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Old March 13, 2012, 10:19 AM   #7
mehavey
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Join Date: June 17, 2010
Location: Virginia
Posts: 2,605
Quote:
five shot average was 2875 fps, with and ES of 71 and an SD of 27!
That tells me you have ignition problems.
Step up to a CCI-450 mag primer or even a CCI-41 (hotter still)

Second, I believe the Hodgdon Data web page (in print format) indicates 3,203fps from a 24" barrel. Figure ~25/30fps * 8" = 200/240fps slower.

You're not too far off from what I might expect from a carbine-length barrel.

Last edited by mehavey; March 13, 2012 at 10:27 AM.
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