Question about reloading hornady 454. bullets

I'm new to reloading. I have a lee loader kit and plan to make 45 long colt with black powder (pyrodex). I bought these 454. Bullets but they have no crimp groove. How will I know how to properly seat them? https://www.hornady.com/bullets/handgun/45-cal-454-255-gr-fp-cowboy#!/