I've shot a lot of Wolf ammo over the past few years and I've read a lot of threads concerning problems with Wolf.  

I've heard it said that Wolf was meant for the AK action and western brass cased ammo for the AR action.  

That being said...

What is the difference between a casehead seperation in my SAIGA .223 as oppossed to one of my AR's?

Has anyone ever seen or experienced a casehead seperation (any caliber) in an AK series rifle?  

Why would Wolf be safer in my Saiga than in my Bushmaster?

Thank you in advance,
PINGi3

P.S.  Feel free to be as technical as possible.