Redding Bushing Diameters

[Brians356]

I believe somebody mentioned pin gauges?

You do.
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[6MMsteve]

How would you do it with a height gauge?

granite,magnet, heightgauge I think, I will try it at work tonight, I have a lab to use see if I can do it, I hate height gauges lol

 

[jerseyjoe]

Small hole gage

 

[6MMsteve]

How would you do it with a height gauge?

I think I can attach to a magnet it weighs 36lbs on a granite top then touch off with height gauge then traverse up. I'm at work in the lab I will try it tonight and see, it may not work just an idea I will get back later see what happens I have 8 bushings with me, gonna see what happens lol

 

[rimfiremac]

Guys, the direction this thread has gone is absurd.

If you have too much or too little neck tension, buy the next size bushing for $15 or neck turn a half thou smaller. It really isn't complicated.

And no, the advertised bushing sizes are not always accurate- for $15, 0.0005 consistent tolerance is not a reasonable expectation! Your decision after that to buy a different $15 bushing, or a $100 gauge set!

 

[dcali]

Am I the only one who doesn't care? Just measure the brass that comes out. If it's too big, use a smaller bushing. I don't think I've ever measured a bushing.

 

[6MMsteve]

height gauge coo coo no go for me lol

 

[CustomReloadingTools]

Whidden Gunworks recently purchased our neck bushing business as well as many of the other reloading tools in our lineup. Whiddens are selling the remaining CRT bushing inventory as well as producing their own bushings once the existing inventory is used up. Consumers will continue to get a top quality bushing at a very fair price. John Whidden is a top notch guy and will carry on with building the reloading tools lineup that we offered. If there are any questions feel free to contact Whidden Gunworks or email us: sales@CustomReloadingTools.com

Whidden doesn't produce bushings. They buy them from Custom Reloading Tools, (CRT).

 

[hogpatrol]

 

[Brians356]

Guys, the direction this thread has gone is absurd.

I agree, seeing as how the OP simply asked how to measure bushings, not how to control neck tension.
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[Webster]

I agree, seeing as how the OP simply asked how to measure bushings, not how to control neck tension.
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What difference does it make what the true bushing diameter is if it doesn't reduce the neck to a specific diameter?

 

[Cool Tool]

I hate to agree or disagree but post number 23 hit the nail on the head if you want inside dimensions get some ball mikes an good outside mikes an learn how to read them it takes a very delicate feel most people will measure differently.

 

[Brians356]

What difference does it make what the true bushing diameter is if it doesn't reduce the neck to a specific diameter?

That would be something you could ask the OP. After all, he asked about measuring bushings. For whatever crazy reason I chose to respond directly to his question. He never did indicate just why he wanted to measure true diameter.

But I can imagine one hypothetical where measuring diameters might be worthwhile: Suppose I had two or three different bushings all stamped the same nominal size, possibly from different manufacturers, or maybe just with or without TiN coating. It seems worthwhile to know how the bushings compare for diameter, so I could pre-sort them for subsequent neck sizing experimentation. For example, I might prefer to start with the largest bushing and work down in size. Just thinking outside the box here, you understand.
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[butchlambert]

That would be something you could ask the OP. After all, he asked about measuring bushings. For whatever crazy reason I chose to respond directly to his question. He never did indicate just why he wanted to measure true diameter.

But I can imagine one hypothetical where measuring diameters might be worthwhile: Suppose I had two or three different bushings all stamped the same nominal size, possibly from different manufacturers, or maybe just with or without TiN coating. It seems worthwhile to know how the bushings compare for diameter, so I could pre-sort them for subsequent neck sizing experimentation. For example, I might prefer to start with the largest bushing and work down in size. Just thinking outside the box here, you understand.
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OK, how would you know which was larger to be able to do this? I think to be able to do this you would need to know the ID of the bushing. All, of mine are solid carbide as I was in that business many years ago. I do have pin gauges in tenths to verify mine.

 

[Brians356]

OK, how would you know which was larger to be able to do this? I think to be able to do this you would need to know the ID of the bushing.

Gosh. Ya think? Brilliant.
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[butchlambert]

Gosh. Ya think? Brilliant.
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Maybe you need to quit blowing and give an intelligent answer.

 

[Brians356]

Maybe you need to quit blowing and give an intelligent answer.

To the OP's original question? Three days ago:

Pin gages only give "go / no- go" accuracy, but they're what I use.

It just occurred to me that Cerrosafe would work well, and then you can get a .0001" micrometer in play.

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[butchlambert]

Cerrosafe shrinks after cooling.


"It just occurred to me that Cerrosafe would work well, and then you can get a .0001" micrometer in play". -

Kinda funny quote-pin gauges give go or no go??
If my pin gauges are in .0001 increments, what does that mean?

 

[Brians356]

Cerrosafe shrinks after cooling.


"It just occurred to me that Cerrosafe would work well, and then you can get a .0001" micrometer in play". -

Kinda funny quote-pin gauges give go or no go??
If my pin gauges are in .0001 increments, what does that mean?

It means your gages can measure to the nearest .0001". My gages are only in .001" increments, and therefore not very useful for the task.

You're free, of course, to question Cerrosafe's reliability, fair enough. But was my answer really unintelligent? (Intelligence is a trait applied to people, not words. Try "intelligible" or "coherent".)

You may well appreciate a chance to denigrate what Brownells publishes about Cerrosafe:

"Cerrosafe shrinks during the first 30 minutes of cooling and then at the end of an hour, is EXACTLY chamber size."
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[butchlambert]

It means your gages can measure to the nearest .0001". My gages are only in .001" increments, and therefore not very useful for the task.

You're free, of course, to question Cerrosafe's reliability, fair enough. But was my answer really unintelligent? (Intelligence is a trait applied to people, not words. Try "intelligible" or "coherent".)

You may well appreciate a chance to denigrate what Brownells publishes about Cerrosafe:

"Cerrosafe shrinks during the first 30 minutes of cooling and then at the end of an hour, is EXACTLY chamber size."
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Methinks you just want to argue. I don't know why you are hung up on intelligence. Having been in the carbide bushing business I started my Deltronic pin inventory. They are in .0001 increments and I also have them for each bore size for the bores that I chamber. I have 25 pins each for every caliber"bore size" that I chamber. My 25 pin barrel sets are in .0001 increments. Say a 6mm barrel has a .237 target bore. My 25 pins are in tenths 12 sizes smaller and 12 larger. Do you understand where I'm coming from?
Why would anybody pour a little cerrosafe in a bushing and then wait 30 minutes to measure it?
I think my point has been made I will will not pursue it further.