I’m trying hard to avoid reloading, because its really not feasible for me right now.

I’ve landed on the idea that I’d like to try 100gr TTSX for hunting with my 12.5” Grendel, but I’m having a surprisingly hard time finding factory ammo. All I’ve found is “Precision Firearms” and “Hendershots Extreme Custom Ammo”. I’ve never heard of either. Does anyone have any experience with these, or know of another source? Perhaps there is a good reason nobody seems to be loading this projectile?