i was at tge local sporting goods store today and saw a used omega carbine z5 or z7 whatever they called it, with a camo thumbhole stock for only $79! after looking i found out why, the crown of the muzze has severe rust pitting. is there any chance it will shoot accurately enough to take deer at 100 yds with a pitted bore? i did not have a light on me to inspect tge rest of the bore.