Assuming good condition to like new, 350-400 would be a good buy in my book. I love the model and have it in 44 mag which I deer hunt with. Dad has it in .357 mag and deer hunts with it the 41 mag will be just fine on whitetails. I prefer closer shots than some and like to keep it under 100yrds some will say 150. I just check a couple of website for the price of ammo and you are looking at a buck a shot or higher with the 41 mag it does not seem readily as readily available as 357 or 44 mag. It seems to be on par with most high power rifle cartridges prices. I was wanting the .41 mag when I got the 44 mag they are a little harder to find and this may make them worth a little more. One last tip you can tell when it was made by subtracting the first two numbers in the serial number form 2000. You will also hear about the marlin jam but I do not feel it is that big of a problem and have not had problems with mine or dads.