I don’t know if anyone has done this before, but I’d really like to get an extremely long custom barrel for a manual action 22lr repeater. I recall reading in a magazine many years ago about duck hunters who shot close to heavily populated areas, so they used custom barrels roughly six feet long. These barrels being a little over double the standard length resulted in greatly reduced noise. I’m hoping to achieve the same with 22. I know I could just use a standard barrel and shoot CBs or the like, but I’d much rather get that same nearly suppressed performance out of standard inexpensive bulk pack bricks. My thought right now is to get a barrel so long that a regular .22lr fired in it results in a squib, measure how far down the bore the bullet got, then cut the barrel just short of that length. Does anyone know of anything like this being done before?