I've had similar experiences with American whitetail.
From a 7-08 all shots 35-50 yards no exit hole no bullet recovered. Like a grenade going off inside the deer.
On the plus side all four deer dropped right where they were standing.
I've since switched to fusion and have had much better bullet performance in similar situations. Although the deer usually don't get knocked down immediately. They travel further before dropping. No more than 25 yards which I feel is acceptable.
From a 7-08 all shots 35-50 yards no exit hole no bullet recovered. Like a grenade going off inside the deer.
On the plus side all four deer dropped right where they were standing.
I've since switched to fusion and have had much better bullet performance in similar situations. Although the deer usually don't get knocked down immediately. They travel further before dropping. No more than 25 yards which I feel is acceptable.