My cz 452 has a 20" standard barrel. I was tempted to have it cut to 16" for handiness but as it puts three shots into 1/2 inch at 100 yards I'm leaving it alone.
I got it second hand and I'm pretty sure it's got the original trigger unit. I was thinking of putting a Jewel or similar trigger unit on it but, as above, I'm leaving it alone.
I don't really understand why folk get a varmint barrel when you can get this accuracy from a standard barrel.
Barrel heating up isn't a problem either as I can still get a 1/2" group after firing a 50 box of Winchester subs.
Just wondering what others experiences are?.