Is there a boresighter that will work with a baffled PCP airgun barrel? I have several boresighters but they are not long enough to get past the baffels and into the barrel. They work fine on my breakbarrels and pistols. I've heard that you can attach a small straw to the end of the boresighter probe and get get close to enough to your target and then adjust from there. Any hit hit the target gives you somewhere to start. When setting up a new rifle and scope all I need is to to hit target and then I can easily adjust from there.