Quoted:
Are your sight aliened? Have you tried different types of ammo? Have you let some one else shoot it to make sure its not your technique.
I have shot different types of ammo and my reloads of Hornady 180 HP XTP's shot very well , have some Speer Lawman factory that shoot OK . I am shooting my targets for comparison off of a bench and bags . A bullet that prints on target side ways is tumbling and will not be very accurate , in fact many times they will be off paper completely , been down this road many years ago when I used to shoot target pistols in 38 .
But I am confused if you can use a 23 barrel for an extended length in 27 , why could you not use a 22 barrel for an extended length 23? Is there some difference that I am not seeing ? Or maybe a difference in the barrel diameter ?? Or what ?