I need some help!!!!
 

Sorry dont know if this is the best place but I am looking for some help. I am thinking of building a 25 wildcat and I am looking at the 25 stw or the 25-300 any and all help apreciated thanks in advance. Also if you have something else that works good let me know. I am wanting to push a 100 gr bullet between 3800 to 4000 fps out to 800 yards. Mainly for varmints thanks.