I am ordering my usual quarterly ammo stock. I came across some Blazer brass 230Gr FMJ but it is aluminum cased. Is this safe to shoot in our 1911's? It pretty cheap at like $13.95 p/50 rd box. I also found a decent supply of my Ranger T's in 230 but they only have +P its the RA45TP model. I have only used the RA45T before and its my Springers all favorite food. Can I use the +P ? its $ 33 p/50 rd box.