd.edu!mimsy!orioncmc.ca
- From: keith@orioncmc.ca (Keith de Solla)
- Newsgroups: rec.guns
- Subject: 9mm [RELOADING]
- Message-ID: <9301250334.AA24248@scorpio.ic.cmc.ca>
- Date: 25 Jan 93 13:59:47 GMT
- Sender: magnum@mimsy.umd.edu
- Organization: Canadian Microelectronics Corporation
- Lines: 33
- Approved: gun-control@cs.umd.edu
-
- How does one safely go about determining a safe load for an unlisted
- bullet? The more reloading I do, the more I see that it is far
- from an exact science.
-
- Here's the problem: My local bullet supplier makes 125gr 135gr and
- 142gr bullet (hard cast) for 9mm Luger. I currently use the 125gr
- with Bullseye & Blue Dot. I want to try the 135gr and 142gr bullets
- (for IPSC minor) with one of these powders. Of course, there are
- no loads listed for either of these non-standard bullet weights.
-
- If we take the Blue Dot powder, the published data gives:
-
- 125gr bullet - 7.5gr to 8.3gr
- 147gr bullet - 4.2gr to 5.5gr
-
- For Bullseye:
-
- 125gr bullet - 4.6gr to 5.0gr (Speer)
- - 4.1gr to 4.4gr (Hornady)
- 147gr bullet - no loads shown for Bullseye
-
- So what would be a safe starting point for a 135gr or 142gr bullet?
- Is there one? Apparently, data sheets supplied with some Lee
- equipment (powder thrower?) gives loads for 'ranges' of bullet
- weights, making this even less scientific. Would 10gr increase in
- bullet weight result in unsafe pressures if the same powder load
- is used?
- --
- -------------------------------------------------------------------
- | Keith P. de Solla, P.Eng | "Be sure brain is engaged before |
- | CMC | putting mouth in gear" |
- | keith@orion.ic.cmc.ca | |
-
-