Originally Posted by potentialglock
I've been practicing with fmj Winchester white box. Should I still practice with maybe 50 rounds of the SD ammo to make sure it runs thru my pistol?
What I advise is to shoot at least 2 mags (two different mags is you are going to carry an extra mag) of your carry ammo to:
1. Verify the function of the ammo in your weapon, and
2. To familiarize you to the feel and zero of your carry ammo.
In today's world this will not be cheap, but it is worth the expanse!
Hope this helped.