I’ve searched and done some research on borescopes. Seems a lot of folks have really disappointing experiences with the ones that connect to a phone or computer. And at least some seem to think you need a progressive lens to do any good. I want a borescope small enough for .177 airgun rifles. An airgun forum I frequent seems to recommend, at a minimum, a $1,600 Hawke progressive lens dedicated borescope system. I just thought I’d ask if there are any less pricey options that I shouldn’t overlook. Thanks.