I load a fair amount of .223. Most is for a bolt action rifle; none of it do I crimp. But what about use in an AR-15? Should that be at the very least, taper crimped? I've noticed that only Redding makes a factory taper crimp die for .223. I'm assuming that it would be compatible with a Lee single stage press and I've been thinking of getting one. Would I be wasting my time and money?