I have shot quite a few of the 165g Interbong in a 300 Win Mag.
At our local 300yd range they are consistant .6-.7moa. I went to a friends ranch to get long range zeros and they performed incredibly consistant out to 1200yds.
I used this ammo the past two years in So Africa. This year a good Kudu bull was shot at 450yds, fell and after a struggle regained his feet. Shot again at 475yds and he was down. Both shots through vitals within a few inches of each other. Massive damage to heart and lungs, one bullet found under the skin on far side, other exited.
Gemsbok, Hartebeest and Springbok were shot from 100 to 450yds in the Kalahari later in the week. Every bullet was a great performer.
So yes, they come highly recommended.
Many thanks for your input sir. Sounds like a fun hunting trip as well. Do you have any pictures?