The bullet and load are more than enough and should do the job. Remember, shooting is only part of the hunt. Sometimes you have to track an animal. And sometimes a long way. Focus on shot placement and track slowly but surely. When tracking, try and stay to one side of the track so you don't disturb the sign.
Case in point: Last week my friend arrowed a buck late in the day and called me for some help. We went out the next morning and tracked that deer for about 6 hours total. Initially the deer bleed good then just a single drop here and there about every 30 yds. The last drop about 70 yds from the previous one. We went all the way back to the start and he got back in his stand and I stood where the buck was standing. After very careful exmination we discovered his broadhead nicked a branch and on hands and knees found a small tuff of grizzled hair. From this bit of information we surmized that the twig deflected the arrow enough to cause a superficial wound very low just nicking the chest and shaving him a bit.