I want to clarify something real quick. Hevi shot has shells made just for yote hunting and cost more. You can find other T Shot that isn't game specific. You should be fine with BB.

Just some advice. You may have to move around several times calling before you get action. Limiting yourself just to a stand may not yield anything and you may get dicouraged. Stick to river bottoms, thickets, field edges. I suggest buying a video Calling All Coyotes, Vol. 1, 2. You will learn a bunch from them. Thats how I started.