New .30 RAR cartridge by Remington.

F

frwillia

Guest
I saw the .30 RAR in an article today. It is sort of like a fat .30BR on steroids. It has a rebated case with .473" bolt face and 0.5" brass OD at the base.

In fact I used the .30BR as a basis in QL, renamed it .30RAR, changed the water grain capacity to 44g from the article, the brass length to 1.53" from the Remington WEB page, and COAL to 2.62" per the REM WEB page into QL to do some preliminary modeling of it's performance with a 125g Berger Bullet.

I ended up getting it to the advertised 2,800 fps with no problem. It might be a fun cartridge to play with once some good brass is available.

Fitch
 
It's based on the 450 Bushmaster which was based on the (RAW UNCUT) 50AE case.IMHO the only thing it does is put a 30 cal in a AR 15 platform instead of a AR 25. The boltface reminds me of a 416 Rigby bolt face cut on a standard 700 Rem bolt a little thin IMO. I saw the pics of the different bolts
 
i think both the .450 bushmaster & the 30rar are actually based on the .284 case. the 50beowolf was based on the 50AE case with a .223 sized rim.
 
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