To all: Thanks to all for the information. - Yes, I shoot reasonably well, with a degree of accuracy, and Africa is in my plans for the rifle I finally select. If I can get a reliable double .470NE that will consistently print ~1" at 100 yards (with quality Federal factory ammunition), I will have my ideal rifle. I still have questions in my mind about the Blaser...

"500 grain" you said, The design is antithetical to quick action in a DG hunting situation and reloading and recocking are SLOOOOOOOOOOWWWWWW...................

Could you please elaborate on the problems you have had with reloading and "re-cocking". - - Thanks.