New to me bow

[Wild one]

Thanks for all the help. Pretty much blame the rest of the problems with operator error, the first 6 or 9 shot are good and then then they start to wander, rest for a couple of hours and the groups are back to being O.K. again.

Muscle fatigue and form is what it sounds like to me. If you shoot well with a fresh arm you are starting out right

Practice and trying your best to keep good form is the only way to fix it.