remington new rar 30 cal

Mr Gee

ok i'm always the last to find out things .... having trouble finding info on the new remington 30 Ar-

first is this the same as .30 Br..?

how would this Ar-30 cartridge do in a bolt action plate form ?

what i'd really like to know is can i buy unload brass, if so where ?

thanks for any help

nononsense

Mr Gee,

The 30 Remington AR is based loosely on the original .450 Bushmaster case. The 450 Bushmaster is the .284 Winchester shortened and sized to take the 0.452" diameter bullets.

The difference now is the current rim diameter of the 30 RAR has been enlarged to 0.492" from the original 0.473" diameter.

This article has the correct dimensions for the cartridge case:

http://www.rifleshootermag.com/ammunition/RS_30remingtonar_200904/

This has the developmental data but the rim dimensions is incorrect:

http://accurateshooter.wordpress.com/2008/10/15/remington-introduces-new-30-remington-ar-cartridge/

This article has information about the 450 Bushmaster:

http://www.nrapublications.org/si/bigbite.html

Brass may be available through Remington as components. You should check their website to confirm or give them a call.

Best.

Mr Gee

nononsense... thanks for the info was hoping it was more like a 6..... 30Br

i have a project barrel for a switch barrel reciever
i'd rather not open the bolt face

thanks..[:)]

nononsense

Mr Gee,

You could go back to the original design which used the .284 Winchester cases cut down. These cases used the same rim diameter as the 6mmBR (0.473"). Dies are not affected since there is no impact on the rim.

Best.

Mr Gee

thanks... but i think its a lot of work probably take 8-9-10 steps to conver
with all that i mite as well convert 6br to 30br

thanks for the input

be well[:)]

edit: on another thought you could maybe turn the rim on the 'rar'

nononsense

Mr Gee,

Correct!

That would the easiest by far.

Best.

MFI

So this cartridge is different from the old 30 Remington used in the old pump 760's then ?

Mr Gee

Oh..Way it resembles a .308x 1.5..

1KYDSTR

Ah, someone else who likes Mr. Barnes' creation! Funny how the "1.5 got lost in the mix over the years!