Chris, thanks for invite on Tuesday, sounds like a lot of fun, but I wont be able to make.  I have made arrangements to take my rifle down to Douglas barrel.  I know they can do the 38-55, but I'll ask about the 38-50.  I'll make a last minute decision then.  For the barrel I'm thinking a 28" 1:12 twist, SS, finished to .700" or .750" at the muzzle.  CPA makes Schutzen style butt stock (left handed) for the Ruger so that's on the list as well.  To start I'll mount a scope.  With irons sights I'll have to be a little more creative.  A rear tang sight will likely be out of the mix with the rifles tang safety. 

Thanks for input guys I appropriate it.

Bob

Boob D
Further thoughts, suggestions.   
I have shot my 38-50 RH out to 1000yds and for Midrange matches. 
It is a rebarreled Browning BPCR, with a 10 twist barrel and importantlyit was chambered with a Tight Neck 38-50 reamer.with minimal 0.050" freebore followed by a 3 degree per side leade.
Load is 62.5 grains of Swiss 1.5 under my DDEPP 360 grain bullet for 1375 -1400fps. 
As has been mentioned, it is a good one for BPCSillywet.
The cases are made simply from 30-40 Krag brass. I size the Krag brass with a 303 brit die, then load with 8 gr of Unique followed with a snugly tamped case full with Corn Meal and
a dab of bullet lube.  Cases fire form nicely for further loading.
After fire forming I neck turn the cases just enough to mack the necks more circumferencialy uniform. 
A great cartridge, the 38-50 RH.  It seems to have the optimum case capacity for 38 cal BP. And it will work well, also with Smokeless loadings, too as others have said
beltfed/arnie

Boob D
make sure you get the 0.375 groove diameter rather than the old 38-55 diameter of 0.379-0.380.
You will have more choices of bullets that way.
beltfed/arnie