I have two 452's one in 22lr and one in 22 mag. I use the 22lr for matches and the 22 mag for hunting. The 22lr had an good trigger out of the box, but I found it had a little to much creep for off hand shooting and got a trigger kit to take the creep out and lighten it up...I may have lightened it before getting the kit with the adjustments within the trigger. After getting the kit (yo-dave) I got the creep out and lighten the trigger up to about 2 lbs. I found this to light for off hand shooting and but the factor spring back in which is a 3lb trigger pull.
The mag I have thought about doing the same thing to but the 3.5 lb pull is good for me in a hunting rifle and the creep is not noticeable on this one, but I am not doing precision target work with it either. Anyway point is you will not be unsatisfied with the trigger out of the box. If you want to make it 'perfect', it is easily done with the yo dave kit or an adjustable sear or both for about 60 bucks or you can get an aftermarket trigger for a little over a 100.
http://www.DIProductsInc.com/Detail.aspx?PROD=112042&CAT=3600http://www.yodaveproducts.com/index.htmlI have shot about 10 different brands/types of ammo in the mag and all groups (5 shot) were an inch or under and the best was with Hornaday V-max at just under a half inch. These were all shot at 75 yards, our long range has been under closed for one reason or another for most of last year when I did the testing.
The 22 lr is very accurate. I have shot bench rest groups under a half inch at 50 yards (5 shot). The off hand match I shoot in is at 75, 50, and 25 yards against all other makes and models, I usually place in the top 3 or 4 shooter and am the only open sight shooter.
Personally, I am not a fan of the Varmint. I would prefer the lighter American over the Varmint. I have the Lux and find it to be a very nice stock for open sight shooting and hunting.
My understanding is the 452 is being phased out for the new 455 which has an interchangeable barrel system, so get one quickly if you are set on the 452.