Lots of amazing actions these days, hard to make a bad choice.
The TL3 has lots of nice features. I owned one for a hot minute, bought it for the wife's rifle. It has a lot of "slop" when the bolt is fully rearward, which bothered the wife so I bought her a LP Fuzion instead. The TL3 does have great features though, and I wouldn't let the "slop" when it's fully rearward deter you - when cycling the bolt behind the rifle it's probably not noticeable at all. CS at Bighorn is great as well, so you will be fully supported by the manufacturer.
My current match rifle is a CRF action, but I went Mausingfield. I really love this action, has some very clever design features, much like the TL3. Paired with a LRI bolt knob and the right trigger, it has super light bolt lift and even lighter bolt close, and very reliable operation in adverse conditions.
For push feed, the Lone Peak Fuzion is a hard one to overlook. Bolt snaps open and is super smooth to operate. Impact is great as well, though it's a bit overhyped - with all the internet rhetoric and hyperbole around it, you may be disappointed that it doesn't give you a blowjob while you shoot off of a barricade. Still a nice action though. Defiance is another great choice. With the correct paired trigger and coating/surface treatment, all feel and operate great. Really a matter of preference. All are held to close enough tolerances that prefits can be made for them. Fuzion and Impact are "come as they are" where as the Defiance has more customizable options then any other action I know of combined.
Quite honestly, there isn't a bad answer these days for tier 1 actions. The quality and features of all of them are top notch. Pick one that speaks to you and run with it.
