Gawdzilla Sama
TImeToSweepTheLeg
My sister is in actuary and I asked her the same question some times ago. Her answer : it does not matter, they are insuring for the risk, not for the dog breed, not for the owners. Thus, the risk, showing that some dog breed indeed trigger that risk more often, reflect the actuaries.
Just a wild guess, but if .38 are far more in accident and payout by insurance, than say a 357 (independent of value insurance) then the former, the .38, will get higher "gun" premium.
And higher than a Thompson submachine gun, because fewer of those are currently being used in garages in Chicago?