Yes... while not a well recognized "hang fire"... but a delay discernible enough that lets you know it happened.
As far as brand name for tools... Hornady, Dillon, and RCBS are front runners... 90% of my gear is RCBS. IMO their CS is second to one. You're welcome out ANYTIME I'm up that way... I can talk shop (reloading) for hours...
As far as the bore goes, any good gunsmith should be able to "slug" your barrel to find the tightest overall measurement... you can do it actually by using a wood dowel to drive a lead slug through the bore (chamber to muzzle) and then measure the slug with a caliper. As far as the deviation in bore diameter throughout the entire bore, having it air gauged would tell you but I have no idea who or where you could get it done... or if you could. As you drive a slug down the barrel you might even detect larger areas in the bore just based off resistance.