Reply To: Why does the POI change with a Moderator on?

Forums Field Target Field Target Talk Why does the POI change with a Moderator on? Reply To: Why does the POI change with a Moderator on?

Link

Kim
Participant
Member

Most benchrest competitors don’t use a moderator, LDC, etc (I do….*).  As one experienced competitor pointed out, “it’s not helping you”.

Makes sense as the blast of air coming off the crown has to squeeze out the front of the moderator along with the pellet.  Without the moderator much of the blast exits laterally after leaving the crown.

As SD noted, consistent POI shift can be adjusted out with scope sighting.  Bigger dispersion, flyers, etc, cannot.  You need to test carefully both with and without the moderator.

*Needs to be quiet where I practice.  Plus the thing is glued on :(