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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7-300 Win chamber issues
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<blockquote data-quote="sable tireur" data-source="post: 1062413" data-attributes="member: 27307"><p>razrbak,</p><p></p><p>I will cover just a couple of the high spots in your situation without the benefit of talking to Dave Kiff about this.</p><p></p><p>First and foremost, Dave (or whomever) should not have sent you a drawing of another reamer design if you specified yours originally without stating that they had one of the latter in stock and asked if they could substitute. Then, they should not have sent the second reamer without asking if that was acceptable to you.</p><p></p><p>You should have contacted them and asked questions about why the two sets of prints and what the differences were.</p><p></p><p>Failing this, your gunsmith should have read the information about the reamer on the shank of the reamer then asked you about whether or not it was acceptable. He should have checked the prints first also.</p><p></p><p>Your solution will not work since the headspace will be wrong. These two cartridges headspace on the belt until fireformed and neck sized only, at which point you can call the shoulder your headspace feature if you want. By deepening the chamber, you are pushing the belt deeper which deepens the headspace. The belt and the shoulder are always in relations to each other since they are ground into steel.</p><p></p><p>Even with the oversights by you and your gunsmith, I would contact Dave personally, not one of his helpers, in order to resolve this issue.</p><p></p><p>This is a quick evaluation due to a lack of time. Other details of the dimensional differences will have to wait.</p><p></p><p>Regards.</p></blockquote><p></p>
[QUOTE="sable tireur, post: 1062413, member: 27307"] razrbak, I will cover just a couple of the high spots in your situation without the benefit of talking to Dave Kiff about this. First and foremost, Dave (or whomever) should not have sent you a drawing of another reamer design if you specified yours originally without stating that they had one of the latter in stock and asked if they could substitute. Then, they should not have sent the second reamer without asking if that was acceptable to you. You should have contacted them and asked questions about why the two sets of prints and what the differences were. Failing this, your gunsmith should have read the information about the reamer on the shank of the reamer then asked you about whether or not it was acceptable. He should have checked the prints first also. Your solution will not work since the headspace will be wrong. These two cartridges headspace on the belt until fireformed and neck sized only, at which point you can call the shoulder your headspace feature if you want. By deepening the chamber, you are pushing the belt deeper which deepens the headspace. The belt and the shoulder are always in relations to each other since they are ground into steel. Even with the oversights by you and your gunsmith, I would contact Dave personally, not one of his helpers, in order to resolve this issue. This is a quick evaluation due to a lack of time. Other details of the dimensional differences will have to wait. Regards. [/QUOTE]
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7-300 Win chamber issues
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