For anyone else:
Its on Charles Lindbergh Blvd, just a little bit west of ,and opposite, the IMAX theatre which is next to the Aviation Museum.
Easiest way is from the south come up the Meadowbrook Parkway and take the Hempstead Turnpike exit but stay on the semi-service road and take the exit that says Coliseum.
Take Charles Lindbergh Blvd across Earl Ovington Blvd and its on the left about half a mile.
Small sign says rifle and pistol range. The road there is one way so if you miss it you will go all the way around and try again.
If not coming from the south, get off the Meadowbrook Pkwy at Hempstead Turnpike Westbound and make a right just past the Coliseum onto Earl Ovington Blvd NOrthbound.
make a left onto Charles Lindbergh Blvd. and its on the left about half a mile.
Small sign says rifle and pistol range. The road there is one way so if you miss it you will go all the way around and try again.
If coming down Hempstead Tpke (24) from the west, turn left and go north up Earl Ovington Blvd, make a left onto Charles L., etc etc.