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"settling" back in after a cleaning
Discussions related to Guns and Firearms

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DallanC
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Joined: Jan 18, 2005
Posts: 3218
Location: Utah

PostPosted: Sun Sep 25, 2005 7:55 pm    Post subject: "settling" back in after a cleaning Reply with quote

How many rounds do you find it takes for your rifles to "settle back in" to high accuracy after a good cleaning?

In preparing for Wyoming Pronghorn this weekend, I cleaned both mine and my wifes .243's along with my 7STW.

The STW with premium factory ammo had its first shot high and right by 4", 2nd was low and left 2" then the next 4 went into .75".

My .243 with 100grn Nosler Partition handloads went first shot 2" high and left, next two 1" left, both shots touching, next 3 into .25" (wow!)

Wifes .243 never settled down after 12 rounds so i will re-clean it and we'll retest it tomorrow (it usually groups sub moa).

How many rounds do you find it takes for your rifles to "get back into the groove" after a good cleaning?


-DallanC
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Coyote_Hunter_
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Joined: Mar 05, 2005
Posts: 208
Location: Franktown, CO

PostPosted: Sun Sep 25, 2005 8:01 pm    Post subject: Re: "settling" back in after a cleaning Reply with quote

Was at the range today with my Ruger .257 Roberts. Ran a Bore Snae through it and it took 3 shots to settle down.

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JO422
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Joined: Sep 16, 2005
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PostPosted: Mon Sep 26, 2005 8:49 am    Post subject: Re: "settling" back in after a cleaning Reply with quote

It sounds like what you are experienceing is "Cold bore" vs. "warm bore" zero shift. Cold bore zero can be as much as 6 inches off from where a warm bore zero traditionally impacts. This is becasue the rifle barrel warms as you shoot it and this changes the harmonics/POI. Snipers have known about this for years and each sniper knows the cold bore zero as well as the warm bore zero of his rifle.

I have a .308 that only shifts impact by about .5 moa (higher) after the 1st 4 rounds. I also have a .223 that has a cold bore shot that is 3.5 MOA high for the 1st shot and it progressively goes lower to zero as I shoot the next 5 rounds. Both of these rifles are capable of under .5 MOA groups when I do my part. You can see how important it is to know your cold bore zero as well as subsequent shot zeros, especially for the long range hunter/marksman. Each barrel has its own personality.

As far as the .243 goes, it soinds like it might be time to remove copper from the bore if you haven't done this recently.
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DallanC
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Joined: Jan 18, 2005
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PostPosted: Mon Sep 26, 2005 9:02 am    Post subject: Re: "settling" back in after a cleaning Reply with quote

Welcome to the site JO422.


-DallanC
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515034s10ring
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Joined: Sep 08, 2005
Posts: 1153
Location: Working my way back up and around

PostPosted: Mon Sep 26, 2005 9:11 am    Post subject: Re: "settling" back in after a cleaning Reply with quote

I guess i'm a stickler when it comes to this because i clean it after every 3 to 5 shots. But then it also gets into temperature (and things of that nature) because i'm not in a hurry so i let my barrel cool (to shoot cold again) before another shot.

But if i were shooting a battery of rounds, one after the other, then i would have to switch to a different scope setting because my barrel will heat up, and is going to start shooting progressively higher (but in that event, i have never gone more than 15 rounds before a cleaning and letting things cool down) (except in my AR).
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515034s10ring
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Joined: Sep 08, 2005
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PostPosted: Mon Sep 26, 2005 9:13 am    Post subject: Re: "settling" back in after a cleaning Reply with quote

Yeah JO442 welcome (i'm new as well) Wave
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popgun
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Joined: Jan 26, 2005
Posts: 735
Location: Mitchell, GA, U.S.A. (2007 pop. 191)

PostPosted: Mon Sep 26, 2005 2:45 pm    Post subject: Re: "settling" back in after a cleaning Reply with quote

Ok, Fess up Dallen Very Happy
You had a bad case of apple pie shakes! Very Happy
Try it again and lets see what happens. Get your sugar fix first Laughing ROFL Viking Yuck

Hey New Guys! Welcome to the forums and feel free to jump in with both feet. We are all about fun and the shooting sport we all enjoy. We are well named "HuntingNuts". Wave Wave
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calsibley
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Joined: Jan 28, 2005
Posts: 317

PostPosted: Sun Oct 16, 2005 6:36 pm    Post subject: Re: "settling" back in after a cleaning Reply with quote

I usually fire a fouling shot into the ground somewhere down range before shooting for group. It'll warm up the barrel as well as get rid of any oil that might remain in the barrel. Most days it's cool enough in Canada that the barrel won't heat up until the 4th shot, maybe the 3rd., and even then it'll cool back down fairly quickly. Best wishes.

Cal - Montreal
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Blaine
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Joined: Feb 24, 2005
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Location: Maine

PostPosted: Sun Oct 16, 2005 7:26 pm    Post subject: Re: "settling" back in after a cleaning Reply with quote

My 270 needs only 1 fouling shot before settling down. The first shot is always about 3/4-1" from the main group. Then after about 3 shots (all cold barrel) it will start opening up a little at a time. For example shot 4 might be off by 1/2" and shot 5 will be off by 3/4 - 1". Again, all cold barrel shots.

My 308 Encore only needs 1 fouling shot, and then the next 5 or 6 will go into the same group before starting to open up. I have gotten into the habit now of completely cleaning the barrels of all fouling and then bringing a fouling round to shoot into the ground before I start shooting groups (or hunting).

Blaine

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SHOOTER458
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Joined: Nov 05, 2005
Posts: 27

PostPosted: Mon Nov 07, 2005 2:18 pm    Post subject: Re: "settling" back in after a cleaning Reply with quote

Try shooting 1 shot a day for 10 days on the same target (no Cleaning). The results can be interesting!
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squirrelbait
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Joined: Sep 23, 2005
Posts: 220
Location: Nottingham, NH

PostPosted: Mon Nov 07, 2005 2:58 pm    Post subject: Re: "settling" back in after a cleaning Reply with quote

Shooter458, that's like saying eat only "1" chip!!!!! Sad How do you do it?
I'm 15 minutes from the range but between work and work at home I just can't get there often enough! Crying or Very sad
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