So I am interested in getting a Colt Detective/Agent, snub .38. I've also considered a Dan Wesson with a snub barrel, and I've also come across a S&W Model 10 snub for around $425. Wondering if they are all comparable to size in frame. Having 6 shots is important to me over the J frame, but I also want to pocket carry. IDK if thats possible.

A air weight J-frame is about all I want to pocket carry.  A steel J-frame or K-frame would be to heavy to pocket carry IMHO.    An aluminum K-frame might be OK to pocket carry.  S&W did made an aluminum framed version of the Model 10, the Model 12.  They may have made other aluminum K-frames in the past, I am not sure.  Unfortunately there are no current productions aluminum K-frames.

Don't know about Colt or Dan Wesson.

I think a Det Spl is kind of big & heavy for a pocket, but that's just me.

Dan Wesson Model 15 or 715 is just slightly larger than a K-frame.   You can use K-frame holsters and speed loaders.

Not something I would try to pocket carry.

The Dan Wesson 38P and 738P (which are super rare and hard to find) are the size of a J-frame and 5 shot.

Colt Cobra, light enough and easily carried. If you really want to pocket carry I would suggest a ''hammerless'' design.

I have a Colt DS, a Colt Agent and a Dan Wesson with a snub barrel. The DW is way to heavy to carry in a pocket on any regular basis. It's also too big to do so. The Colt DS you can get away with in a winter jacket but your jacket will pull to one side. Of the three that I mentioned the Colt Agent is your best bet but the hammer will catch on your pants or jacket when you pull it out. Not always but regularly. Now for the pics.


Colt Agent with Boot Grips



Colt DS



DW with Snub barrel

All of your choices are a bit large for pocket carry.  The Smith will be slightly larger than the Colt.  Not sure on the Dan Wesson, haven't seen one in years.  

Most Colts are moving into the collector realm and price.