Colt .38 Short Data needed

[presidents100]

I have a old Colt police positive serial # 377497 .
What year was it made?
I cut down some 38 special cases to fit it. Its the 38 colt short ,761 case length.
Is their some loading data for this old round?????

Information

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[MEHavey]

First check #3 at
.38 Short Colt or .38 S&W in a Police Positive - ColtForum

Then consider:
http://www.reloadammo.com/38sw.htm

[joem]

Slug the barrel to find the proper diameter. You may find it needs a .361 bullet. I buy .360 diameter bullets and am working up a load using Trail Boss powder.

[MEHavey]

Looks like a `37 vintage.
Serial Number Data

[presidents100]

barrel sluged .355
I made a mandrel in my lathe to slip a 38 special over it and hold it in place with the live center. Using a negative rake high speed cobalt steel lathe tool. I cut them to .751 to .761.
With the .355 bore I am using a lugar carbide die to size and decap.

[Pete D.]

I'm a little late to this thread. There is some load data for the .38 Short Colt in Nonte's Guide to Cartridge Conversions: a 130 gr. lead bullet with 2.0 grains of Bullseye and a 145 grain lead bullet with 2.5 grains of Bullseye.
Any reference that I have seen to this cartridge notes bullets at 0.361. That 0.355" bore....that is from land to land?
Pete