Well, I started martial arts training in 1969, so I guess that's close enough to 50 years for our purposes. I started shooting at about the same time, and I had my own gun by 1970 or 1971 (I honestly don't remember exactly). I've never injured anyone with a gun, or even caused anyone pain with one. I've certainly done both with my martial arts training. I've never killed anyone, but I have broken a mans neck. I suspect he's dead by now, given the life expectancy of most quadriplegics. So it would certainly seem that my martial arts training is a more likely source of injury than my shooting hobby.
If you object to martial arts training, I don't understand why you're here, to be blunt.