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MRFixIT Member


Joined: Dec 15, 2011 Posts: 52 Location: Newbrunswick
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Posted: Wed Feb 29, 2012 6:55 pm Post subject: I need a little advice |
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Ive been spending a couple of days a week at the range this winter. I seem to have a problem not being able to keep the same point of aim, at least thats what I thinks going on. I'm shooting 5 shot groups but they look more like 2 groups.
I'm assuming it's me and not the gun ( model 12 lrpv in 223)
I should also add wind was gusty to 10km and I was shooting 100meters. 75 gr BTHP Hornady
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TRBLSHTR Super Member


Joined: Mar 23, 2007 Posts: 1071 Location: Lower 48's-left coast(near portlandia)
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slimjim Super Member


Joined: May 16, 2009 Posts: 8317 Location: Fort Worth TX
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Posted: Wed Feb 29, 2012 8:28 pm Post subject: Re: I need a little advice |
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I'll take a wild guess. You are mixing brass from two different manufacturers. Make sure you are using all the same brass and fire again.
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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Elvis Super Member


Joined: Jul 27, 2008 Posts: 9359 Location: south island New Zealand
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Posted: Wed Feb 29, 2012 8:37 pm Post subject: Re: I need a little advice |
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are the 2 groups shot as 2 groups or do they just end up thataways? eg are the first 2 in one group and the other 3 shot next?? if so shoot a 10 shot group and see what happens your rifle may shoot a dirty barrel to a different poi to clean barrel. or warm vs cold.
_________________ You shot it You pluck it !
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MRFixIT Member


Joined: Dec 15, 2011 Posts: 52 Location: Newbrunswick
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Posted: Wed Feb 29, 2012 9:42 pm Post subject: Re: I need a little advice |
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slimjim wrote: |
I'll take a wild guess. You are mixing brass from two different manufacturers. Make sure you are using all the same brass and fire again. |
slimjim i'm using lapua brass on it's third firing. I wish it was something that easy
Elvis wrote: |
are the 2 groups shot as 2 groups or do they just end up thataways? eg are the first 2 in one group and the other 3 shot next?? if so shoot a 10 shot group and see what happens your rifle may shoot a dirty barrel to a different poi to clean barrel. or warm vs cold. |
Elvis I number the shots. I shot them as 2 - 5 shot group. Gun was warm I put 50 rounds through it temp was -5 C. I shoot 5 shots wait 5 minutes or so and shoot 5 more. Gun does not seem to need a fouling shot

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MRFixIT Member


Joined: Dec 15, 2011 Posts: 52 Location: Newbrunswick
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Vince Site Admin


Joined: May 25, 2005 Posts: 15959 Location: Brisbane AUSTRALIA
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Posted: Wed Feb 29, 2012 10:44 pm Post subject: Re: I need a little advice |
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I'm tending towards something you may be doing mate because even though you appear to have two different groups in each group firing, the numbered shots are saying otherwise. Looking at the distance between each individual shot shows that, with the exception of shot 2 to shot 3, they are all a similar distance apart. It's odd though that 2 - 3 are almost identical distance apart in each group (might be the ideal barrel temp for that load mate).
If none of the suggestions from the others fixes the problem, give some thought to getting someone else to fire a couple of groups for you, with your reloads, and maybe also theirs, from your rifle to see how they group. If nothing else it will eliminate the one nut that is nearly always loose on a rifle...the nut behind the butt.
Cheers, Vince
_________________ Cheers, Vince 
Illegitimi non carborundum
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Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God.
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chambered221 Super Member


Joined: Aug 17, 2007 Posts: 3455 Location: Lost for good !!!
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Posted: Thu Mar 01, 2012 12:08 am Post subject: Re: I need a little advice |
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There are a number of things that can cause this !!!
If it's wind as you suggest, you shouldn't be seeing any vertical. How do other groups look ?
Are you using any kind of wind flags to aid in your shooting....you should be if you want to consistently shoot .5 and smaller.
Scopes, barrels, bedding and the load itself can all cause what your describing.
How your gun is tracking on your rest or the rest itself can also be the fault.
It can be a long tedious job to figure it out but it can be done.
I suggest trying simple things first. Try a different rest or how it's configured, maybe a softer bag with less sand.
Try some factory ammo and see what happens or try a completely different type of re-load.
If none of that works try a different scope.
Sooner or later you'll figure it out
_________________ Ask as many people needed, sooner or later your question will be answered the way you want it answered !!!
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Elvis Super Member


Joined: Jul 27, 2008 Posts: 9359 Location: south island New Zealand
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Posted: Thu Mar 01, 2012 2:37 am Post subject: Re: I need a little advice |
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yip a box of factory ammo to try and see what it does is not a bad idea you will get some new brass too.
_________________ You shot it You pluck it !
Them who eats the most duck eats the most feathers! |
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pete4d Super Member


Joined: Nov 27, 2011 Posts: 957 Location: Dixie , Alabama , & Louisiana
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Grumulkin Super Member


Joined: Apr 16, 2007 Posts: 365 Location: Central Ohio
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ElyBoy Super Member


Joined: Apr 04, 2006 Posts: 1541 Location: Forest Lake Minnesota
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Posted: Thu Mar 01, 2012 7:38 pm Post subject: Re: I need a little advice |
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I'll toss this thought out to some of the guys who know more than me.
I wonder if it has to do with the barrel heating up after a couple of shots.
Eric
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MRFixIT Member


Joined: Dec 15, 2011 Posts: 52 Location: Newbrunswick
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Elvis Super Member


Joined: Jul 27, 2008 Posts: 9359 Location: south island New Zealand
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Posted: Fri Mar 02, 2012 3:54 am Post subject: Re: I need a little advice |
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try loading it single shot. I cant see how but maybe its bullets in the mag that is the difference???
_________________ You shot it You pluck it !
Them who eats the most duck eats the most feathers! |
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MRFixIT Member


Joined: Dec 15, 2011 Posts: 52 Location: Newbrunswick
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Posted: Fri Mar 02, 2012 7:12 am Post subject: Re: I need a little advice |
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Rifle is single shot Elvis
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