Last year I was shooting 550gr with about 21.5% foc and they served me well. Shot two buck, both of which hit humorous bones, one near side and one off side, and both penetrated with one completely severing the offside. One buck went 48 yards from the tree and the other went 100 yards and died. The first buck, offside humorous buck, I actually got two arrows in. The first was at 20 yards and he ran to 30, stopped and looked around which was when I put a second in him that hit the offside leg. The doe I shot was a bad hit but she didn’t know what happened, I backed out and she was about 60 yards in her bed the next day. All in all very pleased. This year I have a new bow and I’m still tinkering with arrow set ups. Right now I have two arrows, one 600gr at 21% foc and the other 550gr at 19% foc. Both seem to fly well but I’m still tinkering. I was surprised today to see that I had the same poi at 20 and 30 yards within an inch so I’m leaning towards the 600gr arrow.
with my trad set up I’m still tinkering, I have a 550gr arrow that’s flying well at the moment with 19.5% foc but may bump that up in weight but will likely require a little more spine. I’ve found that cutting an 1/8th an inch off at a time can make a difference with a trad tune. I’ll attach a clip from dr Ashby that shows his tune and explains his fletchings which I saw people discussing earlier. It’s basically the same way I’ve been tuning trad arrows.