start
Hard to tell for a few with the background as it is. A white paper would be a help.
Anyhoo....let's give it a start.
l to r.
.17HMR, .44 S&W Magnum, .223/5.56, 7.62X39, .500 S&W magnum, .243 Win., .308 Win., One of the .30 caliber short magnums, .270 Win., .30-06 Springfield,....hard to see the necks on the last two. I am assuming another caliber increase and so .338-06, .338 Win. Mag. (hedging here....could be one of the .30 cal Ultra mags on the end...but the diameter appears larger than .308)
My best guesses right now.
Pete