FN SPR sniper rifles have chrome lined barrels, and I have never heard anyone complain about their accuracy. Got the info below from Sniper Central 2014 review of an FNH SPR A3.

"One interesting feature that is not found on most other precision rifles is that the bore is chrome-lined. It is generally accepted that chrome-lining a barrel, unless done correctly, can negatively affect the accuracy of the barrel. FN claims that they have the process mastered, and the .5 MOA requirement seems to confirm that they have, and that the positive effects of a superior barrel life and the ease of maintenance outweigh the difficulty and costs of doing the chrome lining. The FBI required a 10,000 round barrel life without losing the .5 MOA accuracy requirement and the FN was able to pass those tests as well. An older out of production SPR A4 rifle we had on hand here does not have the chrome lined barrel, but checking the current FN catalog shows that all of their current lineup of SPR rifles have the chrome lined bores."