Swamp/Battle Rat vs. DogFather

[SS1945]

These knives are very similar. Are they made from the same steel, and are they comparable as far as toughness. Can anybody verify that for me? I know there both made by the Busse family. Thanks.

 

[asi]

Dog Father is from S77 (modified S7) Battle Rat is from SR101 (modified 52100).
both are great knives!