Case Trapper runs a 3.25″ clip point blade in Tru-Sharp Surgical Steel; Case Sod Buster Jr runs 2.875″ of sheepsfoot in Tru-Sharp Surgical Steel. The Case Sod Buster Jr is the lighter of the two by 1.90 oz.
01234567 in
Case Trapper · Clip Point
3.25″ blade · 4 oz · ~0.76″ tall (derived)
Case Sod Buster Jr · Sheepsfoot
2.875″ blade · 2.1 oz · ~0.75″ tall (derived)
Length and spine thickness drawn to true scale from published specs. Profile is the shape family's outline, not a scan of this model.