I changed a barrel in less than 5 min once at the range just to shut a guy up, "Oh I see you have a Savage that's nice"
This was 20 some odd years ago back when Savages were considered "blue collar" I am not knocking them but they did have that stigma for a long time for those who are old enough. He had a Rem custom shop that everyone was having an orgasm over "That Daddy bought" anyway I ran out of 22-250 ammo and was switching over to my 308 barrel so I could continue shooting, And did it in less than 5 min when I finally looked up I had a crowd watching me then one guy said hey you just changed barrels in less that 5 min, I said I know I do it all the time so I did a demo back to the 22-250 and then once again to the 308, and explaind what I was doing at the same time. I stole MR custom shops thunder he was not happy, me that made my day and chuckled about it the rest of the day.
Dean
PS: Maybe it's just me, but I would never knock another guys rig I was brought up better than that.