Haz, as I mentioned, it's all about the size of the target and how far away.

.22rf rifle silhouette is one of the most challenging matches there is. The chickens at 40 meters, are about the size of a half dollar,, the pigs at 50 meters are like shooting at a 2x4 from the end, the turkeys at 75 meters, ( the hardest ) are like shooting a tennis ball, and then the rams at 100 meters are like shooting at someones hand stuck out for a handshake. Most scopes reticles will subtend bigger than the target, and a .22 riflescopes parallax is usually set for 75 yards. You need a good scope with parallax adjustment down to 50 yards at least, with excellent adjustment capability, with a .22rf, you do have to adjust from 40 to 100 meters. In a rifle the .22rf drops 7" from 50 to 100 meters. Not to mention, the wind is a huge factor in rimfire. Plus you need to see the target, a 3x9 won't get you there, maybe with a very fine cross hair reticle, but it will make it hard.
Another subject, .22rf in the field, you are usually shooting at small animals, squirrels, rabbits and such, a higher magnification makes sense, at least a 3x9.
Now to the Chevy team challenge, 1 target at 100 meters is approx. 2 1/2" tall and 1" wide, you gonna hit that with something less than 10 power???