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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Holding zero
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<blockquote data-quote="Greyfox" data-source="post: 600884" data-attributes="member: 10291"><p>I didn't realize you were shooting an AR. One more thing for AR's. It doesn't sound like this is your problem but looseness between the upper and lower can cause random impact point shifts. I don't like using the tension pins that are available since they loosen and tend to wear out the pin holes in the alloy frame. I use the plastic wedges available from Brownells but make a modification. I drill a small hole in the base of he wedge. I then take a 1/8" diameter spring like a rebound spring for a smith and wesson revolver that is cut to length and pressed into the hole. This modification applies additional tension and the plastic doesn't compress over time. Works great! I'm an AR nut, and shoot 200-300 yard egg shoots with them about a dozen matches a year. When set up well an AR can give the bolts a run for the money.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 600884, member: 10291"] I didn't realize you were shooting an AR. One more thing for AR's. It doesn't sound like this is your problem but looseness between the upper and lower can cause random impact point shifts. I don't like using the tension pins that are available since they loosen and tend to wear out the pin holes in the alloy frame. I use the plastic wedges available from Brownells but make a modification. I drill a small hole in the base of he wedge. I then take a 1/8" diameter spring like a rebound spring for a smith and wesson revolver that is cut to length and pressed into the hole. This modification applies additional tension and the plastic doesn't compress over time. Works great! I'm an AR nut, and shoot 200-300 yard egg shoots with them about a dozen matches a year. When set up well an AR can give the bolts a run for the money. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Holding zero
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