While that can be done, it can cause problems with rotational velocity. More importantly, why would someone want to download velocity if test shots are already being taken at 100 and 300?

There are some options that help get a sense of max and min test ranges, for example, a 5.56 m test could do some shots at 3 meters with a 16" barrel and than some additional shots at 100 meters using a 10.5" barrel.