243 Win vs AI

[Luke45]

Handi I've taken a parent cartridge and threaded the barrel down sung on it( Firesign pin removed) then tested with the parent case, if closing the e bolt gives a little resistance (crush fit) on the brass and then swap in a parent go gauge and it won't close your good to go

[Luke45]

Then any time you need to barrel swap just use a fire formed case to re headspace

[handirifle]

Handi I've taken a parent cartridge and threaded the barrel down sung on it( Firesign pin removed) then tested with the parent case, if closing the e bolt gives a little resistance (crush fit) on the brass and then swap in a parent go gauge and it won't close your good to go

So, are you saying use an unfired cartridge?

[handirifle]

What about reaming, done by DIY or a smith?

[GaCop]

How does that work. Neck size only? This is for a hunting rifle and am a little concerned with feeding issues. Correct, The Lee collet die only neck sizes. In a standard chamber, not tight match dimensions, you may not need to full length size the 243 AI cases for four or five loadings

[Luke45]

So, are you saying use an unfired cartridge?
yes a live round, or a peice of brass of the type you will be using. and what do you mean on reaming? id hope i wouldnt do a DIY reaming job!!!! ;)

[handirifle]

Yea that was what I was asking. I know some have done their own reaming but mostly rimmed cartridges. If I go AI I guess it will be with a different barrel.
thanks