Hi,
I used the 180 grain Oryx in my 308 when they first came out, but then I started to use the 150 grain TSX instead.
Results with the 180 grain Oryx at 2650 was pretty good, I shot 4-5 mooses and a couple of good sized boars with it without any problems. Usually it will not exit on a full sized moose or a big boar but all the game shot with it went down anyway.
My brother has been using it at 2700 since they where released and since he's a more practical guy he has no intention to fix stuff that ain't broken
Anyway, I believe that he has harvested at least 30 mooses with it and so far with complete satisfaction.
It has been one of the easiest bullets to get godd accuracy from that I have tried (that goes for the 6.5 and 9.3 versions as well which are also really easy to load).
To summarize my experience with the 180 grain oryx I would say that;
1. Based on bullets found in game they will expand to about 2.5 times the original diameter (goes for all versions that I have tried (156 gr in .264, 180 gr in .308, 196 gr in .323 and 232 and 285 grain in .366)
2. penetration is limited but the remaining weight is around 85-90 %. The bullet thet we have fund that lost the most still weighed 78%
3. Accuracy is generally really good, it will shot up to the rifles potential most of the time.
4. I would not recommend these bullets if you want to push them at 2800 or more because of som efailures that we have seen at higher velocities.
5. We have seen some cases where they did not penetrate in a straight line, but changed direction when they hit heavy bone. These observations where with 180 grains .308 and 232 grain .366 bullets that will almost look like a ball after expansion due to their short length.
I have tried Interbond 180 grain in my 308 win and the 85 grain version in my 6x45 but I've never been able to get to shoot as accurately is I wanted. The shot around 2" groups in guns that normally shot sub MOA and since they did not offer anything else that was not already on the table I've not used them on game.
Best Regards,
Henrik