You won't, because it doesn't use clips, it uses magazines. Sounds picky, but, there are weapons that use clips, not magazines. Here is the basic difference, a magazine is a container which holds ammunition, while a clip holds ammunition in place when outside the magazine, and in some weapons with an internal magazine as well. For example, the M1 Garand has an internal magazine that you load with a clip that stays in the weapon until the last round is fired and then it is ejected. The M1903 Springfield has an internal magazine that can be loaded via a clip, but, the clip does not go into the magazine. The M16 has a magazine that goes into the magazine well of the weapon. You can load the magazine with a clip, but, the magazine has to be out of the weapon to do this. Try e-gunparts.com for magazines.
22 caliber ammo
38 caliber revolver ammo
a gunsmith needs to check both the ammo and rifle.
A Colt police positive ,32 with that serial number was made in 1909.As far as ammo,you can check with any gun shop.
Absolutely not.
You will need to call Colt for a definitive answer.
MecGar
None.
You need to contact Colt
Gold Dot
Yes
From what I read, the Colt diamondback is made of steel and should be able to take plus P ammo. To be on the safe side, check with a gun dealer.