While I don't have an Israeli Mauser in .308, I do have one out of South America so converted. I use USGI M-14 stripper clips with not a problem. I can't remember where I got them from. I have some 8 m/m ammo on order that is in 5 round clips, aftr it arrives I will try the .308 ammo in them. I think, however, that .308 ammo should work in 8m/m stripper clips as the head sizes are very close.
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Ne Conjuge Nobiscum
"If there be treachery, let there be jehad!"