243 AI-Any Input?

[PathFinder]

Ordered the dies and rented the reamers, so it's happening. Will post some pictures and updates when the tools show up.

 

[pods8 (Rugged Stitching)]

You gonna give it a tweaked name like 243Aish?

 

[Castle Rock]

Better to just strike it out if it’s going to be non standard

 

[pods8 (Rugged Stitching)]

Better to just strike it out if it’s going to be non standard

I was trying to be puny

 

[PathFinder]

You gonna give it a tweaked name like 243Aish?

Ha I should probably, it will depend on how much deeper the chamber ends up being. This chamber feels like it may be a hair on the short side, so the AI no-go may still no-go.
I'm going to leave the chamber markings so there's no issue checking into South Africa with some 243 win headstamped brass.

 

[Castle Rock]

Consider carefully before you use an Ackley head space gauge.
I made that mistake once on my first 22/250 Ackley and the chamber ended up much too long for the currently available brass.
I would use your die formed brass to set the headspace and you’ll never have that problem, either with brass or dies being incompatible

 

[satchamo]

I’m gonna sound stupid here but you’re telling me you can just get a 243ai reamer and just hand ream a 243 to an AI??

 

[HandgunHTR]

Ha I should probably, it will depend on how much deeper the chamber ends up being. This chamber feels like it may be a hair on the short side, so the AI no-go may still no-go.
I'm going to leave the chamber markings so there's no issue checking into South Africa with some 243 win headstamped brass.

Just an FYI, but the AI no-go is just a regular go-gauge for the standard cartridge.

The reason for that is so that you get a slight crush fit on the shoulders when shooting standard factory ammo in the AI chamber, thereby preventing case head separation.

Since your chamber is going to be long, the gauges for the AI won't do you any good.