Clarification on some info on factory loads

[Gloria]

When I chose to go with 6.8 for my AR15 conversion, I picked it because of it's ballistics over 6.5 and the articles I read. However, a lot of that info was unfortunately out of date and I didn't realize just how difficult it would be to find ammo for it. I don't reload, and I never really intended to reload either.

My local stores offer only 2 different non-FMJ factory loads: Hornady 100gr CX and 120gr SST
Online I can find the same plus: Winchester 115gr XP and Remington 115gr HPBT

I spent several hours reading some of the big performance threads on here about the 100 CX and saw some pros and cons for that as well as the SST. I'd like to ask which round would be best assuming I need a factory load for my specific situation. (The threads on the other 2 rounds were less than pleased)

My rifle is a PSA 18" barrel with a 1:11 twist. I built this rifle exclusively for whitetail and hog hunts. When I talked with some local hunters I know plus my own personal, but also novice experience, the majority of shots taken were between 50-150 yards with the 75-100 yard range making up the vast majority of them.

When I read about the 100CX, the positive points are that it's a copper bullet that doesn't shed much weight and is pretty accurate. The negative side talks about how it has no expansion past 150 yards. When people talk about the 120SST, it has a lot of reviews and positive things said about its fragmentation and plenty of pictures of kills with it. However, I've also heard that used in a negative way, with people talking about how it's like shooting a grenade and the bullet basically explodes, risking damaged meat.

My question is a two parter:
1. Assuming my current barrel, plus that it will only be used on whitetail and maybe hogs, and that I do not intend to take shots past 150 yards (100 yard average), could I be happy with the 100CX? I've seen the thread on clipping the tip to boost is expansion. I would rather try to use it factory setup.

2. Assuming I need to use the 120SST, is the consensus on the fragmentation a positive or negative? I like to think I'm not the type of person to cause waste by destroying excess meat without a perfect shot placement. Probably one of my biggest concerns when I got into hunting was a bullet exploding and risking lead ending up in something I plan to eat. That's why I liked the idea of the CX and its copper bullet that might fragment less.

Maybe I'm overthinking this, I've shot rifles most of my life, but it was my first actual hunting season this year. I'd just like some feedback.