Good Hunting!
The biggest advantage of muzzleloader season in NH is that the deer are calm and have not altered their feeding and bedding habits.
As regular firearm season approaches deer find places to hunker down and are more warry. The other big advantage of muzzleloader season is that does are coming into estrous and bucks are moving more. Stay warm. Dress in layers. I carry a small day backpack. Have my license, a pen, a sharp knife, drag rope, first aid kit, hand warmers, water and snacks and a phone or communications device.
I tell family specifically where I am hunting. Perhaps you should too!
If in camo, I wear an item of orange like a hat or camo orange vest. Deer don’t see orange, but people do. Deer see movement!
I enjoy cooking and eating my venison, and thus gut my deer asap after tagging, and open the cavity to cool it as soon as possible to preserve that meat quality. I do not hang my deer more than a day or so before cutting. I like to vacuum seal my meat or burger. It will last for a few years in a freezer and over time will often lose more wild taste and even tenderize some cuts. I have begun pressure canning too and it tenderizes the toughest cuts.
See you out there!