The body is not a perfect thermal insulator so you must note that the liquid in the bladder is constantly losing heat due to dissipation into the surrounding tissues then the environment around the body. The greater the temperature differential between the body and the environment, the faster the rate of transfer. Your body won’t (or at least it’ll try its damndest) to not let that internal temp drop, which will take more and more energy to maintain as the external temp drops.

UK Rifle

WVU Rifle

University of Memphis Rifle

Ohio State Rifle

Akron Rifle

And quite a few more!

Army, Navy, Air Force academies each have their own D1 rifle programs as well.

Oh! I actually can personally answer this one. I’ve been a competitive air gun and rimfire .22 LR for years and even attended college on a rifle program scholarship at a D1 program (yes! The US has a major collegiate rifle program)

Traveling internationally depended much on where you were going. We competed at the international junior Olympic championships just outside of London one year in the UK. We had to package all ammo and firearms separately, in locked containers which ultimately wasn’t that big a deal. As with flying with firearms in the US, it ultimately comes down to how familiar those such as gate agents and check-in staff are at the airport with their country’s firearm travel laws. Flying out of the US was always easy as they’re used to firearms, but flying back to the US was sometimes a nightmare and we’d get to the airport up to 6 hours before a flight to deal with any BS.

Still doesn’t change the direction when it’s a single shooter 🤷