I have shot squirrels with a Revelation 120, 22 inch barrel(marlin 60) and the bullet goes right through.Using Remington SubSonics. Shot one the other day with the Remington 510,25 inch barrel much quieter,but the bullet did not go through the critter. Am I correct that the 3 extra inches not only quieted the shot more so but also slowed the bullet down?

Cliff