I was able to use a 458 socom my Mule deer hunt this year. It was not my gun but the owner was on the hunt with us. It suppressed pretty well and had a good amount of short range power.
In the end we never even saw a single deer but I did manage to shoot it as some mettle after the hunt was over.
We measured his loads at 1060 (or there about) This subsonic round has over 1000 foot pounds at 100 yards. Not bad for a subsonic bullet!
"I ask, Sir, What is the militia?" "Its the whole of the people. To disarm the people is the best and most effectual way to enslave them" -George Mason Co-Author of the second amendment.