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Long Range Hunting & Shooting
How much does the Point Of Impact shift with your switch barrel rifle when reinstalling a barrel?
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<blockquote data-quote="MagnumManiac" data-source="post: 1560311" data-attributes="member: 10755"><p>The only thing you may encounter with using a go-gauge is that the brass may not always fit when the nut isn't tightened exactly the same each time.</p><p></p><p>My early switch barrels were on Mauser '98 actions and I used witness marks and about 25 lbs/ft torque to tension the barrel. Early on, I discovered that the torque wasn't required as long as there was a precise fit. Mauser action barrels abutt twice, on the back of the 'C' behind the lugs, looking in as if the barrel was removed, and on the front of the receiver.</p><p>A trued Mauser dimension is always taken from the contact point behind the lugs, this is the trued section, so you can have either 1 true contact point, or 2 by turning a barrel shoulder that precisely matches the 2 measurements. The barrel can then only stop in the same spot each time.</p><p></p><p>This is the best way because the barrel stops precisely, the threads also have to be square and spot on too.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1560311, member: 10755"] The only thing you may encounter with using a go-gauge is that the brass may not always fit when the nut isn’t tightened exactly the same each time. My early switch barrels were on Mauser ‘98 actions and I used witness marks and about 25 lbs/ft torque to tension the barrel. Early on, I discovered that the torque wasn’t required as long as there was a precise fit. Mauser action barrels abutt twice, on the back of the ‘C’ behind the lugs, looking in as if the barrel was removed, and on the front of the receiver. A trued Mauser dimension is always taken from the contact point behind the lugs, this is the trued section, so you can have either 1 true contact point, or 2 by turning a barrel shoulder that precisely matches the 2 measurements. The barrel can then only stop in the same spot each time. This is the best way because the barrel stops precisely, the threads also have to be square and spot on too. Cheers. [/QUOTE]
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How much does the Point Of Impact shift with your switch barrel rifle when reinstalling a barrel?
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