Prepping the trigger and the dot moves…

[BR8818]

There ya go found it. Watch the gap between slide and frame.

Never seen a glock or m&p do that. Seem back and forth due to people messing with recoil and striker springs trying to lighten trigger pulls, but never up and down.

View attachment 185961

My 365xl does this, but it hasn't caused a problem "yet" and it's pretty accurate.

 

[PRasko]

I mean we’re talking a few thou in movement?

The question is, is it the entire slide that moves up and down or just the rear? And better yet, is it consistent? If it doesnt consistently do this, you are getting a loss in accuracy each time it does or doesnt happen.

How much of a loss? No idea. I’m not a mathmetician.

Does it matter at pistol ranges? Depends on how much loss in accuracy i suppose.

 

[ditcherman]

I mean we’re talking a few thou in movement?

The question is, is it the entire slide that moves up and down or just the rear? And better yet, is it consistent? If it doesnt consistently do this, you are getting a loss in accuracy each time it does or doesnt happen.

How much of a loss? No idea. I’m not a mathmetician.

Does it matter at pistol ranges? Depends on how much loss in accuracy i suppose.

Well said, and remember also it depends if a mag is in or not.