Congrats on a great bull. You did the tag justice with the time put you in. When I had the tag in 2021 I killed my bull just below where it looks like you were. I used the same strategy many days, dropping in on the top of them. I had the whole unit cow tag there this year. As luck would have it...
300 WSM is a short action and you can run a shorter barrel. Smaller gun overall, idea being a backcountry gun. Not trying to go ultra ultra light, Rifle with scope and suppressor would come in around 9.5lbs. If I went 300 Win mag i'd have to run a 2 - 4" longer barrel.
Basically looking to build a rifle that I can trust a bit more on elk than the 6.5 PRC. In the last few years myself and a few friends have taken quite a few elk with the 6.5 PRC. It does the job but not in the same way as elk Ive seen taken with a 300 Win Mag. Originally had thought 300 Win Mag...