Then you can buy the reliable one that’ll cycle what you plan to shoot, and if you arent familiar with the process you can get help shooting the gun for fit using a pattern sheet so you get the fit right. This is something you can easily do yourself if you know how to do it. Or, if you arent a solid shotgun shooter already you could do worse than to take a lesson from an nsca certified coach to go over some mounting fundamentals and help you fit the gun and proof that fit on some moving targets. That is $ well spent.