More properly, it is handfle ammo made mostly for single shots like your gun. Check Hornady reloading manual, I think I saw it in there. Otherwise you might contact TC and see what direction they can provide. http://www.tcarms.com
Winter is tough on whitetails, that is an accepted fact.
You can help the quality of your herd by providing winter plots - that are not necessarily designed as kill plots.
Having what I call green plots - that the deer can browse in when most of the other food is gone, can greatly benefit the deer herd when they need it most.
Come December - at least in our area of the south - most of the mast is gone, all of the crops were long harvested and this green browse can really make the difference for...