Can a 1300 fps airgun kill a deer?

If you are talking about a .177 caliber pellet. Most likely the answer is NO. But if you are talking about a 45 caliber or 50 caliber pellet then the answer is Yes. Pellet guns come in .177, .20, .22, .25, 9MM, 45 cal and 50 Caliber. The last 3 sizes are fired by PCP air rifles (Recharged pneumatic ) that require a Scuba tank to charge them to 3000 PSI. They are still pellet rifles just the BIG BOY of pellet rifles.