Fix it with loads?

[cosmic creepers]

Not sure if you guys go onto the weeds on much pistol stuff here, but I got two guns, one for carrying and one for run and gun match shoots.

They are a p320X5 and a P320M18.

I fired both of these guns off of the same fire control unit.

But I can not get to the bottom of how to remedy this. 4 different lots of ammo, three different lots of handloads. Same or similar results.

The target pistol has a wonderful set of sights, yet I can't seem to figure out what is wrong here. Every other gun I own shoots 2 or 3 inch groups at 15 yards except or one, which never gets shot anyways.

If I can't make it shoot with some different powder I'm going to change a barrel.

Any help would be much appreciated before I blow 100 bucks or whatever it costs for a barrel.

Thanks.

The Constitution is my Bible

**edit, all of the x5 groups are on the left, which I'm dissatisfied with, and all of the m18 groups are on the right, which I am satisfied with and have only a few called pulls but no anomalies

 

[SeabeeKen]

Changed barrels in my Glock 20,21 and it shoots groups less than half that

 

[cosmic creepers]

Changed barrels in my Glock 20,21 and it shoots groups less than half that

Any recommendation on a good brand of barrel?

 

[SeabeeKen]

I use both lone wolf and KKM stainless match barrels and both work great for me. I have them in 45acp, 10mm, and 40sw. I also shoot 45 super in the acp barrel

 

[RegionRat]

Before you start spending money on parts, my opinion is the test results don't look right.
Your groups are both much bigger than typical for those rigs.

Do you rest your hands on bags when you test?

If you can find a support platform or table that allows you to use a normal eye distance to the sights, but with your hands and arms supported, you can get a better idea of the contribution of the shooter versus the ammo/gun.

A Ransom Rest is typically used, but an experienced shooter can shoot good enough to evaluate ammo from bag rests without the Ransom Rest.

 

[CJ6]

I switched to 124 gr. Hornady action pistol bullets and VV 3n37 . 3n37 also works really well with 147 gr. Hornady bullets. These are all used in Sig 226s or 229s.

 

[Coyotefurharvester]

Lobstering , gripping the gun continuously tighter as the trigger is pulled. Strings rds between 3-5 o'clock.

 

[cosmic creepers]

I

Before you start spending money on parts, my opinion is the test results don't look right.
Your groups are both much bigger than typical for those rigs.

Do you rest your hands on bags when you test?

If you can find a support platform or table that allows you to use a normal eye distance to the sights, but with your hands and arms supported, you can get a better idea of the contribution of the shooter versus the ammo/gun.

A Ransom Rest is typically used, but an experienced shooter can shoot good enough to evaluate ammo from bag rests without the Ransom Rest.

Felt pretty stretched out and well supported. But I've got plenty of smoke, I can shoot the tests again

 

[cosmic creepers]

I switched to 124 gr. Hornady action pistol bullets and VV 3n37 . 3n37 also works really well with 147 gr. Hornady bullets. These are all used in Sig 226s or 229s.

I've only been shooting the 125 copper Plated flatpoint because I had bought 750 of them when they were on sale, snd my other two 9mms shoot like 2 inch groups with them.

 

[cosmic creepers]

Fixed it with a new barrel. Thanks for the "you don't know how to shoot" help, as always!