RE: guns
I dont know anything about the marlin's but I was looking at the savage arms and some of them looked pretty good. nice prices to. I dont know about performance though. I have shot a ruger .22lr and its held up pretty good over the years. I haven't sited it in in a while though and i'd say its over due. And the ten round clip is great to. you can shoot as fast as you can pull the trigger. reloading is easy to. Also, im going to change the scope, i have a 4x15 but the lens is too small so im upgrading to a larger one. I mainly use this gun for squirrels, but im confident it could take down a fox, dont know about coyote but it could handle a beaver.
Also, not to put anyone in the spotlight, but i've always thought that although the gun is a big part of accuracy, its more a part of how good the shooter is. JMO
Hope this helped somewhat.