traps hunt 24/7 and will be most effective, where allowed the ultimate around home quiet and in barn/quonset type rig is the weihrauch hw30s .177 in pal required velocity, does actual 625 fps with 8 gr pellets and handles the magpies, crows, squirrels, gophers to 30 yards just right, not too much over penetration issues or noise and they stack pellet on pellet at 10 yard accuracy and last for generations if you don't leave cocked for weeks on end, you can get the full power spring kit and swap into a non-pal version but maybe not a great recommendation?...but if an airgun can really do close to 495 fps over the chronograph with harder higher alloy content pellets like crosman points/domes etc. then you will do similar work to 20 yards, I had one that did 426 fps actual with 14.3 gr crosman point pellets in .22 and it killed a lot of stuff to 20 yards, a lot of gophers, grouse, crows and magpies, tuck that in behind the ribs of squirrels and they will be killed humanely, or headshots work good too, depends if you want them to die right there or maybe over the fence lol
hw30s is the buy once properly the first time type option and take it with you wherever you go if only to have one airgun in life, but only come in handy part time and only certain places you end up, traps are more versatile and likely more effective and they hunt them all day long