All I know is treat it like a GUN not like a carton of eggs and dont be afraid to be forceful you aint gonna hurt it.^ Some prefer the "slap" - others prefer the "smash."
I'm among the latter - I don't know why, but when I "slap," I get a bounce-out more often than not, which of-course doesn't help the magazine seat properly. Might just be the amount of meat on my palms!
I instead prefer a "smash" or "smush," where at the end of the insertion, I kinda "push" the magazine home a bit more: smashing/smushing the heels of my hands together, in a manner of speaking. Since my normal handgun reload has me "dropping the gun onto the mag" instead of feeding the mag into the gun, this smash/smoosh doesn't cost any more time.
What ever word ya want to use just slam that biatch home and carry on.
Sent from my iPhone using Tapatalk