dm4 help please--inconsistent velocity - PbNation
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Old 08-05-2007, 05:35 AM #1
hyogen's Avatar
Join Date: Feb 2007
Location: Portland, OR
 has been a member for 10 years
dm4 help please--inconsistent velocity


I am shooting pretty well with my DM4. I don't get first shot drop off any more or anything like that.

When I chrono it, the velocities are pretty inconsistent. It'll be like 260, 265, 230, 245, 264, 235, 245, 250, 260,

etc. So it'll drop down to even 235 when I thought I had it set at 270fps...

So, what to do?

1). I heard it could be my LPR...should I turn it OUT or IN?

2). I also heard it could just be the imperfections of the ball.... hmm. I kinda underbore the balls. .285 barrel back. could this be it?

3). Has nothing to do with Dwell right?
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Old 08-05-2007, 07:27 AM #2
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Join Date: Jul 2007
Location: ---516---/Long Island,NY
well try this the website may be for the proto line of markers but both guns are pretty alike as they are the same company.
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