Only extra lean mince is syn free I'm afraid. But as some people find it difficult to find and it tends to be more expensive some people are content to use lean mince and drain of any exces fat before using it. I've also heard that you can cook it and then rinse it in boiling water to remove the fat.
i buy ordinary lean beef and lamb mince and fry it gently first them seive it and sit it on some kitchen paper for a few minute,you'd be surprised how much fat comes out of even the lean stuff.
I'm afraid the extra lean just costs more
We can't get the extra lean mince over here, the closest we get is 12% fat which is obviously quite high. I use an old Rosemary Connelly tip and boil it first then drain and rinse it before adding it to my bolognese/chilli recipe. I don't know what it would work out to syn-wise but it doesn't seem to do me any harm.