I was always wondering how the folks here who make their own BP could compare. Shipping the stuff becomes the issue and travel can be vast. I was watching "Storage Wars" and a gal found a strange pistol. It turned out it was a device that measured the pressure from the BP. I've seen similar for cannons but they are like mini-mortars. Now i'm wondering if any one out there knows about these, knows someone with one or has one so that we may judge each others endeavors. But I'm pretty dern certain the my BP can beat up your BP!