Today I picked up my new .22 QB78 at the Mac1 shop.
It was tuned by their smith, who was part of the design team on the QB78, and
fitted with a baffled muzzle break and 3-9X32AO Beeman scope.
I was amazed at how quiet it is and I'm really glad I had it tuned there.
The smith showed me the main valve that was on the stock gun and its
threads were chewed up badly causing leakage. He replaced it, of course.
It shoots like a dream and seems very accurate so far with casual plinking.
I'm very pleased!
BobD