It sure is. The only downside is how it costs me around $5 every time I pull the trigger. Reloading is essential in ownership of such a beast. an older vid of me with my Barrrett 50. http://www.youtube.com/watch?v=R_gkeH1xsao&feature=g-upl
I don't know how safe it is to reload a .50. It's one thing with the smaller calibers, but with so much gas and such a thin case you are asking for problems in my humble and somewhat inexperienced opinion on that subject.
I think if you are getting shot at a bulletproof case for your iphone is the last thing you should be concerned about
Well a buddy of mine works on the side at a wolf sanctuary and this case may actually work for him. The wolves can tear an otter box to pieces but may not damage this.
That's an AP round and the last time I checked, all those are illegal here in the US. I know certain states here ban .50 out right for civilian use anyways, as mine is one of those. That's why my rifle is chambered in the .416