What distance to zero red dot for 3-Gun?

[thegrandpoohbah]

I just mounted a Burris FastFire 3 onto my Walther Q5 Match just for fun. Thinking I might try shooting the first 3-Gun match of the season with it. What distance would be the best zero for such an application?

 

[Still alive]

There’s a lot of steel in 3G. I would say 10m is a good distance.