Well "A" is for Antelope in Alberta. The animal is more properly called a Pronghorn (though you have to draw and buy an "Antelope" licence to hunt one) It is not really related to the antelope of Africa but is the only species in its family and is found (family and species) only in North America.
My daughter shot this buck last year. He is not a big trophy by any means but her first buck and we had a very enjoyable hunt.
The rifle is a Rem. model 788 in .243 Win.
Robin in Rocky