Though many 450 Bushmaster magazines (sometimes with slight tweaks to feed lips and/or follower) often work. The 30 RAR also uses a very funky magazine, it only feeds from the left side and thus the modified bolt lug. 450 Bushmaster at 55 ksi like 30 RAR would be a nice step up from the 38.5 ksi 450BM os currently is loaded too. Imagine the extra performance you could get from 450 bushmaster if they has used a 30 RAR bolt. One bottom lug is truncated to facilitate feeding. The 30 RAR uses a bolt and barrel extension that is basically a slightly modified LR-308 bolt. Left to right: 30 RAR, 450 Bushmaster, 556. The bolt carrier and charging handle are standard.

The upper receiver, barrel extension, and bolt are all proprietary. Though the 30 RAR works with a standard AR-15 lower nearly everything about the upper is proprietor. 150gr Core-Lokt works just fine on those critters and I suspect will do just fine on the deer too.

I have not shot a deer with it yet but it did bad things to the Bobcat and Armadillo I did shoot this season. Hodgdon has data for 110gr to 160gr bullets.ĥ shot group 100 yards. I will be interested to see what I get when I start handloading it. I am currently shooting old 150 gr factory ammo. Built from a combination of new-old parts, used parts and scrap parts, all in or headed to a scrape bin somewhere, very little money invested in this thing. I built this in early 2020, and hunted with it all last season. I have what I believe is one of the last 30 RAR assembled.

Clone 5 rar