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Bizaar~ Whats happening ???

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Unread 09-11-2010, 02:40 PM
Silver Member
Join Date: Jun 2010
Posts: 165
Bizaar~ Whats happening ???

I have been playing with my chrono today and I at a loss to understand the data I am getting.

I am grouping 3 shots groups in a 5p sized group over 100yds time and time again, yet the ES on the chrono is massive (70), whats happening.

If the groups were all over the shop I would understand the ES and sd being huge, but they arnt, so can anyone explain the results.

The chrono is a Prochrono >>>> Prochrono

Is the chrono busted ???
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Unread 09-11-2010, 02:51 PM
Platinum Member
Join Date: Nov 2008
Location: SW Montana
Posts: 5,806
Re: Bizaar~ Whats happening ???

I've had great 100yrd groups that had huge ES, not really uncommon in my experience, they are the loads that if you don't have a crony you won't know to tweek or eliminate them from your long range program. Looks great till you march them out long range, then the wheels fall of.
"Pain is weakness leaving your body"
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Unread 09-11-2010, 03:06 PM
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Join Date: Apr 2005
Location: Alaska
Posts: 4,895
Re: ProCroaky Bizaar~ Whats happening ???

Originally Posted by robbobsam View Post

The chrono is a Prochrono

Is the chrono busted ???
Quite often when I see chronograph users baffled by their data, they are using that brand of chronograph. It may not be busted. That may be as good as they get. I've never owned one of that brand and I don't want to be the sour-puss. But I have seen similar issues posted on this Forum more than once.

There have even been a few that have posted that the best shot they ever fired across their ProChrony was the one they sent through the unit, to put it out of its misery. Turned their ProCrony into a ProCroaky.
Which electronics do you use

Last edited by phorwath; 09-11-2010 at 03:32 PM.
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Unread 09-11-2010, 03:21 PM
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Join Date: Nov 2008
Location: Eastern Montana
Posts: 282
Re: Bizaar~ Whats happening ???


One of the most accurate loads at 100 yards in my wife's 270 typically gives ES close to 100 fps so I would venture a guess that your chony is OK.
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