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Best short barreled 6.5 caliber??
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<blockquote data-quote="Alibiiv" data-source="post: 1612070" data-attributes="member: 69192"><p>I am reading your posts and trying to understand your logic or science? If I am understanding what you are proposing is that barrel length has nothing to do with velocity, is that what you are suggesting here? Currently I am building a .270 Ackley Improved with a 26 inch barrel. I went the extra length (2 INCHES) to get the maximum MV out of the .270 AI due to the smaller bore diameter. What I have found is that the smaller calibers .257, 6mm, 6.5, .270 like that longer barrel to burn the powder for maximum performance; especially the magnums in these calibers. From what I have read unless you are shooting these magnum cartridges out of a 24-26 inch barrel they are not worth chambering a rifle for them. If this is the case how does what you have written in your responses work here? Shouldn't more powder mean that you have to have more space/area for the powder to burn in before exiting the barrel, otherwise it leaves the barrel behind the bullet? Logically for me if more powder means more velocity, it ought to have a place to burn in, without that space the powder leaves the barrel unburned. Isn't this the juncture where more powder is no longer efficient in a particular caliber and overbore applies? Where do you reach the point of diminished return? If what you are suggesting to be true, what would prevent necking down a 50BMG to .270 caliber and get 5000fps?</p></blockquote><p></p>
[QUOTE="Alibiiv, post: 1612070, member: 69192"] I am reading your posts and trying to understand your logic or science? If I am understanding what you are proposing is that barrel length has nothing to do with velocity, is that what you are suggesting here? Currently I am building a .270 Ackley Improved with a 26 inch barrel. I went the extra length (2 INCHES) to get the maximum MV out of the .270 AI due to the smaller bore diameter. What I have found is that the smaller calibers .257, 6mm, 6.5, .270 like that longer barrel to burn the powder for maximum performance; especially the magnums in these calibers. From what I have read unless you are shooting these magnum cartridges out of a 24-26 inch barrel they are not worth chambering a rifle for them. If this is the case how does what you have written in your responses work here? Shouldn't more powder mean that you have to have more space/area for the powder to burn in before exiting the barrel, otherwise it leaves the barrel behind the bullet? Logically for me if more powder means more velocity, it ought to have a place to burn in, without that space the powder leaves the barrel unburned. Isn't this the juncture where more powder is no longer efficient in a particular caliber and overbore applies? Where do you reach the point of diminished return? If what you are suggesting to be true, what would prevent necking down a 50BMG to .270 caliber and get 5000fps? [/QUOTE]
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Best short barreled 6.5 caliber??
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