Well, here goes my 2 cents worth...........
Let me say first of all that I am not trying to add fuel to anyone's fire about which is the better rifle, the Savage or the NULA. I don't want to get involved in any battles along those lines. I'm just going to relate my personal experiences for you to take or leave.
I own(ed) both the NULA and several Savage muzzleloaders. Both of my Savage rifles were pretty good shooters from the beginning. I sold one to fund a complete reworking of the other. I went for all the bells and whistles....new bedded stock, third screw, and so on. That Savage would shoot consistent inch and a quarter groups all day long with the 300 XTP, on some days it would break the one inch mark. The finished gun weighed a little over 11 pounds. I shot a dandy 10 pointer with that gun, my largest to date with a muzzleloader. If I were to hunt only from ground blinds, this gun would be ideal. Frankly, I got tired of lugging that rifle around. With my kids grown and gone, and money less tight, I began to think seriously of finding something lighter. I decided to order a NULA, based on things I had read. Mine cost $1200 at the time. Looking back over my records, there wasn't a great deal of difference between what I had invested in that Savage, and the price of the NULA. My NULA is topped with a Zeiss Conquest 3X9, and tips the scale at close to 7 1/2 pounds. I changed out the ramrod to one that was a bit stiffer. Using a sand filled Bull's Bag, which grips the forend and reduces felt recoil, and a sandbag under the buttstock, I had no troubles sighting the gun in. From the beginning, the NULA never shot a group larger than 3/4 inch with either the 250 Bonded Shockwave, or the 275 BE. Other NULA owners have reported the same level of accuracy. I had the gun finished with a four color oak leaf camo pattern. It is as pretty to look at as it is accurate. Fit and finish of my NULA is near perfect. It is a joy to handle and carry. I learned the ins and outs of smokeless muzzleloading with that Savage. I can understand why so many shooters love the Savage, especially those on a budget or those guys who love to tinker and find ways to make a great rifle even better. I will be the first to admit that I am not into 40/45 barrel conversions, duplex loads, sabotless shooting and so on. I admire the passion of those guys who do. I'm sure it is a fascinating and rewarding addiction of the highest order. That being said, My NULA provides me with everything I want in a smokeless muzzleloader: excellent workmanship, light weight, incredible accuracy, and it fits me like a glove. Looking back, if I knew everything I know now about these two guns, I would have bought the NULA before going through the rebuild of my Savage. If I had kids in school yet, and the bills to pay of my younger years, I would still be lugging around that Savage, and would be happy doing so. I am lucky to be in a position now to afford both. The Savage sits in my gun safe, and the NULA goes hunting with me. I'm keeping the Savage for the time being, but if an emergency need for cash arose, it would be the first rifle out of my safe to be sold. I will not part with my NULA.
For those of you who are thinking about investing in a NULA, I would recommend you do so. You will not regret the choice. For those of you whose favorite is the Savage, I am happy for you as it is a wonderful rifle and another fine choice.