Have 3 model 99 . One was grandpa's bought new in 1941 topped with a Weaver 4x. One is his brother's, iron sights never tapped for a scope. I started deer hunting with that one. The other my dad picked up in the early 70's. It is topped with a Weaver 2.5x7 , post reticle. I have killed many whitetail with these. Took my first cow elk with one.
I prefer the 180 gr factory loads. Shot Remington Core Lokt for years then they stopped making them so I now use the Federal Power Shock in 180 gr. Dad and grandpa always called the 99s 'ole meat in the pot' .