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SAMMI Headspace?
Posted: Sat Oct 14, 2017 8:31 pm
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
Re: SAMMI Headspace?
Posted: Sat Oct 14, 2017 11:12 pm
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.
Re: SAMMI Headspace?
Posted: Sun Oct 15, 2017 12:11 am
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.
Re: SAMMI Headspace?
Posted: Sun Oct 15, 2017 5:19 am
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)