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Long Range Hunting & Shooting
Nosler J4 Match Bullet on Deer
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<blockquote data-quote="elkaholic" data-source="post: 880889" data-attributes="member: 13833"><p>I just posted on another thread concerning matchkings but I will add my two cents here. The reason you got an exit on the first shot and not on the others is because you didn't have sufficint velocity to cause the bullet to expand. (this is typical of any expanding bullet) Second, unless matchking bullets have a much thicker jacket than the jackets that they sell me to manufacture my own bullets, they are not thicker, but thinner than most. example: a .308" 1.15" sierra matchking jacket has a nose thickness of .012" while a J4 (Berger is more like .014"). The matchking has a tangent ogive which does not allow expansion to occur as easily as a secant (VLD) because of the angle of entry. Tangents exert more pressure in and secant more out. All else equal (jacket thickness, caliber, meplat diameter) a secant will expand better everytime. That is why Bergers expand better than Matchkings even though both are target type bullets. Hope this helps.......Rich</p><p></p><p>p.s. This isn't speculation, I have tested dozens of sierra, J4, Corbins, etc., both factory bullets and my own, and the above is consistent with what I have found.</p></blockquote><p></p>
[QUOTE="elkaholic, post: 880889, member: 13833"] I just posted on another thread concerning matchkings but I will add my two cents here. The reason you got an exit on the first shot and not on the others is because you didn't have sufficint velocity to cause the bullet to expand. (this is typical of any expanding bullet) Second, unless matchking bullets have a much thicker jacket than the jackets that they sell me to manufacture my own bullets, they are not thicker, but thinner than most. example: a .308" 1.15" sierra matchking jacket has a nose thickness of .012" while a J4 (Berger is more like .014"). The matchking has a tangent ogive which does not allow expansion to occur as easily as a secant (VLD) because of the angle of entry. Tangents exert more pressure in and secant more out. All else equal (jacket thickness, caliber, meplat diameter) a secant will expand better everytime. That is why Bergers expand better than Matchkings even though both are target type bullets. Hope this helps.......Rich p.s. This isn't speculation, I have tested dozens of sierra, J4, Corbins, etc., both factory bullets and my own, and the above is consistent with what I have found. [/QUOTE]
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Nosler J4 Match Bullet on Deer
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