not really better but different...
the falling block design has some advantages such as:
1. larger ejection port, makes no difference which way the case wants to jump out...makes it easier to hit you in the forehead
2. barrel only moves latereally
2a. straight cartridge feed
3. as the locking block wears, you replace it (on the browning you replace the slide or get a new barrel with oversized lugs)
must be way the hk p7 is the best action