I shoot a 27″ draw 70# DXT. My arrows are 25.25″ 5575 Gold Tips Hunter XT 100 grain pt. 2″ vanes. My groups at 30 yards are around 4″. I’d like them to be around 2″. I am thinking about switching to 4″ vanes and increasing my arrow length about an inch. Do you think that will help? It might be that I can’t shoot as well as I used to. I paper tune my bow every year to shoot bullet holes
A spread in grouping can be several things and if the arrows tend to be one side(right or left) or the other of center then a walk back tuning might the fix it. My Preliminary inspection of your arrow spine of a .400 is okay so your grouping is not a spine problem. I wonder if you are having vane contact issues or torque issues. 2″ vanes are a higher profile vane compared to most 4″ vanes and can have contact problems with some rests.
Thanks for responding. The higher profile is something to look in to. I use a drop away rest (trophy ridge drop zone), so I don’t think that is it, but I’ll check on it. It seems like my groups got larger when I started shooting a shorter arrow. Also, I have never been able to get NAP thunderheads to fly right. Back in the day when I shot aluminum arrows, I killed alot of deer w/ thunderheads. I shoot slick tricks or grim reapers with my current set up.
One other thing is nock pinch. When I had my DXT I had that happen because of the string angle at full draw was fairly sharp. I had trouble with longer shots with mine and it was due nock pinch. I shoot a 28″ draw. Just one other thing to look at with your spread question.
With your “new” shorter arrows, did you also change nocks?
In addition to nock pinch, check to make sure your nocks fit properly on the serving… My previous bow was a 27″ DXT, and I was pulling my hair out trying to get better groups at longer ranges. Took it to my local pro shop and it took him about 15 seconds to tell me my nocks were too tight… re-served the string narrower, and in a very short time I was shooting 2″ groups at 40yds, and could get 3″ at 50 when I was doing my part. The DXT will shoot.
Snap an arrow on the string, and pull it off by hand…it should only take a couple pounds, and come off easily…if you have to fight it off there, change nocks or re-serve.
40 yards, the three just left are montec practic blades, the rest field points