DLR, Way off scale from what DP has done, the AMRAAM And Sidewinders are waaaaaaaaaay too small.
That's what I get using the stats of them and scaling them.
So unless you or DP's got different stats, these are correctly scaled...
EDIT: I found DP's Sidewinder. While the winglets are different due to model differences, the core body should be the same. 3.02 meters long & a diameter of 127mm, which turns out to be 66-67 pixels long & 3 pix thick. DP added an extra pixel in thickness, and 1-2 in length. Likely for Shading detail.