Fire forming with a crf actuon

[grouse]

Hi. I'm interested in fire forming some brass using a false shoulder. I wonder if a crf action will allow you to fire form without creating the false shoulder? Since the controlled round will hold it against the bolt face? Thoughts?

 

[Carlos88]

Need to have the false shoulder. Not enough tension or strength to hold the case in position.

 

[Mikecr]

Cases held against a bolt face is ideal for fire forming. Nothing to 'fix'.
If anything, it's normal bolts that may need false shouldering.

 

[L.Sherm]

There is no "need" to have a false shoulder. If an AI cartridge is set up properly you already have .004 crush but I use .004 neck tension and put them into the lands about .020 just because cant hurt.
I've fireformed probably 1000+ non - AI without false shoulder and haven't lost a case just .004 nk tension and into the lands .020
As long as your tight against the boltface i don't see any reason why the
Boltface matters

 

[grouse]

Cases held against a bolt face is ideal for fire forming. Nothing to 'fix'.
If anything, it's normal bolts that may need false shouldering.

So you think a crf will do the trick without a false shoulder or jamming a bullet into the lands?

 

[Mikecr]

So you think a crf will do the trick without a false shoulder or jamming a bullet into the lands?

Depends on how tightly the boltface/extractor hold the case head.
Some CRF w/standing blade ejection systems do not hold cases tightly against the bolt face, because the case does have to eject.
Check it on the bench

 

[Outlaw6.0]

I've fire formed quite a bit of 6.5-06AI brass using the cream of wheat method in a Mauser action. No false shoulder & obviously no bullet, haven't lost a case yet.... YMMV



t

 

[Pdvdh]

So you think a crf will do the trick without a false shoulder or jamming a bullet into the lands?

No