Re: M1A2 Abrams Accuracy
The first versions of the M1 tank, and M1IP had a 105mm rifled barrel. They converted all of them over to the 120mm smoothbore some time ago, not sure when, but I've been on them both. I've worked on a few of them at times replacing turret components and pulled a few gun tubes for services...they are impressive and the fire control equipment is pretty awesome. The reticle takes many different things into account to include movement, range, temp, etc... and then corrects for the shot. The gunner can just use a center hold, much like a click-and-shoot, only its done for him at the click of a button.