Question from a friend:
CVA Optima 209 with CleanBore Primers and two 50g pellets of 777 behind a Powerbelt Aerotip.
This gun fires fine in the summer and warm weather, but when hunting in cold weather, the report is much reduced and bearly ejects the bullet.
This is a sealed, break action and this occurs after leaving it out in a cold garage overnight during the hunt, to keep the gun and scope at a constant temp. The blind is pretty warm during the day, so this involves a few warm/cool cycles.
Is this typical of inline MLs, and are there any suggestions to avoid it?