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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel Bedding blocks, Why not SS
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<blockquote data-quote="Brent" data-source="post: 27830" data-attributes="member: 99"><p>Jerry,</p><p></p><p>One thing I might point out is that the torque specs for a given screw/bolt size will stretch the bolt a given amount and this stretch is what keeps them from loosening from the claming force, so it's not a bad thing, only good, although it may not be as critical in some applications as in others.</p><p></p><p>I'm using a 10" aluminum block in the 30/338 Lapua Imp that's being done up now. It's being glued on vs. clamped on. It's being bedded on 4 or 6 pillars and the block acts as the recoil lug as well, the rear is flush with the reciever face with the action and barrel both freefloated.</p><p></p><p>The chamber is the hottest, and aluminum disapates heat a much, much faster rate than steel, so this is good reason to use it over steel IMHO. </p><p></p><p>Expansion ratios on cast iron cylinder blocks while using aluminum heads require some real serious considerations and preperation to retain gasket seal, not the case when using cast iron heads. This doesn't seem to be much an issue concerning barrel blocks, as many use them glued on or clamped with no problems I'm aware of. </p><p></p><p>Good luck. <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Brent, post: 27830, member: 99"] Jerry, One thing I might point out is that the torque specs for a given screw/bolt size will stretch the bolt a given amount and this stretch is what keeps them from loosening from the claming force, so it's not a bad thing, only good, although it may not be as critical in some applications as in others. I'm using a 10" aluminum block in the 30/338 Lapua Imp that's being done up now. It's being glued on vs. clamped on. It's being bedded on 4 or 6 pillars and the block acts as the recoil lug as well, the rear is flush with the reciever face with the action and barrel both freefloated. The chamber is the hottest, and aluminum disapates heat a much, much faster rate than steel, so this is good reason to use it over steel IMHO. Expansion ratios on cast iron cylinder blocks while using aluminum heads require some real serious considerations and preperation to retain gasket seal, not the case when using cast iron heads. This doesn't seem to be much an issue concerning barrel blocks, as many use them glued on or clamped with no problems I'm aware of. Good luck. [img]images/icons/smile.gif[/img] [/QUOTE]
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Barrel Bedding blocks, Why not SS
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