Ron, I have a Sportsman HV too, had it for a while. I love mine. Yes, they are noisy. I have a Logun carbon fiber LDC on the end of mine, very effective. You might do a WTB add for a 1/2x20 UNF LDC on some of the other forums classifieds.
The Sportsman HV has John Bowkett's "Micro Movement" action. This action has been used on some other BSA PCP rifles, such as the Ultra and Hornet. I have an Ultra carbine too, so I am quite used to the action, and like the design.