Oct 18th 2015 The FX Impact vs the FX Wildcat sound comparison. Also, some comparisons and observations between the two. In this video I finally go outside to do some sound comparison. Both rifles are shooting 25.4gr JSB's at ~835fps. Length and weight will be discussed as well as the action location. I had a little trouble with youtubes annotations feature so, if they'r off... that's why.