The tracer card collection is know to be not 100% complete and there wasn't another version.
But there is something not quite right. The RA attestation register does not have a George Lockwood with the number you quote. It also has no entry of any name with that number. There is no entry I can find in the London Gazette for a commission relating to the number or the name.
Officers' records for the period are held by the National Archives although not all survive, he doesn't appear there.
Unless others can find something you may have to wait to see if your application bears fruit. If Glasgow cannot match the name and number then your application won't succeed.
MaxD