Measuring groups
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Old 10-24-2009, 09:33 PM   #1
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Default Measuring groups

When measuring groups, do you measure from the center of the bullet entry hole to the center of the other (of course, the furthest from it) or from the outside edge of the entry hole to the outside edge of the other?


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Old 10-24-2009, 11:16 PM   #2
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If you're lazy like me....OnTarget Software

or

Here is another link to methodology http://riflestocks.tripod.com/calculate.html


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Old 10-24-2009, 11:20 PM   #3
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Quote:
Originally Posted by dunerunner View Post
If you're lazy like me....OnTarget Software

or

Here is another link to methodology Calculating Rifle Precision
That doesn't mean you're lazy....I'm lazy for just wanting to use a ruler! Cool software.
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Old 10-24-2009, 11:55 PM   #4
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Measuring center to center is fine for casual target shooting. For any serious competition, measure from the outer-most edge of the bullet smudge to the outer-most edge of the opposite bullet smudge, then subtract the diameter of the bullet. This will give you your group size. There are also some measuring devises that can be used...Hope this helps..

Jim...........................
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Old 10-25-2009, 12:17 AM   #5
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Quote:
Originally Posted by masterPsmith View Post
Measuring center to center is fine for casual target shooting. For any serious competition, measure from the outer-most edge of the bullet smudge to the outer-most edge of the opposite bullet smudge, then subtract the diameter of the bullet. This will give you your group size. There are also some measuring devises that can be used...Hope this helps..

Jim...........................
It does help....thanks!
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Old 10-25-2009, 04:33 AM   #6
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I generally just try to hit the paper. If there's at least three on the paper, it's a group.

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Old 10-25-2009, 05:18 AM   #7
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Quote:
Originally Posted by masterPsmith View Post
There are also some measuring devises that can be used...
One example:
- Sinclair Group Measuring Caliper Attachment (22, 6, 30cal)
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Old 10-25-2009, 02:19 PM   #8
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I generally just try to hit the paper. If there's at least three on the paper, it's a group.

I doubt that!


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