First of all I'm not stupid Im going to be going to North Carolina School of science & math in one year due to extremely advanced courses. Secondly we own probably 500 or so acres that is two moutains with no roads and I have never seen anyone there within a mile or so. Shooting a rifle there you have a much greater chance of killing someone, rifle bullets go for miles the farthest Ive shot an arrow was 300 or so yards. Yes the nock was metal and it says it adds 5 or so feet per second. I am pretty accurate and have been practicing everyday for a month. I am for sure I can kill a deer I just want to futher my bow, I just added a cheap stabilizer (cobra) that I bought from a friend for 3 bucks. It seems to help. I dont know but thats all I have to say.!.