Fireform brass and ladder test

[AlanX]

Is it possible to do a ladder test while fire-forming? what's the downside if not?

 

[spife7980]

Depending on how much you have to form you can develop so that you have a reasonably accurate load to play with until it’s all formed instead of a scatter gun

 

[straightshooter1]

Is it possible to do a ladder test while fire-forming? what's the downside if not?

Yes, it's possible. But you have to think of it like a rough draft that helps you get to the final step of fine tuning.

 

[Doom]

I agree with the above comments.

The brass takes a certain amount of energy to expand to fill the camber each time it's fired. After the first firing you will either resize with your own die or neck size so that the next firing will likely require less energy than the first firing so that energy will show up as pressure/velocity. Keep that in mind and don't load a charge that is beginning to show pressure in that first firing.

I use the OCW method and I have done load development with new brass. I usually found a suitable charge that worked with fired brass whether I neck sized or full length sized.

 

[Rio Precision Gunworks]

Unless shooting a discipline in which the rifle and shooter are capable and it’s required for performance……

You won’t see a large enough difference between fired and virgin brass to matter. Unless for some reason your chamber to virgin brass fitment is very loose. Or a cartridge which requires forming.

I.E. if shooting a discipline like PRS….you won’t go from shooting tiny groups to bad groups or missing moving from virgin to fired brass.

 

[spife7980]

Depends on what you are forming. 6 creed not much. 6 br to 6 dasher and youll see a big change.

 

[AlanX]

Depends on what you are forming. 6 creed not much. 6 br to 6 dasher and youll see a big change.

33xc

 

[AlanX]

Unless shooting a discipline in which the rifle and shooter are capable and it’s required for performance……

You won’t see a large enough difference between fired and virgin brass to matter. Unless for some reason your chamber to virgin brass fitment is very loose. Or a cartridge which requires forming.

I.E. if shooting a discipline like PRS….you won’t go from shooting tiny groups to bad groups or missing moving from virgin to fired brass.

1600-2400 yards... KO1 match.