need to size new brass?

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I'm getting ready for my first batch of .223 ammo and was wondering if i need to run all my brass through a resizing die first. I have all new winchester brass.
 
Depends what brass you get. Norma brass is perfect right out of the box and I load it as is. Winchester brass in a bag is banged up and gets resized.
 
You may as well, just to round out the necks. Its hard to chamfer square necks.

Usually brand new brass is at minimum spec. They usually won't even touch the sides of a standard FL die. I will routinely run new cases through the die without lube.
 
I treat new brass just the same as I do once or more fired. Size, run through trimmer (have actually found some of the new win brass too long), chamfer mouths, primer pockets, tumble to remove lube,etc. Doesn't take too long to do a bag.
 
I ususally fire form my new brass because most of it comes to me with a primer, charge, and bullet installed at the factory, then I neck size it when reloading. Otherwise, yes, I run it through a full-length sizing die the first time.
 
I bought a bag of S&B brass (20 pieces), and it all looked perfect. I decided to neck size 5, FL size 5, and left 10 alone as is. I did it mainly to practice with my dies. I don't think any of them needed sizing or triming. Of course, if they have dents or the case mouths are uneven, definitely go for it.
 
The short answer is that you don't need to FL or otherwise resize. You may choose to do so, but it is not necessary. As long as the case mouth will accept the bullet, it will seat and round out the case mouth.
I have always loaded by new brass this way, without any problems. After the first firing I then do a case prep, such as FL size, trim all cases to a common length, chamfer. I don't see any point in trimming to length until they have been fired at least once.
Always a difference between 'need to' and 'could'.
 
Lots of yes and no answers here.
If poking paper, neck size is a good idea.
Shooting fur?
Best to have them as close to 100 per cent as possible.
And don't forget to chamber all your reloaded rounds to
be sure they will do exactly that before you wander out into
the bush.
My buddy lost one of the biggest bucks he has ever seen as the one
round he grabbed and couldn't close the bolt on.:eek:
He trusted the reloads he got with his new to him rifle.:rey2
Talk about a big face plant................jeeeeeeesh.

f:P:
 
kamlooky said:
Lots of yes and no answers here.
If poking paper, neck size is a good idea.
Shooting fur?
Best to have them as close to 100 per cent as possible.
And don't forget to chamber all your reloaded rounds to
be sure they will do exactly that before you wander out into
the bush.
My buddy lost one of the biggest bucks he has ever seen as the one
round he grabbed and couldn't close the bolt on.:eek:
He trusted the reloads he got with his new to him rifle.:rey2
Talk about a big face plant................jeeeeeeesh.

f:P:
Click to expand...
kamlooky;
I heartily agree with all your points, well said.

The only thing I might add is to try them in your magazine as well if the firearm in question is so equipped.

I spent a day on the mountain with a single shot Ruger 77 long years ago because I'd loaded the rounds to fit the very long throat of that .338 Win Mag and neglected to try any in the magazine. Of course they were all just a little too long to fit. :redface:

The only upside was that at least I wasn't on a fly in hunt or week long trip out in the boonies somewhere.

Anyway, good points to remember when we're out afield in pursuit of protein.

All the best to you in 2012 kamlooky.

Regards,
Dwayne
 
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