I can help you with the rule out. The P2 in compact is exactly what you’re looking for. I have one. But there’s a but. Mine is also a .30 and .25 full size. Because of its power capability and how easy it is to jump from caliber to caliber plus barrel lengths, it might not be your cute little pellet woods walker long. When you switch calibers or barrel length, all you need is your reg setting jotted down in your notes to return it to exactly how it was shooting before. A Uragan compact would be perfect. And deadly. But when you bump the reg up to get your 18’s going 900, you are going to be cutting it close on the shot count. Another demon you face with the Uragan is it will shoot slugs. Yes, I have one. Along with this monkey on your back you face a real horrible shot count and having to install a larger bottle.