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Forums10
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Jun 14th, 2026
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Joined: Jul 2008
Posts: 1,008
Sidelock
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Sidelock
Joined: Jul 2008
Posts: 1,008 |
I wouldn't buy a Skeets again. The .001 jump isn't critical at all, it's just something that bothers me when I use a micrometer.
The Skeets instability is not temp-related. It's construction related. However, they are accurate enough for shotgun bores and chokes.
You can get inexpensive ID standards for calibrating gauges on Ebay but they might be weird dimensions - that doesn't matter. So what if it's .607 as opposed to .600.
You can also get them at MSC or McMaster-Carr.
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Joined: Jun 2008
Posts: 5,696 Likes: 226
Sidelock
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Sidelock
Joined: Jun 2008
Posts: 5,696 Likes: 226 |
I do not believe anyone has mentioned the Bureau of Standards master gauge. It is improrant and bears discussion. For all the research that I have done, it has been in use for a very long time. It is available to most folks and quite handy. Of, course you all know it and that is your thumb. It is handy and mostly accurate. Think back, many of you have used this gauge. Why do you think that they call it "a rule of thumb" Thank you for your time and attention to the obvious.
Mike
USAF RET 1971-95 ![[Linked Image from jpgbox.com]](http://www.jpgbox.com/jpg/57865_80x60.jpg)
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Joined: Jul 2005
Posts: 7,066 Likes: 4
Sidelock
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Sidelock
Joined: Jul 2005
Posts: 7,066 Likes: 4 |
My thumb won't fit in the 0.600" calibration ring so I need a bore gauge for the small bores.
I am glad to be here.
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Joined: Jan 2002
Posts: 11,575 Likes: 182
Sidelock
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Sidelock
Joined: Jan 2002
Posts: 11,575 Likes: 182 |
Although we speak of the shrinking value of the dollar, its physical measurement has not changed: 6" long. A handy tool for measurement . . . although one you may not want to share with wives or girlfriends, for fear of "not measuring up".
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Joined: Jul 2008
Posts: 1,008
Sidelock
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Sidelock
Joined: Jul 2008
Posts: 1,008 |
For that you need a Peter Meter
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Joined: Feb 2006
Posts: 3,862 Likes: 124
Sidelock
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Sidelock
Joined: Feb 2006
Posts: 3,862 Likes: 124 |
I do not believe anyone has mentioned the Bureau of Standards master gauge. It is improrant and bears discussion. For all the research that I have done, it has been in use for a very long time. It is available to most folks and quite handy. Of, course you all know it and that is your thumb. It is handy and mostly accurate. Think back, many of you have used this gauge. Why do you think that they call it "a rule of thumb" Thank you for your time and attention to the obvious.
Mike That is one verson of it, the other is from the 1700's in England, that stated no man can beat his wife with a stick bigger around than his thumb.
David
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Joined: Apr 2002
Posts: 6,812
Sidelock
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Sidelock
Joined: Apr 2002
Posts: 6,812 |
I have not to this day met the woman who can tell you how many bore-size balls to the lb.
jack
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