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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How is any sporterized rifle with a 2 piece scope base accurate?
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<blockquote data-quote="Alibiiv" data-source="post: 3078215" data-attributes="member: 69192"><p>I personally prefer the two-piece scope bases over the one-piece bases because they give more access to the ejection port for loading and unloading the rifle. I have several rifles with two piece bases, all of these rifles have been lapped. Unless the rings <strong><em><u>on any rifle</u></em></strong> have been line bored, <strong><em><u>after they have been mounted to the bases</u></em></strong>, there is always going to be some misalignment in those rings. There are too many variables within the mounting system to<em> "not"</em> have misalignment. If one follows the many posts on bedding scope rings and bases, most every brand/make of scope ring/bases are mentioned in these posts; including the most expensive scope/mounting systems. Most of my rifles are Ruger 77s that have the integral scope bases, even with these there is some misalignment, plus Ruger rings are not perfectly machined round/cylindrical from the factory. I also have a few round-top Ruger 77s that use Remington 700 scope bases, these too always show some misalignment that lapping will always bring back to perfect after lapping. When I lap my rings in, I always put a witness mark on the rings to ensure that they are put back in the same manner that they were lapped in. I use a center punch to mark the front ring with a single punch mark on the top and on the bottom ring. I so the same process with the rear ring, only I put two punch marks on the top and the bottom ring. So no matter what I do with scope mounting or replacement the rings will always go back together in the same way they were lapped in place. If I use the lapped rings on another rifle, I repeat the same process and lap the rings back in again so the rings are lapped as they are mounted on the different rifle. I am not a professional gun smith by any means, however I have mounted many, many scope bases and there are not any that I have installed where lapping has not been necessary to align the scope rings. My suggestion would be to mount your scope bases to your rifle and then lap the rings. The lapping process will indicate if your scope bases are misaligned and then you can go from there. If the rings are too far out of alignment, then it is time to visit a gun smith. One could weld those scope bases on, unless the bases are held aligned with a solid bar of steel between the front and the rear ring there will be misalignment. Even using this method with the solid bar of steel, the stresses in the weld could create some misalignment. Good luck with your project, it sounds interesting.</p></blockquote><p></p>
[QUOTE="Alibiiv, post: 3078215, member: 69192"] I personally prefer the two-piece scope bases over the one-piece bases because they give more access to the ejection port for loading and unloading the rifle. I have several rifles with two piece bases, all of these rifles have been lapped. Unless the rings [B][I][U]on any rifle[/U][/I][/B] have been line bored, [B][I][U]after they have been mounted to the bases[/U][/I][/B], there is always going to be some misalignment in those rings. There are too many variables within the mounting system to[I] "not"[/I] have misalignment. If one follows the many posts on bedding scope rings and bases, most every brand/make of scope ring/bases are mentioned in these posts; including the most expensive scope/mounting systems. Most of my rifles are Ruger 77s that have the integral scope bases, even with these there is some misalignment, plus Ruger rings are not perfectly machined round/cylindrical from the factory. I also have a few round-top Ruger 77s that use Remington 700 scope bases, these too always show some misalignment that lapping will always bring back to perfect after lapping. When I lap my rings in, I always put a witness mark on the rings to ensure that they are put back in the same manner that they were lapped in. I use a center punch to mark the front ring with a single punch mark on the top and on the bottom ring. I so the same process with the rear ring, only I put two punch marks on the top and the bottom ring. So no matter what I do with scope mounting or replacement the rings will always go back together in the same way they were lapped in place. If I use the lapped rings on another rifle, I repeat the same process and lap the rings back in again so the rings are lapped as they are mounted on the different rifle. I am not a professional gun smith by any means, however I have mounted many, many scope bases and there are not any that I have installed where lapping has not been necessary to align the scope rings. My suggestion would be to mount your scope bases to your rifle and then lap the rings. The lapping process will indicate if your scope bases are misaligned and then you can go from there. If the rings are too far out of alignment, then it is time to visit a gun smith. One could weld those scope bases on, unless the bases are held aligned with a solid bar of steel between the front and the rear ring there will be misalignment. Even using this method with the solid bar of steel, the stresses in the weld could create some misalignment. Good luck with your project, it sounds interesting. [/QUOTE]
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How is any sporterized rifle with a 2 piece scope base accurate?
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