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#7232366 - 12/27/12 Light Rifles = more consistently accurate in colder climates?  
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65BR Offline
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Post pertains to Kimbers, ULA/Nula, 'Mountain rifle contour' barrels, or similar.

Curious since we have folks using them in Alaska and the Northwest, vs other areas where temps often a good bit lower.

Knowing barrel heat makes fliers, just curious if lightweight barrels shoot more consistently in these colder areas?

I would expect first shot cold bore POI to be similar.





CMG 300 BP

#7232386 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: 65BR]  
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pahick Offline
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7th valley by the red oak grov...
I dont think it would matter. Im not going to heat either up enough in a typical hunting situation to notice a difference. But then again im not hunting prairie dogs and such where you shoot tons of ammo.

#7232629 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: 65BR]  
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rattler Offline
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Originally Posted by 65BR
Post pertains to Kimbers, ULA/Nula, 'Mountain rifle contour' barrels, or similar.

Curious since we have folks using them in Alaska and the Northwest, vs other areas where temps often a good bit lower.

Knowing barrel heat makes fliers, just curious if lightweight barrels shoot more consistently in these colder areas?

I would expect first shot cold bore POI to be similar.






as the other guy said, doesnt matter, if yah fire a normal string the barrel heats up just the same.....yeah it can cool down faster but it will get to just about the same temp if your not waiting much between shots....


A serious student of the "Armchair Safari" always looking for Africa/Asia hunting books
#7232737 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: 65BR]  
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BobinNH Offline
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I don't think so....light barrels can walk from heat but some walk less than others.Especially light barrels not properly stress relieved.

At least that's my observation.





The 280 Remington is overbore.

The 7 Rem Mag is over bore.
#7232804 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: BobinNH]  
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Klikitarik Offline
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It's kind of hard to say. I don't have one of the named specimens, my light barrelled rifle being a M700 Mountain. My thoughts are these: at cold temps I am content with having the snow, or most of it anyway, cleared from the scope lenses. Then I try to control my breathing, not to avoid shot-muffing so much as to prevent fogging the objective. (There's a follow-through issue here too.) Then, assuming multiple shots are needed, I am now shooting at a moving target, so any MOA shooting is more than likely to be a moot point anyway. But you can often see your misses as they often land and spray in snow, and correct from there if need be.


Sometimes, the air you 'let in'matters less than the air you 'let out'.
Alpha

#7232908 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: Klikitarik]  
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battue Offline
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This same thought was rambling around in my head and for sometime now my opinion has been for some reason I have found them more consistent in cold weather. Right or wrong, I'm not sure. So for what it's worth, 30F out this AM and this is the best overall group this young rifle has shot and the first time it has been shot with temps in the low 30's.

.243W Montana. First three shots out of a cold clean barrel went into an inch cloverleaf. Shot the .22-250 for two strings and then went back to the .243W.

Six shots total-third was the screw-up, but it looked good-load, shoot, load, shoot because things seemed to be going good. Still only an inch group, however Deer workup with the Barnes 80gr TTSX is done I'm thinking.



[Linked Image]

Last edited by battue; 12/27/12.

laissez les bons temps rouler
#7232913 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: Klikitarik]  
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65BR Offline
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Klik - no doubt, the FIRST shot is often the best for success, and if not made, no matter why, follow up shots are often on running game.

That said, there were a few times in my hunting career that I had to shoot more than once for various reasons, inc. deflected bullets, etc. As to snow, none here - Lol.

I was just curious if temperature affected various owners accuracy results, as some are good, some great, and some, not so much. I know this is assuming equally built guns of the same model, quality ammo, scope, conditions, and shooter skill.

Thanks guys.

#7232941 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: 65BR]  
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65BR Offline
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Battue, I'd say 'let the good times roll' wink You have a deer killer! TTSX is bad juju as you know. Good hunting! BTW, as you know, a smaller bore of the same OD barrel, means stiffer, and slower to heat up...so a 243 in the same contour POTENTIALLY is more prone to shoot w/more precision than say a 338.

#7233062 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: 65BR]  
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Forgot to add the Nula .22-250 could essentially care less what the ambient temp is. It just keeps pumping out .75in or better groups for the most part.


laissez les bons temps rouler
#7233452 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: battue]  
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Mule Deer Online content
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That's common with NULA's of all barrel weights.

In fact they normally shoot just as accurately with the barrel screaming hot as with it cold, and to the same point of impact as well. That's one reason I often use my NULA .30-06 as a scope-test rifle: I can keep shooting without letting the barrel cool down, getting results a LOT more quickly than if I had to cool the barrel down between shots or groups.

The same applies to the one Forbes Rifle I've tested as well.


John

"Gunwriters, as you know, aren't as informed as their readers are and if it wasn't for the readers, there would be no need for writers..."--Shrapnel, May 2015
Bravo

#7233486 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: 65BR]  
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A good barrel, regardless of weight, don't cause fliers when it heats up. I've had plenty that I could cook an egg on that shot just as well.


