I can't imagine that long a tube is required for an air rifle to produce its max velocity. But I have an open mind.Are longer barrels (28") worth it?
I need to check if my local dive shop will fill to 4500 psi.
ZacharyR,I have a RAW in .22 they are very solid simple accurate PCP rifles. They don't have the easy adjustablity of some except for the hammer spring. But if you just want to find a pellet it likes and shoot they're a very solid accurate gun. Mine will hold its own or outshoot my CZ457 out to 65 yards and on a windstill day even further.
This. As chief of my department I cycle the compressor occasionally anyway whether I fill a rank or not. Out whole system is in a enclosed trailer with choice of diesel Gen or shore power. This is how I fill mine and out of date tanks are free. They do need to be tested in order to be filled by most placesSCUBA tanks are only 3,000 or 3,500 PSI. Most likely they can't do 4,500. Paintball shops fill to that pressure but for much smaller tanks, so they may not be up for doing a much larger tank.
There's only one place in the greater Houston area that will fill a 4,500 PSI tank. It's a company that services the emergency SCBA equipment for the petrochemical plants. If you're in a rural area and make friends with the local fire department you may be able to get your tank filled from them.