Bob my friend from Sydney went to Safari firearms yesterday to pick up some stuff & looked at the Marlin 35 REM for me, they want $1900 for it with a tasco scope, & $1600 with out scope i think its a $900 rifle at the most thank you for the lead but i will not pay that much.
Jim I have nos experience with that cartridge but can tell you CFE223 burn rate is between varget and H4350 so if the round uses either of these powders are used in the round you may be able to use CFE223.
Sorry I can't be of any Moe help mate.
Bob