Re: heavy barrel .22 bolt action
avd,
First is this for you or a youth?
Are you looking for semi-auto, bolt action, single shot, detachable magazine, tube magazine? Grooved receiver or one that you can screw a base to? Synthetic or wood stock? Adjustable trigger? Are you concerned about the amount of after market parts/upgrades available? Are you looking for something threaded to accept a supressor?
Savage, CZ, Marlin, Ruger and several others all offer heavy barreled rifles to help narrow it down think about what features you want for the application you are wanting it for. The Ruger 10/22 has probably the biggest amount of options available. I have a couple 10/22's, Marlin 880SQ, Savage MK II, Marlin Model 60, and a Winchester 52 all of which have their advantages and disadvantages.