https://www.goldtip.com/Resources/Spine-Chart.aspx That is goldtips chart. I pull 70lbs at a 27in arrow im using 340 your length of arrow is weak at 340. You should be using 300's accprding to their chart. Good luck and happy shooting Sent from my SM-N920P using Bowhunting.com Forums mobile app
Exactly. You can't see your arrow wobble at that distance and it doesnt matter as much since you're so close. When I first started really shooting my bow 3 years ago, I could sit at 20 and hold groups all day, my bow would get a bullet through paper, but when I backed up to 60 yards, I was completely surprised I was even hitting the target. Distance is going to magnify any form or bow error you have! Go more in to tuning than just picking a bow and picking an arrow off the shelf. Experiment with what works for your particular bow and tune it to your form!
I'm the shooting the same dl/dw. 400's are underspined. I fought tuning issues tooth & toenail the first couple of years. I finally went to 340's and 350's (Carbon Express) and my accuracy improved dramatically! I have experienced the same problem with wobble at distance and had to experiment with FOC, arrow length, insert weight and tuning to get it cured. What I finally settled with is shooting 29-1/2" DL, cutting my arrows at 28-1/2" from end of the nock to the end of the shaft. Sent from my iPhone using Bowhunting.com Forums