The T3 has a good reputation,but if you come across a 595 secondhand,you would get a superior rifle,the aftermarket bolt shroud is a must,especially if you find the stainless model.
Mind you,I own a 595 and find myself looking around for a Sako 75 to replace it,so maybe if you look for a little used Sako 75 with the varmint barrel and you'll own the rifle you may always hanker after.
You didn't mention the calibre you were looking for. There's an awful lot of little used rifles available at gunships around the country,you could save a lot of money for some quality optics.