Hey guys,
I have noticed that, with my setup (a longer, heavy arrow and lightweight bow), I can use the same point-of-aim (about 20" low at the target) from 10 yds. to 25 yds. without changing it. For hunting, this might be a good aiming system for me since, within my normal shooting distances between 10 and 25 yds., I don't have to judge distance, only hold the tip about 20" below where I want to hit (about 10" below the belly line on an elk or at about 14" below the belly line of a deer). My gap (distance at the arrow from point of arrow to the point of impact) changes from about 2 1/2" at 10 yds. to 1" at 25 yds., so shooting gap means that I have to judge yardages accurately. This same POA impact is possible because, as I get farther from the target, the same 20" looks smaller and causes me to raise my arrow point so that the arrow has the same approximate point of impact. I have found that, closer than 10 yds. requires me to have a smaller POA (I think that's because my arrow is still rising to my line of sight). At 30 yds., my POA is about 12" and my point on distance is about 35 yds.
If you want to try this, put a marker low on a target face (or some may need to put a marker somewhere in front of the target), shoot with the arrow point on the marker from 10 yds. and measure how far up your average point of impact is on 3 shots. Then, move back to 15, 20, 25, 30, etc. using the same POA and see where your arrows hit. My question is: Is the same POA within 10-25 yds. unique to my setup or is it possible with other faster, lighter arrows? What have you guys found? Thanks.