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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Barrett M99 scope slipping forwards
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<blockquote data-quote="omt223" data-source="post: 2281311" data-attributes="member: 36222"><p>I have a M99 in 50 BMG with an Arken SH4 34mm tube. EGW couldnt give me an answer if their keystone rings were up to standard for 50 BMG so they sent me a set in exchange for a review. The arken rings that were "rated for 50" cracked. </p><p>Using the torque EGW gave me (15 in-lb) the scope slipped forwards about 1cm after 20 rounds or so. To me, the scope in the rings is SUPER slick compared to most rings I have ever messed with (with the rifle on the bipod and the lower half of the rings only, the scope will slip all the way back to the bell). </p><p></p><p>They told me I can tighten the screws to 30 in-lb max but that damage to the scope may result. Also stated that a slip of computer paper lining the rings may also provide more surface area. </p><p></p><p>Any other ideas on what I can do to remedy this without buying a lapping bar?</p></blockquote><p></p>
[QUOTE="omt223, post: 2281311, member: 36222"] I have a M99 in 50 BMG with an Arken SH4 34mm tube. EGW couldnt give me an answer if their keystone rings were up to standard for 50 BMG so they sent me a set in exchange for a review. The arken rings that were "rated for 50" cracked. Using the torque EGW gave me (15 in-lb) the scope slipped forwards about 1cm after 20 rounds or so. To me, the scope in the rings is SUPER slick compared to most rings I have ever messed with (with the rifle on the bipod and the lower half of the rings only, the scope will slip all the way back to the bell). They told me I can tighten the screws to 30 in-lb max but that damage to the scope may result. Also stated that a slip of computer paper lining the rings may also provide more surface area. Any other ideas on what I can do to remedy this without buying a lapping bar? [/QUOTE]
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Long Range Scopes and Other Optics
Barrett M99 scope slipping forwards
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