My understanding is much of the skill you will acquire from shooting a .22 pistol will transfer to a larger caliber, that being stance, breathing, patience, pace, etc. But shooting .22 LR ammo through say a Glock 17 will feel almost nothing like shooting 9mm ammo, so the only way to really get good shooting a Glock 17 with 9mm ammo is to USE 9mm ammo in your Glock 17. Unless you're more interested in shooting a serious looking gun on the cheap, in which case a conversion kit is the way to go.
That statement is just ignorant.
Shoot some CCI Stingers from your (.22LR-converted) Glock 17 and then shoot some Winchester White Box (9x19mm) from your Glock 17.
You might actually learn something.


















































