Lower draw weight, low and right POI shift

[100%TtId]

I'm doing some experimenting, so I turned the draw weight down on my Drenalin from 60 about 54 lbs. I got a group shift about 5 inches low and right at 40 yards. The group stayed tight, however, even with broadheads.

CS is set at 11/16 on a TrophyTaker. I expected the group to shift low, but the right shift is puzzling. I wonder if I'm underspined @60 lbs /65%LO with a 28 inch draw, 27.25 inch 400 FMJs with a 100gr head.

[gander250]

Try to shoot through paper... Check the tear chart and a good chance it will say too stiff spline or increase poundage... I was shooting a dxt at 55 pounds cut at 28" and was shooting 500 fmj. 400 were shooting off three inches at 30 yards changed arrow spline and was shooting perfect.

[rocky]

I'm doing some experimenting, so I turned the draw weight down on my Drenalin from 60 about 54 lbs. I got a group shift about 5 inches low and right at 40 yards. The group stayed tight, however, even with broadheads.

CS is set at 11/16 on a TrophyTaker. I expected the group to shift low, but the right shift is puzzling. I wonder if I'm underspined @60 lbs /65%LO with a 28 inch draw, 27.25 inch 400 FMJs with a 100gr head.

That arrow is good at 60 lbs.

[3children]

Everthing looks right, but the easy way to check is shoot a lighter tip. 75-85-90 gr tip will stiffen the arrow a bit and not cost much. Rocky might sell them each! I shoot the same setup and shoot a very stiff shaft and get perfect flight.

[Mike Javi Cooper]

More than likely you are torquing the grip more/less with the reduced poundage.. it should show up if you shoot thru paper or do a walkback tune..