I have a junky little yella dog that is alittle over 3 that is probably halfway to the 500 mark BY HERSELF... She has been pretty much my only strike dog for the last two years... Other than hogs caught with my buddies dogs and one of my other chit eaters getting lucky... If my no account dog can catch that many, guys with sure enough good dogs and good spots to hunt shouldn't have any problem...
Now if you want to count hogs she found but we didn't catch, I'm sure it's over 500 but she sucks...