Different dies manufactures

[Osmos]

Reloading for precision.
Maybe someone tried! For the same barrel, the same caliber, of course, can forming the brass with different dies (from different manufacturers), in terms of accuracy, generate different results? How much are these differences?
The burning volume differs, I know, but is the same node kept? What are the differences in velocity and group spread?
All the same, just different forming. Neck tension will be set with mandrel.

 

[mgunderson]

Curious question. It is in a book from Showfeld and has it has formation about paper wrapped bullets. Sorry I watch part of Shooter.... again.

What sport are we playing in?

Dies have an influence, but the 55-60ksi pressure makes the brass chamber size quickly. The difference has been less than what I seen between new brass and once fired brass. BUT, I don't play in the br sandbox.

 

[Doom]

Assuming the headspace clearance and concentricity is the same their should be very little difference. The differences in volume are momentary and occur well below maximum pressure for normal loads so any velocity differences will be small.

I’m sure that some will say it does and I would love to see a test!

 

[Osmos]

OK. In February, then I have time, I will check on a rifle caliber. I've already got dies from Redding, Forster, Lee and Hornady. I will present the results in terms of velocity, if it is of interest.