Grouping question

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Grouping question

Post by Daywalker on Wed May 01, 2013 3:09 am

Got an interesting question. RemMan and myself have been discussing this and he has given me his theroy. He has the same problem. I think...


On my 6.5 Grendel, I get a real nice tight group at 100 yards. Here is the problem. I get the first 3 shots, touching. Almost, but not quite making one hole. The 4th shot will go to the left away a little bit and the 5th shot to the right.

I can shoot 5 shot groups all day long and get the exact same grouping.

What do you all think is going on?

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Re: Grouping question

Post by hawcer on Wed May 01, 2013 8:23 am

Strap it in a gun rest and see what it does. The shooter will be out of the equation that way.

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Re: Grouping question

Post by tripples on Wed May 01, 2013 10:39 am

Since its happening with all the groups, I wonder if its heat related. How does it act if you were to let the barrel cool between shots?

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Re: Grouping question

Post by fletch_medic on Wed May 01, 2013 12:07 pm

I second the heat theory. Next time wait an uncomfortably long time between shots. I never wait long enough because I feel awkward just sitting there, but when I force myself to do it, my groups get really tight.
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Re: Grouping question

Post by RichBirdHunter on Wed May 01, 2013 3:50 pm

Beer?
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Re: Grouping question

Post by IDAce on Wed May 01, 2013 5:51 pm

I think it could only be one of two variables. 1. Heat effecting harmonics or heat causing something to touch that does not when cold or 2. optics rattling around.

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Re: Grouping question

Post by RemMan700 on Thu May 09, 2013 10:37 am

I think it is mental anxiety. You are getting to the end of shooting your group and are stressing about it being perfect.
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Re: Grouping question

Post by george457d on Sat May 11, 2013 9:19 am

I'll put my nickle on heat ...
Pull the bolt and run a patch between every shot , and see if that 4th shot gets closer ...
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Re: Grouping question

Post by fletch_medic on Sat May 11, 2013 12:56 pm

If that doesn't work, just go old fashioned and pee on it. That will cool it down.
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Re: Grouping question

Post by RemMan700 on Wed May 15, 2013 12:06 pm

fletch_medic wrote:If that doesn't work, just go old fashioned and pee on it. That will cool it down.

Do you suggest on the barrel on down in the barrel? I am sure being careful as not to accidentally bump up against the burning hot barrel in the process right?
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Re: Grouping question

Post by george457d on Wed May 15, 2013 1:25 pm

RemMan700 wrote:
fletch_medic wrote:If that doesn't work, just go old fashioned and pee on it. That will cool it down.

Do you suggest on the barrel on down in the barrel? I am sure being careful as not to accidentally bump up against the burning hot barrel in the process right?

lol! I think I saw that in a movie ... No , wait a minute , they didn't have a firearm ... never-mind Troll
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Re: Grouping question

Post by Reload3006 on Wed May 15, 2013 1:52 pm

I have used that technique on the M60 and 81mm tubes LOL while it stinks it does work.
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Re: Grouping question

Post by Nicnac on Wed May 15, 2013 6:47 pm

george457d wrote:
RemMan700 wrote:
fletch_medic wrote:If that doesn't work, just go old fashioned and pee on it. That will cool it down.

Do you suggest on the barrel on down in the barrel? I am sure being careful as not to accidentally bump up against the burning hot barrel in the process right?

lol! I think I saw that in a movie ... No , wait a minute , they didn't have a firearm ... never-mind



Was you thinking about this movie??? http://www.youtube.com/watch?v=Uzae_SqbmDE
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Re: Grouping question

Post by fletch_medic on Thu May 16, 2013 1:51 am

Hmmm. Maybe a funnel inserted into the muzzle. That way you wouldn't get any surprises. affraid
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Re: Grouping question

Post by george457d on Sat May 18, 2013 11:22 am

Nicnac wrote:
george457d wrote:
RemMan700 wrote:
fletch_medic wrote:If that doesn't work, just go old fashioned and pee on it. That will cool it down.

Do you suggest on the barrel on down in the barrel? I am sure being careful as not to accidentally bump up against the burning hot barrel in the process right?

lol! I think I saw that in a movie ... No , wait a minute , they didn't have a firearm ... never-mind



Was you thinking about this movie??? http://www.youtube.com/watch?v=Uzae_SqbmDE
Red-Dawn (84) when the truck overheated cheers
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Re: Grouping question

Post by dartfreak75 on Wed Jun 12, 2013 10:20 pm

I think its a combo between heat and bore getting dirty all my guns do it my 3006 shoots a tight four shot group but the 5th will fly out about 3/4 inch
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Re: Grouping question

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