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Rifles, Reloading, Optics, Equipment
Gunsmithing
Remington 700 SPS scope base mounting problem
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<blockquote data-quote="Blackhawk" data-source="post: 1645984" data-attributes="member: 105459"><p>Usually but not always 6 - 48 TPI is the size that holes are tapped for. Before you do anything else take the screws to a gunsmith or a machinist if you know of one. What they will use is a screw pitch gage and a jewelers loupe or an over the head magnifier. in this manner you can determine the threads OD & Pitch/ T.P.I.</p><p>This is a small tap and once determined the correct tap size, simply chase the threads by hand using a small tap wrench. The tap itself must be perfectly square to the point where your threads start. Turn slowly about 1 1/2 turns and back out slowly to clear the thread chips. Keep going until you have cleared the threads. Moist likely the culprit is flash resulted from the tap not being adjusted deep enough. (Today all moist all machining is performed on a CNC machine and not by hand). Please do not use a dry tap to reestablish your threaded holes. You Can use any motor oil , or gun oil that you have at hand to lubricate your tap as you re tap the holes. If this is not to your liking please take it to a gunsmith . I doubt if any major store <strong><u>without </u></strong>a gunsmith on site will be able to rectify this problem. In this case search out a QUALIFIED GUNSMITH for your repair. Yes the QC department should have caught this error rand a quick call to customer service should result in a refund for your gunsmith's charge. ( I do not think that they will want to send your rifle back via UPS, Or Fed -Ex and pay the shipping.)</p><p>OBTW I'm a retired tool & die maker with over 40 yrs experience.</p></blockquote><p></p>
[QUOTE="Blackhawk, post: 1645984, member: 105459"] Usually but not always 6 - 48 TPI is the size that holes are tapped for. Before you do anything else take the screws to a gunsmith or a machinist if you know of one. What they will use is a screw pitch gage and a jewelers loupe or an over the head magnifier. in this manner you can determine the threads OD & Pitch/ T.P.I. This is a small tap and once determined the correct tap size, simply chase the threads by hand using a small tap wrench. The tap itself must be perfectly square to the point where your threads start. Turn slowly about 1 1/2 turns and back out slowly to clear the thread chips. Keep going until you have cleared the threads. Moist likely the culprit is flash resulted from the tap not being adjusted deep enough. (Today all moist all machining is performed on a CNC machine and not by hand). Please do not use a dry tap to reestablish your threaded holes. You Can use any motor oil , or gun oil that you have at hand to lubricate your tap as you re tap the holes. If this is not to your liking please take it to a gunsmith . I doubt if any major store [B][U]without [/U][/B]a gunsmith on site will be able to rectify this problem. In this case search out a QUALIFIED GUNSMITH for your repair. Yes the QC department should have caught this error rand a quick call to customer service should result in a refund for your gunsmith's charge. ( I do not think that they will want to send your rifle back via UPS, Or Fed -Ex and pay the shipping.) OBTW I'm a retired tool & die maker with over 40 yrs experience. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Remington 700 SPS scope base mounting problem
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