It's better now. Still shoots slightly to the right, but I think it's good enough. It does shoot high though (and even higher with 124gr).
Unless you've got really HOT 124 gr. rounds that are moving faster than the lighter rounds, that difference is likely due to something YOU are doing.
Out to 20 yards or or so, you shouldn't see much difference -- and definitely NOT higher points of impact for 124 gr. rounds until the distance increases. Then, the heavier rounds should be hitting lower as gravity's effect on bullets is the same, regardless of bullet weight.
The heavier bullets take longer to get there and have dropped more when traveling the same distance. You'll have a hard time seeing a measurable difference until you shoot at more distant targets.
(With revolvers, things are subtly different, as the way a revolver passes recoil to the shooter is different than with a semi-auto. T he barrel rise due to the gun's pivoting action is NOT delayed with a revolver
as it is with a semi-auto. It will be easier to see higher points of impact from heavier bullets in a revolver than with a semi-auto. (Remember that with a semi-auto, the bullet it typically out of the barrel before the slide has move more than maybe a 10th of an inch, and it's not until the slide has moved more to the rear that you start to see a lot of barrel rise.)
If you want to get really serious, when starting from empty, fire the first round of a new mag off target. Why? The gun won't lock up the same on the first shot when you manually release the slide to chamber that first round as when the gun's action does the job after a round is fired.
