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Old March 23rd, 2008, 02:56 AM   #11
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Anything is possible. Considering that most semi autos wont shoot a 1/2 group with a scope...and considering that the width of the iron sight covers most of the paper at 100 yards...I would say that that is some mighty fine shooting.

Two .30 caliber bullets side by side will measure 615 thousanths. Putting 2 or 3 into a half inch group with a scope is exellent. Doing it with iron sights is dang near a miracle.

That man needs to buy a lottery ticket.
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Old March 23rd, 2008, 03:03 AM   #12
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Originally Posted by SIXTO View Post
Well, it is gun porn guys... a 12" can be 1/2" or 1/2" can be 12" if thats what he wants.


After a little airbrushing and photoshop, one can have whatever their dreams desire.
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Old March 23rd, 2008, 03:13 AM   #13
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Quote:
Originally Posted by aepilotjim View Post
I got her sighted in with 1/2 in. groups from prone unsupported at 100 yards.
Nice grouping.

If you're game, then take a number of photos the next time you fully strip it. I, for one, would love to see what you had done and a write-up of the journey you took. It's always interesting to see the path that someone's taken, on a labor of love.
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Old March 23rd, 2008, 04:27 AM   #14
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Its not impossible, and I have seen shooters do it before under the conditions he specified.

However, we may have some differing interpretations of what is a 1/2" grouping.

I know my interpretation is the grouping is no more than 1/2"diameter which would put the bullets into a clover leaf pattern. Also, a 1/2" group does not count if you fired 10 rounds and two of the bullets happened to hit the same hole with the other 8 forming a 10" - 12" group. That would be a 10"-12" group.

My rule of thumb for claiming a group measurement is 3 rounds fired on the same target. Take that diameter and you have your measurement. If the OP here is shooting a 1/2" group, then that means he is consistantly shooting 3 bullets into an area the size of a penny at 100 yds. It is not impossible, but the people I have seen do it are world class shooters and have probably forgotten more about shooting then I will learn in a lifetime.

Standard measurment is 5 rounds within 1/2 inch/MOA.


I've seen SWAT snipers shoot up to 20 rounds. They then take the smallest diameter group and claim it as a 1/2 MOA group at 100 meters...............

My 15 year old son can do that too. But he can't cold bore the shot into a dime at 100 meters, nor would he claim too. Nor can any of the SWAT marksman in my area either.
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Old March 23rd, 2008, 04:37 AM   #15
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Standard measurment is 5 rounds within 1/2 inch/MOA.


I've seen SWAT snipers shoot up to 20 rounds. They then take the smallest diameter group and claim it as a 1/2 MOA group at 100 meters...............

My 15 year old son can do that too. But he can't cold bore the shot into a dime at 100 meters, nor would he claim too. Nor can any of the SWAT marksman in my area either.
Like I said, my rule of thumb. Don't know why I ended up with 3 over the years. I guess I always knew that you couldn't establish a group with less than 3, and it never seemed to make sense to use an extra two rounds when 3 told me the information I needed for making a sight adjustment.

Sounds like your SWAT marksman need some additional training.
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Old March 23rd, 2008, 06:03 AM   #16
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I think that's a nice rifle and personally with my eyesight I need a scope to put em anywhere near that close with a bipod.I shoot 1/4" 1 shot groups all day long and sometimes my groups touch
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Old March 23rd, 2008, 06:32 AM   #17
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After an embarrassing round of moving the sights the wrong way,
Don't ya just hate it when that happens? LOL

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I shoot 1/4" 1 shot groups all day long and sometimes my groups touch
Well now---we all know that's impossible----1/4" and .30 caliber? Not. LOL!
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Old March 23rd, 2008, 12:13 PM   #18
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Well now---we all know that's impossible----1/4" and .30 caliber? Not. LOL!
Depends on the measurement: to the edges, or center-to-center.
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Old March 23rd, 2008, 01:16 PM   #19
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Well, I have have ya beat! with my Springfield 1911, at 100 yards, I can do a 1 shot groups that measure less than 1/2 inch, and that is standing, unsupported weak hand only!
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Old March 23rd, 2008, 04:08 PM   #20
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I think the standard measurement is take the largest measurement possible, say, from the left edge of the left-most bullethole to the right edge of the right-most bullethole, then subtract the diameter of the bullet to get center-to-center. My personal best 3-shot group was from my 20" bull-barrel AR-15 with a 20x scope on it, and I measure it as .214". That would be a group of .438" at its largest point, minus the .224" diameter of the bullets.

But I sure kept that target!

Last edited by Mo; March 23rd, 2008 at 04:10 PM. Reason: spelling
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