Newark was a piece of cake to go thru, a TSA agent met you they got your guns too you to a dedicated customs agent with all the hunters coming back and I was sweating bullets because of my suppressor but all he wanted to see was the serial number on my rifle, then we were taken by the TSA person to check in and a couple guys had a very short time period to make a flight and he had it done for them quickly and off we went to go thru TSA check for baggage pain in the butt there. a word of caution one of our guys had an empty cartridge case drop into his pack unnoticed and TSA in SA was all over him we did not know if they were going to take him away it took 30-45 min for him to clear. with United you can also have your ammo in your rifle case but I think Delta it has to be in a locked case in your checked bag so look closely TSA did not care