Country Boy,
In the late 1960s and early 1970s I owned two Ruger 44 Carbines. I did not keep them. One had functional issues and the other shot patterns.
I have owned and shot a Deerfield (the 99/44) since 2000. I used it for three hunting seasons here in MN, and the rifle is a pleasure to carry and shoot afield. Originally I had a scope on it, but in deference to its purpose and the limited abilities of the cartridge, I removed the scope. It was scoped when I shot two deer with it in the 2000 and 2001 seasons here in MN. I quit using the cartridge in the heavy brush prevalent where I still hunt as the stubby little .44 bullets have poor sectional densities and do not get through brush well, as was illustrated for me in the 2002 deer season. I have since used the rifle as a camp gun and plinker. A lot. With the scope removed it is as close to the little US M1 Carbine as one can get. If I could locate an aftermarket handguard like those available for the Mini series, the handling qualities would be the same as the carbine, as the protruding and hand filling guard over the op rod would be gone.
With a scope mine is capable of 2 inch groups at 100 yards with Remington 240 grain and Speer 270 grain Gold Dot loads, both factory and my own duplicate handloads. With the peep it becomes a 3-4 MOA rifle. As far as I'm concerned, this is fine for such a rifle. In the 8 years I've owned and shot it there have been no functional issues and the accuracy has remained as it was when I first sighted the rifle in.
The only caveat regarding this rifle; the barrel band and action screws do shoot loose, so one must periodically check them for tightness to insure the rifle will perform correctly.