If you mount up a very long scope, it will inhibit loading somewhat. I had a Leapers 3x9 airgun scope on mine for a while, and mounted it to the rear as far as practical. I was able to load it all right.Bear in mind, you must hold the underlever at all times when loading, and hold it firmly.If that baby slams closed on your finger, you may lose it.I took my scope off the first B3, because the gun just didn't have the accuracy or consistency to warrant having my "best" airgun scope on it. I have that scope on my Crosman 1077 right now, to see what I can get that gun to do.I will never buy another air rifle scope that doesn't have an adjustable objective.I have two Leapers with AO now-the 3x9 and a nice 4x32mm.My eyesight is so screwed up I could never get my Centerpoint 4x32 to have both the target and the crosshirs in focus at the same time-but it doesn't have AO.My second B3 seems possibly more accurate, though I have only fired it with the open sights so far.
Having said all this, I did get some nice groups from the first B3-I just couldn't do it consistently, and would get totally unaccountable flyers all too often. And not flyers like I get with my Beeman 1024 springer, but much worse ones.So, as I said, I removed my scope from it for now.
jon