i built off a remington muzzeloader. bought for 150.00 used the action scraped the rest,you can find them around reasonable plus they have a adjustable trigger.arrowhead outfitters "luke" can give info on how to convert your savage centerfires, also other that convert encore 45-70,h&r 45-70 handi rifles, and i thinka few others.nice to have a few options.
I built this one a couple years ago and have no desire to ever own another muzzleloader. Built on a Savage 110 action with a Pac-Nor 45 caliber barrel. It takes a special breach plug that uses 45acp brass as the ignition source. 300 yards is a chip shot with this thing. My advice is get with Luke at arrowhead and he will get you set up.
300 yard group
Almost forgot to mention here are the prices i paid.
breach plug 95