Ahh, it's a gorgeous gun Sonny, and you need one in your collection just for the Enfield makers marks and broad arrows.

'Course, you know had England allowed, enfield would have just turned out Cdn made 455 webley's instead of pulling a, "china" on the design eh?

(now you realize you'll need a broad arrow marked webley to compliment it, and of course a tanker version.     )

Far as the 38S&W, they're a shorter round, same calibre.  I have load data and tested load data if that'll help.  Not sure who'd stock ammo but am sure it's around.  My first suggestion would be raynershine?  I'd avoid jacketed rounds, stick with lubed lead projectiles, softer is better.  I just use lubed 158gr swc's.

You're just gonna have to start reloading Sonny.  Brass and dies are easy to come by.   

I didn't watch this whole video, but everyone sells these lee kits for around 150.00;  you'd also need reloading dies (20-50.00/calibre depending on brand) and one or two reloading manuals (I'd recommend the lyman, it'll cover everything you've got) http://www.lymanproducts.com/lyman/publications/49th-edition.php




Edit:  watched more of the video, I don't use a powder throw, I measure the powder for every round.  (if anyone want's a powder throw, I've got a basically new rcbs I'd sell)

I was just checking online and BassPro has some .38S&W

Well that was easy.  I miss that place in Calgary, they used to carry the less common stuff.