its odd that ive had a few 22's explode and no growlers. My advice to anyone searching for an answer: pressure in any glass vessel isnt safe. 12,22, growler etc. use PET bottles or go the kegging route.
i continually bottled with growlers (whiskey jugs) for 1.5 years. never ever had a problem, that doesnt sound like russian roullete odds?? ive had 22 oz's go boom a few times. anytime you put pressure in glass its a risk even 12 and 22's. maybe i got extremely lucky i now fill those growlers...