I think maybe I need to reformulate my question and clarify some of the things I'm looking for and see if that changes anyone's opinion on which way I should go. After doing a TON more reading, I've noticed a few things that come up consistently in conversations between the .243 Win and the 6 Creed.
The first thing, and the one that I think has me the most stuck on choosing, is either cartridges ability to shoot long, heavy, high BC bullets. The 6 creed is designed specifically for it and if you build a fast twist .243 it'll do it all the same. For me, the longest, heaviest bullet I'm interested in shooting for this build is the 80gr. TTSX for deer (maybe the 95gr. LRX, but still not really long, or heavy). Everything else will be lighter bullets for coyotes, bobcats, fox, etc. Stuff in the 55-70gr. range more than likely.
I know the .243 is well suited for this and will also handle the mono's I want to shoot for deer. My main question is from the other side of how people normally talk about the 6 creed. I want to know how it handles smaller, lighter varmint bullets. Seeing as how that cartridge was designed with more headroom in the chamber to support those long heavy bullets and not effect powder capacity, am I going to have accuracy issues with short little light varmint bullets having to make a big jump into the lands? Or is this not an issue? I think this is the deciding factor for me, but the info is hard to come by because all people talk about when it comes to the 6 creed is the long heavy bullets it can handle. Which makes perfect sense, but for my use, I want to make sure it'll handle light short varmint bullets just as well as the .243. It would only be a likely never used but none the less appreciated fact of the 6 creed that I would have the option to load the over 100gr. high BC projectiles. I don't really see myself doing it, but I appreciate options.
Second thing, and far less of an issue, is factory ammo availability. No matter which cartridge I end up going with, I'm going to be reloading for it, so I'm not overly concerned with factory ammo availability, although I would put it in somewhat of a plus column. Alot of the threads I was reading were a little older so 6 creed ammo I don't think was quite as available then so maybe this is moot point in 2025. I just wanted to make sure it was stated that I'll be reloading this cartridge from the start.
Anyway, I hope you 6 creed guys might be able to provide some experience with the light varmint bullets (some already have) as I think that might tip the scales on which way I go.
Appreciate any input you guys and gals can offer. Shoot straight.