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?

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fe7565
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“nvelkhunter”Take a look at danhor7’s video. He notes a 1% change in fps between with and without.
http://airgunnation.dev/topic/home-made-moderator/page/2/

 


The velocity increase should be attributed to the moderator acting as the extension of the barrel thus allowing the pellet to speed up longer inside while the air is propelling it. But, that does not explain POI shift left or right.  The POI shift is very noticeable and inconsistent for my Daystate with a moderator on. I have two different moderators. I suspect that because my MVT has a built-in chrono tube and the passages inside the air stripper act like “crowns” with uneven exit orifices. May remove the shroud and chrono to see how it does with a bare barrel.