all my grease guns have adjustable nozzels. you can set them for different pressures of grip to the zirt. unscrew the nozzele out and it will release. unscrew it too much and it will not hold on to the zirt. one size does not fit all and so they are adjustable.
grease gun 101.
you using the correct grease?
grease gun 101.
you using the correct grease?