I had the hots for a T1x when they were first announced, but couldn't find one at any of the wholesale/jobber outfits that I usually order from. At that time(March 2019), Lipsey's had plenty of CZ's 457s - with the exception of the MTR, which is what I really wanted - but I went ahead and bought a couple of 457 Americans and a 457 Varmint. I kept the American with the nicest stock for myself, and put the other two up for sale. Even though I was very pleased with the appearance, features, and reliability of the American, accuracy was poor enough so that I decided to order in a Shilen blank and re-barrel it. That done, I believe it'll be a cold day in *ell before I sell it. I did manage to find a Varmint MTR several months later, and accuracy out of its tightly chambered bbl was pretty decent. Next, I bought a 457 Varmint Precision Trainer with the Manners PRS1T stock, but ran into some accuracy issues with that 24" bbl. After I'd put around 500rds through that barrel, accuracy improved a bit - it was actually acceptable at 50yds. But when I tested it at 100 & 200yds, it fell apart - wasn't able to keep 10rds of a good lot of SK LR Match on an 8" steel plate at 200 on a fairly calm day. So out came the credit card, and another Shilen blank was ordered.
I don't know if two out of three OEM bbls giving sub-par accuracy is typical of the hammer forged CZ bbls or not, but I've read a lot of posts on the Tikka T1x here and on RFC & Snipers Hide, and very few owners posted complaints about accuracy. Sure, some of them said it took a few hundred rounds before accuracy came around, but considering how many rounds of SK Std+ & Rifle Match that I put through the two CZ barrels that I replaced before I gave up on them, I seriously doubt they were ever going to improve to the point where I'd have been satisfied with either of them. At this point in time, having a Zermatt Rim-X, three V-22s, and the two 457s with Shilen bbls, I really don't have much interest in buying a Tikka T1x. But even given how impressed & happy I've been with the features, function, accuracy and appearance of my re-barreled CZ 457s, it'd be hard for me to advise a friend to buy one of them vs a Tikka T1x.