I just bought a new bow. If i only have 3 peep sights what should i set my yards at.

10,20 and 30

I like 20, 30 and 40

for me the difference from real close to to 20 yards is not enough to waste a pin on.
It is really whatever you are comfortable with

It depends on how fast your bow is and how heavy your arrows are. When I started shooting axis arrows, instead of the heavy alluminum arrows, my flight path really flattened out. I noticed that my 15 yard pin was only about an inch or two low at the max at 25 yards where it used to be a lot more. I currently have a 15 and a 25 that are almost touching each other, and then a 35 and 45. I could probably get away with one for the 15-25 yard shot and then have a 35 and a 45 if I only had 3.

well i got a reflex. I did notice shooting in the field that my furst pin was good till about 25 yards. My second pin was awsome at 35 to 42 yards. So now i dont know what to do about the third sight

I won't take a shot at a deer past 40....for now.

I shoot a single vertical pin set for 20 yards. I am not comfortable shooting past that distance and making a killing shot.

20,30,40

20,30,40