The Dutch 6.5 round is merely the .303 necked down to 6.5mm. So converting them to .303 was an easy task. I had one of these years back. Came out of FedOrd in Los Angeles. A trainwreck of a piece. I sent it back and got my $19.99 from them. No idea who kept them as I later heard they were junk, but that was FedOrd, for sure.