I shot a lot of .25 and .30 caliber FX rifles at targets and you need a lot of air. I got a Daystate Coltri compressor (which is a real scuba compressor). Which made everything much more enjoyable 😀
If you are shooting a lot with larger calibers your life will be much easier with a quality compressor. Years ago I bought an AoA Coltri MH6 220v. Fills a 70cuft tank from 3000 to 4500 psi in 12 minutes!!!