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Old 01-10-2013, 12:46 PM   #1
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Default Reline barrel without pilot drill ??

Hi
I am new here.
I have an old 22 with a worn out or corroded out barrel. I intend on relining it. The drills sold to do this have a pilot on them and are quite pricey, the pilot guiding the drill through the existing bore.
Has anyone just drilled one out with a regular drill ? I don't see why a regular drill won't just follow the existing bore.
And yet there must be a reason they make these special drill bits.

Please share experience good or bad.

Thank you, Tom

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Old 01-10-2013, 01:06 PM   #2
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without the pilot, the bit will oscillate and go off center.
(I tried to do one without the pilot hoping I could do it cheaply. It didn't work out.)

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Old 01-10-2013, 01:25 PM   #3
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Some make their own piloted drill bits. I would recommend buying one. They last a long time and can do many barrels(yes, I know this personally).

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Old 01-11-2013, 04:01 AM   #4
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A standard twist drill, silver soldered on to an extension will work just fine but you have to withdraw the drill to clean frequently. In a 22 bore, a 5/16 drill can go no more than 1/2 inch before it should be withdrawn and cleaned. With a twist drill, it has to be pushed a bit to center it up in an existing hole. Drill too slow, and it will wander. The shank on the drill also acts to center the drill from the rear. I have drilled a 1/2 inch hole through 54 inches of hydraulic rod by drilling halfway from each end. Where the holes met was within .015" of being aligned. A lot of work though; it took close to two hours. When I was extending a bit for this purpose, I check the bit for straightness ahead of time. If the drill bit wasn't straight, I didn't use it.
One of the big advantages of the piloted drills sold for the purpose is that the drill does a good job of clearing chips. The flexibilty of the bit is what makes the pilot mandatory. GD

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