I just read this article and it may explain what happened to you, its possible that was a fragment that exited the other side.
"High velocity is not however a sole factor to be worshipped and held above other factors. For example, if velocity is increased too far without increasing bullet...
For the Berger fans
https://www.brownells.com/reloading/bullets/rifle-bullets/6-5mm-0-264-156gr-hybrid-boat-tail-100-box-sku749018400-122971-225007.aspx
Keep in mind some of those light weight Ti cans are not designed for high rates of fire from a semi auto, make sure you check the ratings from manufacturer.
I have all Silencer co so the mounts are the same, though now you can use the same mounts across most manufacturers (I’ve heard dead air...