I've got a model 12 with a single shot action. Aftermarket BR-type stock. Custom Krieger barrel chambered in 22BR. Very satisfied with the accuracy, but the bolt lift is too heavy to consider entering any kind of match. Have thought about having some work done on the action, but I'm not convinced that the cost will give the amount of desired improvement. I'd love to hear someone say it could be as slick as a custom action for a reasonable investment. But until then investing in a custom action seems like a better choice (if a person is hoping to compete).
I love the Accutrigger, but again, it's not even close to a Jewel.