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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
"Inherent accuracy"...
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<blockquote data-quote="308 nate" data-source="post: 32729" data-attributes="member: 1920"><p>Hello,</p><p>I decided I'd stick my neck out and post my view.</p><p>O.k. lets say that all cases are perfect in their dimensions and all rifles are perfect. I would have to say I believe case construction does play a role in accuracy.For instance a .30-06 case has appox. .032 of side taper and a 17 degree shoulder and is 2.109 in lenghth to base of the neck.Now when your primer is ignigted behind all the powder in the case, it actually shoves the bullet and the unburnt powder into the barrel as it is burning the powder. More so in the .30-06 due to a funnel effect and lenghth verses width. as compared to a .300 WSM with .017 side taper, 35 degree shoulder and 1.805 in lenghth from base to neck.The more you disturb the powder before it is all burnt the more inconsistencies you will have.in theory My idea of an inherently accurate case would be to make a case that would be as long as it is wide and completly round in the combustion chamber and to have a riser from your primer pocket to the center of the combustion chamber so that it would ignite the powder in the center of the chamber and burn out evenly in all directions.Thus I would say that to an extent yes, there are more inherently accurate cases then others in comparison.</p><p>In comparison I would say the .308 is more inherently accurate then the .30-06 and the 6ppc is more inherently accurate then the .222 and the 6br is more inherently then the .243. and so on and so forth.In my mind shorter and fater and a sharper shouldered case makes a more inherently accurate case.</p><p>these are just my views.And I appologize for my lack of ability to explain my ideas.</p><p>308nate</p></blockquote><p></p>
[QUOTE="308 nate, post: 32729, member: 1920"] Hello, I decided I'd stick my neck out and post my view. O.k. lets say that all cases are perfect in their dimensions and all rifles are perfect. I would have to say I believe case construction does play a role in accuracy.For instance a .30-06 case has appox. .032 of side taper and a 17 degree shoulder and is 2.109 in lenghth to base of the neck.Now when your primer is ignigted behind all the powder in the case, it actually shoves the bullet and the unburnt powder into the barrel as it is burning the powder. More so in the .30-06 due to a funnel effect and lenghth verses width. as compared to a .300 WSM with .017 side taper, 35 degree shoulder and 1.805 in lenghth from base to neck.The more you disturb the powder before it is all burnt the more inconsistencies you will have.in theory My idea of an inherently accurate case would be to make a case that would be as long as it is wide and completly round in the combustion chamber and to have a riser from your primer pocket to the center of the combustion chamber so that it would ignite the powder in the center of the chamber and burn out evenly in all directions.Thus I would say that to an extent yes, there are more inherently accurate cases then others in comparison. In comparison I would say the .308 is more inherently accurate then the .30-06 and the 6ppc is more inherently accurate then the .222 and the 6br is more inherently then the .243. and so on and so forth.In my mind shorter and fater and a sharper shouldered case makes a more inherently accurate case. these are just my views.And I appologize for my lack of ability to explain my ideas. 308nate [/QUOTE]
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"Inherent accuracy"...
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