The Savage is a fine ML no doubt. But only has a year warranty.

I also suggest a lower line model to start with. But you can get a base ML that will provide many years of excellent service if properly maintained.

I would recommend a T/C Omega or Knight Elite. These new can be had for $325-450 depending on the model and are superb shooting ML's. Go with a .50 cal.

For lifetime warranty, service and quality, you really cannot go wrong with Thompson/Center or Knight. I'd give the edge to T/C overall.

So what if you can't shoot smokeless powder. There are substitute powders that are very clean (Black Mag'3, 777, Pinnacle, APP).

I'd also suggest not taking the kids to the range for the first few trips until you get the hang of shooting an ML and have some base loads developed.

My .02.