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85lc
.400 member


Reged: 19/01/18
Posts: 1124
Loc: Georgia, USA
Re: I just bought a Miller & Val Greiss what is the caliber?
      16/02/25 10:55 AM

I understood that when you use a duplex charge, take the weight of nitro and triple it and delete that weight from the black powder charge to keep the pressue the same. That is, if you are loading a 450 BPE and the normal load is 120 gr of BP and you use a nitro priming load of 5 gr, then your black powder load should be 105 gr.

Now I think that is beaically correct for faster nitro powder like unique and perhaps the correction is less for slow powders like 3031.

To me, that makes sense, particulrly for weaker actions like double rifles and perhaps not as important for say a Sharps or Henry drop block.

What are your experiences?

--------------------
RB

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Subject Posted by Posted on
* I just bought a Miller & Val Greiss what is the caliber? fiatcrew 02/02/25 01:41 PM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? sharps4590   03/02/25 11:53 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? fiatcrew   08/02/25 02:17 PM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? fiatcrew   08/02/25 02:20 PM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? 85lc   08/02/25 03:28 PM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? DarylS   09/02/25 05:55 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? DarylS   03/02/25 01:13 PM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? sharps4590   09/02/25 07:05 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? fiatcrew   11/02/25 03:38 PM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? sharps4590   12/02/25 11:38 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? fiatcrew   14/02/25 01:09 PM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? DarylS   14/02/25 01:49 PM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? sharps4590   15/02/25 08:39 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? Marrakai   15/02/25 12:29 PM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? sharps4590   16/02/25 08:42 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? 85lc   16/02/25 10:55 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? sharps4590   17/02/25 01:04 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? 85lc   17/02/25 02:57 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? 3DogMike   17/02/25 04:30 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? eagle27   17/02/25 06:59 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? DarylS   17/02/25 07:35 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? 3DogMike   17/02/25 08:57 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? DarylS   17/02/25 09:04 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? sharps4590   18/02/25 02:31 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? Marrakai   12/02/25 04:52 PM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? fiatcrew   03/02/25 02:12 PM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? 85lc   04/02/25 05:21 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? DarylS   04/02/25 05:43 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? lancaster   08/02/25 01:48 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? CJF   08/02/25 08:13 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? 85lc   08/02/25 09:57 AM
. * * Re: I just bought a Miller & Val Greiss what is the caliber? Marrakai   08/02/25 10:37 AM

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