Sure but I have also seen plenty of shooters who could excel with a .22 and do very poorly shooting a .45. Same thing when a shooter goes from wadcutters to hardball.
Fair nuf. While I have always shot well with a pistol (.45 & 9mm) personally, my only shooting trainer experience was with the M16 series. Of course, now that you mention it, my wife gets tighter shot groups than I do with our .38 & .357s than I do, but she does not shoot as well with my M9.
V/R
Bill