This is the kind of stuff that freaks me out a little about this bullet, however:
http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=702161There's (15) reviews of it there. Lots of core seperations and a couple poor expansions.
But, I do come back around to this: I'm killing relatively small DEER here. As long as it does expand, I'm golden... I think.
-jeff