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Brand new brass - What should I do?

 
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  #1  
Old 04-17-2011, 05:47 PM
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Brand new brass - What should I do?

I have a brand new never fired barrel chambered in 7WSM.

I have bought some Winchester brass and I am ready to start shooting.

The first thing I did is clean out the flash hole on all of the new brass. Should I turn the necks first or fire them once then turn the necks?

Thanks,

Ryan
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Old 04-17-2011, 06:45 PM
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Re: Brand new brass - What should I do?

For new cases, I re-size to at least get the neck tension the same and round. De-burr the flash hole. Load and shoot! I don't worry with OAL until after they've been shot.
Neck turning is usually reserved for tight-neck chambers and not necessary if you're shooting a regular sized or factory chamber. JohnnyK.
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Old 04-18-2011, 07:52 AM
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Re: Brand new brass - What should I do?

I run my cases through a FL sizer then trim them all to the min length. Then I remove the inside the case flash hole burr and then use the primer pocket square too to make sure everything is square. Like has been said neck turning for a standard chamber is not necessary unless you have a bad batch of cases that have really bad thick and thin spots in the neck. I then load them and shoot them. Then I part size the case just bumping the shoulder with a FL die for my hunting ammo. I have found that this usually gives me better accuracy over the new cases.
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Old 04-18-2011, 10:34 AM
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Re: Brand new brass - What should I do?

"What should I do?"

There's no "should" to it, it's not critical.
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Old 04-19-2011, 03:16 PM
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Re: Brand new brass - What should I do?

Quote:
Originally Posted by RT2506 View Post
I run my cases through a FL sizer then trim them all to the min length. Then I remove the inside the case flash hole burr and then use the primer pocket square too to make sure everything is square. Like has been said neck turning for a standard chamber is not necessary unless you have a bad batch of cases that have really bad thick and thin spots in the neck. I then load them and shoot them. Then I part size the case just bumping the shoulder with a FL die for my hunting ammo. I have found that this usually gives me better accuracy over the new cases.
I'll second this motion and vote for it too.

With rimless bottleneck cases, they've typically shot the most accurate using full lenght sizing dies set to bump the shoulder back no more than a couple thousandths. This reduces body diameters about the same. If you use a bushing die such as one from Redding or RCBS, you won't need one of those neck-bending balls to up size the case neck; just use one about 2 to 4 thousandths smaller than a loaded round's neck diameter. Tighter/smaller one for more grip, looser/larger ones for less grip on the bullet. The case neck expands about half as much as it gets sized down in the bushing die.

Sierra Bullets resizes their cases of this type this way to test their products for qualtiy. Been doing it since the 1950's and nobody shoot's 'em as accurate as they do in their rail guns using standard SAAMI chambers.
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Old 04-19-2011, 09:07 PM
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Re: Brand new brass - What should I do?

Quote:
Originally Posted by Ryan55555 View Post
I have a brand new never fired barrel chambered in 7WSM.

I have bought some Winchester brass and I am ready to start shooting.

The first thing I did is clean out the flash hole on all of the new brass. Should I turn the necks first or fire them once then turn the necks?

Thanks,

Ryan
As most have said, turning the necks in a std. chamber is nor necessary although a "light skinning" might help a little. Anneal the necks after you do this as this helps uniform the neck tension......Rich
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