20 Nosler
 

I just ordered a reamer and go gage from PTG this morning. Since I have several thousand 55gr Bergers I'm going use a 9 twist Hart that I've had setting in the closet for over a year now. I have very good accuracy in a 20 practical using this twist. I'm getting 3275 out of the practical and hope to get 3450 or 3500 out of the Nosler. Any thoughts ?

Hadn't heard of a 20 Nosler. What is the parent case?

22 Nosler. You just neck it down like you do for a 20 Practical.

.. always thought the 20 cal version was a better idea than the 22, and that a 6mm version would be better still.
what are you thinking for dies?

Ah ok. Don't know what the 22 Nosler is based on either. Just neck it down? No moving the shoulder or trimming down?

It is my understanding that they are based on the Ruger 375 case.

Lowell

Google it up a wealth of info on it and how it is made, etc. Bill K :)

Nosler used the 404 Jeffery case for it's series of rounds. Trimming down the base/rim for the 20 Nosler. Bill K :)

Move away from the 2.260" OAL AR mag restriction and its a solution without a problem.

Isn't the parent case the quickly forgotten 30 AR Remmy?

I thought the 30AR was the first rebated rim .378" bolt face/ .44x class base diameter production case design?

BTW we've been hearing about this awesome soon to be released 20 Nosler WITH DIMENSIONS LEAKED for two plus years now. Where is it?

https://saami.org/wp-content/uploads...rawing-New.pdf

On SAAMI's website, not forum BS.

I'm using a Redding FL S-type 22 Nosler die, replaced the decapping rod assembly with a 204 Ruger and using a .250, .245, .240, .235, .230 and lastely a .229 bushing I'm getting the neck tention I want and excellant concentricity. For a seater, Redding makes a 20 Nosler seater die but I also bought the Hornady straight line seater in the 22 Nosler which will work perfect, I also think it's comparible to the Vickerman.