I use an older model Leupold Vari-X II in 3x9 with an adjustable objective. This was my first Leupold and now I own several that I use on target rifles, .22’s, etc. You cannot go wrong with a Leupold. They are super bright, have lots of eye relief, are very rugged and hold their zero when changing power settings.
I used the 3x9 AO on a Thompson Center Hawken .50 (with a clamp on mount), a .50 Ruger 77 Muzzleloader, a Remington 700 BDL in 30-06 and a Marlin 336 in .35 Remington. If you lap your rings, you can move a scope from rifle to rifle without bending the tube.
Whatever scope you purchase, be sure that it has a low power setting as this is all you need with a muzzle loader, even out past 100 yards. At higher power settings, the field of view is greatly reduced. When hunting, I would use the 3X setting. On the range, I would zero at 9X and then turn to 3X for a confirming zero. If your Savage is the smokeless powder version, you may hunt at longer ranges but, even with a 30-06, I still used the 3X setting.
I hunt the Kentucky woods where the typical shot is about 50 yards. I did take one nice 8 pointer at about 135 yards. I shot a nice 10 pointer on a dead run at about 75 yards, a massive 10 pointer at about 25 yards and probably over 50 other deer from 1979 to a few years ago.
The older Leupold Var1-X II is super bright and the Adjustable Objective feature lets you select the best setting for minimum parallax at whatever range you are hunting.
Newer model Leupold’s are even better. Going back to just after WW II, Leupold has never made a bad scope. I think that the Leopold engineers were involved in making optical bomb sights and learned to use nitrogen filled optics to prevent fogging at subzero temperatures.
Don’t buy an inferior scope as you will be disappointed. IMO, once you have used the Adjustable Objective (AO) feature, you will want it on all your scopes.
I would watch Ebay for a buy on an older model Vari-X II scope. You should be able to find one in the $250 - $300 range.
Ed Ward