So a few months ago I visited my cousin in Colorado, and we went out to the mountains to shoot some of his guns. He was a sniper in the military and served in Iraq for quite some time. He first deployed in 2006, IIRC. Anyways, we loaded up a Remington 700 custom (sniper), Saiga 12ga shotgun with bulpup conversion, AK-47, Ruger 10-22, and a Glock 19. We drove and parked by a canyon near a remote highway, then walked a bit into it. We set up some targets that were already there.
Glock 19:
My first experience with this was when my cousin fired it loudly by my ear before I put the ear muffs on, and I could definitely hear a loud ringing sound after, just like a video game. It went away after a minute fortunately, but I was still bothered. Anyways it was damn hard to aim this! It's surprisingly difficult to hit something that isn't next to you. A chipmunk ran by, and my cousin yelled at me to shoot it, so I obliged but missed every shot. Also the recoil threw off my aim each shot. I wonder if it's possible to hold it such that it re-aims itself after every shot.
Remington 700 custom (sniper):
This was really fun to shoot, and very loud. Bolt action. I'm not sure how good my accuracy was though.
Saiga 12ga shotgun:
This is a semi-auto shotgun that shoots every time you pull the trigger. It's quite a beast actually. For some reason I was scared the recoil would make it smack me in the face, so I didn't fire it in quick succession (to the disappointment of my cousin). I could see it being great for close quarters combat though.
Ruger 10-22:
Possibly my favorite gun to shoot, because I could actually hit targets that were decently far away (100 yards or so). It's only .22 caliber and a bit of a pea shooter, but it's scoped and I could even stuff while standing up, and even firing quickly. It's semi-auto. My accuracy impressed my cousin quite a bit.
AK-47:
Really fun to shoot, and it had quite a large recoil. It was very difficult for me to accurately hit things through the iron sights, and had to re-aim it after every shot.
General notes:
1. Guns are even more fun than I expected, and much more fun than the air rifle I used to own.
2. Scopes apparently require you to be an exact eye distance away from them, and I had to keep shifting my body to look through them properly.
3. My cousin for whatever reason has a blatant disregard towards gun safety... but I don't want to delve too much into this topic
4. I can understand now why so many soldiers and police historically couldn't hit jack **** in battle and wasted tons of ammunition