Anyone using this projectile?

Have been shooting it in 325 WSM as I have worked up a nice accurate load, I've shot one Sambar deer with it so far (high spine shot) and it worked flawless.

Shot another one today, Sambar hind at approx 140 meters and I watched her tumble down the hill into the creek gully, only to get up and keep running. I tracked for over an hour with no success.

Not blaming the bullet, surely poor placement on my behalf, but made me wonder if anyone has any experience with these bullets and what you think? I am wondering how they would hold up if they hit heavy bone, and can I depend on them for quartering away and raking shots?

Thanks


You only live once.