50-110 OR 50-140 rechamber using 500 S&W barrel

[NFG]

Anyone hear of someone doing such a conversion OR a stub barrel? 
 
I keep looking to do one in 30-36" barrel.  Would be similar to a 50-70 already done in a TC Encore pistol, but the chamber walls would be thicker if I use a 10-20 ga bbl and turn the walls to 0.075" thick or so.  Put all the strenghth in the barrel chamber walls and use the stub as nothing but a "hanger"...similar to what Browning does with their alum framed BLR's.
Turn the firing pin end OD down for "normal" firing pin OD for LR primer use, and pressures would be well below 40 KCUP.
Thanks.

[AtlLaw]

Anyone hear of someone doing such a conversion OR a stub barrel?

I thought of it as soon as I heard about the 500 S&W.  Hi-ebber, and day is always a hi-ebber,    when I saw that the bullet diameter was different I kinda lost enthusiasm.  I guess a stub or rebore and rechamber are the only options.   

[NFG]

Us a .500 cal bullet in the 500 S&W barrel and call it a ..499-110/140...sorta like Ed Hubels .499 HE...that case was just TOO big.
After checking on die prices I think a 50-90 would cost over $100 bucks less, and do the same thing.
Been ruminating on this for a couple years but other projects kept getting in the way.  Just getting ready for winter's hibernation and stockpiling pieces and parts so I can start whatever finally grabs me next spring.
The 500 S&W scares the heck out of most people so something bigger, badder and harder hitting runs everyone off.
What happened to thew .499 HE conversion......
A couple were happening a few years ago before I got disgusted and quit posting ANYWHERE.
I keep picking those "WHO cares" projects.
Luck

[26-t]

What brass will you use? Most of the 50-70 brass that I have are balloon type that are very low pressure rated brass. I don't know about 50-90 / 50-140 case design but I am sure it is not able to hold up to 500 S&W pressures.   Keep up the research as it would be a fun project for the home builder like me. 26-t

[Smokin Joe]

I stubbed a .50-90 2 years ago using an untapered blank from Gun Parts Corp.

Starline makes brass that's as strong as anything around:

[AtlLaw]

I stubbed a .50-90 2 years ago using an untapered blank from Gun Parts Corp.

Joe, did I ever tell you that you're my hero when it comes to big bores?   

[Smokin Joe]

Richard, a hero is the guy who will pull the trigger on that hardware of yours! The 50 weighs 12.5 lbs and I use it for a chunk gun from the bench.   

[NFG]

Smokin Joe....NEF??  What OD did you use for the barrel shank and TPI.  I've done several NEF stub barrels in 17, 22, 6mm...all with ~0.900 OD shanks, 20 tpi.  I haven't checked Gun Parts for 50 cal blanks for over a year...I was going to use a McGowen cylinder and put the 30 bucks for contouring into barrel length and a stubb OD of ~1.00" if I have to use an Ultra 1.21" OD barrel stub and 0.935" OD if I use a 1.1" barrel stub OD and 28 - 32 tpi to keep the thread depth to a minimum.
 
Brass isn't the problem...plenty of modern brass available and reasonably priced...DIE cost is...50-90 dies run about $50 bucks...50-110 and up run $165 bucks to ~$275 depending on brand...and I will rent a reamer.   This is just a toy to play with...off the bench or tailgate and definitely weigh in the 15 plus pound range.   I get all the slapping around I need with my 50 Rigby and 45-120 "light weights".       Just want to lob some heavy lead at sage rats and not use 100 plus gr of powder to get it there.
Thanks for your info...and for all the specifics you can give me.
 
Luck

[Smokin Joe]

The blank I used is here:



As you can see, it's a 28" 1 in 24 twist. The bore is .512 and the O.D. is 1.25"

We think alike, as I used .900 with 28 tpi also. This gives about .167" of meat around the cartridge base, plus the remainder of the stub wall. I left the blank full diameter all the way out (I may turn it down in the future).
 I'm using a 70% Trailboss load under the Lyman 515141 (450 gns) and I also use 34 gns of 5744 with the same bullet for about 1350'. These loads are under 19,000 psi and are both low recoil rounds and are fun to shoot, if you get a chance after everyone at the range gets their turn!