Recently acquired 500 pcs of 105 gr LSWC to use for loading in 38 spcl. My load manuals do not show any info for this bullet. I have two powders to choose from Titegroup and W231. Can anyone help with starting load info. Much appreciated.

From the Lyman Reloading Handbook, 49th edition:

For a 120 gr bullet plain-base bullet, for WW231 it lists 3.4 gr (693 fps) as a starting load and 5.1 for a normal max load (986 fps). 5.4 gr for a +P max load (1036 fps).

For the same bullet, using Titegroup, it lists 3.8 to start (900 fps) and 4.3 for max (1014 fps). No +P max given.

They list CCI500 as the primer used with Federal cases.

Based solely on weight it sounds more like a 9mm bullet than a 38 Spl. to me.
You'll need to check the dia. - if .356 then a 9mm if .358 then it is a 38 Spl.[sounds really light to me]. Just my $0.02!

Lee makes a mould for a .357 cal. 105 gr. LSWC. I'd start with cp1969's data and work up from the starting load.

I know Lees 105 gr.'ers worked very well in a 9mm too, so if you have one you might give it a try there too.

These were made on the Lee mold as Jellybean pointed out. I do not own a 9mm so will be using these in S&W 586.