"Rifles (not like I'm buying an AR) "
Why do you think that should matter at all what you buy?
You probably got delayed because:
1. You have a similar name to a convict.
2. Your height/weight doesn't exactly match what you put down when you registered your driver's license
3. The FBI was overwhelmed by requests, wanted to get donuts, literally no rational or good reason other than someone wanting to be a pain in the ***.
And yes, you will probably get delayed. I have a CCW permit, am considered a 'trusted person' by the government, never had any legal violations other than some speeding tickets, but I get delayed EVERY SINGLE TIME I try to buy a firearm, and it has been that way for almost a decade and across a dozen guns.
" Rifles but now apparently everyone is a killer so gun laws are getting worse and worse and yes I know it's for our safety but it's a pain for us. Thanks though!"
Gun laws have nothing to do with safety. Gun laws have everything to do with fearmongering and people being afraid of something they are ignorant of.