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AR15.COM
6/3/2011 6:04:58 AM EDT
A buddy of mine has a CED M2 Chronograph and it keeps erroring out.

It doesn't seem to matter how it's set up, it errors out when other people down the line shoot, when we shoot through it, or all on it's own with no apparent cause...

Any tips?



ETA: And it has errored out shooting .32 ACP, 9x19mm, .38 Special, .357 Magnum, 7.62x54mmR, 7.92x57mm, and 5.56x45mm through it so all velocity ranges!