If you are interested in long range mz , first find out if smokeless is allowed in the area you want to hunt. If it is, then proceed to buy a Savage, or one of the other smokeless custom options. If you are not familiar with those options, go the Savage Smokeless mz page (it used to be on Doug's message boards) or read some of Randy Wakeman (although some people think he is a quack) on his page, it offers good info on the Savage. I have a Savage and it is a true 300 yard gun with only a few mods. With a good dialing scope and a range finder I am sure you can shoot as far as you want with one. The customs are a step up from the Savage.
If you can't use smokeless, the Savage is not a bad option with standard BP subs, and is quite good with Blackhorn 209 ( as good or better than the other inlines). These guns show up here on the fire classifieds regularly; however, are not cheap.