which kind of bullet puller is best

[TGUNTER]

Impact, I also use both sometimes though.

 

[shooter1054]

If you use an impact puller with pointed bullets a piece of foam is recomended for the "well". That will "catch" the bullet and prevent deforming the point. I haven't noticed any issues with JHPs deforming.

 

[phidelt208]

I've save about 200 9mm, 45 acp rounds with my impact hammer.
Plus its fun to mass down on the reloading table.