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Bushing size for 7WSM

 
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  #1  
Old 10-20-2005, 03:55 PM
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Bushing size for 7WSM

Ordereding som Redding dies for 7WSM
Using Win brass... what size bushings should i try out ??

Eddie Fosnaugh
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Old 10-21-2005, 06:16 AM
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Re: Bushing size for 7WSM

eddief,
There are many variables involved in determining bushing size for your given cartridge but one thing i will tell you now, is that in order for bushing dies to work at their best, you must neck-turn your cases.

Descriptions on all these methods can be found in previous posts on this forum,try using the search option to see what you can find.

Basically, if you have a factory chamber, turn your necks to 3/4 clean up, seat a bullet, measure the diameter of the neck with bullet seated and select a bushing approx. 002"-003" smaller then this measurement.
With a custom chamber it is a bit more involved, you need to take into account chamber neck diameter, case neck clearance and turn your necks accordingly but again select a bushing two to three thousandths smaller.

If you have not done any neck turning, again, complete descriptions can be found in previous posts.

Ian

"I meant to shoot the pike but the duck got in the way"
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  #3  
Old 10-21-2005, 09:39 AM
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Re: Bushing size for 7WSM

Redding has a complete description on determining bushing size on the Website located Right Here

If you buy one lot of brass and sort for uniformity you can avoid neck turning altogether.
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Old 10-21-2005, 09:56 PM
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Re: Bushing size for 7WSM

eddief,
I second what Center Punch said,but thought since I had the exact dies you are ordering I thought I would share the bushing that I use for my Winchester brass, without the necks turned.
It is a .309 titanium nitrade.
FWIW,
398nate
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  #5  
Old 10-22-2005, 03:47 PM
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Re: Bushing size for 7WSM

Thanks Ian and Nate.

It's no turn and I ordered a 309,310 and 311 to start. Thanks
Eddie
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