Depend's also on what type of terrain wooded ,open field's,swamp's
swamp or dense wood's i recomend either a 20 gauge or 12 gauge deer slayer loaded with slug then buckshot and it will get the job done and are not that expensive if hunting more open area or not a dense wooded area a 243,7-08,or a good ole 30-30 winchester all 3 are excellent deer rifle's and are not pricey