Thanks for that - i went through from when they lost Newt till the end of the elevator scene just before they get back on the dropship.
Looks like there was only one illuminated static counter of 42 and one working counter (possibly or just movie magic)
The working counter is shown when ripley loads a magazine, its shown at 00 then goes to 99 and then counts down to 95 - incidently you never see a 95 again.




Etc etc etc
in the elevator they use a mix of stunt rifle and the 10 hole hero


Whats interesting is the "working" counter has a screw head under the display


and this is the pulse rifle she files at the queen which also has an illuminated counter and looking closely you can just make out the screw head under the counter.



Can anyone identify the pulse rifle in question? and or the existence of a working counter in an original pulse rifle.