Well I shot my MK2 compact 22 with my new helos gen2 6-24x56 I shot a mag and half not quite 2 mags but I was going in and out because it's was only 30 degrees it has a Huma bottle reg set to 150 sighted in at 30 yards and was amazed at accuracy and with the scope I just shoot pellets not slugs but I could see them going threw the same hole I couldn't believe that the glass was that clear on 24 power being a 600 dollar scope I'm running a carbon fiber sleeve and a peek spacer to tension the barrel also I was shooting marshmallows at 50 yards with second mag and noticed the pellets were getting lower and lower I found the Huma reg was down to 100 bar and it's set at 150 still had approximately 200 bar in the 480 bottle and thought I should be getting at least 3 mags using the 480 well the gun was outside the whole time and the Huma reg must have stuck from whatever lube was in it I guess because I brought it inside and about 10 mins it started to rise back up to 150 and I dry fired it several times it stayed there I thought it was weird unless there is just a small hole that would of froze shut or something it usually isn't outside that long when I shoot in the winter I'm usually in and out of a car or the house with the gun between shots to stay warm so it should be warmer to what is everyone's thoughts I think it was lube that got cold and stuck the reg shut does that make sense I don't know though it is pretty new and hasn't had to many shots threw it yet either any ideas ? Would Huma use lube inside it ? Other than that it was good fast to sight in up a few clicks and about 8to 10 to the left but I had some pretty good wind scope is mil mil ffp so the power changes shouldn't have changed the slight hold over I noticed changed drastically opinions of what happened would be great thanks