You cant, its illegal You cant, its illegal
A Colt police positive ,32 with that serial number was made in 1909.As far as ammo,you can check with any gun shop.
use 32-20 ammo The caliber of the ammo is 32-20. It is not common although it is still available.
38 caliber revolver ammo
Colt .38 New Police was the Colt name for .38 S&W. Same ammo.
You need to contact Colt
a gunsmith needs to check both the ammo and rifle.
Have it checked out by a good gunsmith.
32/20
.38 special Stay away from the "+P" ammo
.32 S&W Long If that doesn't work you will need to compare the serial number and figure out the manufacturing year, there were minor variations depending on which decade it was made; and of course there are a handful with aftermarket modifications. But the 'police CTG' models should have no trouble using .32 S&W Long. It should also be interchangeable with other ammo of the same size such as: .32 Colt New Police .32 Colt Police Positive
32/20
You need to contact Colt for a correct answer.