The LRX I have actually has a 24" barrel and a Decelerator pad on it from the factory.
http://www.guns.com/reviews/marlin-1895xlr/I added XS Ghost sights AND a Smith Enterprise ladder sight for long range shooting.
The ladder sight I have comes with a tightening thumb screw on the side to eliminate movement
when shooting.
I figure 1,500 mv for the 500s will be enough and 1,600 for the 400's
This gent from OZ seems to have a pretty good handle on the long range game.
He is using a Smith Enterprise sight.
