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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Real difference...in barrels..
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<blockquote data-quote="Mikecr" data-source="post: 194629" data-attributes="member: 1521"><p>For cold bore single shot ACCURACY(which should be what this site is about) contour makes absolutely no difference.</p><p>Just get a contour that will balance well in a carry rifle.</p><p> </p><p>The biggest factor here is whether the barrel maker actually knows how to make accurate barrels -in lighter contours. This comes down to controlling muzzle growth as part of their process. Most do not. They get hung up in the benchrest mindsets, and sales -like we do. BR barrels are easiest to make and are most likely to shoot well(for BR competition). So many, many barrel makers prefer only BR barrels, and have no accounting of muzzle growth. They don't even measure it.</p><p></p><p>I prefer cut rifled, especially with heavily turned barrels because I assume up front, that the barrel maker does not measure and control bore growth, and cut rifling produces least stress.</p><p>But the best(for light, accurate barrels) may actually be hammer forged. This because their bores shrink with contouring. These would not be worth a **** for BR shooting though, as many have found.</p><p></p><p>I guess what I'm saying is that contour itself is not a factor for accuracy. But's it's manufactoring may be.</p><p>See if you can get a barrelmaker to discuss his method of controlling bore growth with contouring. Ask him how he measures it.</p><p>I think you'll find that he generalizes it(blows it off), side steps into a brag of end to end consistancy as 'compared'(not measured) by an air gauge. Or he'll offer you a fine bull barrel, and a few boasts of winning BR history.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 194629, member: 1521"] For cold bore single shot ACCURACY(which should be what this site is about) contour makes absolutely no difference. Just get a contour that will balance well in a carry rifle. The biggest factor here is whether the barrel maker actually knows how to make accurate barrels -in lighter contours. This comes down to controlling muzzle growth as part of their process. Most do not. They get hung up in the benchrest mindsets, and sales -like we do. BR barrels are easiest to make and are most likely to shoot well(for BR competition). So many, many barrel makers prefer only BR barrels, and have no accounting of muzzle growth. They don't even measure it. I prefer cut rifled, especially with heavily turned barrels because I assume up front, that the barrel maker does not measure and control bore growth, and cut rifling produces least stress. But the best(for light, accurate barrels) may actually be hammer forged. This because their bores shrink with contouring. These would not be worth a **** for BR shooting though, as many have found. I guess what I'm saying is that contour itself is not a factor for accuracy. But's it's manufactoring may be. See if you can get a barrelmaker to discuss his method of controlling bore growth with contouring. Ask him how he measures it. I think you'll find that he generalizes it(blows it off), side steps into a brag of end to end consistancy as 'compared'(not measured) by an air gauge. Or he'll offer you a fine bull barrel, and a few boasts of winning BR history. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Real difference...in barrels..
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