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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
5-r rifling expectation
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<blockquote data-quote="brokenharley711" data-source="post: 369687" data-attributes="member: 21104"><p>talked to one of the tech guys at Krieger and he says the jury is still out on the change in muzzle velocity from the 5r. he said he expected it to go down with decreased bullet to barrel resistance. he said he would wait until they got feedback as they had only been making them for a little over a month.</p><p> </p><p>as to the article on increased MV, i can't remember where i read it but i'll try and find it. i believe the point they were making was the increased continuity of the jacket due to less deformation from rifling decreasrd drag. although for all i know the rifling marks could have provided a laminar boundary layer, much like golf ball dimples.</p></blockquote><p></p>
[QUOTE="brokenharley711, post: 369687, member: 21104"] talked to one of the tech guys at Krieger and he says the jury is still out on the change in muzzle velocity from the 5r. he said he expected it to go down with decreased bullet to barrel resistance. he said he would wait until they got feedback as they had only been making them for a little over a month. as to the article on increased MV, i can't remember where i read it but i'll try and find it. i believe the point they were making was the increased continuity of the jacket due to less deformation from rifling decreasrd drag. although for all i know the rifling marks could have provided a laminar boundary layer, much like golf ball dimples. [/QUOTE]
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5-r rifling expectation
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