Wayne24,
I bought a 44 mag handi-rifle last year, and it does not have microgroove rifling. It has 6 distinct lands and grooves. Mine is no target rifle, shoots 4 MOA with just about any ammo I put through it, including cast lead bullets. I've tried a variety of tweaks on it but haven't found the secret to better accuracy yet. Nevertheless, it is rock solid and dependable, and good enough to get deer at woodland ranges, which is what I bought it for. Worked well for me last deer season.
Duane