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Reaming 223 to 22-250

 
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Old 03-26-2011, 09:42 AM
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Location: Gann Valley, SD
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Reaming 223 to 22-250

I have a 223 barrel that I'm going to ream out to a 22-250. My question is this: Will the 22-250 reamer follow the 223 chamber or do I need to counterbore first. I am assuming the pilot bushing on the reamer will not reach the rifled bore? I have the lathe and necessary tooling but have only done short chambered barrels previously. Thanks for any insight you can give me.
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Old 03-26-2011, 11:24 AM
B23 B23 is offline
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Re: Reaming 223 to 22-250

I know this doesn't answer your question but for what it's worth I have a new 22-250 take off barrel & recoil lug from a Remington M700 BDL I would make you a smoking deal on.
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Old 03-26-2011, 11:50 AM
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Re: Reaming 223 to 22-250

Quote:
Originally Posted by SDLAW View Post
I have a 223 barrel that I'm going to ream out to a 22-250. My question is this: Will the 22-250 reamer follow the 223 chamber or do I need to counterbore first. I am assuming the pilot bushing on the reamer will not reach the rifled bore? I have the lathe and necessary tooling but have only done short chambered barrels previously. Thanks for any insight you can give me.
Yes. Take light cuts (.015 to .030) and clean.

The reamer will always try to center it's self in the old chamber.

The reason for taking small cuts is so as soon as the pilot reaches the bore it will true up
any misalignment that may have existed in the old chamber.

You should not have any problems as long as you take it easy.

Good luck and have fun.

J E CUSTOM
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Old 03-26-2011, 01:16 PM
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Re: Reaming 223 to 22-250

I do it all the time, actually I have one in the lathe right now and the next barrel right behind it is going to have the same thing done. I also do quite a few 308 to 300wsm rechambers. This is a good way to clean up bad factory/gunsmith cut chambers and still save a barrel.
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Old 03-27-2011, 06:45 PM
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Re: Reaming 223 to 22-250

Thanks for the replies everyone. I've been messing aroung with factory takeoff barrels to sharpen my skills before taking on a new custom barrel. It won't hurt so bad if I make a mistake. The more I thought about counterboring the more questions that came to mind and it seemed like the chance for creating a huge mess increased. I give it a go with the reamer.
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Old 03-30-2011, 07:24 PM
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Re: Reaming 223 to 22-250

The 223 is a much better cartridge than the 22-250.
The 22-250 is SAAMI registered at 65kpsi and has a practical limit for handloads at 67kpsi.
The 223 is SAAMI registered at 55 kpsi and has a practical limit for handloads at 75 kpsi

With light bullets, the fastest a 22-250 can push the bullet slows down the fastest a 223 can push that bullet with in a few feet.

The 22-250 has big advantage with heavy bullets, but due to some bullets spinning apart, factory barrels for 22-250 have slow twists, and can only stabilize light bullets.

But if you already have wasted money on the 22-250 reamer and have a take off 223 barrel you want to screw around with, and the action lying around is a Mauser bolt face, then the way to get the reamer pilot to reach the bore is with a series of steps with drills and a boring bar.

Or you could hack saw off some of the old barrel, if you have enough shank to re thread.
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Old 03-30-2011, 07:46 PM
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Re: Reaming 223 to 22-250

Anything short of a boring bar will take the path of least resistance.

That means when you "stack tools" up inside a hole the first tool used generally wins. Meaning everything else will be inclined to follow what the 1st one started.
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