I tried shooting heavy cast out of my 44 but they shot too high.
I was shooting 262 gr with 4227

I bottomed out the rear sight.
I hate to change the front (since I just had a hi viz installed.

Would a powder change possibly lower point of impact?

Maybe Festus,any idea what your velocity is with 4227?

I would expect that an increase in velocity might lower the the point of impact. I do not know what velocity that you are getting or what you want. If you have some 2400 try it. It is pretty forgiving in loading either relatively light loads or those that are heavier.

Actually an increase in velocity will raise the point of impact on a revolver. More velocity means more recoil and the point of impact is largely determined by how much the gun recoils before the bullet exits the barrel. That is why he is experiancing a higher point of impact with a heavier bullet. All things being equal a heavier bullet means more recoil.

I am refurring here to what I call intial recoil, that is the recoil caused by the movement of the bullet until it exits the barrel. As I understand it most of felt recoil occurs after the bullet leaves the barrel by the excaping gas. A movement of only a fraction of a degree before the bullet exits the barrel can change the point of impact by several inches.

I take it this didn't start until after you changed the front sight? How did it shoot before? Did you install matching front & rear sights, or just the front one? 262 gr isn't really a heavyweight for a 44 magnum

Of course it is relative, had he been shooting as 180 gr before 262 would be enough heavier to change his POI.

Well compared to the old standard 240 grain loads.

We need more info from Festus. We do know that he put a new front sight and it was perhaps shorter than the orginal and was still ok for lighter bullets.

Hank,

I disagree with you. My experience is lighter and/or faster bullets strike lower and heavier/slower bullets stike higher from a revolver. This is opposite of what I expect from a rifle.

IME faster bullets shoot lower than slower bullets. Case in point a 440 grain at 950 FPS shoots high in my FA-83 500 JRH, so high in fact that I do not have enough sight adjustment to compensate. Yet the same bullet @ 1380 FPS sights in

You misunderstood what I mean't. Of course a lighter bullet will strike lower even though it is faster. What I mean't and it has been my experiance that for the same bullet weight increasing the velocity raises the POI. Others may have a different experiance but that is my observation.

Of course there are all sorts of variables that enter in to what happens, like a faster or slower burning powder may cause the intial recoil (my term) to react with the gun differently.

In my experience a heavy bullet that is slower shoots higher than one that is 300 to 400 FPS faster. The slower bullet has longer barrel time

Yea, it is a combination of dwell time in the barrel and bullet weight. The shooter's grip has a lot to do with it as well. Less time in the tube = less time for muzzle rise to affect it, which is determined by recoil, which is dependant upon bullet weight and velocity. If you play around with enough variables you will find the one that works.

there is another option, Ruger uses two different heights of rear sights, if you have the taller of the two you can go to the lower one. The other option is if there is room use a square needle file and deepen the notch.

To clarify I had magnaport install a hi-viz FS
It appears to be the same or a little taller than the original.
But I dont have the old one to compare as it was milled off.

I wasshooting a moderate load

Cast performance 262 with 22.5 gr of IMR4227
At 40 yds it shot 24-30inches high
I had my cousin shoot to make sure it want me and he did about the same.
I shot factory loaded 250 winchester sivertips(prior to new FO sight) and didnt have a problem.
They shot high but not that high.

Anyway I like large meplat heavy cast, but not if I have to aim in the dirt in fromt of the deer.
Once it cools down Im going to test some more.

The faster I push the same bullet out of a revolver, the lower the point of impact will be. The slower the bullet, the more time in the barrel, barrel is higher in recoil, higher impact. This has been true for every handgun that I load for. Just my observations.

Try some AA#9. I get good velocity in a 44 mag using it.

Cant offer anything on handloads, but with factory ammo, my 44 hits alot higher with 300gr slugs, than with 240's. I had to bottom out the rear sight to get close with the 300's.