Yes, You can openly carry a firearm in Kentucky without a CCDW. Must not be concealed, and if in a vehicle, it must be in the glovebox, not the center console.
You will have to define "sniper rifle". There is no meaning to that term, other than an accurate scope mounted rifle. That includes most hunting rifles.
It is legal if you have permits for the gun and only in certain areas.
Automatic weapons are prohibited in every state. You can have a semi-automatic rifle though.
Rifles and shotguns are separate types of firearm. The Kentucky Long-Rifle was as its name implies a rifle, not a shotgun.
Kentucky Rifle - 1955 is rated/received certificates of: Iceland:16 Norway:12
1-in-66" barrel twist is a Kentucky rifle, not a Hawken. The Hawken brothers used a lot faster twist than that; you needed it for the prairies. Googling "Kentucky Rifle kits" will give you several makers of these rifles in kit form. As to legality for hunting? Any muzzle loading rifle that's at least 50 caliber is legal to hunt with in Idaho.
Yes. The firearm laws relating to concealed weapons do not apply to rifles- they are not considered concealable.
The address of the Kentucky Rifle Foundation is: 17 Odin Ct, Columbia, SC 29229-6510
the Kentucky LongRifle
The Kentucky Long-Rifle is known alternatively as the Pennsylvania Long-Rifle, and the American Long-Rifle. Being from the Commonwealth of Kentucly the author of this answer asserts that Kentucky Long-Rifle is the one and true proper name. Now, as to the meat of the question. This long pattern of rifle first appeared in Pennsylvania as a product of German immigrants to the American Colonies. Due to its capabilities the gun rapidly proliferated from there. This type of firearm came to be known as the 'Kentucky Long-Rifle' in later years for a number of reasons. The most important of which would be that in colonial times the men of Kentucky had a reputation not only as hunters; but as Sharpshooters wielding this distinctive family of long-rifles.
You will have to define the term "Sniper rifle". It could mean anything. The only TRUE sniper rifle is a rifle issued to a sniper. They are simply rifles that are capable of long range accurate shooting. The rifles used by US military snipers during the Vietnam was were simply civilian hunting rifles with decent telescopes.
You need to tell us which rifle. Chances are that there is some legal way to own it.