Only been around one model 99. It was a 308 of unknown model but about a 1988 - '89 I think. The hunter had a redfield 3-9 on it and was a 2" - 2 1/2inch 100 yard rifle. Just remember it because it seemed pretty good concedering how he was shooting it. The hunter was just checking has new scope and was not shooting from a bench. It was over a ATV seat at camp. Alway wished I had bought one when cheaper and more avalible.
Bench? Using rifles very rarely ever see a bench, they are lucky if they find a fencepost or tree limb. I can tell you that a Yucca plant makes a pretty good steady rest when you are prone...kick the chit out of it first to make sure there aint no rattlers in it though.