I not only have a rifle for each catagory but also have a couple options for each depending on terrain and expected distance.
Cat 1
I have 5 center fire 22 caliber rifles and am ready from an 11 pound varmint rifle to a 4 pound T/C contender carbine.
Not to mention the rimfires.
Cat 2
Open sights and scoped.
6.5, 308 (X2) 30-06, 338 WM, 44 Mag, 45-70 (X3)
Cat 3
Open sights and scoped
338 WM, 375 H&H, 45-70
Cat 4
375 H&H
If you say to me, we are hunting X in Y, I would be ready to go about an hour.
With all that being said.
If I could or had to do it all over again.
2- Varmint rifles both in 223 - Both CZ 527
one american with a 3-9X38 scope (what I have)
One Kevlar Varmint with a 6-24 X42 scope
Cat 2
An open sighted 308
A scoped 308 with a 3-9X38 or 40.
24 to 26" 12 Ga shotgun with rifle sights or a 4X32 scope.
Cat 3
3-9 or 4-12 X 40 scoped 338 Win Mag
either a 1.25 -4X 24 Trij or fixed 4X33 scope on either a 338WM or a 375 H&H.
Cat 4
470 NE SXS.