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CptCurlAdministrator
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Reged: 01/05/04
Posts: 5275
Loc: Fincastle, Botetourt County, V...
Re: Alexander Henry .577 2 3/4" BPE
      28/04/08 02:48 AM

Nakihunter,

Yes, this is nitro-for-black loading. I am substituting IMR4198 with appropriate wads, for the original black powder charge. The object is to duplicate the exterior ballistics of the original load, thus achieving proper regulation, with the use of smokeless (nitro) powder.

Done properly, it is documented that the nitro-for-black loading results in substantially less internal pressure. Graeme Wright does not report pressure tests for the .577 2 3/4" BPE. However, his pressure tests on the .577 3" BPE demonstrated that he could duplicate the ballistics of the original nitro-for-black factory load (pressure of 10 tons) at only 7.8 tons pressure using Varget and 8.9 tons using H4198.

Curl

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YOUR DOUBLE RIFLE IS YOUR BEST FRIEND.



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Subject Posted by Posted on
* Alexander Henry .577 2 3/4" BPE CptCurlAdministrator 14/04/08 11:50 AM
. * * .577 2 3/4" BPE bonanza   25/03/09 06:12 AM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   25/03/09 01:10 PM
. * * Re: Alexander Henry .577 2 3/4" BPE bonanza   25/03/09 10:19 PM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   25/03/09 10:34 PM
. * * Re: Alexander Henry .577 2 3/4" BPE bonanza   26/03/09 06:55 AM
. * * Re: Alexander Henry .577 2 3/4" BPE CFWs   26/03/09 11:48 PM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   27/03/09 05:22 AM
. * * Re: Alexander Henry .577 2 3/4" BPE DarylS   10/12/14 03:42 AM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   10/12/14 12:54 PM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   27/02/18 01:26 PM
. * * Re: Alexander Henry .577 2 3/4" BPE JefferyDenmark   28/11/18 08:07 PM
. * * Re: Alexander Henry .577 2 3/4" BPE OahuKaneohe   04/12/18 02:48 PM
. * * Re: Alexander Henry .577 2 3/4" BPE rigbymauser   21/04/08 12:28 AM
. * * Re: Alexander Henry .577 2 3/4" BPE Marrakai   21/04/08 10:37 PM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   30/06/08 12:38 PM
. * * Re: Alexander Henry .577 2 3/4" BPE 400NitroExpress   09/07/08 03:40 PM
. * * Re: Alexander Henry .577 2 3/4" BPE Marrakai   01/07/08 09:00 AM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   22/04/08 11:34 AM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   27/04/08 03:15 AM
. * * Re: Alexander Henry .577 2 3/4" BPE Nakihunter   27/04/08 12:41 PM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   28/04/08 02:48 AM
. * * Re: Alexander Henry .577 2 3/4" BPE JabaliHunter   28/04/08 03:15 AM
. * * Re: Alexander Henry .577 2 3/4" BPE Oz   08/07/08 01:35 PM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   08/07/08 08:25 PM
. * * Re: Alexander Henry .577 2 3/4" BPE bigdog   30/04/08 11:59 PM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   28/04/08 02:37 AM
. * * Re: Alexander Henry .577 2 3/4" BPE Chasseur   09/07/08 07:01 PM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   26/11/08 11:31 PM
. * * Re: Alexander Henry .577 2 3/4" BPE DarylS   05/12/18 04:31 AM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   05/12/18 06:50 AM
. * * Re: Alexander Henry .577 2 3/4" BPE DarylS   05/12/18 07:32 AM
. * * Re: Alexander Henry .577 2 3/4" BPE tinker   27/11/08 04:13 AM
. * * Re: Alexander Henry .577 2 3/4" BPE peter   27/11/08 04:21 AM
. * * Re: Alexander Henry .577 2 3/4" BPE CptCurlAdministrator   27/11/08 01:13 PM
. * * Re: Alexander Henry .577 2 3/4" BPE Marrakai   27/11/08 01:39 PM
. * * Re: Alexander Henry .577 2 3/4" BPE tinker   27/04/08 10:34 AM
. * * Re: Alexander Henry .577 2 3/4" BPE Nakihunter   22/04/08 11:04 AM
. * * Re: Alexander Henry .577 2 3/4" BPE mehulkamdar   20/04/08 12:22 AM
. * * Re: Alexander Henry .577 2 3/4" BPE Anonymous   16/04/08 12:15 PM
. * * Re: Alexander Henry .577 2 3/4" BPE 4seventy   15/04/08 08:18 PM
. * * Re: Alexander Henry .577 2 3/4" BPE MacNaughton360   16/04/08 09:26 AM
. * * Re: Alexander Henry .577 2 3/4" BPE dnovo   16/04/08 09:53 AM
. * * Re: Alexander Henry .577 2 3/4" BPE gatsby   14/04/08 05:07 PM
. * * Re: Alexander Henry .577 2 3/4" BPE 450_366   14/04/08 06:55 PM
. * * Re: Alexander Henry .577 2 3/4" BPE peter   14/04/08 07:05 PM
. * * Re: Alexander Henry .577 2 3/4" BPE Nakihunter   14/04/08 12:05 PM
. * * Re: Alexander Henry .577 2 3/4" BPE JabaliHunter   14/04/08 12:13 PM
. * * Re: Alexander Henry .577 2 3/4" BPE Huvius   14/04/08 12:44 PM
. * * Re: Alexander Henry .577 2 3/4" BPE Marrakai   14/04/08 01:19 PM
. * * Re: Alexander Henry .577 2 3/4" BPE tinker   14/04/08 02:16 PM
. * * Re: Alexander Henry .577 2 3/4" BPE dale   14/04/08 02:53 PM

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