I stand corrected on the Monte Carlo style stock on the Monte Bs. Here's an early Monte Carlo B with a Monte-Carlo style stock:
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=263807121This one is also an early one and it has the round-knob grip that I see on most Monte Carlo Bs (also has a ton of drop):
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=263866432Regarding your actual questions (which I failed to address):
-I think the gun you are looking at has fluid steel bbls.
-The bbls on the Scott you're looking at were never tested and proven (or proofed) for nitro loads. That being said, I'm not sure if they would be more dangerous to shoot BP or nitro load out of it. I would have a good 'smith look the gun over and give an opinion on the matter.
-As for the drop, there's been a lot of discussions about why some old guns have tons of drop in them. I don't think we've ever reached a consensus on it. I think old American shooters used to hold their heads up high when they shot. I also think they missed a lot. Other people disagree.
Hope this helps,
OWD