SAMMI Headspace?

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Fat Albert
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Posts: 20
Joined: Thu Sep 29, 2016 2:20 pm
.204 Ruger Guns: none

SAMMI Headspace?

Post by Fat Albert »

Dose anyone out there have a copy of the SAMMI case and chamber drawings for the 204 R that can be read? The drawing on the SAMMI site looked like they were copied about 20 time and then posted. I need the headspace (max and min) lengths for the case and chamber, Thanks
MZ5
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Posts: 106
Joined: Sat Oct 13, 2007 2:57 pm
.204 Ruger Guns: Ruger M77 Hawkeye Predator
Location: Arizona, USA

Re: SAMMI Headspace?

Post by MZ5 »

Yeah, the SAAMI data sheet is really illegible, isn't it? Best thing is to look at CIP's drawing. Should be on this page:
http://www.cip-bobp.org/homologation/en ... _type_id=1
Or, go forward or backward in those pages until you see it.
Fat Albert
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Posts: 20
Joined: Thu Sep 29, 2016 2:20 pm
.204 Ruger Guns: none

Re: SAMMI Headspace?

Post by Fat Albert »

CIP drawing don't give Headspace. The closest they get is length from base to shoulder-start of neck. *****BRAIN FART*** I have the chamber numbers. I bought Todd Kindlers book on 20 cal cartridges and the drawing is in the back. Pacific Tool drawing shows 1.5612"min/1.5682"max @ .330" for the chamber.
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jpx2rk
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Joined: Sun Aug 14, 2016 5:25 pm
.204 Ruger Guns: Savage 12FV, R783/20P combo
Location: East TN

Re: SAMMI Headspace?

Post by jpx2rk »

The SAAMI specs I printed out are pretty clear/ledgible so:

Chamber:
1.5613 min
1.5713 max

Cartridge:
1.5645 - .0070

both measured at .330 (datum line)
Master Piddler ;)
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