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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
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<blockquote data-quote="Bart B" data-source="post: 670442" data-attributes="member: 5302"><p>Well, most scopes will have their reticules wiggle a bit when the rifle's dry fired. Consider the following.</p><p></p><p>The optical tube that's moved by the adjustments is spring loaded at one end pressing it against the adjustment flats. That tube has weight. Snapping the firing pin sends shock waves through all the parts of the barreled action as well as anything attached to it. The scope's attached. So, some of those shock waves impart energy to that optical tube. And that causes it to bounce off the adjustment flats a tiny bit. Scopes with stronger springs will have less observed jump.</p><p></p><p>The lens group that has its mechanics move to change power in zoom models can also jump a bit from dry firing shock. That'll make the reticule appear to jump, too.</p></blockquote><p></p>
[QUOTE="Bart B, post: 670442, member: 5302"] Well, most scopes will have their reticules wiggle a bit when the rifle's dry fired. Consider the following. The optical tube that's moved by the adjustments is spring loaded at one end pressing it against the adjustment flats. That tube has weight. Snapping the firing pin sends shock waves through all the parts of the barreled action as well as anything attached to it. The scope's attached. So, some of those shock waves impart energy to that optical tube. And that causes it to bounce off the adjustment flats a tiny bit. Scopes with stronger springs will have less observed jump. The lens group that has its mechanics move to change power in zoom models can also jump a bit from dry firing shock. That'll make the reticule appear to jump, too. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Is this normal?
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