"When I was a kid I thought that quicksand was going to be a much bigger problem than it is."
#7234086 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: battue]  
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Originally Posted by battue
This same thought was rambling around in my head and for sometime now my opinion has been for some reason I have found them more consistent in cold weather. Right or wrong, I'm not sure. So for what it's worth, 30F out this AM and this is the best overall group this young rifle has shot and the first time it has been shot with temps in the low 30's.

.243W Montana. First three shots out of a cold clean barrel went into an inch cloverleaf. Shot the .22-250 for two strings and then went back to the .243W.

Six shots total-third was the screw-up, but it looked good-load, shoot, load, shoot because things seemed to be going good. Still only an inch group, however Deer workup with the Barnes 80gr TTSX is done I'm thinking.



[Linked Image]


Looks like you have it up and running!


I enjoy handguns and I really like shotguns,...but I love rifles!
#7234103 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: Steelhead]  
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Originally Posted by Steelhead
A good barrel, regardless of weight, don't cause fliers when it heats up. I've had plenty that I could cook an egg on that shot just as well.


As usual, Scott cuts right to it... wink

I agree.

Battue the 243 looks like it will work fine!




The 280 Remington is overbore.

The 7 Rem Mag is over bore.
#7234104 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: Steelhead]  
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scenarshooter Offline
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Originally Posted by Steelhead
A good barrel, regardless of weight, don't cause fliers when it heats up. I've had plenty that I could cook an egg on that shot just as well.


^^^^


Luck....is the residue of design...
[Linked Image]
#7234333 - 12/27/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: shortactionsmoker]  
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battue Offline
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Originally Posted by shortactionsmoker

Looks like you have it up and running!




I think it just had to become confident that it finally found a home were it was going to stay awhile. grin

Addition: No light rifle mojo incantations required other than making sure it was level in the bags and didn't jump around. Light hold on the forearm.

Last edited by battue; 12/27/12.

laissez les bons temps rouler
#7236265 - 12/28/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: battue]  
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65BR Offline
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So what makes a ULA/NULA not open up as they heat up?

What makes a rifle more accurate for 3 than 5 shot groups, if heat is not at play, what is?

#7236291 - 12/28/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: 65BR]  
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battue Offline
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I don't know. Only thing I can "guess" is that with his tight FLB, the barrel and stock are essentially one piece and are more of a stable unit than when the barrel is FF and can more easily move.

JB can perhaps give a more accurate answer.


laissez les bons temps rouler
#7236301 - 12/28/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: 65BR]  
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mathman Online content
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Originally Posted by 65BR
What makes a rifle more accurate for 3 than 5 shot groups, if heat is not at play, what is?


Statistics.

#7236344 - 12/28/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: battue]  
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Mule Deer Online content
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battue,

The tight, stiff forend is one factor, but as other people have stated a good barrel doesn't shoot less accurately or change POI when it's hot. Douglas makes good barrels, as do a number of other companies. Many factory barrels are also good, but some aren't.


John

"Gunwriters, as you know, aren't as informed as their readers are and if it wasn't for the readers, there would be no need for writers..."--Shrapnel, May 2015
#7236356 - 12/28/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: mathman]  
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Jordan Smith Online content
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Originally Posted by mathman
Originally Posted by 65BR
What makes a rifle more accurate for 3 than 5 shot groups, if heat is not at play, what is?


Statistics.


Thank you.


"Others are happy to hit the rock, or maybe the dark spot on the rock. I wanna head shoot the mite clinging to the pubes on the left nut of the fly that's sitting on the black spot on the rock."
#7236369 - 12/28/12 Re: Light Rifles = more consistently accurate in colder climates? [Re: mathman]  
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mathman has hit it on the nose.

Very few rifles are accurate enough to group 5 shots as tightly as 3 shots. Even 5-shot groups from benchrest rifles will "open up" a little over 3-shot groups, purely because of the laws of chance.

If you shoot enough shots in a group, the group's diameter will eventually include just about every shot. This is why I test prairie dog rifles with 10-shot groups. Even though the diameter of a 10-shot group doesn't impress many of today's shooters (3/4" is really good) it tells a hell of a lot more about a rifle's accuracy than a 3-shot or even 5-shot group, especially with a hot barrel. And hot barrels are the norm in PD shooting.

One reason 3-shot groups are so popular these days is the chance for a tiny group is so much greater with fewer shots. Then when we shoot one of those semi-accidental one-hole 3-shot groups with our factory rifle we can post it on the Campfire.

This doesn't mean some rifles won't consistently group 3 shots with all the bullet holes touching. Many will, even some factory rifles. I even own a Ruger No. 1 .25-06 that will do it with 75-grain Hornady V-Maxes. But if I shoot a 5-shot group with the same load it's bigger, even if I let the barrel cool down, due to statistical probability.


John

"Gunwriters, as you know, aren't as informed as their readers are and if it wasn't for the readers, there would be no need for writers..."--Shrapnel, May 2015
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