They're only a few saw strokes away.

 

In a word no.
A mares leg can be had three ways. The easy way is to buy one already made as a pistol. Knowone makes a pistol in a lever action 45-70.
You can buy a 45-70 16" carbine and cut the buttstock down and it will be 4" too long.
You can buy a 16" carbine and register it as a SBR with the ATF and then cut the barrel down to 12" and cut the stock move sights and tube but a factory rifle receiver is always a rifle. You can make a pistol into a rifle but not the other way around without registering it. Figure $400 or so in taxes and fees.
The rossi ranch hand in 45LC and pretty cheap or just buy a carbine and a spare stock to cut down. I bet after a few range sessions you go back to the carbine. Besides full power 45-70 would be hard to hold with a turkey neck grip. I know 12 gauge is.

 

Diamond Jim Buchanan's Custom Sales and Service Here is a mares leg but 45colt , 44mag 44-40. I honestly think one chambered in 45-70 would be to hard to handel.

 

The smallest .45-70 I know of is the BFR Revolver by Magnum Research.
GH1

 

That's not a mare's leg, that's a hog's leg :biggrin:

 

I have never seen one but it would be cool and quite the handful.

 

"A history of the mares leg" found this on youtube.

 

I have shot a derringer chambered in 45/70... i shot it with a factory hornady leverevalution round.... 1 shot was enough, but if people can shoot the derringer the mares leg should be ok.

this is not me but you can see they are real.

 

once a rifle always a rifle. but a pistol can be converted in to a rifle and back in to a pistol.i'm working on building a receiver to build a mares leg. if you have a marlin 1895 reverse engineer it, build it as a takedown pistol. then you could switch the barrel out to a rifle lenght, but you'll need two stocks one short, one long. then as long as you don't forget to switch stocks when you switch barrels you'll be good to go. if you use the long stock with the short barrel you better have the sbr stamp and taxes paid.

ps i'm building a winchester 94 right now and the marlin 1895 will be next

 

Just Do It ! Then ya know how it feels to get kicked in the mouth or head by a horse !!!! Yeeeeeeeeeeeeeee Hawwwwwwwwwww !

 

Never seen one. I think by the time you reduce the loads enough to handle them, you would be better off going with .45 colt and use +P loads. And there is the issue of magazine capacity. How many could a mares leg .45-70 hold ... 2?