Turn Then Fire Form or Fire Form Then Turn?

[jeguia]

I’m relatively new so please be patient with this question.

should I turn necks prior-to (new brass) or after fire forming?

Please advise.

Thanks!

 

[Dusty Stevens]

Does your chamber have a tight neck that requires fire forming prior to even chambering the round?

 

[jeguia]

Does your chamber have a tight neck that requires fire forming prior to even chambering the round?

No sir. I can chamber normally with new (unfired) brass.

 

[Dusty Stevens]

If your loaded round neck measured over the pressure ring is at least .002 under your neck measurement then id fireform first then turn. They will be straighter and more consistent after firing once

 

[jeguia]

If your loaded round neck measured over the pressure ring is at least .002 under your neck measurement then id fireform first then turn. They will be straighter and more consistent after firing once

Thank you!

 

[dmoran]

Turn first (slightly into the junction), then the cut line will fire-form/blow into the shoulder, eliminating it as a potential donut/taper effect.

 

[comagutsa]

turn 1st here

 

[WIB3]

Looks by the pic that you are fire forming 6BR cases to make a Dasher. That being said you should trim necks before fire forming. For a Dasher though you should only be trimming.250 below the case mouth. I’m assuming that all of you cases have been trimmed to the same OAL. At .250 you will create a ( lip ) on the inside of your case just beyond the neck shoulder junction. OAL is important to keep this transition at the same spot in every case.

 

[Dusty Stevens]

Those look more like a brx to me and look perfectly done.

 

[comagutsa]

Yep BRX and here is some hydoformed cases for you also. All trimmed to length 1st then neck turned on 6BR brass to shoulder then hydroformed

 

[Ccrider]

Neat question. I have done it both ways with 6ppc. With the .262 I turned first. I have been testing fireforming first with the new .268 reamer.

 

[Dusty Stevens]

Neat question. I have done it both ways with 6ppc. With the .262 I turned first. I have been testing fireforming first with the new .268 reamer.

If you fireform with a 22 bullet or no bullet then expand and turn youll make beautiful cases

 

[Ccrider]

If you fireform with a 22 bullet or no bullet then expand and turn youll make beautiful cases

Thanks. I Will give it a try. Kind of late on this round. I just finished fireforming 50 cases and loading and sealing 28 more to fireform.

 

[Longtrain]

Not being sarcastic here, but I hate turning necks. In my case this is a third option, FF in a Lapua no-turn neck chamber, quick and easy. I’m sure that the correctly configured and prepared case will perform to excellent standards, in my games it’s not needed.

 

[cj8vet]

dusty, fire form with .22 bullet?? Never heard of doing that(on purpose)???

 

[Dusty Stevens]

dusty, fire form with .22 bullet?? Never heard of doing that(on purpose)???

Works better than any other method

 

[bozo699]

Dusty,
I used about every method I can think of to ff brx, dasher and brdx but I never have used 22 bullets what is your exact method? Thanks in advance.
Wayne

 

[Dusty Stevens]

Dusty,
I used about every method I can think of to ff brx, dasher and brdx but I never have used 22 bullets what is your exact method? Thanks in advance.
Wayne

Well you take a 220 russian and load a 22cal bullet in it then fire it. On a dasher and brx i use the false shoulder method with a light 6mm bullet

 

[bozo699]

Well you take a 220 russian and load a 22cal bullet in it then fire it. On a dasher and brx i use the false shoulder method with a light 6mm bullet

oh you were talking ppc sorry yes I use same for brx as you do!... I’ve use about every method but I turn my necks, false shoulder and kill lots of ground hogs ff my competition brass. Thank you.
Wayne