I don't doubt that it works. But...it sounds like a pretty expensive way to shoot pellets. Wouldn't a pellet gun be simpler? A few hundred blanks later and you could've bought an inexpensive pellet gun with a few tins of pellets..
I have a Daisy 881 my dad bought in the late 70s. I'm sure it has tens of thousands of pellets through it. That thing will not die. It will still put RWS Hobby pellets into one hole at 10 meters all day.You don't have to spend a lot of money to get a decent pellet rifle. I have a crosman phantom I bought for $80. I never have any problems with it. I have put over 10,000 pellets through it. I have shot it through a chronograph. It shoots a constant 1040 FPS. I did have to put new rubber in the compression cylinder one time after 2 years of use. It has lasted a lot longer than the Benjamin Nitro NP I paid $275 for that fell apart in 2 weeks.
When you buy a pellet rifle no matter who makes it or how much you paid for it they all pretty much have the same power plant. You are paying for the name and nicer furniture. The charlie da tuna triggers fit a whole bunch of popular pellet guns. I have one on my phantom.