wow, nice 457! mine is a Pro Varmint with the 16.5in Bull threaded barrel. I put a EGW pic rail and a Vortex Viper 6-24x50 scope on it in EGW rings.Works great for my purposes, which is just shooting paper at 25 to 70yds... With my SilencerCo Sparrow it is silly quiet... I only have the one 5rd mag as extras are 50 bucks and NEVER in stock lol... ETA, I left my trigger stock, I don't want to mess with it and yeah it does have a bit of over travel but not bad... Shoots CCI SV very well!