You can't penetrate an inch into a concrete wall with an aluminium bolt 'accidently'... I've got one of these and it is damn powerful though, very very accurate at around 30ft and still can make a decent hit 60ft (20 yards) with an inch off target. Well, I can anyway :)
You can't penetrate an inch into a concrete wall with an aluminium bolt 'accidently'... I've got one of these and it is damn powerful though, very very accurate at around 30ft and still can make a decent hit 60ft (20 yards) with an inch off target. Well, I can anyway :)