Not vague at all. He has specified a caliber and action. His reasons for those choices are irrelevant. He is simply asking for recommendations on make and model as well as possible sources.Pretty vague request. What's the primary objective? General pests? Coyote? If the targets are raccoon and under, I'd strongly consider 17 HMR unless he has no other animals around that would be at risk of ricochets or over penetration. I dislike .22LR specifically for this reason, also. The 17 has almost zero risk in these two regards.
.223 can be useful in careful hands with a very fragile bullet. Just be mindful that much of the cheap ammo available is fmj and should be avoided for control work.
Just answer the questions he is asking. Very clear and simple.