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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 lapua Build advice sav 110/stevens 200
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<blockquote data-quote="geargrinder" data-source="post: 278516" data-attributes="member: 6705"><p>NFG, I believe you are the one that is not being open minded.</p><p></p><p>The thread that Rob posted contained very sound advice from the most prominent "Savage Expert".</p><p></p><p>Fred said.</p><p></p><p> "I get this question 15 times a week. The short answer is no, the Savage action was never engineered for cases that big. I have discussed this with several engineers and custom action builders, that all came to the same conclusion. A case of that size needs a .750" diameter bolt, and a 1-1/8" barrel shank, minimum.</p><p> I know from personal experience on a gun that I built for myself that after less than 100 rounds, it experienced lug set-back. There is not enough surface area on the bolt lugs for that kind of pressure, let alone enough to provide a cushion for over pressure.</p><p> There are several custom action makers that will build express actions for those class of cartridges. Probably the most reasonable is Stiller's Precision firearms. Sako made some in .338 Lapua, in a tactical rifle.</p><p> The .338 Lapua seems to intrigue alot of shooters that "must have one", but I would suggest before you jump in with both feet, find someone that has one and beg to shoot it first. You might change your mind about what fun is all about."</p><p></p><p>Why are you ignoring his advice?</p><p></p><p>I'll admit I am just an armchair gunsmith as well, but I'm fair with math. Since the RUM case heads are about 15% smaller by area of the Lapua, wouldn't you need to reduce the case pressure by 15% to maintain the same safe load on the lugs?</p></blockquote><p></p>
[QUOTE="geargrinder, post: 278516, member: 6705"] NFG, I believe you are the one that is not being open minded. The thread that Rob posted contained very sound advice from the most prominent "Savage Expert". Fred said. "I get this question 15 times a week. The short answer is no, the Savage action was never engineered for cases that big. I have discussed this with several engineers and custom action builders, that all came to the same conclusion. A case of that size needs a .750" diameter bolt, and a 1-1/8" barrel shank, minimum. I know from personal experience on a gun that I built for myself that after less than 100 rounds, it experienced lug set-back. There is not enough surface area on the bolt lugs for that kind of pressure, let alone enough to provide a cushion for over pressure. There are several custom action makers that will build express actions for those class of cartridges. Probably the most reasonable is Stiller's Precision firearms. Sako made some in .338 Lapua, in a tactical rifle. The .338 Lapua seems to intrigue alot of shooters that "must have one", but I would suggest before you jump in with both feet, find someone that has one and beg to shoot it first. You might change your mind about what fun is all about." Why are you ignoring his advice? I'll admit I am just an armchair gunsmith as well, but I'm fair with math. Since the RUM case heads are about 15% smaller by area of the Lapua, wouldn't you need to reduce the case pressure by 15% to maintain the same safe load on the lugs? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 lapua Build advice sav 110/stevens 200
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