I just picked up a sweet lower from someone on the EE (great transaction with RUGBY)  and Since I only have one Bushy (forged) I dont have experience with cast lowers.  I read the Olyarms thing and all points to forged, but I am not sure since that onyl seems to pertain to the Oly lowers.  The one thing that makes me think it is cast is that there is a line about 1/8 inch wide running down the center inside the trigger guard.  The only reason I even care which it is, is because I am going to put one of the lowers on my .50 Beowulf and thought a cast lower would not hold up as well.  anyone want to steer me in the right direction or discount my fears? Thanks

RRA Forged

Thank you for that info.  that is what I like to hear. :)