A friend of mine has just got one and has been experiencing hard extraction using RG , but is sweet with hand loads.
I'm looking forward to a magazines worth next range day :-)
KG
RG is of course milsurp, and thus 7.62. The AC SLR's are chambered for .308, NOT for 7.62! .308 RUAG or RWS works fine, that's what Gavin has been feeding his, with no problems.
EDIT - cross posted with Gavin as he was was posting.......!