I have a 458 in 243 also. It has the original trigger that, in my rifle, is fine. In a Husqvarna 1640 30/06 rifle I own, I replaced the original trigger, that really sucked, with a Huber trigger and it worked great. Except for the trigger guards being different, I can't see any difference at all in the two actions. I wouldn't hesitate to replace the trigger on my Husqvarna 458 with a Huber.
