Hiya,
 
	 
 
	Got this rif, used it twice now but the pump handle just seems to jam every so often and I can't seem to repump it to fire again? 
	Occasionally it sorts itself, I get another few shots, then it happens again.
 
	Has been happening dry firing and when loaded - can get a video if necessary too.
 
	Just wondering if anyone knows any reasons this would happen/possible fixes?
 
	 
 
	Thanks