Need a little help/advice with reloading for accuracy

[JT78]

Ok so I'm fairly new to reloading I have a couple loads that shoot very accurate in 9mm and 45acp but I have some that seem to be landing to the right of my point of aim. I know it's not my aiming ability cause regular box ammo I'm sending them dead through the bull's-eye so do I need to change my powder amount, coal, crimp, or just type of powder?
Example I have some 225gr tc 45 regular cast lead sized .451 with 5.8gr on cfe pistol that are super accurate but loaded some coated 225gr tc sized .452 with 5.8gr of cfe pistol that are landing about 3-4 inches to the right of my point of aim grouping is great but what do I need to adjust to bring them left other than having to aim 4 inches left of where I want the bullet to land?

[Grmps]

Each firearm is different. Some powders just won't work with some guns.

You could do a ladder test ( work up and down from 5.8 grn in .2 increments (5 rounds ea) untill you find the most accurate then go up and down from that load in smaller increments in 10 shot groups to find the best load.
Sometimes you have to play with boolit diameter and hardness also.

this might help you get going
If you decided to start casting to save money, forget it. You won't, you'll just shoot more.
Casting boolits (lead bullets) properly is a science, once you know the basics, not a hard science.
There is a lot of good information on CB. The Google search (top right of every forum page) is a gateway to all the knowledge on this forum. IF you can’t find your answer there ask the question (Please be as detailed as possible, pictures help http://castboolits.gunloads.com/show...g-screen-shots I would be very surprised if there wasn’t someone on this forum that could answer ANY question you might have)
http://www.lasc.us/Fryxell_Book_Contents.htm
1. Boolits need to be cast .0005 to .003 over the slugged diameter of your barrel for accuracy and to avoid leading. If the fit is wrong nothing else will work right.
a. slugging a barrel (it is safer to use a brass rod or a steel rod with a couple of coats of tape to avoid damaging your barrel http://7.62x54r.net/MosinID/MosinSlug.htm
b. chamber casting https://www.brownells.com/guntech/ce....htm?lid=10614
or pound casting http://castboolits.gunloads.com/show...rifle-chamber)
2. the right alloy needs to be used for the velocity and purpose of the boolit (don’t fall into the trap of going with to hard an alloy
Economical way to easily test lead hardness
http://castboolits.gunloads.com/show...rdness-testing

Some alloys harden over time
http://www.lasc.us/Fryxell_Book_Chap...Metallurgy.htm
different alloy’s different end sizes

Lead alloy calculator
http://castboolits.gunloads.com/atta...4&d=1341560870
3. velocity the bullet needs to be pushed hard/fast enough to get the proper spin, have the proper velocity to accurately reach the target but not so hard as to be dangerous or strip the lead off in the grooves instead of spinning the boolit..
Powders range from fast to slow, you need to choose the right powder for your application.
Loading manuals list the best powders for certain calibers and boolit weights.
NEVER use any posted noncommercial load data without first checking to see if falls in the safe parameter for your firearm!! There are several firearms out there that can handle much higher pressures than others!!
Link to free online load data
http://castboolits.gunloads.com/show...online-sources

[JT78]

I don't cast my own I buy commercial cast bullets just wondering why one bullet is dead on and the other is off poi vs poa I see the same issue with my 9mm and my 45 so you think maybe more or less powder in a ladder test? I can see in my rifles how velocity changes poi vs poa .

[ShooterAZ]

POI shift happens (no pun intended), not only with centerfire cartridges but with rimfire as well. My suggestion would be to try a different powder. Try some Bullseye or Titegroup and see what happens.

[JT78]

I got some titegroup and unique on hand.

[Rcmaveric]

Different bullets have different POI's. Simple Powder Coating will shift POI. I would pick one bullet and then adjust my sights. Sticking with one bullets.