brand new brass ?

Prime and load. You are wasting time running new brass through the dies. I used to do it, but learned a while ago that it served no purpose.
 
So it depends on how you do things

Myself I want my ammo to be right
I do NOT cut corners or take short cuts

Yes it takes more time to do it right

All my new brass has been sized by me, I know
its correct when I use it

I have seen too many awh sh__s and dam its at the range
 
This is in reference to the post by Jimro,

I find brass to actually be MORE accurate after being fired. For my bolt guns, when I make a match load I use thrice fired, fire formed and neck sized brass. Being neck sized and fire formed means case expansion is at its minimum. The neck tension in brass fired multiple times is reduced which ensures the bullets are not molested in any way when being seated and because neck tension is less, I find the standard deviation on the velocity to be less.

Your reduced accuracy on successive reloads could be because the case has expanded, is now thinner increasing case volume AND you may not be returning them to factory specs which means the pressure of your load has changed and my no longer be behaving like the load you initially developed...which is why I do not develop my loads with new brass...i try to always buy once fired brass but if I can't, I will make a generic practice load or test a new bullet so that I can fire form the brass.
 
Mississippi,

Just to clarify, I compared the same load in virgin and once fired brass. I didn't say that you couldn't get better accuracy from once or twice fired brass by specifically doing the load workup with that brass. I know a lot of folks who use the accuracy load for virgin brass as their fire forming charge, and the brass will never see that same charge ever again.

Jimro
 
Ahh, gotcha Jimro..... because that is essentially what I do, use the accuracy load on virgin brass then do my load workup on once fired or twice fired.
I find similar results as you kind of implied also, which is once it has been fire formed, the load doesn't really change much in successive reloads, but there will be significant difference between brand new brass and once fired.
 
difference

About that significant difference..... maybe if you neck size only...I can see that. If, however, you are FL sizing, the sizing process returns the shell to factory dimensions. How different is it going to be? You will have a different load in the case, THAT may make it perform better.
Pete
PS I shoot from a factory crate of brass. When I am done, I pick the cases up, bag them in lots of 100 and sell them to other shooters. They are not buying it because it will shoot better... they are going to size it. They are buying it because it is cheap.
P
 
I size all new brass
For me not to requires too much trust
( I have worked in factories, and I learned that SH!! happens )
( I was not there when it was made, boxed, packaged, shipped,
put on the shelf or when the package was dropped, stepped on
or played with by those that handled it )

Problems I have found with new brass --
bent necks
NO flash hole
Off center flash hole
NO neck ( bottle neck case )
Made with 2 pieces of brass (not on purpose )
NO primer pocket
Never been formed ( still just a round disk )

Stage how these defects got though quality control
So when I size, do the primer pockets, do the flash holes,
trim and chamfer, I WILL find a defective case
 
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