Why nock high

American Shoot. Robin the Hood said:. Thanks for everyones thoughts But I have, utterly coincidentally hit upon the reason and the cure today. I was calibrating my stringwalk crawl at 5m and noticed the nock was above my eyeline. So it got me wondering some more and I decided to tie on a second nock point. A bare shaft test had the arrow in the ground well short of the butt at 15m. What was happening I think is that the nock, on release, was pushed down someway below the nock.

Someware in my memory i have sen video of thus phenomonen. The addition of the second nock point prevents this. I am nwo tuned at a reasonable nock height and subjectively a decent grouping seems very much easier to achieve. Problem solved. Thanks if your thought everyone For me, mystery solved If the nocking point is considerably high or low, the arrow will look a bit like this when it comes out of the bow if viewed from the side:.

If the nock point is at the low end near 0 mm , then the back of the arrow will be fairly close to the shelf of the bow and the fletches may hit it in passing. If this happens in the same way every time, then that can be perfectly consistent even if it does cause some wear to the fletch thats being repeatedly deformed. If it only occasionally hits when the archer flubs their release then the arrow would be expected to be deflected somewhat.

During the time when the arrow is in contact with the arrow rest, which is only the first few milliseconds of movement, the arrow angle will be changing significantly as the nock end gets closer to the bow.

This could press the arrow shaft into the arrow rest, making it more likely to break over time. I decided to take a series of videos to see how changing the nocking point affected the amount the shaft moved up and down while it was still in contact with the string, and how much the fletches touched the bow. This is a pretty standard procedure. The idea is that when the path that the tail of the arrow follows is above or below the path that the point follows, the tail experiences more drag.

If the tail has fletches on it, then it will rotate so that the tail is following the point after a few meters. If the tail has no fletches, it will experience less drag and will rotate much more gradually. So if the two arrows land in the same place, that means that the arrows were flying with the tail following the point. Likewise, changing the height of the grip and the position of the pressure point on the grip affects the relative pull of the top and bottom limbs on the arrow and changes the arrow flight.

So there is nothing special about my current preferred nocking point height other than it works for me. At 70 m, the nocking point height that gives bare and fletched arrows in the same group is several mm higher than the one at m.

Firstly, the nocking point height can be defined in several ways depending on whether someone has one or two nocking points, and whether they mean the top or bottom of the top or bottom nocking point, or the middle of the arrow nock. Is it worth attempting to make adjustments to the cams? If so, which adjustments do I start with? Is there a difference in diameter in any of these shafts? If I'm reading correctly your getting a spine with to shoot, and a spine with ish to bullet hole.

However it seems to be a nocking point or cam timing issue, not a spine issue. How far do these arrows extend past the end of your rest? Billy Goat said:. I was told by a long time pro archer, after screwing around with something on my bow and being baffled at what the hell was going on, "changing one thing, changes everything.

When we are looking for the most out of a bow, it's the very small details that screws us up. Swampcruiser Senior Member. Joined Mar 11, Messages Location Michigan. The outside diameter is larger on that. If the shop tuned with standard shafts and now your trying micro's that wont work. The Defiants were notoriously tough to tune and liked nock low situations.

These can also have issues with TT Smackdowns and spring tension on the blade if that's what your running. X-impact is a. Fmj 5mm spine is. So by shooting the vap arrows you are essentially raising your nocking point slightly.

RCress said:. The shaft is an fmj 5mm. The are victory VAPe that came in my test kit from valkyrie. The spine shaft is a x impact I got from my pro shop. All shafts are the same length with about 1. Will give that a shot! You could save yourself a lot of trouble by simply investing in a string and arrow level.

Once your bow is level you can move your rest until the arrow is dead level with the string. That is a good starting point. Thank you for all the tips. Since heavier brasses make the arrows flight slower, they can become a great disadvantage for some types of archers who rely on speed. Tied nocking point is another form of a nocking point that you would often see in the bows of many Olympic archers. They can be served with a piece of thread or dental floss; both will work well.

However, tie-on nocking point is harder to set up, you need to manually tie the nocking point, unlike brass nocking point where you can just pinch the brass with pliers.

Finding a nocking point is best done with a bare shaft to get the most precise location. A bare shaft is an unfletched arrow. If you try to find the nocking point using a fletched arrow, you will not yield the most accurate location for even a poorly spined arrow will fly well with fletching. Even though a fletched arrow may appear to fly well but the arrow will not travel as fast as it could.

Furthermore, any mistakes that you make when releasing the arrow will be amplified many times.