One of the other guys going with me shoots the same ammo from his 300 win mag. Between us we will have 40 rounds. There won't be an opportunity to check the rifle after we fly in unless we do it from camp and risk scaring caribou. I really don't like that, I much prefer to shoot the rifle after I get to where I'm going, but it's not an option here. I have a good scope and mounts that I have never had an issue with. If one of us has a rifle problem, we will have 3 rifles in camp. We will share the ones that work at that point.
We will have two 300 win mags shooting the Nosler factory 180gr E tip ammo, and one 7mm Rem Mag shooting 160gr Accubonds in Nosler factory ammo in camp.
pretty good list .can't think off hand what you might be missing.
smart thinking to bring same calibers . I like to do this also when ON backpacking trips with a friend.
if worried about weight ,I would lose the cots and just go with the therm pads. lose the yukon rain pants ,just go with the chugach. might not be ideal fit but will serve their purpose with either pants underneath. I would lose the pee bottles (for me that is just a comfort item I likely wouldn't need anyhow). don't know your night peeing habits, so that is your call.
clothes is one thing folks generally bring to much of (looks like you are well set with gloves ,undies and socks). generally speaking, I wouldn't bring more then one change of cloths if worried about weight but when it is cold and wet, it is a tough call on what to leave home also.
just noticed the dates . how did the hunt go?