A rifle went off in the passenger floor board went through the firewall and hit the right front tire now the truck will start but not stay running why?

Must have hit something else along the way... track down what and you found the problem.

Either that or its total coincidence

See if this link helps:

https://www.askmehelpdesk.com/cars-t...ml#post1415281

Check all under hood and under dash fuses--it may lead to something.