All Weather Arms?

Anybody know anything about them? http://allweatherarms.com/main.sc
They have an interesting offer for 300 AAC Blackout brass conversion.
http://allweatherarms.com/Processing-300-AAC-Blackout-Conversion_c3.htm
I have an email off to them for the cost of converting their once fired, processed LC brass to 300blk.
This could make a 300blk a reasonable upper.
Is there a reasonable bullet for the 300blk akin to the Hornady 55gr .223 (cheap and (reasonably) accurate?
I think I am getting very interested in this caliber.