exomax arrow question.

[bigfoothunts]

My exomax will group 1 inch or less at 30 yards w/ 125 grain field tips but can't even get 4 inch groups w/ 125grain muzzy's. shooting the firebolt carbon. what gives? Heavier arrows or broaheads?

[Boo]

Spin test the arrow/broadhead assembly. If it is out try one of these.
http://www.g5outdoors.com/#sec_asdtool

[vixenmaster]

Muggy's oh sorry muzzy's may need more forward weight using carbon arrows