boy, I feel like a bit of an idiot right now, but I figure this is the place to figure things out. I read in the post about using a shotgun on deer, the fella asked if he could use a choke.

Now, I know what a choke is: it is a narrowing of the barrel in order to form tighter patterns. IE: full, mod, improved.
If a hunter was using buckshot, I could see using a choke. however, if a hunter is using slugs, how could he use a choke, wouldn't the slug hit the choke causing the choke to blow off or the barrell to explode?
thanks for any input. I'll hit you all up with another question on slugs a bit later.

Beej