Mauser 1914 32 ACP hold-open catch

[gwpeeler]

I have had malfunctions with the PMC ammo also. I have never tried the Winchester.  Midway has the Fiocchi for $13.99 a box which is quite reasonable even with shipping added.
Mr. Mason can tell you more but from your serial number your gun was made around 1920.
Wayne

[Battis]

Thanks for the date info.
The problem with getting ammo is that I live in MA.  Midway and some of the other Big Boys won't ship ammo, or even unprimed brass, to MA. 
I just bought a box of Lellier & Bellot ammo in NH that I'll try.

[pardt]

I have always used the Winchester ammo as it is readily available where I am at. Guess I have gotten fortunate that so far my pistols all have functioned on it. Stoppages I have had been due to Magazine issues

[mike9905]

Battis: The internet is your friend. If my local gunshop does not have ammo I want I go online. Check out ammoseek.com.

[Battis]

I can find the ammo, but getting it shipped to Massachusetts is tough.  I just bought 100 .32 cast bullets (just plain old lead bullets - no primers, powder, brass) from Montana Bullet Works but I had to have it shipped to New Hampshire.  Funny things is, it's perfectly legal to ship to MA.
So, I'm going to try reloading these little buggers.  Should be fun.