Welcome aboard!  The subject of the Uberti high-wall copy has come up several times on the various "rooms" of this board.  I think that the opinions have varied a whole lot based mostly on the shooter's individual background and expectations.  I have seen a couple of the basic rifles in .45-70 do pretty well right out of the box and one .45 rebarrel job that was engraved and tricked out to be somebody's "special" hunting rifle.  You don't mention the triggers...are they standard triggers or set triggers?  The standard trigger may be tuned to a very fine pull and is actually preferred by some target shooters as being a little faster.  The set triggers have their supporters as they can be adjusted to such a light pull weight they are more controllable.

     As for the Grn Mtn barrels, I was very favorably impressed with the .32-40 and .45-70 barrels I put on two original high-walls, so have every reason to think they will do well for you in your application also.  There have been several threads lately on the .38-55, so you should be able to find lots of good ideas with a little searching.  Data for the .45-70 is so widely available that I'm sure you are already finding that.  I would not be afraid to shoot any load for .45-70 that is safe in about any rifle in my high-wall, but to be absolutely safe, you might avoid the ones designed for the Ruger #s 1 & 3.  Congratulations on your fine start on these rifles and again, welcome to the forum.

Regards,
the Green Frog

Thanks for the kind words.  The triggers were both plain triggers, but I have just finished converting the 38-55 to a single set trigger.  I am finding plenty of info on both cartridges, and I have heard wonderful things about Green Mountain bbls. My main concern is the action itself.  It looks great to me and the price was right.  I have read mixed reports about these rifles, but most bad stuff about bbls(wrong twist & c.).  Wondering????

I meant the uberti bbls.  I don't think I have heard anything bad about the gm bbls.  I was wondering about the action itself.  Sorry for the confusion.

How does the C Sharps HiWall workmanship compare to the Uberti HiWall?

Pete, you say that the best twist for a 38/55 is 1-14 or 1-16.  However, Campbell in Vol II of The Winchester Single Shop says factory twist was 1-18.   Is this correct?  If so, why would the factory use a less than optimum twist?

The factory load was, and is, 255 grain.  Are heavier bullets more popular now?

gunsbrad, (or others who might know)

who did or does the Uberti rebarrel with the green mountain barrel?  Have a Uberti Highwall 45-70 that I may want to upgrade.

regards

3T

P.S

Upon reflection this was pretty rude of me...jumping on the forum with a question right off the bat.  Let me say that I have enjoyed reading posts here for quite some time and have learned a few things that have been useful to me.  I am just dipping my toe into the Single Shot world.  I own a few Ruger #1s and Handi Rifles but have just this past year purchased my first Lone Star Rolling Block 38/55 and Uberti Highwall 45-70.  Just this past week I began working on black powder loads for the first time for these two rifles.  So far so good.  So, Hello! and I appreciate your site.  Look forward to visiting with you.