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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Hexagonal Boron Nitride
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<blockquote data-quote="Pdvdh" data-source="post: 1131426" data-attributes="member: 4191"><p>1) I'd be very surprised if the CFE additive has any affect on HBN, or vice versa; CFE would help reduce copper fouling just as it does if not using HBN coated bullets, IMO.</p><p>2) If you believe if barrel break-in, then you likely believe that the first bullets fired down the bore help to lap the bore and diminish/smooth any roughness left by the chamber reamer in the throat, or any minor imperfections down the rest of the bore. I would break the barrel in with uncoated bullets, with an uncoated bore for those first bullets fired during bore break-in. <strong>idaho elk hunter</strong> stated "Nitride" the barrel when almost new. Don't confuse nitride with HBN. Nitride treatment of the barrel / bore is also called melonite treatment, and it's a completely separate and unique treatment process in which the barrel is removed from the action [<em>after</em> the barrel break-in] and sent in for a specialized hot bath treatment process that surface hardens the exterior surfaces of the barrel and bore (~0.001" depth of surface hardness penetration), and reduces the coefficient of friction of the surface of the bore (makes the bore slippery). So idaho elk hunter was stating that if you "nitride" a barrel after barrel break-in, and then solely shoot HBN coated bullets, he thinks one may never have to clean their bores. That's was my interpretation. If I misunderstood, then hopefully idaho elk hunter will return and correct/clarify. </p><p></p><p>If you don't believe in barrel break-in, or that barrel break-in is beneficial to a new bore, then what I stated above may only be jibberish to those belonging to that camp of thought. I always complete a barrel break-in process on any new bore, so my recommendations (above) are based on my understandings and opinions on the benefits of barrel break-in.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 1131426, member: 4191"] 1) I'd be very surprised if the CFE additive has any affect on HBN, or vice versa; CFE would help reduce copper fouling just as it does if not using HBN coated bullets, IMO. 2) If you believe if barrel break-in, then you likely believe that the first bullets fired down the bore help to lap the bore and diminish/smooth any roughness left by the chamber reamer in the throat, or any minor imperfections down the rest of the bore. I would break the barrel in with uncoated bullets, with an uncoated bore for those first bullets fired during bore break-in. [B]idaho elk hunter[/B] stated "Nitride" the barrel when almost new. Don't confuse nitride with HBN. Nitride treatment of the barrel / bore is also called melonite treatment, and it's a completely separate and unique treatment process in which the barrel is removed from the action [[I]after[/I] the barrel break-in] and sent in for a specialized hot bath treatment process that surface hardens the exterior surfaces of the barrel and bore (~0.001" depth of surface hardness penetration), and reduces the coefficient of friction of the surface of the bore (makes the bore slippery). So idaho elk hunter was stating that if you "nitride" a barrel after barrel break-in, and then solely shoot HBN coated bullets, he thinks one may never have to clean their bores. That's was my interpretation. If I misunderstood, then hopefully idaho elk hunter will return and correct/clarify. If you don't believe in barrel break-in, or that barrel break-in is beneficial to a new bore, then what I stated above may only be jibberish to those belonging to that camp of thought. I always complete a barrel break-in process on any new bore, so my recommendations (above) are based on my understandings and opinions on the benefits of barrel break-in. [/QUOTE]
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