I have a Springfield Model 840 which is basically the same rifle as the 340. Mine is a 222. I bought the barreled action at a gun show in Houston for $100.00. It had no stock with it but I found one the same day at the gun show but it had been cut off on both ends, I guess for a kid. The guy just gave it to me no charge to get rid of it. I finished the fore end with burled redwood and built the buttstock up with black and white spacers and a very thin rubber recoil pad. I really looks nice and I'm in the process of checkering the stock now. As for accuracy and the barrel band, you have to experiment with its tightness. You can also cut the inside of the barrel channel down so that the barrel will only touch in one or two places. One should be near the forend and you will need to experiment to find the other if needed. You can use bedding glass to build up the contact points. I have improved the accuracy of mine to 1 inch with Remington 50 grain PSP and 1/2 inch groups with 50 grain Remington Power-Lokt Hollow Points from the bench at 100 yards. This little rifle has taken many coyotes and bobcats and several feral hogs. I'm keeping mine. Its a fun gun to shoot. It's a pretty gun with a honey blonde stock. If you would like pics just let me know. Cherokee