CZ 457 Pro Varmint completely. Or something like this. CZ Varmint Precision Chassis, CZ Varmint Precision trainer. They have a controlled round feed with the ejector and extractor. Trigger that comes with it only needs a spring change it is completely adjustable from the factory. 60 degree bolt throw and it is very slick after break in. Ability to replace or change barrels at HOME. Pull the 2 screws in the underside of the barrel slide the old one out and slide the new one in place. Torque the screws and reassemble and shoot. Calibers from 22lr, 22 WMR, 17 HMR. IBI Barrels, Lothar Walther barrels available if you want to play. All these calibers will fit the same basic rifle. Stocks and Chassis available from a number of companies. Magazines easily available.
Tikka weak point is the ejector spring other than that it is a great rifle. Bolt lift is 60 degrees. Inter-changeable barrels with drop in units from other companies IBI and Lothar Walther if you wish to play. Stocks, Chassis available from a number of companies. This rifle has all the same barrel change ability the CZ 457 has. All with the same action and stocks. Magazines are available
Bergara has a week firing pin. The trigger group should be replaced. Barrels have had some issues and it takes a gunsmith to have them replaced. The action has controlled round feed. Bolt lift is 90 degrees. Good rifle however it does have a number of drawbacks. Magazines difficult to find at times. Not as versatile as the CZ 457 or the Tikka T1x.
Optics you should spend some time with and pick one you can live with. Vortex and Athlon have been a good alternative for the 22lr market. First focal plane with an outside adjusting parallax and the ability to be adjusted to 10 yards.
CCI Standard Velocity is a mediocre ammunition. You should be looking in the SK Ammunition series for something that shoots in your rifle choice.
