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DarylS
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Reged: 10/08/05
Posts: 26992
Loc: Beautiful British Columbia, Ca...
Re: Case taper, extraction... and the Martini Cadet
      18/08/09 02:05 AM

Buddies .17Ackley Hornet in a thick side Martini, minimal taper case has no trouble running 3,940fps with 20gr., not a light load by any stroke, and cases kick completely out of the action upon extraction.

Another friend's .30/30AckImp also has no extraction problems from his Martini Cadet using loads that duplicate .300 Savage fctory ammo. It's the tapered cases that usually give grief in extraction, not the straight sided ones from what I've seen.

I've never had any extraction issues with straight-sided cases with heavy loads as there is little or very minimal bolt or block thrust, the barrel handling the pressure. The case then conracts roughly .001' away form the chamber walls and usually 'falls' from the chamber. Rough chambers don't work, anywhere.

--------------------
Daryl


"a gun without hammers is like a Spaniel without ears" King George V

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Subject Posted by Posted on
* Case taper, extraction... and the Martini Cadet TilleyMan 17/08/09 09:35 PM
. * * Re: Case taper, extraction... and the Martini Cadet Tatume   17/08/09 10:08 PM
. * * Re: Case taper, extraction... and the Martini Cadet Otto   17/08/09 11:49 PM
. * * Re: Case taper, extraction... and the Martini Cadet DarylS   18/08/09 02:05 AM
. * * Re: Case taper, extraction... and the Martini Cadet xausa   18/08/09 05:16 AM
. * * Re: Case taper, extraction... and the Martini Cadet DarylS   18/08/09 11:15 AM
. * * Re: Case taper, extraction... and the Martini Cadet TilleyMan   18/08/09 11:53 AM
. * * Re: Case taper, extraction... and the Martini Cadet DoubleD   18/08/09 01:46 PM
. * * Re: Case taper, extraction... and the Martini Cadet TilleyMan   20/08/09 09:54 AM
. * * Re: Case taper, extraction... and the Martini Cadet TilleyMan   31/08/09 09:16 PM
. * * Re: Case taper, extraction... and the Martini Cadet DoubleD   01/09/09 01:34 AM
. * * Re: Case taper, extraction... and the Martini Cadet TilleyMan   01/09/09 08:37 PM
. * * Re: Case taper, extraction... and the Martini Cadet DoubleD   01/09/09 11:37 PM

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