I have had my permit since 1996 - the first year of the permits. I have taken that silly class 4 times now (3 renewals).
Anyway - on 1 of the renewals, there was an old lady in her 70s that had never even held a gun before. The instructor let her borrow a Glock 17. This CHL class is not a place to learn how to use a gun for the 1st time. But, the instructor humored her.
Anyway - this old lady, who had never even held a gun before, passed. I always thought the requirements should be 1 more than what that lady got.
If you can get a decent score at 3 and 7 yards, U can actually miss all the 15 yards shots and still pass.
Don't worry - if U can hit a sihloette target - U can pass.
Strangely enough, the last time I took the class - the target has changed a bit. Now, U no longer get a lot of points on a head shot. They want you to shoot at center of mass.
I typically got 242 to 245. I used 1911s most of the time. I used my P99 A/S 9mm the last renewal, and I finally got a 250.