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The Basics, Starting Out
1 piece vs 2 piece bases
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<blockquote data-quote="VarmintGuy" data-source="post: 484399" data-attributes="member: 10334"><p>Idahoan: I use both types of ring bases - the one piece type and the two piece types.</p><p>I have never had a problem with either "coming loose" or failing in some fashion.</p><p>Now to "correct" some perceptions YOU may have about the one piece base, fist of all - the ONLY "alignment" that the one piece base can "guarantee" like you suggest is the rings SHOULD be at the SAME LEVEL in a one piece base.</p><p>The actual openings of the rings can still be out of LINEAR alignment!</p><p>How YOU correct this is when you are setting up your rings on the one piece base you get out your heavy steel rod lapping tool and use IT to align the rings to EACH OTHER!</p><p>How you do this is to take the top half of the rings off the bottoms after the rings are set in the one piece base.</p><p>Lay the heavy rod into the bottoms halves of the rings and physically align them and tighten them down IN ALIGNMENT with each other.</p><p>Then lap the rings - THIS guarantees them being in alignment - not the one piece base.</p><p>And another point - the one piece base is NOT attached to the barrel - it is attached to the action and the barrel and action should remain pretty much in alignment even when they cool or heat at different rates.</p><p>I have never traced an accuracy problem to the action and barrel expanding at different rates.</p><p>This could be so - but a heated barrel compared to when its cool is often cause for MINOR changes in bullet impact not significant loss of accuracy just slightly different points of impact as barrel temperatures change.</p><p>This has nothing to do with ring bases.</p><p>To minimize "torque" on a scope one must precisely align the rings to each other this is done NOT with the type of ring bases used but by aligning, locking down and then lapping the rings.</p><p>Lapped rings impart no twisting torque to the scope.</p><p>And this, when I set my rings into the bases (both types) I use a large carpenters square to SQUARE the rear ring to the exact axis of the rifles bore.</p><p>If you can visualize the rear ring place a carpenters square on the front edge of the rear ring and use it thusly to exactly make this surface perpindicular to the Rifle bore.</p><p>This is a little tough to describe in print but is easily done with your Rifle held in a Rifle cradle (gun vise) and placing the carpenter square onto the front of the rear ring. Once the rear ring is set in and aligned THEN install the front ring and place the heavy lapping rod into the rings and lock the front ring down - then lap them.</p><p>If you have any questions regarding my humble attempt to illustrate this last please do not hesitate to ask me to try again explaining myself.</p><p>I have been mounting scopes on Rifles for nearly 50 years now and about 25 years ago I started "aligning and lapping my rings" - this put an end, immediately, to all manner of strange accuracy problems!</p><p>I highly recommend lapping your rings or try some of the "insert" type rings for your scope mounting.</p><p>Hold into the wind</p><p>VarmintGuy</p></blockquote><p></p>
[QUOTE="VarmintGuy, post: 484399, member: 10334"] Idahoan: I use both types of ring bases - the one piece type and the two piece types. I have never had a problem with either "coming loose" or failing in some fashion. Now to "correct" some perceptions YOU may have about the one piece base, fist of all - the ONLY "alignment" that the one piece base can "guarantee" like you suggest is the rings SHOULD be at the SAME LEVEL in a one piece base. The actual openings of the rings can still be out of LINEAR alignment! How YOU correct this is when you are setting up your rings on the one piece base you get out your heavy steel rod lapping tool and use IT to align the rings to EACH OTHER! How you do this is to take the top half of the rings off the bottoms after the rings are set in the one piece base. Lay the heavy rod into the bottoms halves of the rings and physically align them and tighten them down IN ALIGNMENT with each other. Then lap the rings - THIS guarantees them being in alignment - not the one piece base. And another point - the one piece base is NOT attached to the barrel - it is attached to the action and the barrel and action should remain pretty much in alignment even when they cool or heat at different rates. I have never traced an accuracy problem to the action and barrel expanding at different rates. This could be so - but a heated barrel compared to when its cool is often cause for MINOR changes in bullet impact not significant loss of accuracy just slightly different points of impact as barrel temperatures change. This has nothing to do with ring bases. To minimize "torque" on a scope one must precisely align the rings to each other this is done NOT with the type of ring bases used but by aligning, locking down and then lapping the rings. Lapped rings impart no twisting torque to the scope. And this, when I set my rings into the bases (both types) I use a large carpenters square to SQUARE the rear ring to the exact axis of the rifles bore. If you can visualize the rear ring place a carpenters square on the front edge of the rear ring and use it thusly to exactly make this surface perpindicular to the Rifle bore. This is a little tough to describe in print but is easily done with your Rifle held in a Rifle cradle (gun vise) and placing the carpenter square onto the front of the rear ring. Once the rear ring is set in and aligned THEN install the front ring and place the heavy lapping rod into the rings and lock the front ring down - then lap them. If you have any questions regarding my humble attempt to illustrate this last please do not hesitate to ask me to try again explaining myself. I have been mounting scopes on Rifles for nearly 50 years now and about 25 years ago I started "aligning and lapping my rings" - this put an end, immediately, to all manner of strange accuracy problems! I highly recommend lapping your rings or try some of the "insert" type rings for your scope mounting. Hold into the wind VarmintGuy [/QUOTE]
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1 piece vs 2 piece bases
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